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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 01:47:29 +0000
commit0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch)
treea31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/css/css-masking/clip-path
parentInitial commit. (diff)
downloadfirefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz
firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-scroll-ref.html5
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-003-ref.html22
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-004-ref.html22
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-001-ref.html11
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-002-ref.html11
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-001-ref.html13
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-002-ref.html13
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-003-ref.html44
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-svg-text-css-ref.html16
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-001-ref.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-002-ref.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/green-100x100.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/reference-local-url-with-base-001-ref.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/reference-mutated-ref.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/reference/reference-nonexisting-existing-local-ref.html2
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset-ref.html4
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset.html10
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset-ref.html4
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset.html10
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values-ref.html49
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values.html24
-rw-r--r--testing/web-platform/tests/css/css-masking/clip-path/svg-clipPath.svg7
209 files changed, 4891 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-ref.html
new file mode 100644
index 0000000000..49732d361b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+
+<style>
+ .green {
+ background-color: green;
+ width: 200px;
+ height: 200px;
+ clip-path: inset(10.59741054822%);
+ }
+
+</style>
+
+<body>
+ <div class="green"></div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse-ref.html
new file mode 100644
index 0000000000..edaf92cb8a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+
+<style>
+ .green {
+ background-color: green;
+ width: 200px;
+ height: 200px;
+ clip-path: inset(6.850317545375803%);
+ }
+
+</style>
+
+<body>
+ <div class="green"></div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse.html
new file mode 100644
index 0000000000..d42b2fe5a3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function-reverse.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-custom-timing-function-reverse-ref.html">
+<meta name=fuzzy content="0-1;0-350">
+<!--
+ Test that ensures that the bounding rect for a clip path animation is not
+ limited to the size of the largest keyframe.a.
+
+ This is the reverse of clip-path-animation-custom-timing-fumction.html,
+ and tests extrapolation in the negative direction
+-->
+<style>
+ @keyframes clippath {
+ 0% {
+ clip-path: inset(45% 45%);
+ }
+
+ 25% {
+ clip-path: inset(49% 49%);
+ }
+
+ 50% {
+ clip-path: inset(45% 45%);
+ }
+
+ 75% {
+ clip-path: inset(40% 40%);
+ animation-timing-function: cubic-bezier(0, -9, 1, -9);
+ /* Test that the correct keyframe's timing function is being used. */
+ }
+
+ 100% {
+ clip-path: inset(45% 45%);
+ }
+ }
+
+ .green {
+ background-color: green;
+ width: 200px;
+ height: 200px;
+
+ animation: clippath 10000000s -8717082s
+ /* halfway between the second to last and last keyframes.*/
+ ;
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="green anim"></div>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function.html
new file mode 100644
index 0000000000..4dbf3a44a9
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-custom-timing-function.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-custom-timing-function-ref.html">
+<meta name=fuzzy content="0-2;0-320">
+<!--
+ Test that ensures that the bounding rect for a clip path animation is not
+ limited to the size of the largest keyframe.
+-->
+<style>
+ @keyframes clippath {
+ 0% {
+ clip-path: inset(45% 45%);
+ }
+
+ 25% {
+ clip-path: inset(40% 40%);
+ }
+
+ 50% {
+ clip-path: inset(45% 45%);
+ }
+
+ 75% {
+ clip-path: inset(40% 40%);
+ }
+
+ 100% {
+ clip-path: inset(45% 45%);
+ }
+ }
+
+ .green {
+ background-color: green;
+ width: 200px;
+ height: 200px;
+ animation: clippath 10000000s -1286796s
+ /* roughly where the derivative of the cubic-bezier is zero */
+ ;
+ animation-timing-function: cubic-bezier(0, 9, 1, 9);
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="green"></div>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter-ref.html
new file mode 100644
index 0000000000..5bb9a9c722
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ filter: blur(5px);
+ clip-path: circle(75% at 75% 75%);
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter.html
new file mode 100644
index 0000000000..0ba7a0021d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-filter.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-filter-ref.html">
+<meta name="fuzzy" content="maxDifference=0-10; totalPixels=0-151">
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ filter: blur(5px);
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -500000s;
+}
+@keyframes clippath {
+ 0% { clip-path: circle(50% at 50% 50%); }
+ 100% { clip-path: circle(100% at 100% 100%); }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-ref.html
new file mode 100644
index 0000000000..2a21cc445c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<style>
+ .container {
+ position: fixed;
+ top: 100px;
+ left: 100px;
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(200% at 35% 35%);
+ }
+
+ .big {
+ position: absolute;
+ top: 100px;
+ width: 500px;
+ height: 500px;
+ background-color: blue;
+ }
+</style>
+
+<body>
+ <div class="container">
+ <div class="big"></div>
+ </div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error-ref.html
new file mode 100644
index 0000000000..a069e4d3ae
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<style>
+ .container {
+ position: fixed;
+ width: 70px;
+ height: 126px;
+ background-color: green;
+ clip-path: inset(5% 5%)
+ }
+
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error.html
new file mode 100644
index 0000000000..12d984b32a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position-rounding-error.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-fixed-position-rounding-error-ref.html">
+<!--
+ Test that clip paths on elements with position: fixed draw correctly,
+ even in scenarios that involve partial pixels
+
+ Currently uses fuzzy diff because of crbug.com/1249071
+-->
+<style>
+ .container {
+ background-color: green;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -500000s;
+ position: fixed;
+ width: 70px;
+ height: 126px;
+ }
+
+ @keyframes clippath {
+ 0% {
+ clip-path: inset(0% 0%);
+ }
+
+ 100% {
+ clip-path: inset(10% 10%);
+ }
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position.html
new file mode 100644
index 0000000000..a9f278d883
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fixed-position.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta name=fuzzy content="0-10;0-150">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-fixed-position-ref.html">
+<!--
+ Test that clip paths on elements with position: fixed draw correctly,
+ including clipping children that are out of bounds.
+-->
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ position: fixed;
+ top: 100px;
+ left: 100px;
+ background-color: green;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -500000s;
+ }
+
+ .big {
+ position: absolute;
+ top: 100px;
+ width: 500px;
+ height: 500px;
+ background-color: blue;
+ }
+
+ @keyframes clippath {
+ 0% {
+ clip-path: circle(50% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(350% at 20% 20%);
+ }
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="container">
+ <div class="big"></div>
+ </div>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented-ref.html
new file mode 100644
index 0000000000..8883679aca
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<div style="columns: 2; width: 200px; height: 100px;">
+ <div style="background-color: blue; height: 100px;clip-path: circle(25% at 50% 50%);"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented.html
new file mode 100644
index 0000000000..470a2788cc
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-fragmented.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-fragmented-ref.html">
+<style>
+ @keyframes clippath {
+ 0% {
+ clip-path: circle(5% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(45% at 50% 50%);
+ }
+ }
+
+ .outer {
+ columns: 2;
+ width: 200px;
+ height: 100px;
+ }
+
+ .inner {
+ background-color: blue;
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -500000s;
+ height: 100px;
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="outer">
+ <div class="inner">
+ </div>
+ </div>
+
+ <script>
+ takeScreenshot();
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1-ref.html
new file mode 100644
index 0000000000..cbfebddcdc
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(50% at 50% 50%);
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1.html
new file mode 100644
index 0000000000..88c6862aa9
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes1.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-incompatible-shapes1-ref.html">
+<meta name=fuzzy content="0-255;0-2">
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ /* Use a long animation that start at 30% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -300000s;
+}
+@keyframes clippath {
+ 0% { clip-path: circle(50% at 50% 50%); }
+ 100% { clip-path: ellipse(10% 20% at 50% 50%); }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+// This test ensures that when selected keyframe shapes are incompatible
+// and progress is less than 0.5, "from" keyframe is selected as a result.
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2-ref.html
new file mode 100644
index 0000000000..6cd7e76774
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 300px;
+ height: 300px;
+ background-color: green;
+ clip-path: path('M 100 100 L 200 0 L 200 200 L 0 120 z');
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2.html
new file mode 100644
index 0000000000..f2aa4964ad
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-incompatible-shapes2.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-incompatible-shapes2-ref.html">
+<meta name=fuzzy content="0-255;0-300">
+<style>
+.container {
+ width: 300px;
+ height: 300px;
+ background-color: green;
+ /* Use a long animation that start at 60% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -600000s;
+}
+@keyframes clippath {
+ 0% { clip-path: circle(50% at 50% 50%); }
+ 100% { clip-path: path('M 100 100 L 200 0 L 200 200 L 0 120 z'); }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+// This test ensures that when selected keyframe shapes are incompatible
+// and progress >= 0.5, "to" keyframe is selected as a result.
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent-ref.html
new file mode 100644
index 0000000000..200edcd038
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+ .container {
+
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(15% at 50% 50%);
+ }
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent.html
new file mode 100644
index 0000000000..4d4fee1b5b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-missing-0-percent.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-missing-0-percent-ref.html">
+<style>
+ .container {
+ /*TODO(crbug.com/1349062): Support animation keyframes without 0% or 100%.*/
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ clip-path: circle(5% at 50% 50%);
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -400000s;
+ }
+
+ @keyframes clippath {
+ 80% {
+ clip-path: circle(25% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(50% at 50% 50%);
+ }
+ }
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function-ref.html
new file mode 100644
index 0000000000..d351f80a26
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function-ref.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(50% at 50% 50%);
+ }
+
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function.html
new file mode 100644
index 0000000000..9e4eb01943
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-non-keyframe-timing-function.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta name=fuzzy content="0-5;0-5">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-non-keyframe-timing-function-ref.html">
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ document.querySelector('.container').animate([
+ // 1st keyframe must have a non-linear easing function or the animation
+ // will extrapolate based on the animation-wide timing function
+ { clipPath: 'circle(20% at 20% 20%)', easing: 'ease' },
+ { clipPath: 'circle(50% at 50% 50%)' }
+ ], {
+ easing: 'cubic-bezier(0, 2, 1, 2)',
+ duration: 1000000,
+ delay: -500000
+ });
+ document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none-ref.html
new file mode 100644
index 0000000000..f47e9f31b0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none-ref.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<style>
+ .target {
+ background-color: blue;
+ width: 100px;
+ height: 100px;
+ }
+
+ .outofbounds {
+ position: absolute;
+ top: 200px;
+ left: 200px;
+ height: 10px;
+ width: 10px;
+ background-color: blue
+ }
+</style>
+<div class="target">
+ <div class="outofbounds"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none.html
new file mode 100644
index 0000000000..73b8a47335
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-none.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-none-ref.html">
+<!--
+ This test verifies that
+ 1) clip-path: none in an animation does not cause a crash
+ 2) that clip-path: none displays correctly for an animation
+-->
+<style>
+ @keyframes clippath {
+ 0% {
+ clip-path: inset(25% 25%);
+ }
+
+ 100% {
+ clip-path: none;
+ }
+ }
+
+ .target {
+ animation: clippath 100000s infinite -50000s;
+ background-color: blue;
+ width: 100px;
+ height: 100px;
+ }
+
+ /*
+ * Ensure that clip-path: none is truly none, and not a rectangle that
+ * encompasses area of the parent
+ */
+ .outofbounds {
+ position: absolute;
+ top: 200px;
+ left: 200px;
+ height: 10px;
+ width: 10px;
+ background-color: blue
+ }
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="target">
+ <div class="outofbounds"></div>
+ </div>
+ <script>
+ document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow-ref.html
new file mode 100644
index 0000000000..154a56d5f0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 200px;
+ height: 200px;
+ background-color: green;
+ border: 20px solid black;
+ clip-path: circle(120px at 120px 120px);
+}
+</style>
+<body>
+<div class="container"><div class="container"></div></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow.html
new file mode 100644
index 0000000000..09a44fb3aa
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-overflow.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-overflow-ref.html">
+<meta name=fuzzy content="0-255;0-800">
+<style>
+.container {
+ width: 200px;
+ height: 200px;
+ background-color: green;
+ border: 20px solid black;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -500000s;
+}
+@keyframes clippath {
+ 0% { clip-path: circle(130px at 130px 130px); }
+ 100% { clip-path: circle(110px at 110px 110px); }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"><div class="container"></div></div>
+
+<script>
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-ref.html
new file mode 100644
index 0000000000..b548c5d590
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(35% at 35% 35%);
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-ref.html
new file mode 100644
index 0000000000..6cc3b4d58b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-ref.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<style>
+ .clipped {
+ background-color: green;
+ stroke: black;
+ stroke-width: 3;
+ fill: red;
+ clip-path: circle(35% at 50% 50%);
+ }
+
+ .svg {
+ width: 100px;
+ height: 100px;
+ }
+
+</style>
+
+<body>
+ <svg class="svg">
+ <circle class="clipped" cx="50" cy="50" r="40" />
+ </svg>
+
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom-ref.html
new file mode 100644
index 0000000000..8d620ceb69
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+<style>
+ .clipped {
+ background-color: green;
+ stroke: black;
+ stroke-width: 3;
+ fill: red;
+ clip-path: circle(35% at 50% 50%);
+ }
+
+ .svg {
+ width: 100px;
+ height: 100px;
+ zoom: 1.25;
+ }
+
+</style>
+
+<body>
+ <svg class="svg">
+ <circle class="clipped" cx="40" cy="40" r="40" />
+ </svg>
+
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom.html
new file mode 100644
index 0000000000..c79c098c62
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg-zoom.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-svg-zoom-ref.html">
+<style>
+ .clipped {
+ background-color: green;
+ stroke: black;
+ stroke-width: 3;
+ fill: red;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -500000s;
+ }
+
+ .svg {
+ width: 100px;
+ height: 100px;
+ zoom: 1.25;
+ }
+
+ @keyframes clippath {
+ 0% {
+ clip-path: circle(50% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(20% at 50% 50%);
+ }
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <svg class="svg">
+ <circle class="clipped" cx="40" cy="40" r="40" />
+ </svg>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg.html
new file mode 100644
index 0000000000..676fe5ee57
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-svg.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-svg-ref.html">
+<style>
+ .clipped {
+ background-color: green;
+ stroke: black;
+ stroke-width: 3;
+ fill: red;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0, 1, 1, 0) -500000s;
+ }
+
+ .svg {
+ width: 100px;
+ height: 100px;
+ }
+
+ @keyframes clippath {
+ 0% {
+ clip-path: circle(50% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(20% at 50% 50%);
+ }
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <svg class="svg">
+ <circle class="clipped" cx="50" cy="50" r="40" />
+ </svg>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot());
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1-ref.html
new file mode 100644
index 0000000000..965d259d26
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: ellipse(15% 25% at 60% 60%);
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1.html
new file mode 100644
index 0000000000..61e24e6208
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes1.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-three-keyframes1-ref.html">
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ /* Use a long animation that start at 5% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -50000s;
+}
+@keyframes clippath {
+ 0% { clip-path: ellipse(10% 20% at 50% 50%) }
+ 10% {
+ clip-path: ellipse(20% 30% at 70% 70%);
+ animation-timing-function: cubic-bezier(0,1,1,0);
+ }
+ 100% {
+ clip-path: ellipse(10% 20% at 50% 50%);
+ animation-timing-function: cubic-bezier(0,1,1,0);
+ }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+// This test ensures that we select the correct start and end keyframes for
+// interpolation. In this test, the start delay of the animation makes it
+// jump to 5% right away. So for this test, we would choose the keyframes at
+// 0% and 10% for interpolation.
