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Issue 2651253004: Convert non-Audit AudioParam tests to testharness (Closed)
Patch Set: Reindent Created 3 years, 10 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 2
3 <!-- 3 <!--
4 Tests that multiple audio-rate signals (AudioNode outputs) can be connected to a n AudioParam 4 Tests that multiple audio-rate signals (AudioNode outputs) can be connected to a n AudioParam
5 and that these signals are summed, along with the AudioParams intrinsic value. 5 and that these signals are summed, along with the AudioParams intrinsic value.
6 --> 6 -->
7 7
8 <html> 8 <html>
9 <head> 9 <head>
10 <script src="../../resources/js-test.js"></script> 10 <script src="../../resources/testharness.js"></script>
11 <script src="../../resources/testharnessreport.js"></script>
11 <script src="../resources/audit-util.js"></script> 12 <script src="../resources/audit-util.js"></script>
12 <script src="../resources/audio-testing.js"></script> 13 <script src="../resources/audit.js"></script>
13 <script src="../resources/mix-testing.js"></script> 14 <script src="../resources/mix-testing.js"></script>
14 15
15 </head> 16 </head>
16 <body> 17 <body>
17 18
18 <script> 19 <script>
20 let audit = Audit.createTaskRunner();
19 21
20 var sampleRate = 44100.0; 22 let sampleRate = 44100.0;
21 var lengthInSeconds = 1; 23 let lengthInSeconds = 1;
22 24
23 var context = 0; 25 let context = 0;
24 26
25 // Buffers used by the two gain controlling sources. 27 // Buffers used by the two gain controlling sources.
26 var linearRampBuffer; 28 let linearRampBuffer;
27 var toneBuffer; 29 let toneBuffer;
28 var toneFrequency = 440; 30 let toneFrequency = 440;
29 31
30 // Arbitrary non-zero value. 32 // Arbitrary non-zero value.
31 var baselineGain = 5; 33 let baselineGain = 5;
32 34
33 // Allow for a small round-off error. 35 // Allow for a small round-off error.
34 var maxAllowedError = 1e-6; 36 let maxAllowedError = 1e-6;
35 37
36 function checkResult(event) { 38 function checkResult(renderedBuffer, should) {
37 var renderedBuffer = event.renderedBuffer; 39 let renderedData = renderedBuffer.getChannelData(0);
38 var renderedData = renderedBuffer.getChannelData(0);
39 40
40 // Get buffer data from the two sources used to control gain. 41 // Get buffer data from the two sources used to control gain.
41 var linearRampData = linearRampBuffer.getChannelData(0); 42 let linearRampData = linearRampBuffer.getChannelData(0);
42 var toneData = toneBuffer.getChannelData(0); 43 let toneData = toneBuffer.getChannelData(0);
43 44
44 var n = renderedBuffer.length; 45 let n = renderedBuffer.length;
45 46
46 if (n == linearRampBuffer.length) { 47 should(n, 'Rendered signal length').beEqualTo(linearRampBuffer.length);
47 testPassed("Rendered signal is of correct length."); 48
48 } else { 49 // Check that the rendered result exactly matches the sum of the intrinsic
49 testFailed("Rendered signal is not of correct length."); 50 // gain plus the two sources used to control gain.
51 // This is because we're changing the gain of a signal having constant value
52 // 1.
53 let success = true;
54 for (let i = 0; i < n; ++i) {
55 let expectedValue = baselineGain + linearRampData[i] + toneData[i];
56 let error = Math.abs(expectedValue - renderedData[i]);
57
58 if (error > maxAllowedError) {
59 success = false;
60 break;
50 } 61 }
62 }
51 63
52 // Check that the rendered result exactly matches the sum of the intrinsic g ain plus the two sources used to control gain. 64 should(
53 // This is because we're changing the gain of a signal having constant value 1. 65 success,
54 var success = true; 66 'Rendered signal matches sum of two audio-rate gain changing signals plus baseline gain')
55 for (var i = 0; i < n; ++i) { 67 .beTrue();
56 var expectedValue = baselineGain + linearRampData[i] + toneData[i];
57 var error = Math.abs(expectedValue - renderedData[i]);
58
59 if (error > maxAllowedError) {
60 success = false;
61 break;
62 }
63 }
64
65 if (success) {
66 testPassed("Rendered signal matches sum of two audio-rate gain changing signals plus baseline gain.");
67 } else {
68 testFailed("Rendered signal differs from the sum of two audio-rate gain changing signals plus baseline gain.");
69 }
70
71 finishJSTest();
72 } 68 }
73 69
74 function runTest() { 70 audit.define('test', function(task, should) {
75 if (window.testRunner) { 71 let sampleFrameLength = sampleRate * lengthInSeconds;
76 testRunner.dumpAsText();
77 testRunner.waitUntilDone();
78 }
79 72
80 window.jsTestIsAsync = true; 73 // Create offline audio context.
