From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../reftests/currentScale-change-repaint.html      | 16 ++++++++++
 .../tests/svg/struct/reftests/currentScale.svg     | 11 +++++++
 .../nested-svg-through-display-contents.svg        | 13 ++++++++
 .../struct/reftests/reference/green-100x100.html   |  2 ++
 .../struct/reftests/reference/green-100x100.svg    |  3 ++
 .../reftests/requiredextensions-empty-string.svg   |  6 ++++
 .../requiredextensions-xhtml.tentative.svg         | 12 +++++++
 .../reftests/support/etag-max-age-zero-icons.svg   |  5 +++
 .../support/etag-max-age-zero-icons.svg.headers    |  2 ++
 .../tests/svg/struct/reftests/support/red-rect.svg |  3 ++
 .../tests/svg/struct/reftests/support/sprites.svg  |  3 ++
 .../tests/svg/struct/reftests/use-a.svg            | 12 +++++++
 ...se-adopted-with-external-resource.tentative.svg | 14 ++++++++
 .../tests/svg/struct/reftests/use-cross-origin.svg | 12 +++++++
 .../svg/struct/reftests/use-data-url.tentative.svg |  7 ++++
 ...ernal-resource-with-revalidation.tentative.html | 36 +++++++++++++++++++++
 .../svg/struct/reftests/use-inheritance-001.svg    | 35 ++++++++++++++++++++
 .../reftests/use-inheritance-nth-child-of.svg      | 37 ++++++++++++++++++++++
 .../reftests/use-inheritance-nth-last-child-of.svg | 37 ++++++++++++++++++++++
 .../tests/svg/struct/reftests/use-no-tspan.svg     | 10 ++++++
 .../tests/svg/struct/reftests/use-same-origin.svg  |  6 ++++
 .../reftests/use-svg-dimensions-override-001.svg   | 18 +++++++++++
 .../reftests/use-svg-dimensions-override-002.svg   | 18 +++++++++++
 .../tests/svg/struct/reftests/use-switch.svg       | 12 +++++++
 .../use-symbol-dimensions-override-001.svg         | 18 +++++++++++
 .../use-symbol-dimensions-override-002.svg         | 18 +++++++++++
 26 files changed, 366 insertions(+)
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/currentScale-change-repaint.html
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/currentScale.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/nested-svg-through-display-contents.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.html
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/requiredextensions-empty-string.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/requiredextensions-xhtml.tentative.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg.headers
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/support/red-rect.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/support/sprites.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-a.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-adopted-with-external-resource.tentative.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-cross-origin.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-data-url.tentative.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-external-resource-with-revalidation.tentative.html
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-inheritance-001.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-child-of.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-last-child-of.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-no-tspan.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-same-origin.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-001.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-002.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-switch.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-001.svg
 create mode 100644 testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-002.svg

(limited to 'testing/web-platform/tests/svg/struct/reftests')

diff --git a/testing/web-platform/tests/svg/struct/reftests/currentScale-change-repaint.html b/testing/web-platform/tests/svg/struct/reftests/currentScale-change-repaint.html
new file mode 100644
index 0000000000..aa3939c1be
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/currentScale-change-repaint.html
@@ -0,0 +1,16 @@
+<!doctype HTML>
+<meta charset="utf-8">
+<title>Testcase for changing currentScale on SVG embedded in HTML</title>
+<link rel="help" href="https://www.w3.org/TR/SVG/struct.html#__svg__SVGSVGElement__currentScale">
+<link rel="match" href="reference/green-100x100.html">
+<script>
+  function go() {
+    const mySVG = document.getElementById("mySVG");
+    mySVG.currentScale = 0.5;
+  }
+</script>
+<body onload="go()">
+  <svg id="mySVG">
+    <rect width="100" height="100" fill="green"></rect>
+  </svg>
+</body>
diff --git a/testing/web-platform/tests/svg/struct/reftests/currentScale.svg b/testing/web-platform/tests/svg/struct/reftests/currentScale.svg
new file mode 100644
index 0000000000..926117b6d5
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/currentScale.svg
@@ -0,0 +1,11 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" onload="scaleDown()">
+  <title>Testcase for changing currentScale on SVG embedded in HTML</title>
+  <h:link rel="help" href="https://www.w3.org/TR/SVG/struct.html#__svg__SVGSVGElement__currentScale"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <script>
+    function scaleDown() {
+      document.documentElement.currentScale = 0.5;
+    }
+  </script>