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2-ref.html
new file mode 100644
index 0000000000..afc8c85561
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 300px;
+ height: 300px;
+ background-color: green;
+ clip-path: path('M 150 150 L 250 0 L 250 250 L 0 160 z');
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2.html
new file mode 100644
index 0000000000..b70c136c32
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-three-keyframes2.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-three-keyframes2-ref.html">
+<meta name=fuzzy content="0-255;0-1000">
+<style>
+.container {
+ width: 300px;
+ height: 300px;
+ background-color: green;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -500000s;
+}
+@keyframes clippath {
+ 0% {
+ clip-path: path('M 300 300 L 500 0 L 500 500 L 0 300 z');
+ }
+ 10% {
+ clip-path: path('M 100 100 L 200 0 L 200 200 L 0 120 z');
+ animation-timing-function: cubic-bezier(0,1,1,0);
+ }
+ 100% {
+ clip-path: path('M 200 200 L 300 0 L 300 300 L 0 200 z');
+ animation-timing-function: cubic-bezier(0,1,1,0);
+ }
+}
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+// The start delay of the animation makes it jump 50% of the animation, which
+// means we would select the keyframes at 10% and 100% for animation. The
+// progress would be (0.5-0.1) / (1-0.1) = 0.44. So a timing function input of
+// 0.44 results in an output of 0.5.
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom-ref.html
new file mode 100644
index 0000000000..99126195a1
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<style>
+ .container {
+ width: 80px;
+ height: 80px;
+ zoom: 1.25;
+ background-color: green;
+ clip-path: circle(35% at 35% 35%);
+ }
+
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom.html
new file mode 100644
index 0000000000..5573318a51
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation-zoom.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-zoom-ref.html">
+<style>
+ .container {
+ width: 80px;
+ height: 80px;
+ background-color: green;
+ zoom: 1.25;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 10000000s cubic-bezier(0, 1, 1, 0) -5000000s;
+ }
+
+ @keyframes clippath {
+ 0% {
+ clip-path: circle(50% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(20% at 20% 20%);
+ }
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ document.getAnimations()[0].ready.then(takeScreenshot);
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation.html
new file mode 100644
index 0000000000..cea2ebc7c0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-animation.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-ref.html">
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ animation: clippath 1000000s cubic-bezier(0,1,1,0) -500000s;
+}
+@keyframes clippath {
+ 0% { clip-path: circle(50% at 50% 50%); }
+ 100% { clip-path: circle(20% at 20% 20%); }
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container"></div>
+
+<script>
+document.getAnimations()[0].ready.then(() => {
+ takeScreenshot();
+});
+</script>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001-ref.html
new file mode 100644
index 0000000000..4e26ac61f6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reference for clip-path's path nonzero interpolation</title>
+ <style type="text/css">
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url("#clip");
+ }
+ </style>
+</head>
+<body>
+ <div id="rect"></div>
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="clip">
+ <path clip-rule="nonzero" d="M35,35 H90 V90 H35Z M25,25 H70 V70 H25Z"/>
+ </clipPath>
+ </defs>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001.html
new file mode 100644
index 0000000000..0c988e090e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-001.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+ <title>CSS Masking: Test clip-path nonzero path interpolation</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+ <link rel="match" href="clip-path-path-interpolation-001-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'path()' for clipping. Test the interpolation of nonzero
+ path function.">
+ <style>
+ @keyframes anim {
+ from {
+ clip-path: path(nonzero, 'M20,20h60 v60 h-60z M30,30 h40 v40 h-40z');
+ }
+ to {
+ clip-path: path(nonzero, 'M50,50h50 v50 h-50z M20,20 h50 v50 h-50z');
+ }
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: anim 10s -5s paused linear;
+ }
+ </style>
+</head>
+<body>
+ <div id="rect"></div>
+</body>
+<script>
+ requestAnimationFrame(() => {
+ document.documentElement.classList.remove('reftest-wait');
+ });
+</script>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002-ref.html
new file mode 100644
index 0000000000..567764a301
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002-ref.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reference for clip-path's path evenodd interpolation</title>
+ <style type="text/css">
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url("#clip");
+ }
+ </style>
+</head>
+<body>
+ <div id="rect"></div>
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="clip">
+ <path clip-rule="evenodd" d="M35,35 H90 V90 H35Z M25,25 H70 V70 H25Z"/>
+ </clipPath>
+ </defs>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002.html
new file mode 100644
index 0000000000..4c1c485f7f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-002.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+ <title>CSS Masking: Test clip-path evenodd path interpolation</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+ <link rel="match" href="clip-path-path-interpolation-002-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'path()' for clipping. Test the interpolation of evenodd
+ path function.">
+ <style>
+ @keyframes anim {
+ from {
+ clip-path: path(evenodd, 'M20,20h60 v60 h-60z M30,30 h40 v40 h-40z');
+ }
+ to {
+ clip-path: path(evenodd, 'M50,50h50 v50 h-50z M20,20 h50 v50 h-50z');
+ }
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: anim 10s -5s paused linear;
+ }
+ </style>
+</head>
+<body>
+ <div id="rect" class="path-evenodd-animation"></div>
+</body>
+<script>
+ requestAnimationFrame(() => {
+ document.documentElement.classList.remove('reftest-wait');
+ });
+</script>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom-ref.html
new file mode 100644
index 0000000000..7e0d2a5426
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path nonzero path interpolation with zoom</title>
+<style type="text/css">
+ #rect {
+ width: 300px;
+ height: 300px;
+ background-color: green;
+ clip-path: path('M105,105 H270 V270 H105Z M75,75 H210 V210 H75Z');
+ }
+
+</style>
+<div id="rect"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom.html
new file mode 100644
index 0000000000..50dc5e6f4e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-path-interpolation-with-zoom.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html>
+ <title>CSS Masking: Test clip-path nonzero path interpolation with zoom</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+ <link rel="match" href="clip-path-path-interpolation-with-zoom-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'path()' for clipping. Test the interpolation of nonzero
+ path function.">
+ <style>
+ @keyframes anim {
+ from {
+ clip-path: path(nonzero, 'M20,20h60 v60 h-60z M30,30 h40 v40 h-40z');
+ }
+ to {
+ clip-path: path(nonzero, 'M50,50h50 v50 h-50z M20,20 h50 v50 h-50z');
+ }
+ }
+ #rect {
+ width: 100px;
+ zoom: 3;
+ height: 100px;
+ background-color: green;
+ animation: anim 10s -5s paused linear;
+ }
+ </style>
+ <div id="rect"></div>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-001.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-001.html
new file mode 100644
index 0000000000..dae7f24d37
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-001.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+ <title>CSS Masking: Test clip-path nonzero path interpolation</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="clip-path-path-interpolation-001-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test the interpolation of nonzero
+ path function.">
+ <style>
+ @keyframes anim {
+ from {
+ clip-path: shape(nonzero from 20px 20px,
+ hline by 60px, vline by 60px, hline by -60%, close,
+ move to 30% 30px, hline by 40px, vline by 40px, hline by -40px, close);
+ }
+ to {
+ clip-path: shape(nonzero from 50px 50px,
+ hline by 50px, vline by 50px, hline by -50%, close,
+ move to 20px 20%, hline by 50px, vline by 50px, hline by -50px, close);
+ }
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: anim 10s -5s paused linear;
+ }
+ </style>
+</head>
+<body>
+ <div id="rect"></div>
+</body>
+<script>
+ requestAnimationFrame(() => {
+ document.documentElement.classList.remove('reftest-wait');
+ });
+</script>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-002.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-002.html
new file mode 100644
index 0000000000..6af23c37d6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-shape-interpolation-002.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+ <title>CSS Masking: Test clip-path evenodd path interpolation</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="clip-path-path-interpolation-002-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test the interpolation of evenodd
+ path function.">
+ <style>
+ @keyframes anim {
+ from {
+ clip-path: shape(evenodd from 20px 20px,
+ hline by 60px, vline by 60px, hline by -60%, close,
+ move to 30% 30px, hline by 40px, vline by 40px, hline by -40px, close);
+ }
+ to {
+ clip-path: shape(evenodd from 50px 50px,
+ hline by 50px, vline by 50px, hline by -50%, close,
+ move to 20px 20%, hline by 50px, vline by 50px, hline by -50px, close);
+ }
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: anim 10s -5s paused linear;
+ }
+ </style>
+</head>
+<body>
+ <div id="rect"></div>
+</body>
+<script>
+ requestAnimationFrame(() => {
+ document.documentElement.classList.remove('reftest-wait');
+ });
+</script>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-custom-timing-function.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-custom-timing-function.html
new file mode 100644
index 0000000000..47b0cd6e75
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-custom-timing-function.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-animation-custom-timing-function-ref.html">
+<style>
+ .green {
+ background-color: green;
+ width: 200px;
+ height: 200px;
+
+ clip-path: inset(45%);
+ transition-property: clip-path;
+ transition-duration: 10000000s;
+ transition-timing-function: cubic-bezier(0, 9, 1, 9);
+ transition-delay: -5220715s;
+ }
+
+</style>
+<script src="/common/reftest-wait.js"></script>
+
+<body>
+ <div class="green" id="target"></div>
+
+ <script>
+ function update() {
+ document.getElementById('target').style.clipPath = "inset(40%)";
+ requestAnimationFrame(() => {
+ takeScreenshot();
+ });
+ }
+ requestAnimationFrame(function () {
+ requestAnimationFrame(update);
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-ref.html
new file mode 100644
index 0000000000..af164c30f0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(40% at 40% 40%);
+}
+</style>
+<body>
+<div class="container"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition.html
new file mode 100644
index 0000000000..16f4de3a1b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/clip-path-transition.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="clip-path-transition-ref.html">
+<style>
+.container {
+ width: 100px;
+ height: 100px;
+ clip-path: circle(50% at 50% 50%);
+ background-color: green;
+ transition-property: clip-path;
+ /* Use a long animation that start at 50% progress where the slope of the
+ selected timing function is zero. By setting up the animation in this way,
+ we accommodate lengthy delays in running the test without a potential drift
+ in the animated property value. This is important for avoiding flakes,
+ especially on debug builds. The screenshots are taken as soon as the
+ animation is ready, thus the long animation duration has no bearing on
+ the actual duration of the test. */
+ transition-duration: 1000000s;
+ transition-timing-function: cubic-bezier(0,1,1,0);
+ transition-delay: -500000s;
+}
+</style>
+<script src="/common/reftest-wait.js"></script>
+<body>
+<div class="container" id="target"></div>
+
+<script>
+function update() {
+ document.getElementById('target').style.clipPath = "circle(30% at 30% 30%)";
+ requestAnimationFrame(() => {
+ takeScreenshot();
+ });
+}
+requestAnimationFrame(function() {
+ requestAnimationFrame(update);
+});
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1-ref.html
new file mode 100644
index 0000000000..0feacb50ba
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+ .container {
+
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: inset(10px 10px);
+ }
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1.html
new file mode 100644
index 0000000000..f647c1af59
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length1.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="two-clip-path-animation-diff-length1-ref.html">
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: clippath2 10s step-end, clippath1 0.001s;
+ }
+
+ @keyframes clippath1 {
+ 0% {
+ clip-path: circle(10% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(50% at 50% 50%);
+ }
+ }
+
+ @keyframes clippath2 {
+ 0% {
+ clip-path: inset(10px 10px);
+ }
+
+ 100% {
+ clip-path: inset(11px 11px);
+ }
+ }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="../../../../web-animations/testcommon.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ // This test ensures that if we have two different-length animations, when
+ // the one with higher compositing order finishes, the other one would still
+ // run normally.
+ const animations = document.getAnimations();
+ animations[1].finished.then(() => {
+ takeScreenshot();
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2-ref.html
new file mode 100644
index 0000000000..0feacb50ba
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+ .container {
+
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: inset(10px 10px);
+ }
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2.html
new file mode 100644
index 0000000000..bc3460111f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length2.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="two-clip-path-animation-diff-length2-ref.html">
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: clippath2 100s step-end, clippath1 20s 30s;
+ }
+
+ @keyframes clippath1 {
+ 0% {
+ clip-path: circle(10% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(50% at 50% 50%);
+ }
+ }
+
+ @keyframes clippath2 {
+ 0% {
+ clip-path: inset(10px 10px);
+ }
+
+ 100% {
+ clip-path: inset(11px 11px);
+ }
+ }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="../../../../web-animations/testcommon.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ // This test ensures that when there are two animations where one of them has
+ // animation delays, we show the right clip when the delayed animation is not
+ // started yet.
+ const animations = document.getAnimations();
+ Promise.all([animations[0].ready, animations[1].ready]).then(() => {
+ takeScreenshot();
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3-ref.html
new file mode 100644
index 0000000000..853f47f9ba
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<style>
+ .container {
+
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: circle(50% at 50% 50%);
+ }
+</style>
+
+<body>
+ <div class="container"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3.html b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3.html
new file mode 100644
index 0000000000..5a66568132
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/animations/two-clip-path-animation-diff-length3.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
+<link rel="match" href="two-clip-path-animation-diff-length3-ref.html">
+<style>
+ .container {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ animation: clippath2 10000s step-end, clippath1 20s 0.001s;
+ }
+
+ /* Use un-interpolatable keyframes to force discrete transition */
+ @keyframes clippath1 {
+ 0% {
+ clip-path: circle(50% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: inset(11px 11px);
+ }
+ }
+
+ @keyframes clippath2 {
+ 0% {
+ clip-path: circle(10% at 50% 50%);
+ }
+
+ 100% {
+ clip-path: circle(25% at 50% 50%);
+ }
+ }
+</style>
+<script src="/common/reftest-wait.js"></script>
+<script src="../../../../web-animations/testcommon.js"></script>
+
+<body>
+ <div class="container"></div>
+
+ <script>
+ // This test ensures that when there are two animations where one of them has
+ // animation delays, we show the right clip when the delayed animation is
+ // started.