74 context = new OfflineAudioContext(1, sampleFrameLength, sampleRate);
81 75
82 var sampleFrameLength = sampleRate * lengthInSeconds; 76 // Create buffer used by the source which will have its gain controlled.
77 let constantOneBuffer = createConstantBuffer(context, sampleFrameLength, 1);
78 let constantSource = context.createBufferSource();
79 constantSource.buffer = constantOneBuffer;
83 80
84 // Create offline audio context. 81 // Create 1st buffer used to control gain (a linear ramp).
85 context = new OfflineAudioContext(1, sampleFrameLength, sampleRate); 82 linearRampBuffer = createLinearRampBuffer(context, sampleFrameLength);
83 let gainSource1 = context.createBufferSource();
84 gainSource1.buffer = linearRampBuffer;
86 85
87 // Create buffer used by the source which will have its gain controlled. 86 // Create 2st buffer used to control gain (a simple sine wave tone).
88 var constantOneBuffer = createConstantBuffer(context, sampleFrameLength, 1); 87 toneBuffer = createToneBuffer(context, toneFrequency, lengthInSeconds, 1);
89 var constantSource = context.createBufferSource(); 88 let gainSource2 = context.createBufferSource();
90 constantSource.buffer = constantOneBuffer; 89 gainSource2.buffer = toneBuffer;
91 90
92 // Create 1st buffer used to control gain (a linear ramp). 91 // Create a gain node controlling the gain of constantSource and make the
93 linearRampBuffer = createLinearRampBuffer(context, sampleFrameLength); 92 // connections.
94 var gainSource1 = context.createBufferSource(); 93 let gainNode = context.createGain();
95 gainSource1.buffer = linearRampBuffer;
96 94
97 // Create 2st buffer used to control gain (a simple sine wave tone). 95 // Intrinsic baseline gain.
98 toneBuffer = createToneBuffer(context, toneFrequency, lengthInSeconds, 1); 96 // This gain value should be summed with gainSource1 and gainSource2.
99 var gainSource2 = context.createBufferSource(); 97 gainNode.gain.value = baselineGain;
100 gainSource2.buffer = toneBuffer;
101 98
102 // Create a gain node controlling the gain of constantSource and make the co nnections. 99 constantSource.connect(gainNode);
103 var gainNode = context.createGain(); 100 gainNode.connect(context.destination);
104 101
105 // Intrinsic baseline gain. 102 // Connect two audio-rate signals to control the .gain AudioParam.
106 // This gain value should be summed with gainSource1 and gainSource2. 103 gainSource1.connect(gainNode.gain);
107 gainNode.gain.value = baselineGain; 104 gainSource2.connect(gainNode.gain);
108 105
109 constantSource.connect(gainNode); 106 // Start all sources at time 0.
110 gainNode.connect(context.destination); 107 constantSource.start(0);
108 gainSource1.start(0);
109 gainSource2.start(0);
111 110
112 // Connect two audio-rate signals to control the .gain AudioParam. 111 context.startRendering().then(buffer => {
113 gainSource1.connect(gainNode.gain); 112 checkResult(buffer, should);
114 gainSource2.connect(gainNode.gain); 113 task.done();
114 });
115 });
115 116
116 // Start all sources at time 0. 117 audit.run();
117 constantSource.start(0);
118 gainSource1.start(0);
119 gainSource2.start(0);
120
121 context.oncomplete = checkResult;
122 context.startRendering();
123 }
124
125 runTest();
126 successfullyParsed = true;
127
128 </script> 118 </script>
129 119
130 </body> 120 </body>
131 </html> 121 </html>
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