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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 <title>Test Negative AudioParam.exponentialRampToValueAtTime</title> 8 <title>Test Negative AudioParam.exponentialRampToValueAtTime</title>
9 </head> 9 </head>
10 10
11 <body> 11 <body>
12 <script> 12 <script>
13 13
14 var sampleRate = 48000; 14 var sampleRate = 48000;
15 15
16 var audit = Audit.createTaskRunner(); 16 var audit = Audit.createTaskRunner();
17 17
18 audit.defineTask("both negative values", function (done) { 18 audit.define("both negative values", (task, should) => {
19 var renderDuration = 0.125; 19 var renderDuration = 0.125;
20 20
21 // Create context with two channels. Channel 0 contains the positive-va lued exponential and 21 // Create context with two channels. Channel 0 contains the positive-va lued exponential and
22 // channel 1 contains the negative-valued exponential. We'll compare th e two channels to 22 // channel 1 contains the negative-valued exponential. We'll compare th e two channels to
23 // verify that they're the same, as they should be. 23 // verify that they're the same, as they should be.
24 var context = new OfflineAudioContext(2, renderDuration * sampleRate, sa mpleRate); 24 var context = new OfflineAudioContext(2, renderDuration * sampleRate, sa mpleRate);
25 var source = context.createBufferSource(); 25 var source = context.createBufferSource();
26 source.buffer = createConstantBuffer(context, 1, 1); 26 source.buffer = createConstantBuffer(context, 1, 1);
27 source.loop = true; 27 source.loop = true;
28 28
(...skipping 16 matching lines...) Expand all
45 gn.gain.exponentialRampToValueAtTime(-2, renderDuration); 45 gn.gain.exponentialRampToValueAtTime(-2, renderDuration);
46 46
47 source.start(); 47 source.start();
48 48
49 context.startRendering().then(function (resultBuffer) { 49 context.startRendering().then(function (resultBuffer) {
50 // Verify that channels have the same values, except for the sign. 50 // Verify that channels have the same values, except for the sign.
51 var expected = resultBuffer.getChannelData(0); 51 var expected = resultBuffer.getChannelData(0);
52 var actual = resultBuffer.getChannelData(1); 52 var actual = resultBuffer.getChannelData(1);
53 var inverted = expected.map(sample => -sample); 53 var inverted = expected.map(sample => -sample);
54 54
55 Should("Negative exponential ramp from -1 to -2", actual) 55 should(actual, "Negative exponential ramp from -1 to -2")
56 .beEqualToArray(inverted); 56 .beEqualToArray(inverted);
57 }).then(done); 57 }).then(() => task.done());
58 }); 58 });
59 59
60 audit.defineTask("negative-end", function (done) { 60 audit.define("negative-end", (task, should) => {
61 // Positive start value and negative end value should just do nothing. 61 // Positive start value and negative end value should just do nothing.
62 var renderDuration = 0.125; 62 var renderDuration = 0.125;
63 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate); 63 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate);
64 var source = context.createBufferSource(); 64 var source = context.createBufferSource();
65 source.buffer = createConstantBuffer(context, 1, 1); 65 source.buffer = createConstantBuffer(context, 1, 1);
66 source.loop = true; 66 source.loop = true;
67 67
68 // Gain node gp is for the positive-valued exponential ramp, and gn is f or the negative-valued 68 // Gain node gp is for the positive-valued exponential ramp, and gn is f or the negative-valued
69 // exponential ramp. 69 // exponential ramp.
70 var g = context.createGain(); 70 var g = context.createGain();
71 71
72 g.gain.setValueAtTime(2, 0); 72 g.gain.setValueAtTime(2, 0);
73 g.gain.exponentialRampToValueAtTime(-1, renderDuration); 73 g.gain.exponentialRampToValueAtTime(-1, renderDuration);
74 74
75 source.connect(g) 75 source.connect(g)
76 .connect(context.destination); 76 .connect(context.destination);
77 77
78 source.start(); 78 source.start();
79 79
80 context.startRendering().then(function (resultBuffer) { 80 context.startRendering().then(function (resultBuffer) {
81 var actual = resultBuffer.getChannelData(0); 81 var actual = resultBuffer.getChannelData(0);
82 82
83 Should("Exponential ramp from 2 to -1", actual) 83 should(actual, "Exponential ramp from 2 to -1")
84 .beConstantValueOf(2); 84 .beConstantValueOf(2);
85 }).then(done); 85 }).then(() => task.done());
86 }); 86 });
87 87
88 audit.defineTask("positive-end", function (done) { 88 audit.define("positive-end", (task, should) => {
89 // Positive start value and negative end value should just do nothing. 89 // Positive start value and negative end value should just do nothing.
