1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/base/tests/test_bug435293-skew.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,173 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=435293
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 435293</title>
1.11 + <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
1.13 +
1.14 + <style>
1.15 + /* Skewed boxes can get very big. The .pane wrapper prevents them
1.16 + from obscuring the test results. */
1.17 + .pane {
1.18 + height: 300px;
1.19 + width: 300px;
1.20 + float: left;
1.21 + overflow: auto;
1.22 + border: 1px solid black;
1.23 + }
1.24 + .test {
1.25 + background: green;
1.26 + height: 100px;
1.27 + width: 100px;
1.28 + margin: 100px;
1.29 + }
1.30 +
1.31 + /* Radian units are not used in this test because our CSS
1.32 + implementation stores all dimensional values in single-
1.33 + precision floating point, which makes it impossible to
1.34 + hit mathematically interesting angles with radians.
1.35 + Degrees and grads do not suffer this problem. */
1.36 + #test1 {
1.37 + -moz-transform: skewx(30deg);
1.38 + }
1.39 + #test2 {
1.40 + -moz-transform: skewy(60deg);
1.41 + }
1.42 + #test3 {
1.43 + -moz-transform: skew(45deg, 45deg);
1.44 + }
1.45 + #test4 {
1.46 + -moz-transform: skew(360deg, 45deg);
1.47 + }
1.48 + #test5 {
1.49 + -moz-transform: skew(45deg, 150grad);
1.50 + }
1.51 + #test6 {
1.52 + -moz-transform: skew(80%, 78px);
1.53 + }
1.54 + #test7 {
1.55 + -moz-transform: skew(2em, 40ex);
1.56 + }
1.57 + #test8 {
1.58 + -moz-transform: skew(-45deg, -465deg);
1.59 + }
1.60 + #test9 {
1.61 + -moz-transform: skew(30deg, 30deg, 30deg);
1.62 + }
1.63 +
1.64 + /* approach the singularity from the negative side */
1.65 + #test10 {
1.66 + -moz-transform: skew(50grad, 90.001deg);
1.67 + }
1.68 + #test11 {
1.69 + -moz-transform: skew(300grad, 90.001deg);
1.70 + }
1.71 + </style>
1.72 +</head>
1.73 +<body>
1.74 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=435293">Mozilla Bug 435293</a>
1.75 +<p id="display"></p>
1.76 +<div id="content">
1.77 + <div class="pane"><div id="test1" class="test">test</div></div>
1.78 + <div class="pane"><p id="test2" class="test">test</p></div>
1.79 + <div class="pane"><div id="test3" class="test">test</div></div>
1.80 + <div class="pane"><div id="test4" class="test">test</div></div>
1.81 + <div class="pane"><div id="test5" class="test">test</div></div>
1.82 + <div class="pane"><div id="test6" class="test">test</div></div>
1.83 + <div class="pane"><div id="test7" class="test">test</div></div>
1.84 + <div class="pane"><div id="test8" class="test">test</div></div>
1.85 + <div class="pane"><div id="test9" class="test">test</div></div>
1.86 + <div class="pane"><div id="test10" class="test">test</div></div>
1.87 + <div class="pane"><div id="test11" class="test">test</div></div>
1.88 +</div>
1.89 +
1.90 +<pre id="test">
1.91 +<script type="application/javascript">
1.92 +runtests();
1.93 +
1.94 +function runtests() {
1.95 + // For test 1 we need to handle the contingency that different systems may
1.96 + // round differently. We will parse out the values and compare them
1.97 + // individually. The matrix should be: matrix(1, 0, 0.57735, 1, 0, 0)
1.98 + var style = window.getComputedStyle(document.getElementById("test1"), "");
1.99 + var tformStyle = style.getPropertyValue("-moz-transform");
1.100 + var tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
1.101 + tformStyle.indexOf(')')).split(',');
1.102 + is((+tformValues[0]), 1, "Test1: skewx: param 0 is 1");
1.103 + is((+tformValues[1]), 0, "Test1: skewx: param 1 is 0");
1.104 + ok(verifyRounded(tformValues[2], 0.57735), "Test1: skewx: Rounded param 2 is in bounds");
1.105 + is((+tformValues[3]), 1, "Test1: skewx: param 3 is 1");
