third_party/WebKit/LayoutTests/webaudio/Analyser/realtimeanalyser-zero.html - Issue 2777983002: Convert Analyser tests to use new Audit.

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Issue 2777983002: Convert Analyser tests to use new Audit. (Closed)

Patch Set: Rebase Created 3 years, 8 months ago

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1 <!doctype html>	1 <!doctype html>

2 <html>	2 <html>

3 <head>	3 <head>

4 <script src="../../resources/testharness.js"></script>	4 <script src="../../resources/testharness.js"></script>

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

6 <script src="../resources/audit-util.js"></script>	6 <script src="../resources/audit-util.js"></script>

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

8 <title>Test getFloatFrequencyData With Zero Inputs</title>	8 <title>Test getFloatFrequencyData With Zero Inputs</title>

9 </head>	9 </head>

10	10

11 <body>	11 <body>

12 <script>	12 <script>

13 var sampleRate = 48000;	13 var sampleRate = 48000;

14	14

15 // Render enough data to run the test.	15 // Render enough data to run the test.

16 var renderFrames = 2*1024;	16 var renderFrames = 2*1024;

17 var renderDuration = renderFrames / sampleRate;	17 var renderDuration = renderFrames / sampleRate;

18	18

19 var audit = Audit.createTaskRunner();	19 var audit = Audit.createTaskRunner();

20	20

21	21

22 // Test that getFloatFrequencyData returns -Infinity when the input is all -zeroes.	22 // Test that getFloatFrequencyData returns -Infinity when the input is all -zeroes.

23 audit.defineTask("zero input", function (done) {	23 audit.define("zero input", (task, should) => {

24 var context = new OfflineAudioContext(1, renderFrames, sampleRate);	24 var context = new OfflineAudioContext(1, renderFrames, sampleRate);

25	25

26 // Constant source of 0's.	26 // Constant source of 0's.

27 var source = context.createBufferSource();	27 var source = context.createBufferSource();

28 source.buffer = createConstantBuffer(context, 1, 0);	28 source.buffer = createConstantBuffer(context, 1, 0);

29 source.loop = true;	29 source.loop = true;

30	30

31 // Create analyser and use some non-default minDecibels value.	31 // Create analyser and use some non-default minDecibels value.

32 var analyser = context.createAnalyser();	32 var analyser = context.createAnalyser();

33 analyser.minDecibels = -123;	33 analyser.minDecibels = -123;

34	34

35 source.connect(analyser);	35 source.connect(analyser);

36 analyser.connect(context.destination);	36 analyser.connect(context.destination);

37	37

38 source.start();	38 source.start();

39	39

40 // Suspend after some number of frames and grab the float frequency data .	40 // Suspend after some number of frames and grab the float frequency data .

41 context.suspend(1024 / sampleRate).then(function () {	41 context.suspend(1024 / sampleRate).then(function () {

42 var f = new Float32Array(analyser.frequencyBinCount);	42 var f = new Float32Array(analyser.frequencyBinCount);

43 analyser.getFloatFrequencyData(f);	43 analyser.getFloatFrequencyData(f);

44	44

45 Should("getFloatFrequencyData() with zero-valued input", f)	45 should(f, "getFloatFrequencyData() with zero-valued input")

46 .beConstantValueOf(-Infinity);	46 .beConstantValueOf(-Infinity);

47 }).then(context.resume.bind(context));	47 }).then(context.resume.bind(context));

48	48

49 context.startRendering().then(done);	49 context.startRendering().then(() => task.done());

50 });	50 });

51	51

52 audit.defineTask("finish", function (done) {	52 audit.run();

53 done();

54 });

55

56 audit.runTasks();

57	53

58 </script>	54 </script>

59 </body>	55 </body>

60 </html>	56 </html>

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