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29 lines
916 B
JavaScript
29 lines
916 B
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
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// OffscreenCanvas test in a worker:2d.clearRect.negative
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// Description:clearRect of negative sizes works
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// Note:
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importScripts("/resources/testharness.js");
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importScripts("/common/canvas-tests.js");
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var t = async_test("clearRect of negative sizes works");
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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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ctx.fillStyle = '#f00';
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ctx.fillRect(0, 0, 100, 50);
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ctx.clearRect(0, 0, 50, 25);
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ctx.clearRect(100, 0, -50, 25);
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ctx.clearRect(0, 50, 50, -25);
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ctx.clearRect(100, 50, -50, -25);
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_assertPixel(offscreenCanvas, 25,12, 0,0,0,0, "25,12", "0,0,0,0");
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_assertPixel(offscreenCanvas, 75,12, 0,0,0,0, "75,12", "0,0,0,0");
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_assertPixel(offscreenCanvas, 25,37, 0,0,0,0, "25,37", "0,0,0,0");
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_assertPixel(offscreenCanvas, 75,37, 0,0,0,0, "75,37", "0,0,0,0");
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t.done();
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});
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done();
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