+ const animations = document.getAnimations();
+ Promise.all([animations[0].ready, animations[1].ready]).then(() => {
+ waitForAnimationFrames(3).then(() => {
+ takeScreenshot();
+ });
+ });
+ </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset-ref.html
new file mode 100644
index 0000000000..c2613ac0a6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset-ref.html
@@ -0,0 +1,3 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 30px; background: green"></div>
+<div style="width: 30px; height: 70px; background: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset.html
new file mode 100644
index 0000000000..806904d687
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-blending-offset.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path with mix-blend-mode with offset</title>
+<link rel="author" title="Xianzhu Wang" href="mailto:wangxianzhu@chromium.org">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="match" href="clip-path-blending-offset-ref.html">
+<style>
+div {
+ width: 100px;
+ height: 100px;
+}
+#clip-path {
+ overflow: hidden;
+ background: green;
+ clip-path: polygon(0 0, 100px 0, 100px 30px, 30px 30px, 30px 100px, 0 100px);
+}
+#blend {
+ position: absolute;
+ mix-blend-mode: multiply;
+ left: 40px;
+ top: 50px;
+ background: red;
+}
+</style>
+<div id="clip-path">
+ <div id="blend"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1a.html
new file mode 100644
index 0000000000..b7473fd66c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1a.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path border-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-96; totalPixels=0-356">
+ <meta name="assert" content="Test checks whether clip-path border-box works correctly or not. This test is for clip-path applied to an HTML element.">
+ <style>
+ div {
+ position: absolute;
+ left: 50px;
+ top: 50px;
+ background-color: blue;
+ width: 30px;
+ height: 30px;
+ padding: 10px;
+ border: solid blue 25px;
+ clip-path: circle(farthest-side) border-box;
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html
new file mode 100644
index 0000000000..c253c3c9db
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1b.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path border-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path border-box works correctly or not. This test is for clip-path applied to an SVG element.">
+ <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-394">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 15px; top: 10px;">
+ <rect x="35" y="40" width="100" height="100" fill="blue"
+ clip-path="circle(50%) border-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1c.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1c.html
new file mode 100644
index 0000000000..f050159385
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-borderBox-1c.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path border-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path border-box works correctly or not. This test is for clip-path applied to an SVG SVG element.">
+ <style>
+ svg {
+ position: absolute;
+ left: 50px;
+ top: 50px;
+ background-color: blue;
+ width: 30px;
+ height: 30px;
+ padding: 10px;
+ border: solid blue 25px;
+ clip-path: circle(farthest-side) border-box;
+ }
+ </style>
+ </head>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-001.html
new file mode 100644
index 0000000000..e40cdb103a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-001.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with absolute values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="author" title="Denise White" href="mailto:denisegwhite@outlook.com">
+ <link rel="author" title="Laury Kenton" href="mailto:webshiva@mac.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. Test absolute values for arguments. On pass you
+ should see a green circle and no red.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle();"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-002.html
new file mode 100644
index 0000000000..deb199a5b6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-002.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with percentage values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. Test percentage values for arguments. If no
+ reference box was specified, percentage is relative to border-box. On pass
+ there should be a green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle(50% at 50% 50%);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-003.html
new file mode 100644
index 0000000000..24b3f31f61
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-003.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with percentage radius</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. Test percentage value as argument for radius and no
+ position arguments. The circle should be in the center of the element. On
+ pass there should be a green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle(50%);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-004.html
new file mode 100644
index 0000000000..ddbccf0336
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-004.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with percentage position</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. Test percentage value as argument for position and
+ no radius argument. The circle must behave like it has a radius of
+ 'closest-side'. On pass there should be a green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle(at 50%);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-005.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-005.html
new file mode 100644
index 0000000000..3a25ce5fff
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-005.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with closest-side</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. The circle has a radius of 'closest-side'. This test
+ has a squred div-box. Therefore, 'closest-side', 50% and 'farthest-side'
+ show the same behavior. On pass there should be a green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle(closest-side);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-006.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-006.html
new file mode 100644
index 0000000000..8434edd216
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-006.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle function with farthest-side</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. The circle has a radius of 'farthest-side'. This
+ test has a squred div-box. Therefore, 'closest-side', 50% and
+ 'farthest-side' show the same behavior. On pass there should be a green
+ circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: circle(farthest-side);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-007.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-007.html
new file mode 100644
index 0000000000..60c5cd52e3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-007.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle with closest-side on rectangular div 1</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-2-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. The clipped div box is twice as wide as it is
+ height. With 'closest-side', there should be a full green circle.">
+ <style type="text/css">
+ body, div {
+ padding: 0;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 400px; height: 200px; background-color: green; clip-path: circle(closest-side);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-008.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-008.html
new file mode 100644
index 0000000000..a931d3e319
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-circle-008.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and circle with closest-side on rectangular div 2</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="reference/clip-path-circle-3-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'circle' for clipping. The clipped div box is twice as high as it is
+ wide. With 'closest-side', there should be a full green circle.">
+ <style type="text/css">
+ body, div {
+ padding: 0;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 400px; background-color: green; clip-path: circle(closest-side);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-001.html
new file mode 100644
index 0000000000..de13607ad8
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-001.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path property in column</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="issue" href="https://bugs.chromium.org/p/chromium/issues/detail?id=626097">
+<link rel="match" href="reference/clip-path-columns-shape-001-ref.html">
+<meta name="assert" content="This test ensures that clip-path property works correctly in column layout.">
+<style>
+body { margin: 0; }
+.clipped {
+ background-color: green;
+ border: 5px solid red;
+ -webkit-clip-path: inset(5px);
+ clip-path: inset(5px);
+}
+</style>
+<div style="columns: 2; column-gap: 0; width: 200px; height: 100px">
+ <div style="height: 100px"></div>
+ <div style="height: 90px" class="clipped"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-002.html
new file mode 100644
index 0000000000..6bd11a5e49
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-columns-shape-002.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path property with svg clipPath element in column</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="issue" href="https://bugs.chromium.org/p/chromium/issues/detail?id=626097">
+<link rel="match" href="reference/clip-path-columns-shape-002-ref.html">
+<meta name="assert" content="This test ensures that clip-path property works correctly in column layout when SVG <clipPath> elements with clipPathUnits='userSpaceOnUse' is referenced.">
+<style>
+body { margin: 0; }
+.clipped {
+ background-color: green;
+ border: 5px solid red;
+ -webkit-clip-path: url(#c);
+ clip-path: url(#c);
+}
+</style>
+<div style="columns: 2; column-gap: 0; width: 200px; height: 100px">
+ <div style="height: 100px"></div>
+ <div style="height: 90px" class="clipped"></div>
+</div>
+<svg>
+ <clipPath id="c" clipPathUnits="userSpaceOnUse">
+ <rect x="5" y="5" width="90" height="90"/>
+ </clipPath>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1a.html
new file mode 100644
index 0000000000..b10dcbe3ad
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1a.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path content-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path content-box works correctly or not. This test is for clip-path applied to an HTML element.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ <style>
+ div {
+ background-color: blue;
+ position: absolute;
+ left: 10px;
+ top: 10px;
+ width: 100px;
+ height: 100px;
+ padding: 40px;
+ clip-path: circle(farthest-side) content-box;
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1b.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1b.html
new file mode 100644
index 0000000000..8c2a651766
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1b.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path content-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path content-box works correctly or not. This test is for clip-path applied to an SVG element.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 0px; top: 0px;">
+ <rect x="50" y="50" width="100" height="100" fill="blue"
+ clip-path="circle(50%) content-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1c.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1c.html
new file mode 100644
index 0000000000..a04aaa21e5
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-contentBox-1c.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path content-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path content-box works correctly or not.">
+ </head>
+ <style>
+ svg {
+ position: absolute;
+ left: 10px;
+ top: 10px;
+ width: 100px;
+ height: 100px;
+ padding: 40px;
+ clip-path: circle(farthest-side) content-box;
+ }
+ </style>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html
new file mode 100644
index 0000000000..8753a25f1e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-descendant-text-mutated-001.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>CSS Masking: Test ancestors update as text descendants change</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="issue" href="https://bugs.chromium.org/p/chromium/issues/detail?id=901851">
+<link rel="match" href="reference/clip-path-descendant-text-mutated-001-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<meta name="assert" content="This test ensures that ancestors are updated properly when a text descendant of clip path property changes.">
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/rendering-utils.js"></script>
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ border-right: 100px solid red;
+ clip-path: url(#clip);
+}
+</style>
+<div id="target"></div>
+<svg>
+ <clipPath id="clip">
+ <text id="text" y="80" font-family="Ahem" font-size="100">XX</text>
+ </clipPath>
+</svg>
+<script>
+ waitForAtLeastOneFrame().then(function() {
+ text.firstChild.data = 'X';
+ takeScreenshot();
+ });
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element-will-change.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element-will-change.html
new file mode 100644
index 0000000000..977eaca140
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element-will-change.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<style>
+html {
+ background: red;
+ /* an "L" shape */
+ clip-path: polygon(50px 50px, 100px 50px, 100px 100px, 150px 100px, 150px 150px, 50px 150px);
+ will-change: transform;
+}
+div {
+ width: 500px;
+ height: 500px;
+ background: green;
+}
+</style>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#rootgroup">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="reference/clip-path-document-element-ref.html">
+<meta name="assert" content="Clip-path on the document element applies to the root background.
+ The test passes if there is a green 'L' shape without red.">
+<div></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element.html
new file mode 100644
index 0000000000..56f2d5c8eb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-document-element.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<style>
+html {
+ background: red;
+ /* an "L" shape */
+ clip-path: polygon(50px 50px, 100px 50px, 100px 100px, 150px 100px, 150px 150px, 50px 150px);
+}
+div {
+ width: 500px;
+ height: 500px;
+ background: green;
+}
+</style>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#rootgroup">
+<link rel="help" href="https://drafts.fxtf.org/compositing/#pagebackdrop">
+<link rel="match" href="reference/clip-path-document-element-ref.html">
+<meta name="assert" content="Clip-path on the document element applies to the root background.
+ The test passes if there is a green 'L' shape without red.">
+<div></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-001.html
new file mode 100644
index 0000000000..1381f53cb0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-001.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and external clipPath reference with userSpaceOnUse - 1</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#ClipPathElement">
+ <link rel="match" href="reference/clip-path-rectangle-ref.html">
+ <meta name="assert" content="The clip-path property takes an external reference to a clipPath element for clipping.
+ On pass you should see a green box.">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: url(#clip);"></div>
+
+ <svg>
+ <clipPath id="clip">
+ <rect x="50" y="50" width="150px" height="100" />
+ </clipPath>
+ </svg>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-002.html
new file mode 100644
index 0000000000..6d6d77ceca
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-002.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and external clipPath reference with userSpaceOnUse - 2</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#ClipPathElement">
+ <link rel="match" href="reference/clip-path-rectangle-ref.html">
+ <meta name="assert" content="The clip-path property takes an reference to a clipPath element for clipping.
+ On pass you should see a green with a blue border.">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: url(#clip);"></div>
+
+ <svg>
+ <clipPath id="clip">
+ <rect x="50" y="50" width="150px" height="100" />
+ </clipPath>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-003.html
new file mode 100644
index 0000000000..1eff3b4fce
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-003.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and external clipPath reference with userSpaceOnUse with percentage - 1</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#ClipPathElement">
+ <link rel="match" href="reference/clip-path-ref-right-green-ref.html">
+ <meta name="assert" content="The clip-path property takes a reference to a clipPath element for clipping. Percentage values
+ are relative to the viewport for userSpaceOnUse on clipPathUnits.
+ On pass the left half of the site is white and the right half of the site is green.">
+
+ <style>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <div style="width: 100%; height: 100%; background-color: green; clip-path: url(#clip); position: absolute;"></div>
+ <p style="position: absolute;">The test passes if the left half of the site is white and the right half of the site is green.</p>
+
+ <svg>
+ <clipPath id="clip">
+ <rect x="50%" y="0" width="50%" height="100%" />
+ </clipPath>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-004.html
new file mode 100644
index 0000000000..af65df668f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-element-userSpaceOnUse-004.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and external clipPath reference with userSpaceOnUse with percentage - 2</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#ClipPathElement">
+ <link rel="match" href="reference/clip-path-ref-bottom-green-ref.html">
+ <meta name="assert" content="The clip-path property takes a reference to a clipPath element for clipping. Percentage values
+ are relative to the viewport for userSpaceOnUse on clipPathUnits.
+ On pass the top half of the site is white and the bottom half of the site is green.">
+
+ <style>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <div style="width: 100%; height: 100%; background-color: green; clip-path: url(#clip); position: absolute;"></div>
+ <p style="position: absolute;">The test passes if the top half of the site is white and the bottom half of the site is green.</p>
+
+ <svg>
+ <clipPath id="clip">
+ <rect x="0" y="50%" width="100%" height="50%" />
+ </clipPath>
+ </svg>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-001.html
new file mode 100644
index 0000000000..f48b197137
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-001.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with absolute values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test absolute values for radii and position
+ arguments. On pass you should see a green ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: ellipse(75px 50px at 125px 100px);"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-002.html
new file mode 100644
index 0000000000..ecc5ca090f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-002.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with percentage values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test percentage values for radii and position
+ arguments. Percentage values are relative to a reference box. If no
+ reference box was specified, percentage values are relative to border-box.
+ On pass you should see a green ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: ellipse(30% 25% at 50% 50%);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-003.html
new file mode 100644
index 0000000000..eff287614b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-003.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with percentage values on square</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-circle-ref.html">
+ <meta name="fuzzy" content="0-38; 0-800">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test percentage values for radii and position
+ arguments. Percentage values are relative to a reference box. If no
+ reference box was specified, percentage values are relative to border-box.
+ On pass there should be a full green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: ellipse(50% 50% at 50% 50%);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-004.html
new file mode 100644
index 0000000000..3988840943
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-004.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with different absolute values on square</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test absolute values for arguments. On pass you
+ should see a green ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: ellipse(75px 50px at 125px 100px);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-005.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-005.html
new file mode 100644
index 0000000000..c7107d2617
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-005.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with different percentage values on square</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test percentage values for radii and position
+ arguments. Percentage values are relative to a reference box. If no
+ reference box was specified, percentage values are relative to border-box.
