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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /layout/base/tests/test_bug435293-skew.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=435293
+-->
+<head>
+ <title>Test for Bug 435293</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+ <style>
+ /* Skewed boxes can get very big. The .pane wrapper prevents them
+ from obscuring the test results. */
+ .pane {
+ height: 300px;
+ width: 300px;
+ float: left;
+ overflow: auto;
+ border: 1px solid black;
+ }
+ .test {
+ background: green;
+ height: 100px;
+ width: 100px;
+ margin: 100px;
+ }
+
+ /* Radian units are not used in this test because our CSS
+ implementation stores all dimensional values in single-
+ precision floating point, which makes it impossible to
+ hit mathematically interesting angles with radians.
+ Degrees and grads do not suffer this problem. */
+ #test1 {
+ transform: skewx(30deg);
+ }
+ #test2 {
+ transform: skewy(60deg);
+ }
+ #test3 {
+ transform: skew(45deg, 45deg);
+ }
+ #test4 {
+ transform: skew(360deg, 45deg);
+ }
+ #test5 {
+ transform: skew(45deg, 150grad);
+ }
+ #test6 {
+ transform: skew(80%, 78px);
+ }
+ #test7 {
+ transform: skew(2em, 40ex);
+ }
+ #test8 {
+ transform: skew(-45deg, -465deg);
+ }
+ #test9 {
+ transform: skew(30deg, 30deg, 30deg);
+ }
+
+ /* approach the singularity from the negative side */
+ #test10 {
+ transform: skew(50grad, 90.001deg);
+ }
+ #test11 {
+ transform: skew(300grad, 90.001deg);
+ }
+ </style>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435293">Mozilla Bug 435293</a>
+<p id="display"></p>
+<div id="content">
+ <div class="pane"><div id="test1" class="test">test</div></div>
+ <div class="pane"><p id="test2" class="test">test</p></div>
+ <div class="pane"><div id="test3" class="test">test</div></div>
+ <div class="pane"><div id="test4" class="test">test</div></div>
+ <div class="pane"><div id="test5" class="test">test</div></div>
+ <div class="pane"><div id="test6" class="test">test</div></div>
+ <div class="pane"><div id="test7" class="test">test</div></div>
+ <div class="pane"><div id="test8" class="test">test</div></div>
+ <div class="pane"><div id="test9" class="test">test</div></div>
+ <div class="pane"><div id="test10" class="test">test</div></div>
+ <div class="pane"><div id="test11" class="test">test</div></div>
+</div>
+
+<pre id="test">
+<script type="application/javascript">
+runtests();
+
+function runtests() {
+ // For test 1 we need to handle the contingency that different systems may
+ // round differently. We will parse out the values and compare them
+ // individually. The matrix should be: matrix(1, 0, 0.57735, 1, 0, 0)
+ var style = window.getComputedStyle(document.getElementById("test1"));
+ var tformStyle = style.getPropertyValue("transform");
+ var tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
+ tformStyle.indexOf(')')).split(',');
+ is((+tformValues[0]), 1, "Test1: skewx: param 0 is 1");
+ is((+tformValues[1]), 0, "Test1: skewx: param 1 is 0");
+ ok(verifyRounded(tformValues[2], 0.57735), "Test1: skewx: Rounded param 2 is in bounds");
+ is((+tformValues[3]), 1, "Test1: skewx: param 3 is 1");
+ is((+tformValues[4]), 0, "Test1: skewx: param 4 is 0");
+ is((+tformValues[5]), 0, "Test1: skewx: param 5 is 0");
+
+ // Again, handle rounding for test 2, proper matrix should be:
+ // matrix(1, 1.73205, 0, 1, 0, 0)
+ style = window.getComputedStyle(document.getElementById("test2"));
+ tformStyle = style.getPropertyValue("transform");
+ tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
+ tformStyle.indexOf(')')).split(',');
+ is((+tformValues[0]), 1, "Test2: skewy: param 0 is 1");
+ ok(verifyRounded(tformValues[1], 1.73205), "Test2: skewy: Rounded param 1 is in bounds");
+ is((+tformValues[2]), 0, "Test2: skewy: param 2 is 0");
+ is((+tformValues[3]), 1, "Test2: skewy: param 3 is 1");
+ is((+tformValues[4]), 0, "Test2: skewy: param 4 is 0");
+ is((+tformValues[5]), 0, "Test2: skewy: param 5 is 0");
+
+ style = window.getComputedStyle(document.getElementById("test3"));
+ is(style.getPropertyValue("transform"), "matrix(1, 1, 1, 1, 0, 0)",
+ "Test3: Skew proper matrix is applied");
+
+ style = window.getComputedStyle(document.getElementById("test4"));
+ is(style.getPropertyValue("transform"), "matrix(1, 1, 0, 1, 0, 0)",
+ "Test4: Skew angle wrap: proper matrix is applied");
+
+ style = window.getComputedStyle(document.getElementById("test5"));
+ is(style.getPropertyValue("transform"), "matrix(1, -1, 1, 1, 0, 0)",
+ "Test5: Skew mixing deg and grad");
+
+ style = window.getComputedStyle(document.getElementById("test6"));
+ is(style.getPropertyValue("transform"), "none",
+ "Test6: Skew with invalid units");
+
+ style = window.getComputedStyle(document.getElementById("test7"));
+ is(style.getPropertyValue("transform"), "none",
+ "Test7: Skew with more invalid units");
+
+ // Test 8: skew with negative degrees, here again we must handle rounding.
+ // The matrix should be: matrix(1, 3.73206, -1, 1, 0, 0)
+ style = window.getComputedStyle(document.getElementById("test8"));
+ tformStyle = style.getPropertyValue("transform");
+ tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
+ tformStyle.indexOf(')')).split(',');
+ is((+tformValues[0]), 1, "Test8: Test skew with negative degrees-param 0 is 1");
+ ok(verifyRounded(tformValues[1], 3.73206), "Test8: Rounded param 1 is in bounds");
+ is((+tformValues[2]), -1, "Test8: param 2 is -1");
+ is((+tformValues[3]), 1, "Test8: param 3 is 1");
+ is((+tformValues[4]), 0, "Test8: param 4 is 0");
+ is((+tformValues[5]), 0, "Test8: param 5 is 0");
+
+ style = window.getComputedStyle(document.getElementById("test9"));
+ is(style.getPropertyValue("transform"), "none",
+ "Test9: Skew in 3d should be ignored");
+
+ style = window.getComputedStyle(document.getElementById("test10"));
+ is(style.getPropertyValue("transform"), "matrix(1, -10000, 1, 1, 0, 0)",
+ "Test10: Skew with nearly infinite numbers");
+
+ style = window.getComputedStyle(document.getElementById("test11"));
+ is(style.getPropertyValue("transform"), "matrix(1, -10000, 10000, 1, 0, 0)",
+ "Test11: Skew with more infinite numbers");
+}
+
+// Verifies that aVal is +/- 0.00001 of aTrueVal
+// Returns true if so, false if not
+function verifyRounded(aVal, aTrueVal) {
+ return (Math.abs(aVal - aTrueVal).toFixed(5) <= 0.00001);
+}
+</script>
+</pre>
+</body>
+</html>
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