90 var renderDuration = 0.125; 90 var renderDuration = 0.125;
91 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate); 91 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate);
92 var source = context.createBufferSource(); 92 var source = context.createBufferSource();
93 source.buffer = createConstantBuffer(context, 1, 1); 93 source.buffer = createConstantBuffer(context, 1, 1);
94 source.loop = true; 94 source.loop = true;
95 95
96 var g = context.createGain(); 96 var g = context.createGain();
97 97
98 g.gain.setValueAtTime(-1, 0); 98 g.gain.setValueAtTime(-1, 0);
99 g.gain.exponentialRampToValueAtTime(1, renderDuration); 99 g.gain.exponentialRampToValueAtTime(1, renderDuration);
100 100
101 source.connect(g) 101 source.connect(g)
102 .connect(context.destination); 102 .connect(context.destination);
103 source.start(); 103 source.start();
104 104
105 context.startRendering().then(function (resultBuffer) { 105 context.startRendering().then(function (resultBuffer) {
106 var actual = resultBuffer.getChannelData(0); 106 var actual = resultBuffer.getChannelData(0);
107 107
108 Should("Exponential ramp from -1 to 1", actual) 108 should(actual, "Exponential ramp from -1 to 1")
109 .beConstantValueOf(-1); 109 .beConstantValueOf(-1);
110 }).then(done); 110 }).then(() => task.done());
111 }); 111 });
112 112
113 audit.defineTask("propagate", function (done) { 113 audit.define("propagate", (task, should) => {
114 // Test propagation of ramp if the exponential ramp start and end values have opposite sign. 114 // Test propagation of ramp if the exponential ramp start and end values have opposite sign.
115 var renderDuration = 0.125; 115 var renderDuration = 0.125;
116 var linearRampEnd = renderDuration / 4; 116 var linearRampEnd = renderDuration / 4;
117 var exponentialRampEnd = renderDuration / 2; 117 var exponentialRampEnd = renderDuration / 2;
118 118
119 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate); 119 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa mpleRate);
120 var source = context.createBufferSource(); 120 var source = context.createBufferSource();
121 source.buffer = createConstantBuffer(context, 1, 1); 121 source.buffer = createConstantBuffer(context, 1, 1);
122 source.loop = true; 122 source.loop = true;
123 123
124 var g = context.createGain(); 124 var g = context.createGain();
125 125
126 g.gain.setValueAtTime(2, 0); 126 g.gain.setValueAtTime(2, 0);
127 g.gain.linearRampToValueAtTime(-1, linearRampEnd); 127 g.gain.linearRampToValueAtTime(-1, linearRampEnd);
128 g.gain.exponentialRampToValueAtTime(1, exponentialRampEnd); 128 g.gain.exponentialRampToValueAtTime(1, exponentialRampEnd);
129 129
130 source.connect(g) 130 source.connect(g)
131 .connect(context.destination); 131 .connect(context.destination);
132 source.start(); 132 source.start();
133 133
134 context.startRendering().then(function (resultBuffer) { 134 context.startRendering().then(function (resultBuffer) {
135 var actual = resultBuffer.getChannelData(0); 135 var actual = resultBuffer.getChannelData(0);
136 136
137 // Since the start value of the exponential ramp is -1 and the end val ue is 1, the ramp 137 // Since the start value of the exponential ramp is -1 and the end val ue is 1, the ramp
138 // should just propagate -1 from the end of the linear ramp "forever". 138 // should just propagate -1 from the end of the linear ramp "forever".
139 var endFrame = Math.ceil(linearRampEnd * sampleRate); 139 var endFrame = Math.ceil(linearRampEnd * sampleRate);
140 Should("Exponential ramp from -1 to 1 after the end of the linear ramp ", 140 should(actual.slice(endFrame),
141 actual.slice(endFrame)) 141 "Exponential ramp from -1 to 1 after the end of the linear ramp")
142 .beConstantValueOf(-1); 142 .beConstantValueOf(-1);
143 }).then(done); 143 }).then(() => task.done());
144 144
145 }); 145 });
146 146
147 audit.defineTask("finish", function (done) { 147 audit.run();
148 done();
149 });
150
151 audit.runTasks();
152 </script> 148 </script>
153 </body> 149 </body>
154 </html> 150 </html>
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