+  <rect width="200" height="200" fill="green"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/nested-svg-through-display-contents.svg b/testing/web-platform/tests/svg/struct/reftests/nested-svg-through-display-contents.svg
new file mode 100644
index 0000000000..1be64d5242
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/nested-svg-through-display-contents.svg
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<svg viewBox="0 0 400 400" width="400" height="400" stroke="none" id="s1"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:h="http://www.w3.org/1999/xhtml">
+ <h:link rel="match" href="reference/green-100x100.svg"/>
+ <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#ForeignNamespaces"/>
+ <rect x="0" y="0" width="100" height="100" fill="green"></rect>
+ <h:div style="display: contents">
+  <svg width="300" height="300">
+   <rect x="5" y="5" width="100" height="100" fill="red"></rect>
+  </svg>
+ </h:div>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.html b/testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.html
new file mode 100644
index 0000000000..f718ea6abf
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/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/svg/struct/reftests/reference/green-100x100.svg b/testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.svg
new file mode 100644
index 0000000000..120941444a
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/reference/green-100x100.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <rect width="100" height="100" fill="green"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/requiredextensions-empty-string.svg b/testing/web-platform/tests/svg/struct/reftests/requiredextensions-empty-string.svg
new file mode 100644
index 0000000000..28f5da4a3e
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/requiredextensions-empty-string.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>requiredExtensions: present but empty attribute evaluates to false</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#RequiredExtensionsAttribute"/>
+  <h:link rel="match" href="../scripted/blank.svg"/>
+  <rect width="100" height="100" fill="red" requiredExtensions=""/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/requiredextensions-xhtml.tentative.svg b/testing/web-platform/tests/svg/struct/reftests/requiredextensions-xhtml.tentative.svg
new file mode 100644
index 0000000000..911f983cab
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/requiredextensions-xhtml.tentative.svg
@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>requiredExtensions: support for HTML/XHTML (non-normative)</title>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <switch>
+    <foreignObject width="100" height="100" requiredExtensions="http://www.w3.org/1999/xhtml">
+      <body xmlns="http://www.w3.org/1999/xhtml" style="margin: 0">
+        <div style="width: 100px; height: 100px; background-color: green"></div>
+      </body>
+    </foreignObject>
+    <rect width="100" height="100" fill="red"/>
+  </switch>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg b/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg
new file mode 100644
index 0000000000..6f7fb0f830
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <symbol id="green-square" viewBox="0 0 16 16">
+    <rect width="16" height="16" fill="green"/>
+  </symbol>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg.headers b/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg.headers
new file mode 100644
index 0000000000..3f0c26c8fe
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/support/etag-max-age-zero-icons.svg.headers
@@ -0,0 +1,2 @@
+ETag: icons
+Cache-Control: max-age=0
diff --git a/testing/web-platform/tests/svg/struct/reftests/support/red-rect.svg b/testing/web-platform/tests/svg/struct/reftests/support/red-rect.svg
new file mode 100644
index 0000000000..1ee578ab6a
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/support/red-rect.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <rect id="red-rect" width="100" height="100" fill="red"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/support/sprites.svg b/testing/web-platform/tests/svg/struct/reftests/support/sprites.svg
new file mode 100644
index 0000000000..f73b885191
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/support/sprites.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+  <rect id="green-rect" width="100" height="100" fill="green"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-a.svg b/testing/web-platform/tests/svg/struct/reftests/use-a.svg
new file mode 100644
index 0000000000..40d4c83f21
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-a.svg
@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>Testing that 'use' can target 'a' elements</title>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <a id="a">
+      <rect width="100" height="100" fill="green"/>
+    </a>
+  </defs>
+  <rect x="10" y="10" width="80" height="80" fill="red"/>
+
+  <use href="#a"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-adopted-with-external-resource.tentative.svg b/testing/web-platform/tests/svg/struct/reftests/use-adopted-with-external-resource.tentative.svg
new file mode 100644
index 0000000000..830d4555e5
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-adopted-with-external-resource.tentative.svg
