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29 lines
998 B
HTML
29 lines
998 B
HTML
<!DOCTYPE html>
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<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
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<title>OffscreenCanvas test: 2d.gradient.object.invalidoffset</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/canvas-tests.js"></script>
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<h1>2d.gradient.object.invalidoffset</h1>
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<p class="desc"></p>
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<script>
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var t = async_test("");
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t.step(function() {
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var offscreenCanvas = new OffscreenCanvas(100, 50);
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var ctx = offscreenCanvas.getContext('2d');
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var g = ctx.createLinearGradient(0, 0, 100, 0);
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assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(-1, '#000'); });
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assert_throws("INDEX_SIZE_ERR", function() { g.addColorStop(2, '#000'); });
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assert_throws(new TypeError(), function() { g.addColorStop(Infinity, '#000'); });
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assert_throws(new TypeError(), function() { g.addColorStop(-Infinity, '#000'); });
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assert_throws(new TypeError(), function() { g.addColorStop(NaN, '#000'); });
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t.done();
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});
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</script>
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