third_party/WebKit/LayoutTests/fast/canvas/OffScreenCanvas-invalid-args.html - Issue 1488763002: Start an empty interface OffScreenCanvas

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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/OffScreenCanvas-invalid-args.html

Issue 1488763002: Start an empty interface OffScreenCanvas (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: update global-interface-listing-expected.txt Created 5 years ago

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	1 <!DOCTYPE html>

	2 <script src="../../resources/js-test.js"></script>

	3 <script>

	4 description("Tests that the OffScreenCanvas can handle invalid arguments");

	5

	6 // Since blink uses signed int internally, this case tests how the constructor

	7 // responds to the arguments that are larger than INT_MAX which would cause

	8 // overflow. The current implementation is expected to clamp.

	9 var setWidth = Math.pow(2, 31);

	10 var setHeight = Math.pow(2, 31);

	11 var obj = {Name: "John Doe", Age: 30};

	12

	13 var canvas1 = new OffScreenCanvas(setWidth, setHeight);

	14 shouldBe("canvas1.width", "setWidth-1");

	15 shouldBe("canvas1.height", "setHeight-1");

	16

	17 canvas1.width = null;

	18 canvas1.height = null;

	19 shouldBe("canvas1.width", "0");

	20 shouldBe("canvas1.height", "0");

	21

	22 shouldThrow("new OffScreenCanvas(-1, -1)");

	23

	24 var canvas2 = new OffScreenCanvas(null, null);

	25 shouldBe("canvas2.width", "0");

	26 shouldBe("canvas2.height", "0");

	27

	28 canvas2.width = setWidth;

	29 canvas2.height = setHeight;

	30 shouldBe("canvas2.width", "setWidth-1");

	31 shouldBe("canvas2.height", "setHeight-1");

	32

	33 shouldThrow("canvas2.width = -1");

	34 shouldThrow("canvas2.height = -1");

	35

	36 shouldThrow("canvas2.width = obj");

	37 shouldThrow("canvas2.height = obj");

	38

	39 shouldThrow("new OffScreenCanvas(obj, obj)");

	40 </script>

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