+ Different values for getting an ellipse from a square. On pass you should
+ see a green ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 200px; height: 200px; background-color: green; clip-path: ellipse(37.5% 25% at 62.5% 50%);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-006.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-006.html
new file mode 100644
index 0000000000..d0b4efafeb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-006.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with absolute values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test absolute values for radii and position
+ arguments. On pass you should see a green circle.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 150px; height: 100px; position: absolute; margin: 50px; background-color: green; clip-path: ellipse();"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-007.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-007.html
new file mode 100644
index 0000000000..2105b36df3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-007.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with no arguments</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. If no further arguments were specified, the radii
+ are 'closest-side' each. The position is initialised to the center of the
+ element. On pass there is a full green ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 150px; height: 100px; position: absolute; margin: 50px; background-color: green; clip-path: ellipse(farthest-side closest-side);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-008.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-008.html
new file mode 100644
index 0000000000..4e4ac51842
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-ellipse-008.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and ellipse function with 50% 50%</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-ellipse-ref.html">
+ <meta name="fuzzy" content="0-38; 0-400">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'ellipse' for clipping. Test percentage values for radii and position
+ arguments. Percentage values are relative to a reference box. If no
+ reference box was specified, percentage values are relative to border-box.
+ Both radii are specified with percentage values. The position is
+ initialised to the center of the element. On pass there is a full green
+ ellipse.">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="width: 150px; height: 100px; position: absolute; margin: 50px; background-color: green; clip-path: ellipse(50% 50%);"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fillBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fillBox-1a.html
new file mode 100644
index 0000000000..d3733d4332
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fillBox-1a.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path fill-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path fill-box works correctly or not. This test is for clip-path applied to an SVG SVG element.">
+ <style>
+ svg {
+ position: absolute;
+ left: 40px;
+ top: 40px;
+ background-color: blue;
+ width: 30px;
+ height: 30px;
+ margin: 10px;
+ padding: 10px;
+ border: solid blue 25px;
+ clip-path: circle(farthest-side) fill-box;
+ }
+ </style>
+ </head>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue">
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order-ref.html
new file mode 100644
index 0000000000..5fdef1e300
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order-ref.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Clip-path should be applied after filtering</title>
+<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org">
+
+<div>
+ <p>Expected: A green box.<br>
+ There should be no red visible.<br>
+ There should be a crisp, clipped edge around the green box (no blurring).</p>
+</div>
+
+<style>
+ #testcase {
+ position: absolute;
+ width: 200px;
+ height: 200px;
+ background: green;
+ will-change: transform;
+ }
+</style>
+<div id="testcase"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order.html
new file mode 100644
index 0000000000..5806e75d53
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-order.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Clip-path should be applied after filtering</title>
+<link rel="author" title="Philip Rogers" href="mailto:pdr@chromium.org">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#placement">
+<link rel="match" href="clip-path-filter-order-ref.html">
+
+<div>
+ <p>Expected: A green box.<br>
+ There should be no red visible.<br>
+ There should be a crisp, clipped edge around the green box (no blurring).</p>
+</div>
+
+<style>
+ #testcase {
+ position: absolute;
+ width: 400px;
+ height: 400px;
+ background: green;
+ will-change: transform;
+ filter: drop-shadow(16px 16px 20px red);
+ clip-path: inset(0px 200px 200px 0px);
+ }
+</style>
+<div id="testcase"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-radius-clips.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-radius-clips.html
new file mode 100644
index 0000000000..f715f0de78
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-filter-radius-clips.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<link rel="help" href="https://www.w3.org/TR/css-masking-1/#clipping-paths">
+<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-paint">
+<link rel="match" href="reference/clip-path-filter-radius-clips-ref.html">
+<meta name="assert" content="For crbug.com/1099234, ensure correct clip hierarchy with clip-path, filter and border radius clips">
+<div style="width: 400px; height: 400px; border-radius: 10px; contain: paint">
+ <div style="width: 400px; height: 400px; border-radius: 10px; contain: paint">
+ <div style="width: 100px; height: 10px; will-change: transform; clip-path: circle(50%)"></div>
+ <div style="margin-left: 10px; filter: invert(100%); will-change: filter;
+ width: 100px; height: 100px; background: magenta"></div>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested-ref.html
new file mode 100644
index 0000000000..b860304f04
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested-ref.html
@@ -0,0 +1,17 @@
+<!doctype html>
+<title>CSS Test Reference</title>
+<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
+<style>
+ body, html {
+ margin: 0;
+ padding: 0;
+ background: green;
+ }
+
+ .purple-square {
+ background: purple;
+ width: 50px;
+ height: 50px;
+ }
+</style>
+<div class="purple-square"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested.html
new file mode 100644
index 0000000000..5090bc2aed
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-nested.html
@@ -0,0 +1,38 @@
+<!doctype html>
+<title>CSS Test: nested clip-path() inside the same reference frame with position: fixed</title>
+<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
+<link rel="author" href="https://mozilla.org" title="Mozilla">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1501111">
+<link rel="help" href="https://drafts.fxtf.org/css-masking/#the-clip-path">
+<link rel="match" href="clip-path-fixed-nested-ref.html">
+<style>
+ body, html {
+ margin: 0;
+ padding: 0;
+ }
+ .outer-clip {
+ height: 100vh;
+ clip-path: inset(0 0 0 0);
+ background: green;
+ }
+ .fixed {
+ position: fixed;
+ }
+ .inner-clip {
+ height: 50px;
+ width: 50px;
+ clip-path: inset(0 0 0 0);
+ }
+ .inner-clip-contents {
+ height: 100px;
+ width: 100px;
+ background: purple;
+ }
+</style>
+<div class="outer-clip">
+ <div class="fixed">
+ <div class="inner-clip">
+ <div class="inner-clip-contents"></div>
+ </div>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll-ref.html
new file mode 100644
index 0000000000..86aad95935
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll-ref.html
@@ -0,0 +1,6 @@
+<!doctype html>
+<div style="height: 100vh"></div>
+<div style="width: 200px; height: 200px; background: green"></div>
+<script>
+ window.scrollTo(0, 1000);
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll.html
new file mode 100644
index 0000000000..2b6e09b0e8
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-fixed-scroll.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>CSS Test: clip-path above position: fixed scrolled</title>
+<link rel="help" href="https://crbug.com/1267676">
+<link rel="help" href="https://drafts.fxtf.org/css-masking/#the-clip-path">
+<link rel="match" href="clip-path-fixed-scroll-ref.html">
+<script src="/common/rendering-utils.js"></script>
+<script src="/common/reftest-wait.js"></script>
+<div style="height: 100vh"></div>
+<div style="width: 200px; height: 200px; clip-path: inset(0 0 0 0)">
+ <div style="position: fixed; top: 0; left: 0; width: 2000px; height: 2000px; background: green"></div>
+</div>
+<script>
+waitForAtLeastOneFrame().then(() => {
+ scrollTo(0, 1000);
+ takeScreenshot();
+});
+</script>
+</html>
+
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-1-ref.html
new file mode 100644
index 0000000000..add81e8dfe
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-1-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path geometry box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 0px; top: 0px;">
+ <circle cx="100" cy="100" r="50" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2-ref.html
new file mode 100644
index 0000000000..b9ee9ab63b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2-ref.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path geometry box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 0px; top: 0px;">
+ <polygon points="100,50 150,100 150,150 50,150 50,100" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2.html
new file mode 100644
index 0000000000..d4c47349d2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-geometryBox-2.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path margin-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-2-ref.html">
+ <meta name="assert" content="Test checks whether clip-path margin-box works correctly or not.">
+ <meta name="fuzzy" content="maxDifference=0-60; totalPixels=0-394">
+ <style>
+ div {
+ position: absolute;
+ left: 0px;
+ top: 0px;
+ background-color: blue;
+ width: 100px;
+ height: 100px;
+ margin: 50px;
+ clip-path: polygon(0% 75%, 50% 25%, 100% 75%) margin-box;
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-001.html
new file mode 100644
index 0000000000..76018614ba
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-001.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>clip-path on inline, horizontal-tb writing-mode</title>
+<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path" title="5.1 Clipping Shape: the clip-path property">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<meta content="ahem" name="flags">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+ body {
+ overflow: hidden;
+ }
+ .container {
+ writing-mode: horizontal-tb;
+ padding: 70px 30px;
+ margin: -170px -230px;
+ font: 100px/1 Ahem;
+ line-height: 100px;
+ color: transparent;
+ }
+ .container > span {
+ clip-path: polygon(0% 0%, 50% 0%, 50% 100%, 0% 100%);
+ color: red;
+ }
+ .container > span > span {
+ color: green;
+ }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class="container">
+ <br>
+ XX<span><span>X</span>X<br>XXXXX</span>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-002.html
new file mode 100644
index 0000000000..ca8634b903
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-002.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>clip-path on inline, vertical-rl writing-mode</title>
+<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path" title="5.1 Clipping Shape: the clip-path property">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<meta content="ahem" name="flags">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+ body {
+ overflow: hidden;
+ }
+ .container {
+ writing-mode: vertical-rl;
+ padding: 70px 30px;
+ margin: -270px -130px;
+ font: 100px/1 Ahem;
+ line-height: 100px;
+ color: transparent;
+ }
+ .container > span {
+ clip-path: polygon(0% 0%, 100% 0%, 100% 50%, 0% 50%);
+ color: red;
+ }
+ .container > span > span {
+ color: green;
+ }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class="container">
+ <br>
+ XX<span><span>X</span>X<br>XXXXX</span>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-003.html
new file mode 100644
index 0000000000..471c54c1c6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inline-003.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<title>clip-path on inline, vertical-lr writing-mode</title>
+<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path" title="5.1 Clipping Shape: the clip-path property">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<meta content="ahem" name="flags">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+ body {
+ overflow: hidden;
+ }
+ .container {
+ writing-mode: vertical-lr;
+ padding: 70px 30px;
+ margin: -270px -130px;
+ font: 100px/1 Ahem;
+ line-height: 100px;
+ color: transparent;
+ }
+ .container > span {
+ clip-path: polygon(0% 0%, 100% 0%, 100% 50%, 0% 50%);
+ color: red;
+ }
+ .container > span > span {
+ color: green;
+ }
+</style>
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div class="container">
+ <br>
+ XX<span><span>X</span>X<br>XXXXX</span>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent-ref.html
new file mode 100644
index 0000000000..597481d7db
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent-ref.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<title>CSS Test Reference</title>
+<style>
+body {
+ margin: 0;
+}
+div {
+ width: 100px;
+ height: 100px;
+ background: deeppink;
+ clip-path: inset(80px 0 0 round 8px);
+}
+</style>
+<div></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent.html
new file mode 100644
index 0000000000..cb0e5ec735
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-inset-round-percent.html
@@ -0,0 +1,19 @@
+<!doctype html>
+<title>inset() with percentages resolves against reference box, not inset rect</title>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1704742">
+<link rel="help" href="https://drafts.csswg.org/css-shapes/#basic-shape-functions">
+<link rel="author" href="mailto:emilio@crisal.io" title="Emilio Cobos Álvarez">
+<link rel="author" href="https://mozilla.org" title="Mozilla">
+<link rel="match" href="clip-path-inset-round-percent-ref.html">
+<style>
+body {
+ margin: 0;
+}
+div {
+ width: 100px;
+ height: 100px;
+ background: deeppink;
+ clip-path: inset(80% 0 0 round 8%)
+}
+</style>
+<div></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1-ref.html
new file mode 100644
index 0000000000..d605e046fc
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1-ref.html
@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>Reference for clip-path linked to local-ref URL</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="c1">
+ <circle cy="110" cx="137" r="90" />
+ </clipPath>
+ </defs>
+ </svg>
+ <style>
+ div {
+ width: 300px;
+ height: 300px;
+ background-color: blue;
+ clip-path: url(#c1);
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1.html
new file mode 100644
index 0000000000..e24afbcd6b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-localRef-1.html
@@ -0,0 +1,32 @@
+<!DOCTYPE HTML>
+<html>
+ <head>
+ <head>
+ <base href="http://example.com">
+ <meta charset="utf-8">
+ <title>Testcase for clip-path linked to local-ref URL</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-localRef-1-ref.html">
+ <meta name="assert" content="Test checks after changing base URL, whether fragment URLs works correctly or not.">
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="c1">
+ <circle cy="110" cx="137" r="90" />
+ </clipPath>
+ </defs>
+ </svg>
+ <style>
+ div {
+ width: 300px;
+ height: 300px;
+ background-color: blue;
+ clip-path: url(#c1);
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-marginBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-marginBox-1a.html
new file mode 100644
index 0000000000..009ba674d8
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-marginBox-1a.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path margin-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path margin-box works correctly or not. This test is for clip-path applied to an SVG element.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 10px; top: 15px;">
+ <rect x="40" y="35" width="100" height="100" fill="blue"
+ clip-path="circle(50%) margin-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1-ref.html
new file mode 100644
index 0000000000..12bfbda589
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1-ref.html
@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS clip-path reference</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <style>
+ div.foreground {
+ position: absolute;
+ background-color: rgb(0,0,255);
+ z-index: 100;
+ width: 50px;
+ height: 50px;
+ }
+
+ div.background {
+ position: absolute;
+ background-color: rgb(0,255,255);
+ width: 100px;
+ height: 100px;
+ }
+ </style>
+ </head>
+ <body>
