Import 2dcontext Web Platform Tests
[WebKit-https.git] / LayoutTests / imported / w3c / web-platform-tests / 2dcontext / compositing / 2d.composite.uncovered.image.copy.html
1 <!DOCTYPE html>
2 <!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
3 <title>Canvas test: 2d.composite.uncovered.image.copy</title>
4 <script src="/resources/testharness.js"></script>
5 <script src="/resources/testharnessreport.js"></script>
6 <script src="/common/canvas-tests.js"></script>
7 <link rel="stylesheet" href="/common/canvas-tests.css">
8 <body class="show_output">
9
10 <h1>2d.composite.uncovered.image.copy</h1>
11 <p class="desc">drawImage() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</p>
12
13
14 <p class="output">Actual output:</p>
15 <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
16 <p class="output expectedtext">Expected output:<p><img src="2d.composite.uncovered.image.copy.png" class="output expected" id="expected" alt="">
17 <ul id="d"></ul>
18 <script>
19 var t = async_test("drawImage() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.");
20 _addTest(function(canvas, ctx) {
21
22
23 ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
24 ctx.fillRect(0, 0, 100, 50);
25 ctx.globalCompositeOperation = 'copy';
26 ctx.drawImage(document.getElementById('yellow.png'), 40, 40, 10, 10, 40, 50, 10, 10);
27 _assertPixelApprox(canvas, 15,15, 0,0,0,0, "15,15", "0,0,0,0", 5);
28 _assertPixelApprox(canvas, 50,25, 0,0,0,0, "50,25", "0,0,0,0", 5);
29
30
31 });
32 </script>
33 <img src="/images/yellow.png" id="yellow.png" class="resource">
34