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Test Info:
- Manifest: layout/base/tests/mochitest.toml
<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<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>