+ <div class="foreground"></div>
+ <div class="background"></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1.html
new file mode 100644
index 0000000000..ff0c376905
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-mix-blend-mode-1.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path with mix-blend-mode</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-mix-blend-mode-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path works with mix-blend-mode correctly or not.">
+ <style>
+ div {
+ position: absolute;
+ width: 100px;
+ height: 100px;
+ }
+
+ div.foreground {
+ background-color: rgb(255,0,255);
+ clip-path: url(#top_left);
+ z-index: 100;
+ mix-blend-mode: multiply;
+ }
+
+ div.background {
+ background-color: rgb(0,255,255);
+ }
+ </style>
+ </head>
+ <body>
+ <div class="foreground"></div>
+ <div class="background"></div>
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="top_left">
+ <rect x="0" y="0" width="50" height="50"/>
+ </clipPath>
+ </defs>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll-ref.html
new file mode 100644
index 0000000000..a4f7dc5479
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll-ref.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<style>
+.ref {
+ height: 100px;
+ width: 100px;
+ background: green;
+}
+</style>
+<div style="height: 800px"></div>
+<div class="ref"></div>
+<script>
+onload = () => {
+ window.scrollTo(0, 800);
+};
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll.html
new file mode 100644
index 0000000000..b947f10aa2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-on-fixed-position-scroll.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test out-of-view clip-path above fixed-position element scrolled into view</title>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+<link rel="help" href="https://www.w3.org/TR/css-position-3/#fixed-position">
+<link rel="help" href="https://crbug.com/1400107">
+<link rel="match" href="clip-path-on-fixed-position-scroll-ref.html">
+<style>
+div {
+ width: 100px;
+ height: 100px;
+}
+.clip {
+ clip-path: inset(0);
+}
+.fixed {
+ position: fixed;
+ background: red;
+ z-index: -1;
+ bottom: 0;
+}
+.green {
+ position: relative;
+ background: green;
+}
+</style>
+<div style="height: 800px">Scroll to the bottom. </div>
+<div class="clip">
+ <div class="fixed"></div>
+ <div class="green"></div>
+</div>
+<script>
+onload = () => {
+ window.scrollTo(0, 400);
+};
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1a.html
new file mode 100644
index 0000000000..493ba7ab05
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1a.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path padding-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path padding-box works correctly or not. This test is for clip-path applied to an HTML element.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ <style>
+ div {
+ position: absolute;
+ left: 50px;
+ top: 50px;
+ background-color: blue;
+ width: 50px;
+ height: 50px;
+ padding: 25px;
+ clip-path: circle(farthest-side) padding-box;
+ }
+ </style>
+ </head>
+ <body>
+ <div></div>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1b.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1b.html
new file mode 100644
index 0000000000..d3ea29633e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1b.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path padding-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path padding-box works correctly or not. This test is for clip-path applied to an SVG element.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 0px; top: 0px;">
+ <rect x="50" y="50" width="100" height="100" fill="blue"
+ clip-path="circle(50%) padding-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1c.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1c.html
new file mode 100644
index 0000000000..bf7b098dbd
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-paddingBox-1c.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path padding-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path padding-box works correctly or not. This test is for clip-path applied to an SVG SVG element.">
+ <style>
+ svg {
+ position: absolute;
+ left: 50px;
+ top: 50px;
+ background-color: blue;
+ width: 50px;
+ height: 50px;
+ padding: 25px;
+ clip-path: circle(farthest-side) padding-box;
+ }
+ </style>
+ </head>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-001.html
new file mode 100644
index 0000000000..ebdfc2297b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-001.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and path function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+ <link rel="match" href="reference/clip-path-path-001-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'path()' for clipping. Test nonzero path function. On pass you should
+ see a green square.">
+</head>
+<style>
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: path(nonzero, 'M10,10h80v80h-80zM25,25h50v50h-50z');
+ }
+</style>
+<body>
+ <p>The test passes if there are a green filled rect.</p>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-002.html
new file mode 100644
index 0000000000..e3049922eb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-002.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and path function with evenodd fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+ <link rel="match" href="reference/clip-path-path-002-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'path()' for clipping. Test evenodd path function. On pass you should
+ see a hollow green square.">
+</head>
+<style>
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: path(evenodd, 'M10,10h80v80h-80zM25,25h50v50h-50z');
+ }
+</style>
+<body>
+ <p>The test passes if there are a green hollow rect.</p>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-003.html
new file mode 100644
index 0000000000..af1de750c5
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-003.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip-path property and path() function with non-zero reference box offset</title>
+<link rel="help" href="https://drafts.csswg.org/css-shapes/#basic-shape-functions">
+<link rel="help" href="https://drafts.csswg.org/css-shapes/#funcdef-basic-shape-path">
+<link rel="match" href="reference/green-100x100.html">
+<style>
+ #target {
+ clip-path: path('M0 100h100v100h-100z');
+ }
+</style>
+<svg>
+ <g id="target">
+ <rect y="-100" width="100" height="300" fill="red"/>
+ <rect width="100" height="100" fill="green"/>
+ </g>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom-hittest.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom-hittest.html
new file mode 100644
index 0000000000..30ceefcbc0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom-hittest.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path property hit-testing when the page is zoomed</title>
+<link rel="author" title="Noam Rosenthal" href="mailto:noam@webkit.org">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+<meta name="assert" content="The zoomed path is hit-tested correctly">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+ #triangle {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: path(nonzero, 'M0 0, L100 0, L0 100, L 0 0');
+ zoom: 2;
+ }
+</style>
+<div id="triangle"></div>
+<script>
+ test(() => {
+ assert_equals(document.elementFromPoint(20, 20).id, 'triangle')
+ assert_equals(document.elementFromPoint(150, 20).id, 'triangle')
+ assert_equals(document.elementFromPoint(180, 180).tagName, 'BODY')
+ }, 'clip-path: path() hit-test takes zoom into account');
+
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom.html
new file mode 100644
index 0000000000..5879917f36
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-path-with-zoom.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path property when the page is zoomed</title>
+<link rel="author" title="Noam Rosenthal" href="mailto:noam@webkit.org">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-path">
+<link rel="match" href="reference/clip-path-path-with-zoom-ref.html">
+<meta name="assert" content="The path gets zoomed together with the content">
+<style>
+ #red {
+ position: absolute;
+ width: 100px;
+ height: 100px;
+ background: red;
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: path(nonzero, 'M0 0, L100 0, L0 100, L 0 0');
+ zoom: 2;
+ }
+</style>
+<div id="red"></div>
+<div id="rect"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-001.html
new file mode 100644
index 0000000000..954f0ba8d9
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-001.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and polygon function with absolute values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-rectangle-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'polygon' for clipping. Test absolute value arguments. On pass you should
+ see a green square and no red.">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: polygon(50px 50px, 200px 50px, 200px 150px, 50px 150px)"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-002.html
new file mode 100644
index 0000000000..ed2ede4fed
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-002.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and polygon function with percentage values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-rectangle-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'polygon' for clipping. Test percentage values for arguments. Percentage
+ values are relative to specified reference box. If no reference box was
+ specified, percentage values are relative to border-box. A number of
+ percentage values are specified as coordinates. On pass you should see a
+ green square and no red.">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; clip-path: polygon(20% 25%, 80% 25%, 80% 75%, 20% 75%)"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-003.html
new file mode 100644
index 0000000000..1ecf6803ab
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-003.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and polygon function with absolute and percentage values</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-rectangle-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'polygon' for clipping. Test absolute and percentage value arguments. On
+ pass you should see a green square and no red.">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="width: 150px; height: 100px; border: solid red 50px; background-color: green; position: absolute; clip-path: polygon(20% 50px, 200px 25%, 200px 150px, 20% 75%)"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-004.html
new file mode 100644
index 0000000000..cec947a361
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-004.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and polygon function with fill rule evenodd</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-rectangle-border-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape 'polygon' for clipping.
+ The point list for the polygon creates a 'hole' with the dimension of the background. With
+ the fill rule 'evenodd', this whole is clipped out. The clipping makes the green background
+ of the parent div box visible.
+ On pass you should see a green box with a blue border.">
+</head>
+<body>
+ <p>The test passes if there is a green box with a blue border.</p>
+ <div style="background-color: green; width: 250px;">
+ <div style="width: 150px; height: 100px; border: solid blue 50px; background-color: red; clip-path: polygon(evenodd, 0 0, 250px 0, 250px 200px, 0 200px, 0 50px, 200px 50px, 200px 150px, 50px 150px, 50px 50px, 0 50px)"></div>
+ </div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-005.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-005.html
new file mode 100644
index 0000000000..b687f2e752
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-005.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and polygon function with fill rule nonzero</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-rectangle-border-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'polygon' for clipping. The point list for the polygon creates a 'hole'
+ with the dimension of the background of the clipped element. With the fill
+ rule 'nonzero', this hole is clipped out. The clipping makes the green
+ background of the parent div box visible. On pass you should see a green
+ square with a blue border.">
+</head>
+<body>
+ <p>The test passes if there is a green box with a blue border.</p>
+ <div style="background-color: green; width: 250px;">
+ <div style="width: 150px; height: 100px; border: solid blue 50px; background-color: red; clip-path: polygon(nonzero, 0 0, 250px 0, 250px 200px, 0 200px, 0 50px, 50px 50px, 50px 150px, 200px 150px, 200px 50px, 0 50px)"></div>
+ </div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-006.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-006.html
new file mode 100644
index 0000000000..1b33eaaf2f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-006.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with padding-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-square-001-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box 'padding-box' for the polygon() function by mixing percentage
+ and absolute values as coordinates. On sucess you should see a green square
+ and no red.">
+</head>
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 50px;
+}
+</style>
+<body>
+ <p>The test passes if there is a green square and no red.</p>
+ <div style="clip-path: polygon(0% 0%, 100% 0%, 100px 100%, 0 100px) padding-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-007.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-007.html
new file mode 100644
index 0000000000..9b59097942
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-007.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with border-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-001-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box 'border-box' for the polygon() function by mixing percentage
+ and absolute values as coordinates. On sucess you should see a green
+ vertical stripe next to a lime green vertical stripe. Both should be of equal
+ size.">
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 50px;
+ border-left: lime solid 50px;
+}
+</style>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="clip-path: polygon(0% 25%, 50% 50px, 100px 75%, 0 150px) border-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-008.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-008.html
new file mode 100644
index 0000000000..454aba6915
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-008.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with margin-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-002-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box 'margin-box' for the polygon() function by mixing percentage
+ and absolute values as coordinates. On sucess you should see a green
+ vertical stripe next to a lime green vertical stripe. Both should be of equal
+ size.">
+</head>
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 25px;
+ border-left: lime solid 25px;
+}
+</style>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="clip-path: polygon(12.5% 25%, 37.5% 50px, 75px 50%, 25px 100px) margin-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-009.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-009.html
new file mode 100644
index 0000000000..7d3ab5bb42
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-009.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with content-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-square-002-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box 'content-box' for the polygon() function by mixing percentage
+ and absolute values as coordinates. On sucess you should see a green square
+ and no red.">
+</head>
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 25px;
+}
+</style>
+<body>
+ <p>The test passes if there is a green square and no red.</p>
+ <div style="clip-path: polygon(0% 0px, 50px 0%, 100% 50px, 0px 100%) content-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-010.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-010.html
new file mode 100644
index 0000000000..c60aba2979
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-010.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with fill-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-001-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box. 'fill-box' was specified but is not supported for HTML
+ elements. The used value should be 'border-box' for the polygon() function
+ instead. By mixing percentage and absolute values as coordinates we check
+ the correct used reference box. On sucess you should see a green
+ vertical stripe next to a lime green vertical stripe. Both should be of equal
+ size.">
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 50px;
