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1 <!DOCTYPE html> | |
2 <html> | |
3 <head> | |
esprehn
2015/08/20 20:45:55
leave out hmtl, head, meta charset
rmcilroy
2015/08/21 00:03:44
Done.
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4 <meta charset="utf-8" /> | |
5 <title>window.requestIdleCallback exists</title> | |
6 <link rel="author" title="Ross McIlroy" href="mailto:rmcilroy@chromium.org" /> | |
7 <link rel="help" href="http://www.w3.org/TR/requestidlecallback/"/> | |
8 <script src="../../../../resources/testharness.js"></script> | |
9 <script src="../../../../resources/testharnessreport.js"></script> | |
10 <link rel="stylesheet" href="../../resources/testharness.css" /> | |
11 <script> | |
12 test(function() { | |
13 assert_equals(typeof window.requestIdleCallback, "function"); | |
14 }, "window.requestIdleCallback is defined", {assert: "The window.requestIdleCall back function is used to request callbacks during browser-defined idle time."}); | |
15 | |
16 test(function() { | |
17 assert_equals(typeof window.cancelIdleCallback, "function"); | |
18 }, "window.cancelIdleCallback is defined", {assert: "The window.cancelIdleCallba ck function is used to cancel callbacks scheduled via requestIdleCallback."}); | |
19 | |
20 test(function() { | |
21 assert_equals(typeof window.requestIdleCallback(function() {}), "number"); | |
22 }, "window.requestIdleCallback() returns a number", {assert: "The requestIdleCal lback method MUST return a long"}); | |
23 | |
24 test(function() { | |
25 assert_equals(typeof window.cancelIdleCallback(1), "undefined"); | |
26 }, "window.cancelIdleCallback() returns undefined", {assert: "The cancelIdleCall back method MUST return void"}); | |
27 | |
28 async_test(function() { | |
29 // Check whether requestIdleCallback schedules a callback which gets executed | |
30 // and the deadline argument is passed correctly. | |
31 requestIdleCallback(this.step_func(function(deadline) { | |
32 assert_equals(typeof deadline, "object", "IdleDeadline MUST be passed to cal lback."); | |
33 assert_equals(typeof deadline.timeRemaining, "function", "IdleDeadline.timeR emaining MUST be a function"); | |
34 var timeRemaining = deadline.timeRemaining(); | |
35 assert_equals(typeof timeRemaining, "number", "IdleDeadline.timeRemaining() MUST return a double time remaining in milliseconds"); | |
36 assert_true(timeRemaining <= 50, "IdleDeadline.timeRemaining() MUST be less than or equal to 50ms in the future."); | |
37 assert_equals(typeof deadline.didTimeout, "boolean", "IdleDeadline.didTimeou t MUST be a boolean"); | |
38 assert_false(deadline.didTimeout, "IdleDeadline.didTimeout MUST be false if requestIdleCallback wasn't scheduled due to a timeout"); | |
39 this.done(); | |
40 })); | |
41 }, 'requestIdleCallback schedules callbacks'); | |
42 | |
43 async_test(function() { | |
44 // Check whether requestIdleCallback schedules a callback which gets executed | |
45 // and the deadline argument is passed correctly. | |
46 var handle = requestIdleCallback(this.step_func(function(deadline) { | |
47 assert_unreached("callback should not be called if canceled with cancelIdleC allback"); | |
48 })); | |
49 cancelIdleCallback(handle); | |
50 setTimeout(this.step_func(function() { | |
51 this.done(); | |
52 }), 200); | |
53 }, 'cancelIdleCallback cancels callbacks'); | |
54 | |
55 </script> | |
56 <h1>Description</h1> | |
57 <p>This test validates that window.requestIdleCallback and window.cancelIdleCall back exist and are a functions.</p> | |
58 </head> | |
59 <body> | |
60 <div id="log"></div> | |
61 | |
62 </body> | |
esprehn
2015/08/20 20:45:55
leave out body and html
rmcilroy
2015/08/21 00:03:44
Done.
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63 </html> | |
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