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Issue 2804633004: Convert Oscillator tests to new Audit (Closed)
Patch Set: Address review comments 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 OscillatorNode with Negative Frequency</title> 8 <title>Test OscillatorNode with Negative Frequency</title>
9 </head> 9 </head>
10 10
11 <body> 11 <body>
12 <script> 12 <script>
13 // Some arbitrary sample rate for the offline context. But it MUST be 13 // Some arbitrary sample rate for the offline context. But it MUST be
14 // at least twice the oscillator frequency that we're using for the 14 // at least twice the oscillator frequency that we're using for the
15 // test. (Currently 440 Hz.) 15 // test. (Currently 440 Hz.)
16 var sampleRate = 16000; 16 var sampleRate = 16000;
17 17
18 // A fairly arbitrary duration that should have at least 1-2 sample 18 // A fairly arbitrary duration that should have at least 1-2 sample
19 // periods of the oscillator (at a nominal 440 Hz). 19 // periods of the oscillator (at a nominal 440 Hz).
20 var renderDuration = 0.1; 20 var renderDuration = 0.1;
21 var renderFrames = renderDuration * sampleRate; 21 var renderFrames = renderDuration * sampleRate;
22 22
23 var audit = Audit.createTaskRunner(); 23 var audit = Audit.createTaskRunner();
24 24
25 audit.defineTask("sine", function (done) { 25 audit.define("sine", (task, should) => {
26 runTest({ 26 runTest(should, {
27 message: "Sum of positive and negative frequency sine oscillators", 27 message: "Sum of positive and negative frequency sine oscillators",
28 type: "sine", 28 type: "sine",
29 threshold: 3.5763e-7 29 threshold: 3.5763e-7
30 }).then(done); 30 }).then(() => task.done());
31 }); 31 });
32 32
33 audit.defineTask("square", function (done) { 33 audit.define("square", (task, should) => {
34 runTest({ 34 runTest(should, {
35 message: "Sum of positive and negative frequency square oscillators", 35 message: "Sum of positive and negative frequency square oscillators",
36 type: "square", 36 type: "square",
37 threshold: 1.4753e-6 37 threshold: 1.4753e-6
38 }).then(done); 38 }).then(() => task.done());
39 }); 39 });
40 40
41 audit.defineTask("sawtooth", function (done) { 41 audit.define("sawtooth", (task, should) => {
42 runTest({ 42 runTest(should, {
43 message: "Sum of positive and negative frequency sawtooth oscillators" , 43 message: "Sum of positive and negative frequency sawtooth oscillators" ,
44 type: "sawtooth", 44 type: "sawtooth",
45 threshold: 1.4753e-6 45 threshold: 1.4753e-6
46 }).then(done); 46 }).then(() => task.done());
47 }); 47 });
48 48
49 audit.defineTask("triangle", function (done) { 49 audit.define("triangle", (task, should) => {
50 runTest({ 50 runTest(should, {
51 message: "Sum of positive and negative frequency triangle oscillators" , 51 message: "Sum of positive and negative frequency triangle oscillators" ,
52 type: "triangle", 52 type: "triangle",
53 threshold: 2.9803e-7 53 threshold: 2.9803e-7
54 }).then(done); 54 }).then(() => task.done());
55 }); 55 });
56 56
57 audit.defineTask("auto-sawtooth", function (done) { 57 audit.define("auto-sawtooth", (task, should) => {
58 runTest({ 58 runTest(should, {
59 message: "Sum of positive and negative frequency-ramped sawtooth oscil lators", 59 message: "Sum of positive and negative frequency-ramped sawtooth oscil lators",
60 type: "sawtooth", 60 type: "sawtooth",
61 automation: { 61 automation: {
62 type: "linearRampToValueAtTime", 62 type: "linearRampToValueAtTime",
63 startTime: 0, 63 startTime: 0,
64 endTime: renderDuration / 2, 64 endTime: renderDuration / 2,
65 startFrequency: 440, 65 startFrequency: 440,
66 endFrequency: sampleRate / 4 66 endFrequency: sampleRate / 4
67 }, 67 },
68 threshold: 1.2368e-6 68 threshold: 1.2368e-6
69 }).then(done); 69 }).then(() => task.done());
70 }); 70 });
71 71
72 audit.defineTask("periodic-wave", function (done) { 72 audit.define("periodic-wave", (task, should) => {
73 // Test negative frequencies for a custom oscillator. Two channels are 73 // Test negative frequencies for a custom oscillator. Two channels are
74 // needed for the context; one for the expected result, and one for the 74 // needed for the context; one for the expected result, and one for the
75 // actual, as explained below. 75 // actual, as explained below.