+ border-left: lime solid 50px;
+}
+</style>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="clip-path: polygon(0% 25%, 50% 50px, 100px 75%, 0 150px) fill-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-011.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-011.html
new file mode 100644
index 0000000000..7acccd1a69
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-011.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with stroke-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-001-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box. 'stroke-box' was specified but is not supported for HTML
+ elements. The used value should be 'border-box' for the polygon() function
+ instead. By mixing percentage and absolute values as coordinates we check
+ the correct used reference box. On sucess you should see a green
+ vertical stripe next to a lime green vertical stripe. Both should be of equal
+ size.">
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 50px;
+ border-left: lime solid 50px;
+}
+</style>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="clip-path: polygon(0% 25%, 50% 50px, 100px 75%, 0 150px) stroke-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-012.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-012.html
new file mode 100644
index 0000000000..9a24abfd10
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-012.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon with view-box</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-001-ref.html">
+ <meta name="assert" content="The clip-path property allows specifying
+ basic shapes and reference boxes. This test checks the usage of the correct
+ reference box. 'view-box' was specified but is not supported for HTML
+ elements. The used value should be 'border-box' for the polygon() function
+ instead. By mixing percentage and absolute values as coordinates we check
+ the correct used reference box. On sucess you should see a green
+ vertical stripe next to a lime green vertical stripe. Both should be of equal
+ size.">
+<style>
+div {
+ width: 50px;
+ height: 50px;
+ background-color: green;
+ padding: 25px;
+ margin: 25px;
+ border: red solid 50px;
+ border-left: lime solid 50px;
+}
+</style>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="clip-path: polygon(0% 25%, 50% 50px, 100px 75%, 0 150px) view-box"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-013.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-013.html
new file mode 100644
index 0000000000..23c93f347d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-polygon-013.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path and polygon different units</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+ <link rel="help" href="http://www.w3.org/TR/css-masking-1/#propdef-clip-path">
+ <link rel="match" href="reference/clip-path-stripes-003-ref.html">
+ <meta name="assert" content="Test the support of different units for
+ polygon coordinates. The test passes if you see a multiple green and blue
+ stripe pairs. For each pair, the blue and green stripe must be of same
+ length.">
+ <meta name="flags" content="ahem">
+ <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+body {
+ margin: 0;
+}
+div {
+ width: 100%;
+ height: 20px;
+ background-color: green;
+ padding: 0;
+ margin: 0;
+ font: 20px/1 Ahem;
+}
+div:nth-child(odd) {
+ margin-bottom: 5px;
+ background-color: blue;
+}
+</style>
+<body>
+ <p>The test passes if you see a multiple green and blue stripe pairs. For each pair, the blue and green stripe must be of same length.</p>
+ <div style="clip-path: polygon(0 0, 50% 0, 50% 20px, 0 20px)"></div>
+ <div style="width: 50%"></div>
+
+ <div style="clip-path: polygon(0 0, 20em 0, 20em 20px, 0 20px)"></div>
+ <div style="width: 20em"></div>
+
+ <div style="clip-path: polygon(0 0, 50vw 0, 50vw 20px, 0 20px)"></div>
+ <div style="width: 50vw"></div>
+
+ <div style="clip-path: polygon(0 0, 40vh 0, 40vh 20px, 0 20px)"></div>
+ <div style="width: 40vh"></div>
+
+ <div style="clip-path: polygon(0 0, calc(30% + 15px) 0, calc(30% + 15px) 20px, 0 20px)"></div>
+ <div style="width: calc(30% + 15px)"></div>
+
+ <div style="clip-path: polygon(0 0, 30ex 0, 30ex 20px, 0 20px)"></div>
+ <div style="width: 30ex"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-001.html
new file mode 100644
index 0000000000..35b31ebaef
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-001.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip path reference box with box-shadow</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#propdef-box-shadow">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=418484">
+<link rel="match" href="reference/clip-path-reference-box-001-ref.html">
+<meta name="assert" content="Check that the 'clip-path' property uses the border box as the reference box.">
+
+<style>
+.clipped {
+ width: 100px;
+ height: 200px;
+ background-color: green;
+ clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
+ box-shadow: 100px 0px red;
+}
+</style>
+<div class="clipped"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-002.html
new file mode 100644
index 0000000000..a45e4537fc
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-002.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip path with floated element</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=418484">
+<link rel="match" href="reference/clip-path-reference-box-002-ref.html">
+<meta name="assert" content="Check that the 'clip-path' property uses the border box as the reference box.">
+
+<style>
+.clipped {
+ width: 100px;
+ height: 200px;
+ background-color: green;
+ clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
+}
+</style>
+<div class="clipped">
+ <div style="float:left; margin-left:-100px; margin-top:-100px;">&nbsp;</div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-003.html
new file mode 100644
index 0000000000..ac88439d7b
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-003.html
@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip path reference box with transform</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=418484">
+<link rel="match" href="reference/clip-path-reference-box-003-ref.html">
+<meta name="assert" content="Check that the 'clip-path' property uses the border box as the reference box when using transform.">
+
+<style>
+.clipped {
+ width: 100px;
+ height: 200px;
+ background-color: green;
+ clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
+}
+.abs {
+ position: absolute;
+ width: 200px;
+ height: 200px;
+}
+</style>
+<div class="abs">
+ <div class="clipped" style="position: absolute; overflow: hidden">
+ <div class="abs" style="transform: translate(0px, 100px); background-color: red;"></div>
+ </div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-004.html
new file mode 100644
index 0000000000..eb89065364
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-box-004.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip path reference box with inline boxes</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.csswg.org/css-box-3/#content-area">
+<link rel="help" href="https://drafts.csswg.org/css-shapes-1/#funcdef-polygon">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=641907">
+<link rel="match" href="reference/clip-path-reference-box-004-ref.html">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css"/>
+<meta name="assert" content="Check that the 'clip-path' property applied to an inline that spans multiple lines uses the correct reference boxes/reference box for each fragment.">
+
+<style>
+div {
+ width: 100px;
+ height: 100px;
+ overflow: hidden;
+ line-height: 50px;
+ font-size: 50px;
+ font-family: Ahem;
+}
+span {
+ background-color: green;
+ color: green;
+ clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 0% 100%);
+}
+</style>
+<div>
+<span>XX XX</span>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-restore.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-restore.html
new file mode 100644
index 0000000000..eccebd8fbc
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-reference-restore.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<title>CSS Masking: Consecutive clip-paths don't affect each other.</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="issue" href="https://crbug.com/391291">
+<link rel="match" href="reference/clip-path-reference-restore-ref.html">
+<meta name="assert" content="Check that consecutive clip-paths don't affect each other"/>
+<style>
+.error {
+ width: 100px;
+ height: 100px;
+ background-color: red;
+ position: absolute;
+}
+.test {
+ width: 200px;
+ height: 50px;
+ background-color: green;
+ clip-path: url(#c);
+}
+</style>
+<div class="error"></div>
+<div class="test"></div>
+<div class="test"></div>
+<svg>
+ <defs>
+ <clipPath id="c" clipPathUnits="objectBoundingBox">
+ <rect width="0.5" height="1"/>
+ </clipPath>
+ </defs>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform-ref.html
new file mode 100644
index 0000000000..ddbf0e9812
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<div style="transform: rotate(45deg); width: 200px; height: 200px; will-change: transform">
+ <div style="position: relative; top: 30px; left: 30px; width: 140px; height: 140px; background: green"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform.html
new file mode 100644
index 0000000000..a609e9cc91
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-rotated-will-change-transform.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<title>Clip Path: should be correctly rotated by transform with will-change:transform</title>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="match" href="clip-path-rotated-will-change-transform-ref.html">
+<style>div { width: 200px; height: 200px; position: absolute; }</style>
+<div style="transform: rotate(45deg); clip-path: inset(31px)">
+ <div style="will-change: transform; background: red"></div>
+</div>
+<div style="transform: rotate(45deg); will-change: transform">
+ <div style="top: 30px; left: 30px; width: 140px; height: 140px; background: green"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size-ref.html
new file mode 100644
index 0000000000..a5e44e7398
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size-ref.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test Reference</title>
+<style>
+#target {
+ margin: 30px;
+ height: 40px;
+ width: 40px;
+ background-color: lime;
+ border-radius: 5px;
+}
+</style>
+<div id="target"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size.html
new file mode 100644
index 0000000000..32396fa8d2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-round-zero-size.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS clip path with zero box size</title>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://bugzil.la/1785903">
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<link rel="match" href="clip-path-round-zero-size-ref.html">
+<!-- Allow differences of antialised pixels along rounded edges -->
+<meta name="fuzzy" content="0-64;0-28">
+<style>
+#target {
+ margin: 50px;
+ height: 0px;
+ width: 0px;
+ outline: 50px solid lime;
+ clip-path: inset(-20px round 5px);
+}
+</style>
+<div id="target"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video-ref.html
new file mode 100644
index 0000000000..43ebcc8dc7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<p>Expect no hairlines below.</p>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video.html
new file mode 100644
index 0000000000..c92702d8e7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scaled-video.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta name="assert" content="There should be no hairline along the edges of clip-path bounding box">
+<link rel="help" href="https://drafts.fxtf.org/css-masking/#ClipPathElement">
+<link rel="help" href="https://crbug.com/1171601">
+<link rel="match" href="clip-path-scaled-video-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<body style="overflow: hidden">
+<p>Expect no hairlines below.</p>
+<svg width="700" height="550">
+ <!-- Clipping the video-->
+ <clipPath id="clip">
+ <polygon points="100,100 250,250"/>
+ </clipPath>
+ <g clip-path="url(#clip)" transform="scale(0.112)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" autoplay loop></video>
+ </foreignObject>
+ </g>
+ <g clip-path="url(#clip)" transform="scale(0.345)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" autoplay loop></video>
+ </foreignObject>
+ </g>
+ <g clip-path="url(#clip)" transform="scale(0.778)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" autoplay loop></video>
+ </foreignObject>
+ </g>
+ <g clip-path="url(#clip)" transform="scale(0.912)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" autoplay loop></video>
+ </foreignObject>
+ </g>
+ <g clip-path="url(#clip)" transform="scale(1.678)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" autoplay loop></video>
+ </foreignObject>
+ </g>
+ <g clip-path="url(#clip)" transform="scale(3.333)">
+ <foreignObject width="320" height="240">
+ <video src="/media/test.ogv" oncanplaythrough="takeScreenshot()" autoplay loop></video>
+ </foreignObject>
+ </g>
+</svg>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scroll.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scroll.html
new file mode 100644
index 0000000000..880fd8b77a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-scroll.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path property with overflow:scroll</title>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#clip-path-property">
+<link rel="match" href="reference/clip-path-scroll-ref.html">
+<html class="reftest-wait">
+<p>The test passes if there is a green square containing text (which can be scrolled
+with mouse wheel or touch). No scrollbars should be seen.</p>
+<div id="target" style="clip-path: polygon(10px 10px, 10px 100px, 100px 100px, 100px 10px);
+ width: 200px; height: 200px; overflow: scroll; background: red">
+ <div style="position: relative; top: 100px;
+ width: 100px; height: 100px; background: green">
+ </div>
+ <div style="height: 1000px"></div>
+</div>
+<script>
+requestAnimationFrame(() => {
+ requestAnimationFrame(() => {
+ target.scrollTop = 100;
+ document.documentElement.classList.remove("reftest-wait");
+ });
+});
+</script>
+</html>
+
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-001.html
new file mode 100644
index 0000000000..6033e9743e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-001.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and shape function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="reference/clip-path-path-001-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test nonzero path function. On pass you should
+ see a green square.">
+</head>
+<style>
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: shape(nonzero from 10px 10px,
+ hline by 80px, vline by 80%, hline by -80%, close,
+ move to 25px 25px, hline by 50px, vline by 50px, hline by -50%, close);
+ }
+</style>
+<body>
+ <p>The test passes if there are a green filled rect.</p>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002-units.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002-units.html
new file mode 100644
index 0000000000..b928876a0a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002-units.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and shape function with evenodd fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="reference/clip-path-path-002-ref.html">
+ <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test evenodd path function. On pass you should
+ see a green hollow square.">
+</head>
+<style>
+ * {
+ font-size: 16px;
+ }
+
+ html {
+ font-size: 10px;
+ --v50: 50px;
+ }
+
+ #rect {
+ width: 100px;
+ height: 100px;
+ font-size: 5px;
+ font-family: Ahem;
+ background-color: green;
+ clip-path: shape(evenodd from 10px 2ch,
+ hline by 80px, vline by 80%, hline by -8rem, close,
+ move to 25% 25px, hline by 10em, vline by var(--v50), hline by -50%);
+ }
+</style>
+<body>
+ <p>The test passes if there are a green hollow rect.</p>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002.html
new file mode 100644
index 0000000000..3cb39f8d44
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-002.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and shape function with evenodd fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="reference/clip-path-path-002-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test evenodd path function. On pass you should
+ see a green hollow square.">
+</head>
+<style>
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: shape(evenodd from 10px 10px,
+ hline by 80px, vline by 80%, hline by -80px, close,
+ move to 25% 25px, hline by 50px, vline by 50px, hline by -50%);
+ }
+</style>
+<body>
+ <p>The test passes if there are a green hollow rect.</p>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-003.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-003.html
