<!DOCTYPE html> <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. --> <title>Canvas test: 2d.composite.uncovered.pattern.destination-atop</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/common/canvas-tests.js"></script> <link rel="stylesheet" href="/common/canvas-tests.css"> <body class="show_output"> <h1>2d.composite.uncovered.pattern.destination-atop</h1> <p class="desc">Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</p> <p class="output">Actual output:</p> <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> <p class="output expectedtext">Expected output:<p><img src="2d.composite.uncovered.pattern.destination-atop.png" class="output expected" id="expected" alt=""> <ul id="d"></ul> <script> var t = async_test("Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged."); _addTest(function(canvas, ctx) { ctx.fillStyle = 'rgba(0, 255, 255, 0.5)'; ctx.fillRect(0, 0, 100, 50); ctx.globalCompositeOperation = 'destination-atop'; ctx.fillStyle = ctx.createPattern(document.getElementById('yellow.png'), 'no-repeat'); ctx.fillRect(0, 50, 100, 50); _assertPixelApprox(canvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5); }); </script> <img src="/images/yellow.png" id="yellow.png" class="resource">