mozilla-central/dom/canvas/test/test_bug1215072.html

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Test Info:

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1215072</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 1215072 **/
try {
var gl = document.createElement("canvas")
.getContext("webgl", { get stencil() { throw "bah (webgl)"; } });
ok(!gl, "Either should have thrown or not create a webgl context!");
} catch(ex) {
is(ex, "bah (webgl)", "Should have thrown an exception.");
}
try {
var c = document.createElement("canvas")
.getContext("2d", { get alpha() {throw "bah (2d)"; } });
ok(!c, "Either should have thrown or not create a 2d context!");
} catch(ex) {
is(ex, "bah (2d)", "Should have thrown an exception.");
}
var gl2;
try {
gl2 = document.createElement("canvas").getContext("webgl", false);
gl2 = document.createElement("canvas").getContext("webgl", 123);
gl2 = document.createElement("canvas").getContext("webgl", "");
gl2 = document.createElement("canvas").getContext("webgl", undefined);
gl2 = document.createElement("canvas").getContext("webgl", null);
ok(true, "Shouldn't have thrown an exception!");
} catch(ex) {
ok(false, "Shouldn't have thrown an exception " + ex);
}
var c2;
try {
c2 = document.createElement("canvas").getContext("2d", false);
is(c2.getImageData(1, 1, 1, 1).data[0], 0);
is(c2.getImageData(1, 1, 1, 1).data[1], 0);
is(c2.getImageData(1, 1, 1, 1).data[2], 0);
is(c2.getImageData(1, 1, 1, 1).data[3], 0);
c2 = document.createElement("canvas").getContext("2d", 123);
c2 = document.createElement("canvas").getContext("2d", "");
c2 = document.createElement("canvas").getContext("2d", undefined);
c2 = document.createElement("canvas").getContext("2d", null);
ok(true, "Shouldn't have thrown an exception!");
c2 = document.createElement("canvas").getContext("2d", { alpha: false });
is(c2.getImageData(1, 1, 1, 1).data[0], 0);
is(c2.getImageData(1, 1, 1, 1).data[1], 0);
is(c2.getImageData(1, 1, 1, 1).data[2], 0);
is(c2.getImageData(1, 1, 1, 1).data[3], 255);
} catch(ex) {
ok(false, "Shouldn't have thrown an exception " + ex);
}
</script>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
</body>
</html>