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Issue 2895963003: Apply layout-test-tidy to LayoutTests/webaudio (Closed)
Patch Set: Created 3 years, 7 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2
3 <!-- 2 <!--
4 Tests that AudioChannelSplitter works correctly. 3 Tests that AudioChannelSplitter works correctly.
5 --> 4 -->
5 <html>
6 <head>
7 <title>
8 audiochannelsplitter.html
9 </title>
10 <script src="../../resources/testharness.js"></script>
11 <script src="../../resources/testharnessreport.js"></script>
12 <script src="../resources/audit-util.js"></script>
13 <script src="../resources/audit.js"></script>
14 </head>
15 <body>
16 <script id="layout-test-code">
17 let audit = Audit.createTaskRunner();
6 18
7 <html> 19 let sampleRate = 44100.0;
8 <head> 20 let lengthInSampleFrames = 512;
9 <script src="../../resources/testharness.js"></script>
10 <script src="../../resources/testharnessreport.js"></script>
11 <script src="../resources/audit-util.js"></script>
12 <script src="../resources/audit.js"></script>
13 </head>
14 21
15 <body> 22 let context = 0;
23 let sourceBuffer;
24 let sourceNode;
25 let channelSplitter;
26 let channelMerger;
16 27
17 <script> 28 function createStereoBufferWithDCOffset(length, sampleRate, offset) {
18 var audit = Audit.createTaskRunner(); 29 let buffer = context.createBuffer(2, length, sampleRate);
30 let n = buffer.length;
31 let channelL = buffer.getChannelData(0);
32 let channelR = buffer.getChannelData(1);
19 33
20 var sampleRate = 44100.0; 34 for (let i = 0; i < n; ++i) {
21 var lengthInSampleFrames = 512; 35 channelL[i] = offset;
36 channelR[i] = -1.0 * offset;
37 }
22 38
23 var context = 0; 39 return buffer;
24 var sourceBuffer; 40 }
25 var sourceNode;
26 var channelSplitter;
27 var channelMerger;
28 41
29 function createStereoBufferWithDCOffset(length, sampleRate, offset) { 42 // checkResult() checks that the rendered buffer is stereo and that the
30 var buffer = context.createBuffer(2, length, sampleRate); 43 // left channel is all -1 and right channel all +1. In other words, we've
31 var n = buffer.length; 44 // reversed the order of the two channels.
32 var channelL = buffer.getChannelData(0); 45 function checkResult(buffer, should) {
33 var channelR = buffer.getChannelData(1); 46 let success = true;
34 47
35 for (var i = 0; i < n; ++i) { 48 if (buffer.numberOfChannels == 2) {
36 channelL[i] = offset; 49 let bufferDataL = buffer.getChannelData(0);
37 channelR[i] = -1.0 * offset; 50 let bufferDataR = buffer.getChannelData(1);
38 }
39 51
40 return buffer; 52 success = should(bufferDataL, 'Left channel').beConstantValueOf(-1) &&
41 } 53 success;
54 success = should(bufferDataR, 'Right channel').beConstantValueOf(1) &&
55 success;
56 } else {
57 success = false;
58 }
42 59
43 // checkResult() checks that the rendered buffer is stereo and that the left cha nnel is all -1 and right channel all +1. 60 should(success, 'Left and right channels were exchanged')
44 // In other words, we've reversed the order of the two channels. 61 .message('correctly', 'incorrectly');
45 function checkResult(buffer, should) { 62 }
46 63
47 var success = true; 64 audit.define(
65 {
66 label: 'construction',
67 description: 'Construction of ChannelSplitterNode'
68 },
69 function(task, should) {
48 70
49 if (buffer.numberOfChannels == 2) { 71 // Create stereo offline audio context.
