// DO NOT EDIT! This test has been generated by tools/gentest.py. // OffscreenCanvas test in a worker:2d.drawImage.negativedir // Description:Negative dimensions do not affect the direction of the image // Note: importScripts("/resources/testharness.js"); importScripts("/common/canvas-tests.js"); var t = async_test("Negative dimensions do not affect the direction of the image"); t.step(function() { var offscreenCanvas = new OffscreenCanvas(100, 50); var ctx = offscreenCanvas.getContext('2d'); ctx.fillStyle = '#f00'; ctx.fillRect(0, 0, 100, 50); var promise = new Promise(function(resolve, reject) { var xhr = new XMLHttpRequest(); xhr.open("GET", '/images/ggrr-256x256.png'); xhr.responseType = 'blob'; xhr.send(); xhr.onload = function() { resolve(xhr.response); }; }); promise.then(function(response) { ctx.drawImage(response, 0, 178, 50, -100, 0, 0, 50, 100); ctx.drawImage(response, 0, 78, 50, 100, 50, 100, 50, -100); _assertPixelApprox(offscreenCanvas, 1,1, 0,255,0,255, "1,1", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 1,48, 0,255,0,255, "1,48", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 98,1, 0,255,0,255, "98,1", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 98,48, 0,255,0,255, "98,48", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 48,1, 0,255,0,255, "48,1", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 48,48, 0,255,0,255, "48,48", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 51,1, 0,255,0,255, "51,1", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 51,48, 0,255,0,255, "51,48", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 25,25, 0,255,0,255, "25,25", "0,255,0,255", 2); _assertPixelApprox(offscreenCanvas, 75,25, 0,255,0,255, "75,25", "0,255,0,255", 2); }); t.done(); }); done();