@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>Adopting a &#x3c;use&#x3e; (from an inactive document) requests an external resource</title>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <script type="text/plain" template=""><![CDATA[
+    <svg xmlns="http://www.w3.org/2000/svg">
+      <use href="support/sprites.svg#green-rect"/>
+    </svg>]]>
+  </script>
+  <script>
+    let text = document.querySelector('script[template]').textContent;
+    let doc = new DOMParser().parseFromString(text, 'image/svg+xml');
+    document.documentElement.appendChild(doc.documentElement);
+  </script>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-cross-origin.svg b/testing/web-platform/tests/svg/struct/reftests/use-cross-origin.svg
new file mode 100644
index 0000000000..3de069c8d1
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-cross-origin.svg
@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>&#x3c;use&#x3e; with a cross-origin resource</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElementHrefAttribute"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <rect width="100" height="100" fill="green"/>
+  <script>
+    const svg = document.querySelector('svg');
+    const use = document.createElementNS('http://www.w3.org/2000/svg', 'use');
+    use.setAttribute('href', location.href.replace('://', '://www1.') + '/../support/red-rect.svg#red-rect');
+    svg.appendChild(use);
+  </script>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-data-url.tentative.svg b/testing/web-platform/tests/svg/struct/reftests/use-data-url.tentative.svg
new file mode 100644
index 0000000000..04414030a3
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-data-url.tentative.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>&#x3c;use&#x3e; with a data: URL resource</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElementHrefAttribute"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <rect width="100" height="100" fill="green"/>
+  <use href="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPgogIDxyZWN0IGlkPSJyZWQtcmVjdCIgd2lkdGg9IjEwMCIgaGVpZ2h0PSIxMDAiIGZpbGw9InJlZCIvPgo8L3N2Zz4=#red-rect"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-external-resource-with-revalidation.tentative.html b/testing/web-platform/tests/svg/struct/reftests/use-external-resource-with-revalidation.tentative.html
new file mode 100644
index 0000000000..d899165fa9
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-external-resource-with-revalidation.tentative.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>Multiple &lt;use> referencing same external resource, with revalidation required</title>
+<link rel="match" href="reference/green-100x100.html">
+<svg>
+  <rect width="100" height="100" fill="red"/>
+</svg>
+<script>
+  let container = document.querySelector('svg');
+  function makeUse(x) {
+    let use = document.createElementNS('http://www.w3.org/2000/svg', 'use');
+    use.setAttribute('href', 'support/etag-max-age-zero-icons.svg#green-square');
+    use.setAttribute('x', x);
+    use.setAttribute('width', 50);
+    use.setAttribute('height', 50);
+    use.setAttribute('transform', 'scale(1, 2)');
+    return use;
+  }
+  function insertFirstUse() {
+    let use = makeUse(0);
+    use.onload = insertSecondUse;
+    container.appendChild(use);
+  }
+  function insertSecondUse() {
+    let use = makeUse(50);
+    use.onload = endTest;
+    container.appendChild(use);
+    document.body.offsetTop;
+  }
+  function endTest() {
+    document.documentElement.classList.remove('reftest-wait');
+  }
+  onload = function() {
+    requestAnimationFrame(insertFirstUse);
+  };
+</script>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-inheritance-001.svg b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-001.svg
new file mode 100644
index 0000000000..5e375b94cd
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-001.svg
@@ -0,0 +1,35 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>Use property inheritance in SVG2</title>
+  <metadata>
+    <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseStyleInheritance"/>
+    <h:link rel="match" href="reference/green-100x100.svg"/>
+    <h:link rel="author" title="Mike Bremford" href="http://bfo.com"/>
+  </metadata>
+  <style>
+  use rect { stroke: red }
+  .container rect { fill: red; stroke: red }
+  rect { stroke-width: 40px; stroke: green }
+  rect:root { opacity: 0 }
+  </style>
+  <defs>
+    <g class="container">
+      <rect id="r" x="20" y="20" width="60" height="60" style="fill-opacity:1"/>
+    </g>
+  </defs>
+  <g>
+    <use href="#r" xlink:href="#r" style="fill: green; fill-opacity:0"/>
+  </g>
+  <!--
+  This presume the SVG2 use inheritance rules, in SVG1 it will display as red.
+
+  1. The "rect" cloned by the "use" element is in a shadow DOM, so it DOES NOT
+     inherit the stroke from the "use rect" or ".container rect" style rules.
+  2. The cloned "rect" DOES get the rules set by the "rect" style rule, as that
+     still matches elements in the shadow DOM.
+  3. The "rect" DOES inherit "fill: green" from the <use>
+  4. The "rect"'s own "fill-opacity: 1" overrides the "fill-opacity: 0" inherited
+     from the "use" element.
