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1 <!DOCTYPE html> | 1 <!DOCTYPE html> |
2 <script src="../../resources/js-test.js"></script> | 2 <title>Tests basic functionalities of offscreenCanvas.getContext on the main thr ead.</title> |
fs
2016/08/23 08:50:58
OffscreenCanvas
sivag
2016/08/25 07:39:01
Done.
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3 <script src="../../resources/testharness.js"></script> | |
4 <script src="../../resources/testharnessreport.js"></script> | |
3 <script> | 5 <script> |
4 description("Tests basic functionalities of offscreenCanvas.getContext on the ma in thread"); | 6 test(function() { |
7 // Tests constructor of OffscreenCanvas and length/width change | |
fs
2016/08/23 08:50:57
Add full stops ('.') at end up sentences - here an
sivag
2016/08/25 07:39:01
Done.
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8 var aCanvas = new OffscreenCanvas(40, 60); | |
9 assert_equals(aCanvas.width, 40); | |
10 assert_equals(aCanvas.height, 60); | |
5 | 11 |
6 // Tests onstructor of OffscreenCanvas and length/width change | 12 aCanvas.width = 110; |
7 var aCanvas = new OffscreenCanvas(40, 60); | 13 aCanvas.height = 90; |
8 shouldBe("aCanvas.width", "40"); | 14 assert_equals(aCanvas.width, 110); |
9 shouldBe("aCanvas.height", "60"); | 15 assert_equals(aCanvas.height, 90); |
10 | 16 |
11 aCanvas.width = 110; | 17 aCanvas.width = 0; // Zero dimension is allowed |
12 aCanvas.height = 90; | 18 assert_equals(aCanvas.width, 0); |
13 shouldBe("aCanvas.width", "110"); | |
14 shouldBe("aCanvas.height", "90"); | |
15 | 19 |
16 aCanvas.width = 0; // Zero dimension is allowed | 20 // Tests object type of getContext('2d') |
17 shouldBe("aCanvas.width", "0"); | 21 var ctx; |
22 ctx = aCanvas.getContext('2d'); | |
fs
2016/08/23 08:50:57
Maybe merge this with the previous line.
sivag
2016/08/25 07:39:01
Done.
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23 assert_true(ctx instanceof OffscreenCanvasRenderingContext2D); | |
fs
2016/08/23 08:50:57
Double space after instanceof.
sivag
2016/08/25 07:39:01
Done.
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24 // Calling getContext on a different context type will return null | |
25 var ctx2 = aCanvas.getContext("webgl"); | |
26 assert_equals(ctx2, null); | |
18 | 27 |
19 // Tests object type of getContext('2d') | 28 // Calling getContext on the same context type will return the original cont ext type |
20 var ctx; | 29 var ctx3 = aCanvas.getContext("2d"); |
21 shouldNotThrow("ctx = aCanvas.getContext('2d')"); | 30 assert_not_equals(ctx3, null); |
22 shouldBeType("ctx", "OffscreenCanvasRenderingContext2D"); | 31 assert_true(ctx3 == ctx); |
Srirama
2016/08/23 06:34:24
use assert_equals
sivag
2016/08/25 07:39:01
Done.
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23 | 32 |
24 // Calling getContext on a different context type will return null | 33 // TODO: change the below part of the test when webgl is supported. |
Justin Novosad
2016/08/23 15:53:00
This comment is no longer relevant. WebGL works no
sivag
2016/08/25 07:39:01
Done.
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25 var ctx2 = aCanvas.getContext("webgl"); | 34 // Calling getContext on an unimplemented context type will return null |
26 shouldBeNull("ctx2"); | 35 var bCanvas = new OffscreenCanvas(20, 20); |
27 | 36 var ctx4 = bCanvas.getContext("webgl"); |
28 // Calling getContext on the same context type will return the original context type | 37 assert_true(ctx4 instanceof WebGLRenderingContext); |
29 var ctx3 = aCanvas.getContext("2d"); | 38 }); |
30 shouldBeNonNull("ctx3"); | |
31 shouldBeTrue("ctx3 == ctx"); | |
32 | |
33 // TODO: change the below part of the test when webgl is supported. | |
34 // Calling getContext on an unimplemented context type will return null | |
35 var bCanvas = new OffscreenCanvas(20, 20); | |
36 var ctx4 = bCanvas.getContext("webgl"); | |
37 shouldBeType("ctx4", "WebGLRenderingContext"); | |
38 </script> | 39 </script> |
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