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Side by Side Diff: third_party/WebKit/LayoutTests/fast/canvas/canvas-drawImage-shadow.html

Issue 2696023002: Use testharness.js instead of js-test.js in LayoutTests/fast/canvas tests. (Closed)
Patch Set: Rebaseline Created 3 years, 10 months ago
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1 <script src="../../resources/testharness.js"></script> 1 <script src="../../resources/testharness.js"></script>
2 <script src="../../resources/testharnessreport.js"></script> 2 <script src="../../resources/testharnessreport.js"></script>
3 <body> 3 <body>
4 <script> 4 <script>
5 // Create auxiliary canvas to draw to and create an image from. 5 // Create auxiliary canvas to draw to and create an image from.
6 // This is done instead of simply loading an image from the file system 6 // This is done instead of simply loading an image from the file system
7 // because that would throw a SECURITY_ERR DOM Exception. 7 // because that would throw a SECURITY_ERR DOM Exception.
8 var aCanvas = document.createElement('canvas'); 8 var aCanvas = document.createElement('canvas');
9 aCanvas.setAttribute('width', '200'); 9 aCanvas.setAttribute('width', '200');
10 aCanvas.setAttribute('height', '200'); 10 aCanvas.setAttribute('height', '200');
11 var aCtx = aCanvas.getContext('2d'); 11 var aCtx = aCanvas.getContext('2d');
12 12
13 // Draw a circle on the same canvas. 13 // Draw a circle on the same canvas.
14 aCtx.beginPath(); 14 aCtx.beginPath();
15 aCtx.fillStyle = 'green'; 15 aCtx.fillStyle = 'green';
16 aCtx.arc(100, 100, 150, 0, -Math.PI/2, false); 16 aCtx.arc(100, 100, 150, 0, -Math.PI/2, false);
17 aCtx.fill(); 17 aCtx.fill();
18 18
19 // Create the image object to be drawn on the master canvas. 19 // Create the image object to be drawn on the master canvas.
20 var img = new Image(); 20 var img = new Image();
21 img.onload = drawImageToCanvasAndCheckPixels;
22 img.src = aCanvas.toDataURL(); // set a data URI of the base64 enconded image as the source 21 img.src = aCanvas.toDataURL(); // set a data URI of the base64 enconded image as the source
23 22
24 // Create master canvas. 23 // Create master canvas.
25 var canvas = document.createElement('canvas'); 24 var canvas = document.createElement('canvas');
26 document.body.appendChild(canvas); 25 document.body.appendChild(canvas);
27 canvas.setAttribute('width', '600'); 26 canvas.setAttribute('width', '600');
28 canvas.setAttribute('height', '600'); 27 canvas.setAttribute('height', '600');
29 var ctx = canvas.getContext('2d'); 28 var ctx = canvas.getContext('2d');
30 29
30 var testScenarios = [
31 ['Test solid shadow 1', 260, 300, [0, 0, 0, 0]],
32 ['Test solid shadow 2', 350, 100, [240, 50, 50, 255]],
33 ['Test solid shadow 3', 400, 200, [240, 50, 50, 255]],
34 ['Test solid shadow 4', 490, 65, [0, 0, 0, 0]],
35 ['Test solid shadow 5', 485, 65, [0, 0, 0, 0]],
36
37 ['Test blurry shadow 1', 260, 400, [0, 0, 0, 0]],
38 ['Test blurry shadow 2', 350, 300, [0, 0, 255, 'neq', 255]],
39 ['Test blurry shadow 3', 300, 400, [0, 0, 255, 'neq', 255]],
40 ['Test blurry shadow 4', 300, 500, [0, 0, 255, 'neq', 255]],
41 ['Test blurry shadow 5', 400, 500, [0, 0, 255, 'neq', 255]],
42 ['Test blurry shadow 6', 400, 400, [0, 0, 255]],
43 ['Test blurry shadow 7', 490, 315, [0, 0, 0, 0]],
44 ['Test blurry shadow 8', 485, 320, [0, 0, 0, 0]],
45 ];
46
47 function runTestScenario(x, y, expectedColor)
48 {
49 imageData = ctx.getImageData(x, y, 1, 1).data;
50 if (expectedColor.length == 5) {
51 assert_array_equals(imageData.slice(0,3), expectedColor.slice(0,3));
52 assert_not_equals(imageData[3], expectedColor[4]);
53 } else {
54 assert_array_equals(imageData.slice(0, expectedColor.length), expectedCo lor);
55 }
56 }
57
31 function drawImageToCanvasAndCheckPixels() { 58 function drawImageToCanvasAndCheckPixels() {