+  5. Even though "rect" is considered to have no parent, it is not a root element
+     so does not match the rect:root style rule
+  -->
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-child-of.svg b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-child-of.svg
new file mode 100644
index 0000000000..1c4a395407
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-child-of.svg
@@ -0,0 +1,37 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>Use property inheritance with :nth-child(... of &lt;selector list&gt;) in SVG2</title>
+  <metadata>
+    <h:link rel="match" href="reference/green-100x100.svg"/>
+    <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseStyleInheritance"/>
+    <h:link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1821258"/>
+    <h:link rel="author" title="Zach Hoffman" href="mailto:zach@zrhoffman.net"/>
+  </metadata>
+  <style>
+  :nth-child(n of use rect) { stroke: red }
+  :nth-child(n of .container rect) { fill: red; stroke: red }
+  rect { stroke-width: 40px; stroke: green }
+  rect:root { opacity: 0 }
+  </style>
+  <defs>
+    <g class="container">
+      <rect id="r" x="20" y="20" width="60" height="60" style="fill-opacity:1"/>
+    </g>
+  </defs>
+  <g>
+    <use href="#r" xlink:href="#r" style="fill: green; fill-opacity:0"/>
+  </g>
+  <!--
+  This presumes the SVG2 use inheritance rules, in SVG1 it will display as red.
+
+  1. The "rect" cloned by the "use" element is in a shadow DOM, so it DOES NOT
+     inherit the stroke from the ":nth-child(n of use rect)" or
+     ":nth-child(n of .container rect)" style rules.
+  2. The cloned "rect" DOES get the rules set by the "rect" style rule, as that
+     still matches elements in the shadow DOM.
+  3. The "rect" DOES inherit "fill: green" from the <use>
+  4. The "rect"'s own "fill-opacity: 1" overrides the "fill-opacity: 0" inherited
+     from the "use" element.
+  5. Even though "rect" is considered to have no parent, it is not a root element
+     so does not match the rect:root style rule
+  -->
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-last-child-of.svg b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-last-child-of.svg
new file mode 100644
index 0000000000..229be9cbf9
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-inheritance-nth-last-child-of.svg
@@ -0,0 +1,37 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>Use property inheritance with :nth-last-child(... of &lt;selector list&gt;) in SVG2</title>
+  <metadata>
+    <h:link rel="match" href="reference/green-100x100.svg"/>
+    <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseStyleInheritance"/>
+    <h:link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1821258"/>
+    <h:link rel="author" title="Zach Hoffman" href="mailto:zach@zrhoffman.net"/>
+  </metadata>
+  <style>
+  :nth-last-child(n of use rect) { stroke: red }
+  :nth-last-child(n of .container rect) { fill: red; stroke: red }
+  rect { stroke-width: 40px; stroke: green }
+  rect:root { opacity: 0 }
+  </style>
+  <defs>
+    <g class="container">
+      <rect id="r" x="20" y="20" width="60" height="60" style="fill-opacity:1"/>
+    </g>
+  </defs>
+  <g>
+    <use href="#r" xlink:href="#r" style="fill: green; fill-opacity:0"/>
+  </g>
+  <!--
+  This presumes the SVG2 use inheritance rules, in SVG1 it will display as red.
+
+  1. The "rect" cloned by the "use" element is in a shadow DOM, so it DOES NOT
+     inherit the stroke from the ":nth-last-child(n of use rect)" or
+     ":nth-last-child(n of .container rect)" style rules.
+  2. The cloned "rect" DOES get the rules set by the "rect" style rule, as that
+     still matches elements in the shadow DOM.
+  3. The "rect" DOES inherit "fill: green" from the <use>
+  4. The "rect"'s own "fill-opacity: 1" overrides the "fill-opacity: 0" inherited
+     from the "use" element.
