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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-setTransform.js

Issue 2693193003: Use testharness.js instead of js-test.js in LayoutTests/fast/canvas tests. (Closed)
Patch Set: Corrections Created 3 years, 10 months ago
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« third_party/WebKit/LayoutTests/fast/canvas/canvas-state-intact-after-putImageData.html ('K') | « third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-set-properties-with-non-invertible-ctm.js ('k') | third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-shadow.js » ('j') | no next file with comments »
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1 description("Series of tests to ensure correct behaviour of canvas.setTransform( )");
2 var ctx = document.createElement('canvas').getContext('2d');
3
4 debug("Reset the CTM to the initial matrix");
5 ctx.beginPath();
6 ctx.scale(0.5, 0.5);
7 ctx.setTransform(1, 0, 0, 1, 0, 0);
8 ctx.fillStyle = 'green';
9 ctx.fillRect(0, 0, 100, 100);
10
11 var imageData = ctx.getImageData(1, 1, 98, 98);
12 var imgdata = imageData.data;
13 shouldBe("imgdata[4]", "0");
14 shouldBe("imgdata[5]", "128");
15 shouldBe("imgdata[6]", "0");
16
17 debug("setTransform should not affect the current path");
18 ctx.beginPath();
19 ctx.rect(0,0,100,100);
20 ctx.save();
21 ctx.setTransform(0.5, 0, 0, 0.5, 10, 10);
22 ctx.fillStyle = 'red';
23 ctx.fillRect(0, 0, 100, 100);
24 ctx.restore();
25 ctx.fillStyle = 'green';
26 ctx.fillRect(0, 0, 100, 100);
27
28 imageData = ctx.getImageData(1, 1, 98, 98);
29 imgdata = imageData.data;
30 shouldBe("imgdata[4]", "0");
31 shouldBe("imgdata[5]", "128");
32 shouldBe("imgdata[6]", "0");
33
34 debug("setTransform should not affect the CTM outside of save() and restore()");
35 ctx.beginPath();
36 ctx.fillStyle = 'green';
37 ctx.save();
38 ctx.setTransform(0.5, 0, 0, 0.5, 0, 0);
39 ctx.fillStyle = 'red';
40 ctx.fillRect(0, 0, 100, 100);
41 ctx.restore();
42 ctx.fillRect(0, 0, 100, 100);
43
44 imageData = ctx.getImageData(1, 1, 98, 98);
45 imgdata = imageData.data;
46 shouldBe("imgdata[4]", "0");
47 shouldBe("imgdata[5]", "128");
48 shouldBe("imgdata[6]", "0");
49
50
51 debug("stop drawing on not-invertible CTM");
52 ctx.beginPath();
53 ctx.fillStyle = 'green';
54 ctx.fillRect(0, 0, 100, 100);
55 ctx.setTransform(0, 0, 0, 0, 0, 0);
56 ctx.fillStyle = 'red';
57 ctx.fillRect(0, 0, 100, 100);
58
59 imageData = ctx.getImageData(1, 1, 98, 98);
60 imgdata = imageData.data;
61 shouldBe("imgdata[4]", "0");
62 shouldBe("imgdata[5]", "128");
63 shouldBe("imgdata[6]", "0");
64
65 debug("setTransform with a not-invertible matrix should only stop the drawing up to the next restore()");
66 ctx.beginPath();
67 ctx.resetTransform();
68 ctx.save();
69 ctx.setTransform(0, 0, 0, 0, 0, 0);
70 ctx.fillStyle = 'red';
71 ctx.fillRect(0, 0, 100, 100);
72 ctx.restore();
73 ctx.fillStyle = 'blue';
74 ctx.fillRect(0, 0, 100, 100);
75
76 imageData = ctx.getImageData(1, 1, 98, 98);
77 imgdata = imageData.data;
78 shouldBe("imgdata[4]", "0");
79 shouldBe("imgdata[5]", "0");
80 shouldBe("imgdata[6]", "255");
81
82 debug("setTransform should set transform although CTM is not-invertible");
83 ctx.beginPath();
84 ctx.fillStyle = 'red';
85 ctx.fillRect(0, 0, 100, 100);
86 ctx.setTransform(0, 0, 0, 0, 0, 0);
87 ctx.fillStyle = 'green';
88 ctx.fillRect(0, 0, 100, 100);
89 ctx.setTransform(1, 0, 0, 1, 0, 0);
90 ctx.fillStyle = 'blue';
91 ctx.fillRect(0, 0, 100, 100);
92
93 imageData = ctx.getImageData(1, 1, 98, 98);
94 imgdata = imageData.data;
95 shouldBe("imgdata[4]", "0");
96 shouldBe("imgdata[5]", "0");
97 shouldBe("imgdata[6]", "255");
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« third_party/WebKit/LayoutTests/fast/canvas/canvas-state-intact-after-putImageData.html ('K') | « third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-set-properties-with-non-invertible-ctm.js ('k') | third_party/WebKit/LayoutTests/fast/canvas/script-tests/canvas-shadow.js » ('j') | no next file with comments »

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