2d.drawImage.nowrap.worker.js

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This WPT test may be referenced by the following Test IDs:
- /html/canvas/offscreen/drawing-images-to-the-canvas/2d.drawImage.nowrap.worker.html - WPT Dashboard Interop Dashboard

// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.

// OffscreenCanvas test in a worker:2d.drawImage.nowrap

// Description:Stretched images do not get pixels wrapping around the edges

// Note:

importScripts("/resources/testharness.js");

importScripts("/html/canvas/resources/canvas-tests.js");

promise_test(async t => {

  var canvas = new OffscreenCanvas(100, 50);

  var ctx = canvas.getContext('2d');

  ctx.fillStyle = '#0f0';

  ctx.fillRect(0, 0, 100, 50);

  const response = await fetch('/images/redtransparent.png');

  const blob = await response.blob();

  const bitmap = await createImageBitmap(blob);

  ctx.drawImage(bitmap, -1950, 0, 2000, 50);

  _assertPixelApprox(canvas, 45,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);

  _assertPixelApprox(canvas, 55,25, 0,255,0,255, 2);

}, "Stretched images do not get pixels wrapping around the edges");

done();