+  5. Even though "rect" is considered to have no parent, it is not a root element
+     so does not match the rect:root style rule
+  -->
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-no-tspan.svg b/testing/web-platform/tests/svg/struct/reftests/use-no-tspan.svg
new file mode 100644
index 0000000000..5368ca343c
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-no-tspan.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>Testing that 'use' cannot make 'tspan' elements visible</title>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <text><tspan id="t" x="20" y="100" fill="red" font-size="36">Should not see this</tspan></text>
+  </defs>
+  <rect width="100" height="100" fill="green"/>
+
+  <use href="#t"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-same-origin.svg b/testing/web-platform/tests/svg/struct/reftests/use-same-origin.svg
new file mode 100644
index 0000000000..0aa1ec83af
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-same-origin.svg
@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <title>&#x3c;use&#x3e; with a same-origin resource</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseElementHrefAttribute"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <use href="support/sprites.svg#green-rect"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-001.svg b/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-001.svg
new file mode 100644
index 0000000000..c658adce80
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-001.svg
@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+     xmlns:h="http://www.w3.org/1999/xhtml" width="800" height="600">
+  <title>'width' and 'height' from &#x3c;use&#x3e; overrides values on referenced &#x3c;svg&#x3e;</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseLayout"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <svg id="s" width="10" height="10">
+      <rect width="100%" height="100%" fill="green"/>
+    </svg>
+  </defs>
+  <rect width="100" height="100" fill="red"/>
+  <svg width="1" height="1" overflow="visible">
+    <use xlink:href="#s" x="90" y="90"/>
+    <use xlink:href="#s" y="90" width="90"/>
+    <use xlink:href="#s" x="90" height="90"/>
+    <use xlink:href="#s" width="90" height="90"/>
+  </svg>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-002.svg b/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-002.svg
new file mode 100644
index 0000000000..6c3f97b8dc
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-svg-dimensions-override-002.svg
@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+     xmlns:h="http://www.w3.org/1999/xhtml" width="800" height="600">
+  <title>'width' and 'height' from &#x3c;use&#x3e; overrides values on referenced &#x3c;svg&#x3e;</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseLayout"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <svg id="s">
+      <rect width="100%" height="100%" fill="green"/>
+    </svg>
+  </defs>
+  <rect width="100" height="100" fill="red"/>
+  <svg width="10" height="10" overflow="visible">
+    <use xlink:href="#s" x="90" y="90"/>
+    <use xlink:href="#s" y="90" width="90"/>
+    <use xlink:href="#s" x="90" height="90"/>
+    <use xlink:href="#s" width="90" height="90"/>
+  </svg>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-switch.svg b/testing/web-platform/tests/svg/struct/reftests/use-switch.svg
new file mode 100644
index 0000000000..6c01c30198
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-switch.svg
@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:h="http://www.w3.org/1999/xhtml">
+  <title>Testing that 'use' can target 'switch' elements</title>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <switch id="s">
+      <rect width="100" height="100" fill="green"/>
+    </switch>
+  </defs>
+  <rect x="10" y="10" width="80" height="80" fill="red"/>
+
+  <use href="#s"/>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-001.svg b/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-001.svg
new file mode 100644
index 0000000000..1f8f714147
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-001.svg
@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+     xmlns:h="http://www.w3.org/1999/xhtml" width="800" height="600">
+  <title>'width' and 'height' from &#x3c;use&#x3e; overrides values on referenced &#x3c;symbol&#x3e;</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseLayout"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <symbol id="s" width="10" height="10">
+      <rect width="100%" height="100%" fill="green"/>
+    </symbol>
+  </defs>
+  <rect width="100" height="100" fill="red"/>
+  <svg width="1" height="1" overflow="visible">
+    <use xlink:href="#s" x="90" y="90"/>
+    <use xlink:href="#s" y="90" width="90"/>
+    <use xlink:href="#s" x="90" height="90"/>
+    <use xlink:href="#s" width="90" height="90"/>
+  </svg>
+</svg>
diff --git a/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-002.svg b/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-002.svg
new file mode 100644
index 0000000000..9c1fd49083
--- /dev/null
+++ b/testing/web-platform/tests/svg/struct/reftests/use-symbol-dimensions-override-002.svg
@@ -0,0 +1,18 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+     xmlns:h="http://www.w3.org/1999/xhtml" width="800" height="600">
+  <title>'width' and 'height' from &#x3c;use&#x3e; overrides values on referenced &#x3c;symbol&#x3e;</title>
+  <h:link rel="help" href="https://svgwg.org/svg2-draft/struct.html#UseLayout"/>
+  <h:link rel="match" href="reference/green-100x100.svg"/>
+  <defs>
+    <symbol id="s">
+      <rect width="100%" height="100%" fill="green"/>
+    </symbol>
+  </defs>
+  <rect width="100" height="100" fill="red"/>
+  <svg width="10" height="10" overflow="visible">
+    <use xlink:href="#s" x="90" y="90"/>
+    <use xlink:href="#s" y="90" width="90"/>
+    <use xlink:href="#s" x="90" height="90"/>
+    <use xlink:href="#s" width="90" height="90"/>
+  </svg>
+</svg>
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