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Issue 2780433005: Convert AudioParam 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 <script src="../resources/audioparam-testing.js"></script> 8 <script src="../resources/audioparam-testing.js"></script>
9 <title>Test Sampling for SetTargetAtTime</title> 9 <title>Test Sampling for SetTargetAtTime</title>
10 </head> 10 </head>
11 11
12 <body> 12 <body>
13 <script> 13 <script>
14 14
15 // Some slow sample rate, but otherwise arbitrary. 15 // Some slow sample rate, but otherwise arbitrary.
16 var sampleRate = 12800; 16 var sampleRate = 12800;
17 17
18 // Time constant for setTargetValue. Make it short, but is otherwise arbit rary. 18 // Time constant for setTargetValue. Make it short, but is otherwise arbit rary.
19 var timeConstant = 10 / sampleRate; 19 var timeConstant = 10 / sampleRate;
20 20
21 // Defaut initial gain for test. Arbitrary, but we want it large so the c hanges look large, 21 // Defaut initial gain for test. Arbitrary, but we want it large so the c hanges look large,
22 // even if the relative change isn't. 22 // even if the relative change isn't.
23 var initialGain = 10000; 23 var initialGain = 10000;
24 24
25 var audit = Audit.createTaskRunner(); 25 var audit = Audit.createTaskRunner();
26 26
27 // Test sampling of setTargetAtTime that starts at |startFrame|. A gain n ode is used for 27 // Test sampling of setTargetAtTime that starts at |startFrame|. A gain n ode is used for
28 // testing. |initializeGainFunction| initializes the gain value. 28 // testing. |initializeGainFunction| initializes the gain value.
29 function doTest(message, startFrame, threshold, initializeGainFunction) { 29 function doTest(should, message, startFrame, threshold, initializeGainFunc tion) {
30 var context = new OfflineAudioContext(1, 256, sampleRate); 30 var context = new OfflineAudioContext(1, 256, sampleRate);
31 var source = context.createBufferSource(); 31 var source = context.createBufferSource();
32 var b = context.createBuffer(1, 1, sampleRate); 32 var b = context.createBuffer(1, 1, sampleRate);
33 b.getChannelData(0)[0] = 1; 33 b.getChannelData(0)[0] = 1;
34 source.buffer = b; 34 source.buffer = b;
35 source.loop = true; 35 source.loop = true;
36 36
37 var gain = context.createGain(); 37 var gain = context.createGain();
38 // Initialize the value of the gain node appropriately. 38 // Initialize the value of the gain node appropriately.
39 initializeGainFunction(gain); 39 initializeGainFunction(gain);
40 gain.gain.setTargetAtTime(0, startFrame / sampleRate, timeConstant); 40 gain.gain.setTargetAtTime(0, startFrame / sampleRate, timeConstant);
41 41
42 source.connect(gain); 42 source.connect(gain);
43 gain.connect(context.destination); 43 gain.connect(context.destination);
44 44
45 source.start(); 45 source.start();
46 46
47 return context.startRendering().then(function (resultBuffer) { 47 return context.startRendering().then(function (resultBuffer) {
48 // Verify that the sampling of the setTargetAtTime automation was done correctly. We just 48 // Verify that the sampling of the setTargetAtTime automation was done correctly. We just
49 // look at the sample just past the start of the automation. 49 // look at the sample just past the start of the automation.
50 var resultData = resultBuffer.getChannelData(0); 50 var resultData = resultBuffer.getChannelData(0);
51 // Compute the true result at the frame just past startFrame and verif y that the actual 51 // Compute the true result at the frame just past startFrame and verif y that the actual
52 // rendered result is within |threshold| of the expected value. 52 // rendered result is within |threshold| of the expected value.
53 var frame = Math.ceil(startFrame); 53 var frame = Math.ceil(startFrame);
54 var v = 10000 * Math.exp(-(frame / sampleRate - startFrame / sampleRat e) / timeConstant); 54 var v = 10000 * Math.exp(-(frame / sampleRate - startFrame / sampleRat e) / timeConstant);
55 Should(message + ": Target value at frame " + frame, resultData[frame] ).beCloseTo(v, threshold); 55 should(resultData[frame], message + ": Target value at frame " +
56 frame).beCloseTo(v, {
57 threshold: threshold
58 });
56 }); 59 });
57 } 60 }
58 61
59 function initializeGainBySetter (g) { 62 function initializeGainBySetter (g) {
60 g.gain.value = initialGain; 63 g.gain.value = initialGain;
61 } 64 }
62 65
63 function initializeGainBySetValue (g) { 66 function initializeGainBySetValue (g) {
64 g.gain.setValueAtTime(initialGain, 0); 67 g.gain.setValueAtTime(initialGain, 0);
65 } 68 }
66 69
67 audit.defineTask("setValue;128.1", function (done) { 70 audit.define("setValue;128.1", (task, should) => {
68 doTest("Initialize by setValueAtTime", 128.1, 3.6029e-8, initializeGainB ySetValue).then(done); 71 doTest(should, "Initialize by setValueAtTime", 128.1, 3.6029e-8,
72 initializeGainBySetValue)
73 .then(() => task.done());
69 }); 74 });
70 75
71 audit.defineTask("setValue;0.1", function (done) { 76 audit.define("setValue;0.1", (task, should) => {
72 doTest("Initialize by setValueAtTime", 0.1, 3.6029e-8, initializeGainByS etValue).then(done); 77 doTest(should, "Initialize by setValueAtTime", 0.1, 3.6029e-8,
78 initializeGainBySetValue)
79 .then(() => task.done());
73 }); 80 });
74 81
75 audit.defineTask("setValue;0.0", function (done) { 82 audit.define("setValue;0.0", (task, should) => {
76 doTest("Initialize by setValueAtTime", 0, 3.6029e-8, initializeGainBySet Value).then(done); 83 doTest(should, "Initialize by setValueAtTime", 0, 3.6029e-8,
84 initializeGainBySetValue)
85 .then(() => task.done());
77 }); 86 });
78 87
79 audit.defineTask("setter;128.1", function (done) { 88 audit.define("setter;128.1", (task, should) => {
80 doTest("Initialize by setter", 128.1, 3.6029e-8, initializeGainBySetter) .then(done); 89 doTest(should, "Initialize by setter", 128.1, 3.6029e-8,
90 initializeGainBySetter)
91 .then(() => task.done());
81 }); 92 });
82 93
83 audit.defineTask("setter;0.1", function (done) { 94 audit.define("setter;0.1", (task, should) => {
84 doTest("Initialize by setter", 0.1, 3.6029e-8, initializeGainBySetter).t hen(done); 95 doTest(should, "Initialize by setter", 0.1, 3.6029e-8,
96 initializeGainBySetter)
97 .then(() => task.done());
85 }); 98 });
86 99
87 audit.defineTask("setter;0.0", function (done) { 100 audit.define("setter;0.0", (task, should) => {
88 doTest("Initialize by setter", 0, 0, initializeGainBySetter).then(done); 101 doTest(should, "Initialize by setter", 0, 0, initializeGainBySetter)
102 .then(() => task.done());
89 }); 103 });
90 104
91 105 audit.run();
92 audit.defineTask("finish", function (done) {
93 done();
94 });
95
96 audit.runTasks();
97 successfullyParsed = true;
98 </script> 106 </script>
99 </body> 107 </body>
100 </html> 108 </html>
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