76 var context = new OfflineAudioContext(2, renderFrames, sampleRate); 76 var context = new OfflineAudioContext(2, renderFrames, sampleRate);
77 77
78 var oscPositive = context.createOscillator(); 78 var oscPositive = context.createOscillator();
79 var oscNegative = context.createOscillator(); 79 var oscNegative = context.createOscillator();
80 80
81 // The Fourier coefficients for our custom oscillator. The actual value s 81 // The Fourier coefficients for our custom oscillator. The actual value s
82 // not important. The waveform for our custom oscillator is 82 // not important. The waveform for our custom oscillator is
(...skipping 49 matching lines...) Expand 10 before | Expand all | Expand 10 after
132 132
133 merger.connect(context.destination); 133 merger.connect(context.destination);
134 134
135 oscPositive.start(); 135 oscPositive.start();
136 oscNegative.start(); 136 oscNegative.start();
137 137
138 context.startRendering().then(function (buffer) { 138 context.startRendering().then(function (buffer) {
139 var expected = buffer.getChannelData(0); 139 var expected = buffer.getChannelData(0);
140 var actual = buffer.getChannelData(1); 140 var actual = buffer.getChannelData(1);
141 141
142 Should("Sum of positive and negative frequency custom oscillators", 142 should(actual,
143 actual, { 143 "Sum of positive and negative frequency custom oscillators")
144 precision: 6 144 .beCloseToArray(expected, {
145 }) 145 absoluteThreshold: 3.5763e-7
146 .beCloseToArray(expected, 3.5763e-7); 146 });
147 }).then(done); 147 }).then(() => task.done());
148 }); 148 });
149 149
150 audit.runTasks(); 150 audit.run();
151 151
152 function runTest(options) { 152 function runTest(should, options) {
153 // To test if negative frequencies work, create two oscillators. One 153 // To test if negative frequencies work, create two oscillators. One
154 // has a positive frequency and the other has a negative frequency. 154 // has a positive frequency and the other has a negative frequency.
155 // Sum the oscillator outputs; the output should be zero because all of 155 // Sum the oscillator outputs; the output should be zero because all of
156 // the builtin oscillator types are odd functions of frequency. 156 // the builtin oscillator types are odd functions of frequency.
157 var context = new OfflineAudioContext(1, renderFrames, sampleRate); 157 var context = new OfflineAudioContext(1, renderFrames, sampleRate);
158 158
159 var oscPositive = context.createOscillator(); 159 var oscPositive = context.createOscillator();
160 var oscNegative = context.createOscillator(); 160 var oscNegative = context.createOscillator();
161 161
162 oscPositive.type = options.type; 162 oscPositive.type = options.type;
(...skipping 13 matching lines...) Expand all
176 176
177 oscPositive.connect(context.destination); 177 oscPositive.connect(context.destination);
178 oscNegative.connect(context.destination); 178 oscNegative.connect(context.destination);
179 179
180 oscPositive.start(); 180 oscPositive.start();
181 oscNegative.start(); 181 oscNegative.start();
182 182
183 return context.startRendering().then(function (buffer) { 183 return context.startRendering().then(function (buffer) {
184 var result = buffer.getChannelData(0); 184 var result = buffer.getChannelData(0);
185 185
186 var zero = new Float32Array(result.length); 186 should(result, options.message)
187 zero.fill(0); 187 .beCloseToArray(new Float32Array(result.length), {
188 Should(options.message, result, { 188 absoluteThreshold: options.threshold || 0
189 verbose: true 189 });
190 }).beCloseToArray(zero, options.threshold || 0);
191 }); 190 });
192 } 191 }
193 </script> 192 </script>
194 </body> 193 </body>
195 </html> 194 </html>
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