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https://bugzilla.mozilla.org/show_bug.cgi?id=775852
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<meta charset="utf-8">
<title>Test for Bug 775852</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=775852">Mozilla Bug 775852</a>
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<canvas width="1" height="1" id="c"></canvas>
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<pre id="test">
<script type="application/javascript">
/** Test for Bug 775852 **/
function doTest() {
var gl = $("c").getContext("experimental-webgl");
if (!gl) {
// No WebGL support on MacOS 10.5. Just skip this test
todo(false, "WebGL not supported");
return;
}
var setterCalled = false;
extLength = gl.getSupportedExtensions().length;
ok(extLength > 0,
"This test won't work right if we have no supported extensions");
Object.defineProperty(Array.prototype, "0",
{
set: function(val) {
setterCalled = true;
}
});
// Test that our property got defined correctly
var arr = []
arr[0] = 5;
is(setterCalled, true, "Setter should be called when setting prop on array");
setterCalled = false;
is(gl.getSupportedExtensions().length, extLength,
"We should still have the same number of extensions");
is(setterCalled, false,
"Setter should not be called when getting supported extensions");
}
doTest();
</script>
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