new file mode 100644
index 0000000000..22e7d9aaf5
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-003.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and shape function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="reference/clip-path-shape-003-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test curves.">
+</head>
+<style>
+ div {
+ width: 100px;
+ height: 100px;
+ }
+ #ref {
+ clip-path: path(nonzero, "M 10 10, Q 40 0 60 20, T 90 0, c 10 40 20 20 -20 60, s -10 70 -40 -10");
+ background-color: red;
+ position: absolute;
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: shape(nonzero from 10px 10px,
+ curve to 60px 20% via 40px 0,
+ smooth to 90px 0,
+ curve by -20px 60% via 10% 40px 20% 20px,
+ smooth by -40% -10px via -10px 70px);
+ }
+</style>
+<body>
+ <p>You should see no red.</p>
+ <div id="ref"></div>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-004.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-004.html
new file mode 100644
index 0000000000..14e3ba6329
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-shape-004.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Test clip-path property and shape function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+ <link rel="match" href="reference/clip-path-shape-004-ref.html">
+ <meta name="assert" content="The clip-path property takes the basic shape
+ 'shape()' for clipping. Test arcs.">
+</head>
+<style>
+ div {
+ width: 100px;
+ height: 100px;
+ }
+ #ref {
+ clip-path: path(nonzero, "M 20 20 A 25 12 0 0 1 80 20, a 33 33 120 1 1 -40 50, A 20 25 0 0 0 20 20");
+ background-color: red;
+ position: absolute;
+ }
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: shape(nonzero from 20px 20px,
+ arc to 80px 20px of 25px 12px cw,
+ arc by -40px 50px of 33px cw large rotate 120deg,
+ arc to 20% 20% of 20px 25px ccw);
+ }
+</style>
+<body>
+ <p>You should see no red.</p>
+ <div id="ref"></div>
+ <div id="rect"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1a.html
new file mode 100644
index 0000000000..31fec7516c
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1a.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path stroke-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path stroke-box works correctly or not. This test is for clip-path applied to an SVG SVG element.">
+ <style>
+ svg {
+ position: absolute;
+ left: 40px;
+ top: 40px;
+ background-color: blue;
+ width: 30px;
+ height: 30px;
+ margin: 10px;
+ padding: 10px;
+ border: solid blue 25px;
+ clip-path: circle(farthest-side) stroke-box;
+ }
+ </style>
+ </head>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1b.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1b.html
new file mode 100644
index 0000000000..3ac1a834fb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-strokeBox-1b.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path stroke-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-64; totalPixels=0-194">
+ <meta name="assert" content="Test checks whether clip-path stroke-box works correctly or not.">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 0px; top: 0px;">
+ <rect x="60" y="60" width="80" height="80" fill="blue" stroke="blue" stroke-width="20" clip-path="circle(50%) stroke-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate-ref.html
new file mode 100644
index 0000000000..20c8085b94
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate-ref.html
@@ -0,0 +1,28 @@
+<!doctype html>
+<html>
+<title>Clip Path: invalidate composited clip-path via SVG</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+
+<style>
+ body {
+ margin: 0;
+ }
+ div {
+ height: 500px;
+ background: black;
+ clip-path: url(#clip);
+ will-change: transform;
+ }
+ svg {
+ width: 0;
+ height: 0;
+ }
+</style>
+
+<div></div>
+
+<svg viewBox="0 0 1 1">
+ <clipPath id="clip" clipPathUnits="objectBoundingBox">
+ <polygon points="0,0 0.5,1 1,0" />
+ </clipPath>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate.html
new file mode 100644
index 0000000000..0bf921c7cf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-invalidate.html
@@ -0,0 +1,41 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>Clip Path: invalidate composited clip-path via SVG</title>
+<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="match" href="clip-path-svg-invalidate-ref.html">
+<script src="/common/reftest-wait.js"></script>
+
+<style>
+ body {
+ margin: 0;
+ }
+ div {
+ height: 500px;
+ background: black;
+ clip-path: url(#clip);
+ will-change: transform;
+ }
+ svg {
+ width: 0;
+ height: 0;
+ }
+</style>
+
+<div></div>
+
+<svg viewBox="0 0 1 1">
+ <clipPath id="clip" clipPathUnits="objectBoundingBox">
+ <polygon points="0,0 0.5,0.5 1,0" />
+ </clipPath>
+</svg>
+
+<script>
+ const polygon = document.querySelector("polygon");
+ const points = "0,0 0.5,1 1,0";
+ requestAnimationFrame(() => requestAnimationFrame(() => {
+ polygon.setAttribute("points", points);
+ takeScreenshot();
+ }));
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter-ref.html
new file mode 100644
index 0000000000..194c473482
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter-ref.html
@@ -0,0 +1,11 @@
+<!doctype html>
+<meta name="flags" content="ahem">
+<link rel="stylesheet" href="/fonts/ahem.css" />
+<style>
+#svgText {
+ font: 100px/1 Ahem;
+}
+</style>
+<svg width="500" height="300">
+ <text id="svgText" x="10" y="100">Text</text>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter.html
new file mode 100644
index 0000000000..68d462ab80
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-backdrop-filter.html
@@ -0,0 +1,25 @@
+<!doctype html>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
+<link rel="match" href="clip-path-svg-text-backdrop-filter-ref.html">
+<meta name="fuzzy" content="0-1;0-200">
+<meta name="flags" content="ahem">
+<link rel="stylesheet" href="/fonts/ahem.css" />
+<style>
+.masked {
+ width: 500px;
+ height: 300px;
+ clip-path: url(#svgPath);
+ backdrop-filter: invert(100%);
+ background: transparent;
+}
+#svgText {
+ font: 100px/1 Ahem;
+}
+</style>
+<div class="masked"></div>
+<svg>
+ <clipPath id="svgPath">
+ <text id="svgText" x="10" y="100">Text</text>
+ </clipPath>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-css.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-css.html
new file mode 100644
index 0000000000..8a0d7111b0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-css.html
@@ -0,0 +1,24 @@
+<!doctype html>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#ClipPathElement">
+<link rel="match" href="reference/clip-path-svg-text-css-ref.html">
+<meta name="fuzzy" content="0-1;0-200">
+<meta name="flags" content="ahem">
+<link rel="stylesheet" href="/fonts/ahem.css" />
+<style>
+text {
+ font: 50px/1 Ahem;
+ text-shadow: grey 10px 10px;
+ fill: none;
+ stroke: red;
+ stroke-width: 10px;
+}
+</style>
+<svg>
+ <defs>
+ <!-- clipPath works on raw geometry regardless of fill/stroke/shadow etc -->
+ <clipPath id="c">
+ <text x="30" y="50">Hello</text>
+ </clipPath>
+ </defs>
+ <rect width="200" height="100" fill="green" clip-path="url(#c)"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-font-loading.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-font-loading.html
new file mode 100644
index 0000000000..230c36ce6e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-svg-text-font-loading.html
@@ -0,0 +1,30 @@
+<!doctype html>
+<html class="reftest-wait">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.csswg.org/css-font-loading/#font-face-load">
+<link rel="help" href="https://crbug.com/1222734">
+<link rel="match" href="reference/green-100x100.html">
+<script src="/common/rendering-utils.js"></script>
+<script src="/common/reftest-wait.js"></script>
+<style>
+ #target {
+ width: 100px;
+ height: 100px;
+ border-right: 100px solid red;
+ clip-path: url(#clip);
+ background: green;
+ }
+</style>
+<div id="target"></div>
+<svg height="0">
+ <clipPath id="clip">
+ <text y="80" font-size="100" font-family="DelayedAhem, serif">X</text>
+ </clipPath>
+</svg>
+<script>
+ waitForAtLeastOneFrame().then(() => {
+ let font = new FontFace('DelayedAhem', 'url("/fonts/Ahem.ttf")');
+ document.fonts.add(font);
+ font.load().then(takeScreenshot);
+ });
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-001.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-001.html
new file mode 100644
index 0000000000..01f11a34a3
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-001.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<title>CSS Masking: Test clip-path after updating its transform</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="issue" href="https://bugs.chromium.org/p/chromium/issues/detail?id=881700">
+<link rel="match" href="reference/clip-path-transform-mutated-001-ref.html">
+<meta name="assert" content="This test ensures that updating clipPath transform works properly.">
+<script>
+setup({ explicit_done: true });
+</script>
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url(#clip);
+}
+</style>
+<div id="target"></div>
+<svg>
+ <clipPath id="clip">
+ <rect width="1" height="1"/>
+ </clipPath>
+</svg>
+<script>
+clip.style.transform = 'scale(100, 100)';
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-002.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-002.html
new file mode 100644
index 0000000000..de00a013ad
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-transform-mutated-002.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>CSS Masking: Mutating a &lt;clipPath&gt;s 'transform' updates the clip path</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path"">
+<link rel="help" href="https://crbug.com/881700">
+<link rel="match" href="reference/clip-path-transform-mutated-002-ref.html">
+<meta name="assert" content="Check that clipPath's clients should be notified when the 'transform' presentation attribute (or CSS property) was mutated on a <clipPath>."/>
+
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/rendering-utils.js"></script>
+
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url(#clip);
+}
+</style>
+<div id="target"></div>
+<svg>
+ <clipPath id="clip">
+ <rect width="1" height="1"/>
+ </clipPath>
+</svg>
+<script>
+ waitForAtLeastOneFrame().then(function() {
+ clip.setAttribute('transform', 'scale(100 100)');
+ takeScreenshot();
+ });
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change-from-empty.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change-from-empty.html
new file mode 100644
index 0000000000..2de0bb866f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change-from-empty.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Switch from an empty to a non-empty clip-path url()</title>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="match" href="reference/green-100x100.html">
+<script src="/common/reftest-wait.js"></script>
+<svg>
+ <clipPath id="empty"/>
+ <clipPath id="rect">
+ <rect width="100" height="100"/>
+ </clipPath>
+ <rect width="100" height="100" fill="red"/>
+ <rect width="100" height="100" fill="green" id="target" clip-path="url(#empty)"/>
+</svg>
+<script>
+ requestAnimationFrame(() => {
+ requestAnimationFrame(() => {
+ document.getElementById('target').setAttribute('clip-path', 'url(#rect)');
+ takeScreenshot();
+ });
+ });
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change.html
new file mode 100644
index 0000000000..4a6266aabd
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-url-reference-change.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Switch from one clip-path url() to another with the same bounds</title>
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#clipping-paths">
+<link rel="help" href="http://www.w3.org/TR/css-masking-1/#the-clip-path">
+<link rel="match" href="reference/green-100x100.html">
+<script src="/common/reftest-wait.js"></script>
+<svg>
+ <clipPath id="circle">
+ <circle cx="50" cy="50" r="50"/>
+ </clipPath>
+ <clipPath id="rect">
+ <rect width="100" height="100"/>
+ </clipPath>
+ <rect width="100" height="100" fill="red"/>
+ <rect width="100" height="100" fill="green" id="target" clip-path="url(#circle)"/>
+</svg>
+<script>
+ requestAnimationFrame(() => {
+ requestAnimationFrame(() => {
+ document.getElementById('target').setAttribute('clip-path', 'url(#rect)');
+ takeScreenshot();
+ });
+ });
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1a.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1a.html
new file mode 100644
index 0000000000..5b029e1ef7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1a.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path view-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="assert" content="Test checks whether clip-path view-box works correctly or not.">
+ <meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+ </head>
+ <body>
+ <svg width="200" height="200" style="position: absolute; left: 10px; top: 10px;">
+ <rect x="20" y="20" width="135" height="135" fill="blue"
+ clip-path="circle(25% at calc(50% - 10px) calc(50% - 10px)) view-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1b.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1b.html
new file mode 100644
index 0000000000..81bfcb8798
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1b.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path view-box with viewbox</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-7; totalPixels=0-150">
+ <meta name="assert" content="Test checks whether clip-path view-box with viewbox works correctly or not.">
+ </head>
+ <body>
+ <svg width="200" height="200" viewBox="50 50 100 100" preserveAspectRatio="none" style="position: absolute; left: 10px; top: 10px;">
+ <rect x="0" y="0" width="200" height="200" fill="blue"
+ clip-path="circle(25% at calc(50% - 5px) calc(50% - 5px)) view-box"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1c.html b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1c.html
new file mode 100644
index 0000000000..26f2750e32
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/clip-path-viewBox-1c.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Masking: clip-path: clip path view-box</title>
+ <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
+ <link rel="author" title="Mozilla" href="https://www.mozilla.org">
+ <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-clip-path">
+ <link rel="match" href="clip-path-geometryBox-1-ref.html">
+ <meta name="fuzzy" content="maxDifference=0-52; totalPixels=0-355">
+ <meta name="assert" content="Test checks whether clip-path view-box works correctly or not. This test is for clip-path applied to an SVG SVG element.">
+ <style>
+ svg {
+ position: absolute;
+ left: 40px;
+ top: 40px;
+ background-color: blue;
+ width: 30px;
+ height: 30px;
+ margin: 10px;
+ padding: 10px;
+ border: solid blue 25px;
+ clip-path: circle(farthest-side) view-box;
+ }
+ </style>
+ </head>
+ <body>
+ <svg width="200" height="200">
+ <rect x="0" y="0" width="200" height="200" fill="blue"/>
+ </svg>
+ </body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/interpolation.html b/testing/web-platform/tests/css/css-masking/clip-path/interpolation.html
new file mode 100644
index 0000000000..da3981feed
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/interpolation.html
@@ -0,0 +1,60 @@
+<!doctype html>
+<meta charset=utf-8>
+<meta name="assert"
+ content="This test checks if the inerpolation on clip-path is correct" />
+<title>Tests for the output of the interpolation of clip-path</title>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<body>
+<div id='log'></div>
+<script type='text/javascript'>
+'use strict';
+
+function createDiv(test) {
+ var element = document.createElement('div');
+ document.body.appendChild(element);
+ test.add_cleanup(function() {
+ element.remove();
+ });
+ return element;
+}
+
+test(function(t) {
+ var div = createDiv(t);
+ div.style.clipPath = 'circle(25px)';
+ // The radius becomes negative between 60%~61%, so we set the delay to -61s.
+ div.style.transition = 'all 100s cubic-bezier(0, 0, 1, -60) -61s';
+ getComputedStyle(div).clipPath;
+
+ div.style.clipPath = 'circle(26px)';
+ assert_equals(getComputedStyle(div).clipPath, 'circle(0px at 50% 50%)',
+ 'The radius of circle is clamped to zero at 61%');
+}, 'Test circle with negative easing on clip-path');
+
+test(function(t) {
+ var div = createDiv(t);
+ div.style.clipPath = 'ellipse(25px 25px)';
+ // The radius becomes negative between 60%~61%, so we set the delay to -61s.
+ div.style.transition = 'all 100s cubic-bezier(0, 0, 1, -60) -61s';
+ getComputedStyle(div).clipPath;
+
+ div.style.clipPath = 'ellipse(26px 26px)';
+ assert_equals(getComputedStyle(div).clipPath, 'ellipse(0px 0px at 50% 50%)',
+ 'The radius of ellipse is clamped to zero at 61%');
+}, 'Test ellipse with negative easing on clip-path');
+
+test(function(t) {
+ var div = createDiv(t);
+ div.style.clipPath = 'inset(10% round 25px)';
+ // The radius becomes negative between 60%~61%, so we set the delay to -61s.
