third_party/WebKit/LayoutTests/webaudio/AudioBufferSource/audiobuffersource-playbackrate-zero.html - Issue 2783553002: Convert AudioBufferSource tests to new Audit

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Issue 2783553002: Convert AudioBufferSource tests to new Audit (Closed)

Patch Set: Indent neatly. Created 3 years, 8 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <html>	2 <html>

3	3

4 <head>	4 <head>

5 <script src="../../resources/testharness.js"></script>	5 <script src="../../resources/testharness.js"></script>

6 <script src="../../resources/testharnessreport.js"></script>	6 <script src="../../resources/testharnessreport.js"></script>

7 <script src="../resources/audit-util.js"></script>	7 <script src="../resources/audit-util.js"></script>

8 <script src="../resources/audio-testing.js"></script>	8 <script src="../resources/audit.js"></script>

9 </head>	9 </head>

10	10

11 <body>	11 <body>

12 <script>	12 <script>

13	13

14 // Sample rate should be power of 128 to observe the change of AudioParam at	14 // Sample rate should be power of 128 to observe the change of AudioParam at

15 // the beginning of rendering quantum. (playbackRate is k-rate) This is the	15 // the beginning of rendering quantum. (playbackRate is k-rate) This is the

16 // minimum sample rate in the valid sample rate range.	16 // minimum sample rate in the valid sample rate range.

17 var sampleRate = 4096;	17 var sampleRate = 4096;

18	18

19 // The render duration in seconds, and the length in samples.	19 // The render duration in seconds, and the length in samples.

20 var renderDuration = 1.0;	20 var renderDuration = 1.0;

21 var renderLength = renderDuration * sampleRate;	21 var renderLength = renderDuration * sampleRate;

22	22

23 var context = new OfflineAudioContext(1, renderLength, sampleRate);	23 var context = new OfflineAudioContext(1, renderLength, sampleRate);

24 var audit = Audit.createTaskRunner();	24 var audit = Audit.createTaskRunner();

25	25

26	26

27 // Task: Render the actual buffer and compare with the reference.	27 // Task: Render the actual buffer and compare with the reference.

28 audit.defineTask('synthesize-verify', function (done) {	28 audit.define('synthesize-verify', (task, should) => {

29 var ramp = context.createBufferSource();	29 var ramp = context.createBufferSource();

30 var rampBuffer = createLinearRampBuffer(context, renderLength);	30 var rampBuffer = createLinearRampBuffer(context, renderLength);

31 ramp.buffer = rampBuffer;	31 ramp.buffer = rampBuffer;

32	32

33 ramp.connect(context.destination);	33 ramp.connect(context.destination);

34 ramp.start();	34 ramp.start();

35	35

36 // Leave the playbackRate as 1 for the first half, then change it	36 // Leave the playbackRate as 1 for the first half, then change it

37 // to zero at the exact half. The zero playback rate should hold the	37 // to zero at the exact half. The zero playback rate should hold the

38 // sample value of the buffer index at the moment. (sample-and-hold)	38 // sample value of the buffer index at the moment. (sample-and-hold)

(...skipping 16 matching lines...) Expand all Loading...
55 }	55 }

56 } else {	56 } else {

57 // From the half position, the actual value should not change.	57 // From the half position, the actual value should not change.

58 if (data[i] !== rampData[half]) {	58 if (data[i] !== rampData[half]) {

59 passed = false;	59 passed = false;

60 break;	60 break;

61 }	61 }

62 }	62 }

63 }	63 }

64	64

65 Should('The zero playbackRate', passed)	65 should(passed, 'The zero playbackRate')

66 .summarize(	66 .message(

67 'held the sample value correctly',	67 'held the sample value correctly',

68 'should hold the sample value. ' + 'Expected ' + rampData[half] +	68 'should hold the sample value. ' + 'Expected ' + rampData[half] +

69 ' but got ' + data[i] + ' at the index ' + i);	69 ' but got ' + data[i] + ' at the index ' + i);

70 }).then(done);	70 }).then(() => task.done());

71 });	71 });

72	72

73 audit.defineTask('finish', function (done) {	73 audit.run();

74 done();

75 });

76

77 audit.runTasks(

78 'synthesize-verify',

79 'finish'

80 );

81

82 successfullyParsed = true;

83 </script>	74 </script>

84 </body>	75 </body>

85	76

86 </html>	77 </html>

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