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Issue 2679083003: Use testharness.js instead of js-test.js in LayoutTests/fast/canvas tests. (Closed)
Patch Set: Adding virtual/gpu/fast/canvas/canvas-imageSmoothingQuality.html to TestExpectations Created 3 years, 10 months ago
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1 <!DOCTYPE html> 1 <script src="../../resources/testharness.js"></script>
2 <html> 2 <script src="../../resources/testharnessreport.js"></script>
3 <head> 3 <script>
4 <script src="../../resources/js-test.js"></script> 4 test(function(t) {
5 </head> 5
6 <body> 6 var ctx = document.createElement('canvas').getContext('2d');
7 <script src="script-tests/canvas-imageSmoothingEnabled.js"></script> 7 assert_equals(ctx.imageSmoothingEnabled, true);
8
9 ctx.imageSmoothingEnabled = false;
10 assert_equals(ctx.imageSmoothingEnabled, false);
11
12 ctx.save();
13 ctx.imageSmoothingEnabled = true;
14 ctx.restore();
15 assert_equals(ctx.imageSmoothingEnabled, false);
16
17 var image = document.createElement('canvas');
18 image.width = 2;
19 image.height = 1;
20
21 // We use this to color the individual pixels
22 var dotter = ctx.createImageData(1, 1);
23
24 // Color the left pixel black.
25 dotter.data.fill(0);
26 dotter.data[3] = 255;
27 image.getContext('2d').putImageData(dotter, 0, 0);
28
29 // Color the right pixel white.
30 dotter.data.fill(255);
31 image.getContext('2d').putImageData(dotter, 1, 0);
32
33 var canvas = document.createElement('canvas');
34 canvas.width = 4;
35 canvas.height = 1;
36 ctx = canvas.getContext('2d');
37 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
38 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
39
40 assert_not_equals(left_of_center_pixel.data[0], 0);
41 assert_not_equals(left_of_center_pixel.data[1], 0);
42 assert_not_equals(left_of_center_pixel.data[2], 0);
43
44 ctx.imageSmoothingEnabled = false;
45 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
46 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
47
48 assert_equals(left_of_center_pixel.data[0], 0);
49 assert_equals(left_of_center_pixel.data[1], 0);
50 assert_equals(left_of_center_pixel.data[2], 0);
51
52 ctx.imageSmoothingEnabled = true;
53 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
54 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
55
56 assert_not_equals(left_of_center_pixel.data[0], 0);
57 assert_not_equals(left_of_center_pixel.data[1], 0);
58 assert_not_equals(left_of_center_pixel.data[2], 0);
59
60 ctx.imageSmoothingEnabled = false;
61 ctx.save();
62 ctx.imageSmoothingEnabled = true;
63 ctx.restore();
64 ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
65 left_of_center_pixel = ctx.getImageData(1, 0, 1, 1);
66 assert_equals(left_of_center_pixel.data[0], 0);
67 assert_equals(left_of_center_pixel.data[1], 0);
68 assert_equals(left_of_center_pixel.data[2], 0);
69
70 }, "Tests for the imageSmoothingEnabled attribute.");
71 </script>
8 </body> 72 </body>
9 </html>
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