+ div.style.transition = 'all 100s cubic-bezier(0, 0, 1, -60) -61s';
+ getComputedStyle(div).clipPath;
+
+ div.style.clipPath = 'inset(10% round 26px)';
+ assert_equals(getComputedStyle(div).clipPath, 'inset(10%)',
+ 'The radius of inset is clamped to zero at 61%');
+}, 'Test inset with negative easing on clip-path');
+
+</script>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference-local-url-with-base-001.html b/testing/web-platform/tests/css/css-masking/clip-path/reference-local-url-with-base-001.html
new file mode 100644
index 0000000000..c65761bddf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference-local-url-with-base-001.html
@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<title>CSS Masking: clip path with local URL using a base element</title>
+<link rel="author" title="Fredrik Söderquist" href="mailto:fs@opera.com">
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="help" href="https://drafts.csswg.org/css-values/#local-urls">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=470608">
+<link rel="match" href="reference/reference-local-url-with-base-001-ref.html">
+<meta name="assert" content="Check that fragment-only URLs are always document-local references.">
+
+<base href="http://www.example.com/">
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ border-right: 100px solid red;
+ background-color: green;
+ clip-path: url(#clip);
+}
+</style>
+<div id="target"></div>
+<svg>
+ <clipPath id="clip">
+ <rect width="100" height="100"/>
+ </clipPath>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference-mutated.html b/testing/web-platform/tests/css/css-masking/clip-path/reference-mutated.html
new file mode 100644
index 0000000000..09642853c7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference-mutated.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>CSS Masking: SVG clipPath dynamically updated.</title>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="match" href="reference/reference-mutated-ref.html">
+<meta name="assert" content="Test ensures that SVG clipPath updates properly when dynamically changed."/>
+
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/rendering-utils.js"></script>
+
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url(#clip);
+}
+</style>
+<div id="target"></div>
+<svg height="0" width="0">
+ <defs>
+ <clipPath id="clip" clipPathUnits="objectBoundingBox">
+ <circle cx="0.5" cy="0.5" r="0.25"></circle>
+ </clipPath>
+ </defs>
+</svg>
+<script>
+waitForAtLeastOneFrame().then(function() {
+ document.querySelector('circle').setAttribute('r', 1);
+ takeScreenshot();
+});
+</script>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference-nonexisting-existing-local.html b/testing/web-platform/tests/css/css-masking/clip-path/reference-nonexisting-existing-local.html
new file mode 100644
index 0000000000..d02e1439e6
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference-nonexisting-existing-local.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<title>CSS Masking: fragment of non valid URL as clip.</title>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-clip-path">
+<link rel="match" href="reference/reference-nonexisting-existing-local-ref.html">
+<meta name="assert" content="Test ensures that only local URLs with a valid fragment result in a valid clip."/>
+<style>
+#target {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url(notexisting.svg#c);
+}
+</style>
+<div style="background-color: red; width: 100px">
+ <div id="target"></div>
+</div>
+<svg>
+ <clipPath id="c" clipPathUnits="objectBoundingBox">
+ <circle cx="0.5" cy="0.5" r="0.5"/>
+ </clipPath>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-2-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-2-ref.html
new file mode 100644
index 0000000000..7794d32b3f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-2-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <style type="text/css">
+ body, div {
+ padding: 0;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; border-radius: 100px; background-color: green; position: absolute; left: 100px;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-3-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-3-ref.html
new file mode 100644
index 0000000000..4cffe8837d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-3-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <style type="text/css">
+ body, div {
+ padding: 0;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; border-radius: 100px; background-color: green; position: relative; top: 100px;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-ref.html
new file mode 100644
index 0000000000..c427e696bf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-circle-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a full green circle.</p>
+ <div style="width: 200px; height: 200px; border-radius: 100px; background-color: green;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-001-ref.html
new file mode 100644
index 0000000000..4337cdf637
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-001-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<body style="margin: 0">
+ <div style="width: 90px; height: 90px; margin-left: 105px; margin-top: 5px; background-color: green"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-002-ref.html
new file mode 100644
index 0000000000..4337cdf637
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-columns-shape-002-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<body style="margin: 0">
+ <div style="width: 90px; height: 90px; margin-left: 105px; margin-top: 5px; background-color: green"></div>
+</body>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-descendant-text-mutated-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-descendant-text-mutated-001-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-descendant-text-mutated-001-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-document-element-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-document-element-ref.html
new file mode 100644
index 0000000000..4608e54b20
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-document-element-ref.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<style>
+div {
+ position: absolute;
+ width: 50px;
+ height: 50px;
+ background: green;
+}
+</style>
+<div style="top: 50px; left: 50px"></div>
+<div style="top: 100px; left: 50px"></div>
+<div style="top: 100px; left: 100px"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ellipse-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ellipse-ref.html
new file mode 100644
index 0000000000..5adc91a5c0
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ellipse-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a full green ellipse.</p>
+ <div style="margin-top: 50px; margin-left: 50px; position: absolute; width: 150px; height: 100px; border-top-right-radius: 75px 50px; border-bottom-right-radius: 75px 50px; border-top-left-radius: 75px 50px; border-bottom-left-radius: 75px 50px; background-color: green;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-filter-radius-clips-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-filter-radius-clips-ref.html
new file mode 100644
index 0000000000..72bdf2202d
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-filter-radius-clips-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<div style="padding: 10px">
+ <div id="blur" style="will-change: filter; width: 100px; height: 100px; background: lime"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-001-ref.html
new file mode 100644
index 0000000000..afc1d18f20
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-001-ref.html
@@ -0,0 +1,29 @@
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reference for clip-path's path function with nonzero</title>
+ <style type="text/css">
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url("#clip");
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there are a green filled rect.</p>
+ <div id="rect"></div>
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="clip">
+ <path clip-rule="nonzero" d="M10,10h80v80h-80zM25,25h50v50h-50z"/>
+ </clipPath>
+ </defs>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-002-ref.html
new file mode 100644
index 0000000000..d9ea5183fb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-002-ref.html
@@ -0,0 +1,29 @@
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reference for clip-path's path function with evenodd</title>
+ <style type="text/css">
+ #rect {
+ width: 100px;
+ height: 100px;
+ background-color: green;
+ clip-path: url("#clip");
+ }
+ </style>
+</head>
+<body>
+ <p>The test passes if there are a green hollow rect.</p>
+ <div id="rect"></div>
+ <svg height="0" width="0">
+ <defs>
+ <clipPath id="clip">
+ <path clip-rule="evenodd" d="M10,10h80v80h-80zM25,25h50v50h-50z"/>
+ </clipPath>
+ </defs>
+ </svg>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-with-zoom-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-with-zoom-ref.html
new file mode 100644
index 0000000000..ef91c619c4
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-path-with-zoom-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+ <title>CSS Masking: Test clip-path property when the page is zoomed</title>
+ <style>
+ #rect {
+ width: 200px;
+ height: 200px;
+ background: green;
+ clip-path: path(nonzero, 'M0 0, L200 0, L0 200');
+ }
+ </style>
+ <div id="rect"></div>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-border-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-border-ref.html
new file mode 100644
index 0000000000..9a61c76902
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-border-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a green box with a blue border.</p>
+ <div style="width: 150px; height: 100px; border: solid blue 50px; background-color: green;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-ref.html
new file mode 100644
index 0000000000..1d3810a778
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-rectangle-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a green box.</p>
+ <div style="margin-top: 50px; margin-left: 50px; position: absolute; width: 150px; height: 100px; background-color: green;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-bottom-green-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-bottom-green-ref.html
new file mode 100644
index 0000000000..ad6abc4f91
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-bottom-green-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <style>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <div style="width: 100%; height: 50%; margin-top: 50%; background-color: green; position: absolute;"></div>
+ <p style="position: absolute;">The test passes if the top half of the site is white and the bottom half of the site is green.</p>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-right-green-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-right-green-ref.html
new file mode 100644
index 0000000000..a19be598ca
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-ref-right-green-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<head>
+ <title>CSS Reftest Reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <style>
+ html, body {
+ width: 100%;
+ height: 100%;
+ margin: 0;
+ }
+ </style>
+</head>
+<body>
+ <div style="width: 50%; height: 100%; margin-left: 50%; background-color: green; position: absolute;"></div>
+ <p style="position: absolute;">The test passes if the left half of the site is white and the right half of the site is green.</p>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-001-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-001-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-002-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-002-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-003-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-003-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-003-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-004-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-004-ref.html
new file mode 100644
index 0000000000..3464a4712a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-box-004-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 50px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-restore-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-restore-ref.html
new file mode 100644
index 0000000000..683511fd80
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-reference-restore-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green;"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-scroll-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-scroll-ref.html
new file mode 100644
index 0000000000..a647e8a0c2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-scroll-ref.html
@@ -0,0 +1,5 @@
+<!DOCTYPE html>
+<p>The test passes if there is a green square containing text (which can be scrolled
+with mouse wheel or touch). No scrollbars should be seen.</p>
+<div style="position: relative; top: 10px; left: 10px; width: 90px; height: 90px; background: green">
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-003-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-003-ref.html
new file mode 100644
index 0000000000..46e098c4eb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-003-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>Reference of CSS Masking: Test clip-path property and shape function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+</head>
+<style>
+ div {
+ width: 100px;
+ height: 100px;
+ }
+ #ref {
+ background-color: green;
+ clip-path: path(nonzero, "M 10 10, Q 40 0 60 20, T 90 0, c 10 40 20 20 -20 60, s -10 70 -40 -10");
+ position: absolute;
+ }
+</style>
+<body>
+ <p>You should see no red.</p>
+ <div id="ref"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-004-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-004-ref.html
new file mode 100644
index 0000000000..ec8f941079
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-shape-004-ref.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>Reference of CSS Masking: Test clip-path property and shape function with nonzero fill</title>
+ <link rel="help" href="https://drafts.csswg.org/css-shapes-2/#funcdef-shape">
+</head>
+<style>
+ div {
+ width: 100px;
+ height: 100px;
+ }
+ #ref {
+ background-color: green;
+ clip-path: path(nonzero, "M 20 20 A 25 12 0 0 1 80 20, a 33 33 120 1 1 -40 50, A 20 25 0 0 0 20 20");
+ position: absolute;
+ }
+</style>
+<body>
+ <p>You should see no red.</p>
+ <div id="ref"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-001-ref.html
new file mode 100644
index 0000000000..6bc5a16754
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-001-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reftest reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a green square and no red.</p>
+ <div style="width: 100px; height: 100px; background-color: green; margin: 75px;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-002-ref.html
new file mode 100644
index 0000000000..5230b0f2ff
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-square-002-ref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reftest reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if there is a green square and no red.</p>
+ <div style="width: 50px; height: 50px; background-color: green; margin: 75px;"></div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-001-ref.html
new file mode 100644
index 0000000000..75d08dc59e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-001-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reftest reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="width: 100px; height: 100px; margin: 75px 0 0 25px; background-color: green;">
+ <div style="width: 50px; height: 100px; background-color: lime;"></div>
+ </div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-002-ref.html
new file mode 100644
index 0000000000..8dd1c926cb
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-002-ref.html
@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reftest reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+</head>
+<body>
+ <p>The test passes if you see a green vertical stripe next to a lime green vertical stripe, both stripes should be of equal size and there should be no red.</p>
+ <div style="width: 50px; height: 50px; margin: 50px 0 0 25px; background-color: green;">
+ <div style="width: 25px; height: 50px; background-color: lime;"></div>
+ </div>
+</body>
+</html> \ No newline at end of file
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-003-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-003-ref.html
new file mode 100644
index 0000000000..f4b7fa10f2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-stripes-003-ref.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Masking: Reftest reference</title>
+ <link rel="author" title="Dirk Schulze" href="mailto:dschulze@adobe.com">
+ <meta name="flags" content="ahem">
+ <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+body {
+ margin: 0;
+}
+div {
+ height: 20px;
+ background-color: green;
+ padding: 0;
+ margin: 0;
+ font: 20px/1 Ahem;
+}
+div:nth-child(odd) {
+ margin-bottom: 5px;
+ background-color: blue;
+}
+</style>
+<body>
+ <p>The test passes if you see a multiple green and blue stripe pairs. For each pair, the blue and green stripe must be of same length.</p>
+ <div style="width: 50%"></div>
+ <div style="width: 50%"></div>
+
+ <div style="width: 20em"></div>
+ <div style="width: 20em"></div>
+
+ <div style="width: 50vw"></div>
+ <div style="width: 50vw"></div>
+
+ <div style="width: 40vh"></div>
+ <div style="width: 40vh"></div>
+
+ <div style="width: calc(30% + 15px)"></div>
+ <div style="width: calc(30% + 15px)"></div>
+
+ <div style="width: 30ex"></div>
+ <div style="width: 30ex"></div>
+</body>
+</html>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-svg-text-css-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-svg-text-css-ref.html
new file mode 100644
index 0000000000..8cf2cd253a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-svg-text-css-ref.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<meta name="flags" content="ahem">
+<link rel="stylesheet" href="/fonts/ahem.css" />
+<style>
+text {
+ font: 50px/1 Ahem;
+}
+</style>
+<svg>
+ <defs>
+ <clipPath id="c">
+ <text x="30" y="50">Hello</text>
+ </clipPath>
+ </defs>
+ <rect width="200" height="100" fill="green" clip-path="url(#c)"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-001-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-001-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-002-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-002-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/clip-path-transform-mutated-002-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/green-100x100.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/green-100x100.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/green-100x100.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-local-url-with-base-001-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-local-url-with-base-001-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-local-url-with-base-001-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-mutated-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-mutated-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-mutated-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-nonexisting-existing-local-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-nonexisting-existing-local-ref.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/reference/reference-nonexisting-existing-local-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<div style="width: 100px; height: 100px; background-color: green"></div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset-ref.html
new file mode 100644
index 0000000000..5ba54fa8a7
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<svg>
+ <circle cx="80" cy="80" r="50" fill="green"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset.html
new file mode 100644
index 0000000000..ec4cbaeb25
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-circle-offset.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<title>CSS Test: circle clip-path on svg graphics element with offset</title>
+<link rel="help" href="https://crbug.com/1286412">
+<link rel="help" href="https://drafts.fxtf.org/css-masking/#the-clip-path">
+<link rel="match" href="svg-clip-path-circle-offset-ref.html">
+<!-- Allow antialised pixel differences along the edge of the circle -->
+<meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-420">
+<svg>
+ <rect x="30" y="30" width="100" height="100" fill="green" style="clip-path: circle(50%)"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset-ref.html
new file mode 100644
index 0000000000..75b867ff19
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset-ref.html
@@ -0,0 +1,4 @@
+<!DOCTYPE html>
+<svg>
+ <ellipse cx="80" cy="80" rx="40" ry="50" fill="green"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset.html
new file mode 100644
index 0000000000..2b0876eb58
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-ellipse-offset.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<title>CSS Test: ellipse clip-path on svg graphics element with offset</title>
+<link rel="help" href="https://crbug.com/1286412">
+<link rel="help" href="https://drafts.fxtf.org/css-masking/#the-clip-path">
+<link rel="match" href="svg-clip-path-ellipse-offset-ref.html">
+<!-- Allow antialised pixel differences along the edge of the ellipse -->
+<meta name="fuzzy" content="maxDifference=0-69; totalPixels=0-394">
+<svg>
+ <rect x="30" y="30" width="100" height="100" fill="green" style="clip-path: ellipse(40% 50%)"/>
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values-ref.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values-ref.html
new file mode 100644
index 0000000000..537b77d30a
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values-ref.html
@@ -0,0 +1,49 @@
+<!doctype html>
+<style>
+svg {
+ width: 300px;
+ height: 300px;
+}
+.container {
+ width: 300px;
+ height: 300px;
+ position: relative;
+}
+.bg1 {
+ background: green;
+ position: absolute;
+ width: 100px;
+ height: 100px;
+}
+.noclip {
+ top: 100px;
+ left: 100px;
+}
+.cp1 {
+ clip-path: polygon(0px 0px, 100px 0px, 0px 100px);
+ top: 0;
+ left: 0;
+}
+.cp2 {
+ clip-path: circle(50px);
+ top: 200px;
+ left: 0;
+}
+.cp3 {
+ clip-path: ellipse(50px 30px);
+ top: 200px;
+ left: 200px;
+}
+.cp4 {
+ clip-path: inset(10px 20px 30px 40px);
+ top: 0;
+ left: 200px;
+}
+</style>
+<div class=container>
+ <div class="bg1 noclip"></div>
+ <div class="bg1 cp1"></div>
+ <div class="bg1 cp2"></div>
+ <div class="bg1 cp3"></div>
+ <div class="bg1 cp4"></div>
+</div>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values.html b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values.html
new file mode 100644
index 0000000000..eb2c44fbb2
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clip-path-fixed-values.html
@@ -0,0 +1,24 @@
+<!doctype html>
+<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-shapes/#supported-basic-shapes">
+<link rel="match" href="svg-clip-path-fixed-values-ref.html">
+<meta name="fuzzy" content="maxDifference=0-62; totalPixels=0-608">
+<meta name="assert" content="clip-path clips correctly">
+<style>
+svg {
+ width: 300px;
+ height: 300px;
+}
+.bg1 { fill: green; }
+.cp1 { clip-path: polygon(0px 0px, 100px 0px, 0px 100px); }
+.cp2 { clip-path: circle(50px); }
+.cp3 { clip-path: ellipse(50px 30px); }
+.cp4 { clip-path: inset(10px 20px 30px 40px); }
+</style>
+<svg>
+ <rect class="bg1" x="100" y="100" width="100" height="100"/>
+ <rect class="bg1 cp1" x="0" y="0" width="100" height="100"/>
+ <rect class="bg1 cp2" x="0" y="200" width="100" height="100" />
+ <rect class="bg1 cp3" x="200" y="200" width="100" height="100" />
+ <rect class="bg1 cp4" x="200" y="0" width="100" height="100" />
+</svg>
diff --git a/testing/web-platform/tests/css/css-masking/clip-path/svg-clipPath.svg b/testing/web-platform/tests/css/css-masking/clip-path/svg-clipPath.svg
new file mode 100644
index 0000000000..d31a1df42e
--- /dev/null
+++ b/testing/web-platform/tests/css/css-masking/clip-path/svg-clipPath.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<defs>
+ <clipPath id="clip-path-ref-userSpaceOnUse-001">
+ <rect x="50" y="50" width="150px" height="100" />
+ </clipPath>
+</defs>
+</svg> \ No newline at end of file