32 ctx.shadowOffsetX = 250; 59 ctx.shadowOffsetX = 250;
33 ctx.shadowColor = 'rgba(240, 50, 50, 1.0)'; 60 ctx.shadowColor = 'rgba(240, 50, 50, 1.0)';
34 ctx.drawImage(img, 50, 50); 61 ctx.drawImage(img, 50, 50);
35 62
36 ctx.shadowOffsetX = 250; 63 ctx.shadowOffsetX = 250;
37 ctx.shadowBlur = 6; 64 ctx.shadowBlur = 6;
38 ctx.shadowColor = 'rgba(50, 50, 200, 0.9)'; 65 ctx.shadowColor = 'rgba(50, 50, 200, 0.9)';
39 ctx.shadowColor = 'rgba(0, 0, 255, 1.0)'; 66 ctx.shadowColor = 'rgba(0, 0, 255, 1.0)';
40 ctx.drawImage(img, 50, 300); 67 ctx.drawImage(img, 50, 300);
41 68
42 checkPixels(); 69 for (var i = 0; i < testScenarios.length; i++)
43 } 70 runTestScenario(testScenarios[i][1],
71 testScenarios[i][2],
72 testScenarios[i][3]);}
44 73
45 function checkPixels() { 74 async_test(t => {
46 test(function(t) { 75 img.onload = function() {
47 var imageData, data; 76 t.step(drawImageToCanvasAndCheckPixels);
48 77 t.done();
49 // Verify solid shadow. 78 }
50 imageData = ctx.getImageData(260, 300, 1, 1); 79 }, "Ensure correct behavior of canvas with image shadow. A square with a cut-out top-right corner should be displayed with solid shadow (top) and blur shadow (b ottom).");
51 d = imageData.data;
52 assert_equals(d[0], 0);
53 assert_equals(d[1], 0);
54 assert_equals(d[2], 0);
55 assert_equals(d[3], 0);
56
57 imageData = ctx.getImageData(350, 100, 1, 1);
58 d = imageData.data;
59 assert_equals(d[0], 240);
60 assert_equals(d[1], 50);
61 assert_equals(d[2], 50);
62 assert_equals(d[3], 255);
63
64 imageData = ctx.getImageData(400, 200, 1, 1);
65 d = imageData.data;
66 assert_equals(d[0], 240);
67 assert_equals(d[1], 50);
68 assert_equals(d[2], 50);
69 assert_equals(d[3], 255);
70
71 imageData = ctx.getImageData(490, 65, 1, 1);
72 d = imageData.data;
73 assert_equals(d[0], 0);
74 assert_equals(d[1], 0);
75 assert_equals(d[2], 0);
76 assert_equals(d[3], 0);
77
78 imageData = ctx.getImageData(485, 65, 1, 1);
79 d = imageData.data;
80 assert_equals(d[0], 0);
81 assert_equals(d[1], 0);
82 assert_equals(d[2], 0);
83 assert_equals(d[3], 0);
84
85 // Verify blurry shadow.
86 imageData = ctx.getImageData(260, 400, 1, 1);
87 d = imageData.data;
88 assert_equals(d[0], 0);
89 assert_equals(d[1], 0);
90 assert_equals(d[2], 0);
91 assert_equals(d[3], 0);
92
93 imageData = ctx.getImageData(350, 300, 1, 1);
94 d = imageData.data;
95 assert_equals(d[0], 0);
96 assert_equals(d[1], 0);
97 assert_equals(d[2], 255);
98 assert_not_equals(d[3], 255);
99
100 imageData = ctx.getImageData(300, 400, 1, 1);
101 d = imageData.data;
102 assert_equals(d[0], 0);
103 assert_equals(d[1], 0);
104 assert_equals(d[2], 255);
105 assert_not_equals(d[3], 255);
106
107 imageData = ctx.getImageData(300, 500, 1, 1);
108 d = imageData.data;
109 assert_equals(d[0], 0);
110 assert_equals(d[1], 0);
111 assert_equals(d[2], 255);
112 assert_not_equals(d[3], 255);
113
114 imageData = ctx.getImageData(400, 500, 1, 1);
115 d = imageData.data;
116 assert_equals(d[0], 0);
117 assert_equals(d[1], 0);
118 assert_equals(d[2], 255);
119 assert_not_equals(d[3], 255);
120
121 imageData = ctx.getImageData(400, 400, 1, 1);
122 d = imageData.data;
123 assert_equals(d[0], 0);
124 assert_equals(d[1], 0);
125 assert_equals(d[2], 255);
126
127 imageData = ctx.getImageData(490, 315, 1, 1);
128 d = imageData.data;
129 assert_equals(d[0], 0);
130 assert_equals(d[1], 0);
131 assert_equals(d[2], 0);
132 assert_equals(d[3], 0);
133
134 imageData = ctx.getImageData(485, 320, 1, 1);
135 d = imageData.data;
136 assert_equals(d[0], 0);
137 assert_equals(d[1], 0);
138 assert_equals(d[2], 0);
139 assert_equals(d[3], 0);
140
141 }, "Ensure correct behavior of canvas with image shadow. A square with a cut -out top-right corner should be displayed with solid shadow (top) and blur shado w (bottom).");
142 }
143 </script> 80 </script>
144 </body> 81 </body>
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