1.106 + is((+tformValues[4]), 0, "Test1: skewx: param 4 is 0");
1.107 + is((+tformValues[5]), 0, "Test1: skewx: param 5 is 0");
1.108 +
1.109 + // Again, handle rounding for test 2, proper matrix should be:
1.110 + // matrix(1, 1.73205, 0, 1, 0, 0)
1.111 + style = window.getComputedStyle(document.getElementById("test2"), "");
1.112 + tformStyle = style.getPropertyValue("-moz-transform");
1.113 + tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
1.114 + tformStyle.indexOf(')')).split(',');
1.115 + is((+tformValues[0]), 1, "Test2: skewy: param 0 is 1");
1.116 + ok(verifyRounded(tformValues[1], 1.73205), "Test2: skewy: Rounded param 1 is in bounds");
1.117 + is((+tformValues[2]), 0, "Test2: skewy: param 2 is 0");
1.118 + is((+tformValues[3]), 1, "Test2: skewy: param 3 is 1");
1.119 + is((+tformValues[4]), 0, "Test2: skewy: param 4 is 0");
1.120 + is((+tformValues[5]), 0, "Test2: skewy: param 5 is 0");
1.121 +
1.122 + style = window.getComputedStyle(document.getElementById("test3"), "");
1.123 + is(style.getPropertyValue("-moz-transform"), "matrix(1, 1, 1, 1, 0, 0)",
1.124 + "Test3: Skew proper matrix is applied");
1.125 +
1.126 + style = window.getComputedStyle(document.getElementById("test4"), "");
1.127 + is(style.getPropertyValue("-moz-transform"), "matrix(1, 1, 0, 1, 0, 0)",
1.128 + "Test4: Skew angle wrap: proper matrix is applied");
1.129 +
1.130 + style = window.getComputedStyle(document.getElementById("test5"), "");
1.131 + is(style.getPropertyValue("-moz-transform"), "matrix(1, -1, 1, 1, 0, 0)",
1.132 + "Test5: Skew mixing deg and grad");
1.133 +
1.134 + style = window.getComputedStyle(document.getElementById("test6"), "");
1.135 + is(style.getPropertyValue("-moz-transform"), "none",
1.136 + "Test6: Skew with invalid units");
1.137 +
1.138 + style = window.getComputedStyle(document.getElementById("test7"), "");
1.139 + is(style.getPropertyValue("-moz-transform"), "none",
1.140 + "Test7: Skew with more invalid units");
1.141 +
1.142 + // Test 8: skew with negative degrees, here again we must handle rounding.
1.143 + // The matrix should be: matrix(1, 3.73206, -1, 1, 0, 0)
1.144 + style = window.getComputedStyle(document.getElementById("test8"), "");
1.145 + tformStyle = style.getPropertyValue("-moz-transform");
1.146 + tformValues = tformStyle.substring(tformStyle.indexOf('(') + 1,
1.147 + tformStyle.indexOf(')')).split(',');
1.148 + is(tformValues[0], 1, "Test8: Test skew with negative degrees-param 0 is 1");
1.149 + ok(verifyRounded(tformValues[1], 3.73206), "Test8: Rounded param 1 is in bounds");
1.150 + is((+tformValues[2]), -1, "Test8: param 2 is -1");
1.151 + is((+tformValues[3]), 1, "Test8: param 3 is 1");
1.152 + is((+tformValues[4]), 0, "Test8: param 4 is 0");
1.153 + is((+tformValues[5]), 0, "Test8: param 5 is 0");
1.154 +
1.155 + style = window.getComputedStyle(document.getElementById("test9"), "");
1.156 + is(style.getPropertyValue("-moz-transform"), "none",
1.157 + "Test9: Skew in 3d should be ignored");
1.158 +
1.159 + style = window.getComputedStyle(document.getElementById("test10"), "");
1.160 + is(style.getPropertyValue("-moz-transform"), "matrix(1, -10000, 1, 1, 0, 0)",
1.161 + "Test10: Skew with nearly infinite numbers");
1.162 +
1.163 + style = window.getComputedStyle(document.getElementById("test11"), "");
1.164 + is(style.getPropertyValue("-moz-transform"), "matrix(1, -10000, 10000, 1, 0, 0)",
1.165 + "Test11: Skew with more infinite numbers");
1.166 +}
1.167 +
1.168 +// Verifies that aVal is +/- 0.00001 of aTrueVal
1.169 +// Returns true if so, false if not
1.170 +function verifyRounded(aVal, aTrueVal) {
1.171 + return (Math.abs(aVal - aTrueVal).toFixed(5) <= 0.00001);
1.172 +}
1.173 +</script>
1.174 +</pre>
1.175 +</body>
1.176 +</html>