50 var bufferDataL = buffer.getChannelData(0); 72 context =
51 var bufferDataR = buffer.getChannelData(1); 73 new OfflineAudioContext(2, lengthInSampleFrames, sampleRate);
52 74
53 success = should(bufferDataL, "Left channel") 75 let splitternode;
54 .beConstantValueOf(-1) && success; 76 should(() => {
55 success = should(bufferDataR, "Right channel") 77 let splitternode = context.createChannelSplitter(0);
56 .beConstantValueOf(1) && success; 78 }, 'createChannelSplitter(0)').throw('IndexSizeError');
57 } else {
58 success = false;
59 }
60 79
61 should(success, "Left and right channels were exchanged") 80 should(() => {
62 .message("correctly", "incorrectly"); 81 splitternode = context.createChannelSplitter(33);
63 } 82 }, 'createChannelSplitter(33)').throw('IndexSizeError');
64 83
65 audit.define({ 84 should(() => {
66 label: "construction", 85 splitternode = context.createChannelSplitter(32);
67 description: "Construction of ChannelSplitterNode" 86 }, 'splitternode = context.createChannelSplitter(32)').notThrow();
68 }, function (task, should) {
69 87
70 // Create stereo offline audio context. 88 should(splitternode.numberOfOutputs, 'splitternode.numberOfOutputs')
71 context = new OfflineAudioContext(2, lengthInSampleFrames, sampleRate); 89 .beEqualTo(32);
90 should(splitternode.numberOfInputs, 'splitternode.numberOfInputs')
91 .beEqualTo(1)
72 92
73 var splitternode; 93 should(() => {
74 should(() => { 94 splitternode = context.createChannelSplitter();
75 var splitternode = context.createChannelSplitter(0); 95 }, 'splitternode = context.createChannelSplitter()').notThrow();
76 }, "createChannelSplitter(0)")
77 .throw("IndexSizeError");
78 96
79 should(() => { 97 should(splitternode.numberOfOutputs, 'splitternode.numberOfOutputs')
80 splitternode = context.createChannelSplitter(33); 98 .beEqualTo(6);
81 }, "createChannelSplitter(33)")
82 .throw("IndexSizeError");
83 99
84 should(() => { 100 task.done();
85 splitternode = context.createChannelSplitter(32); 101 });
86 }, "splitternode = context.createChannelSplitter(32)")
87 .notThrow();
88 102
89 should(splitternode.numberOfOutputs, 103 audit.define(
90 "splitternode.numberOfOutputs") 104 {
91 .beEqualTo(32); 105 label: 'functionality',
92 should(splitternode.numberOfInputs, 106 description: 'Functionality of ChannelSplitterNode'
93 "splitternode.numberOfInputs") 107 },
94 .beEqualTo(1) 108 function(task, should) {
95 109
96 should(() => { 110 // Create a stereo buffer, with all +1 values in left channel, all
97 splitternode = context.createChannelSplitter(); 111 // -1 in right channel.
98 }, "splitternode = context.createChannelSplitter()") 112 sourceBuffer = createStereoBufferWithDCOffset(
99 .notThrow(); 113 lengthInSampleFrames, sampleRate, 1);
100 114
101 should(splitternode.numberOfOutputs, 115 sourceNode = context.createBufferSource();
102 "splitternode.numberOfOutputs") 116 sourceNode.buffer = sourceBuffer;
103 .beEqualTo(6);
104 117
105 task.done(); 118 // Create a channel splitter and connect it so that it split the
106 }); 119 // stereo stream into two mono streams.
120 channelSplitter = context.createChannelSplitter(2);
121 sourceNode.connect(channelSplitter);
107 122
108 audit.define({ 123 // Create a channel merger to merge the output of channel splitter.
109 label: "functionality", 124 channelMerger = context.createChannelMerger();
110 description: "Functionality of ChannelSplitterNode" 125 channelMerger.connect(context.destination);
111 }, function (task, should) {
112 126
113 // Create a stereo buffer, with all +1 values in left channel, all -1 in rig ht channel. 127 // When merging, exchange channel layout: left->right, right->left
114 sourceBuffer = createStereoBufferWithDCOffset(lengthInSampleFrames, sampleRa te, 1); 128 channelSplitter.connect(channelMerger, 0, 1);
129 channelSplitter.connect(channelMerger, 1, 0);
115 130
116 sourceNode = context.createBufferSource(); 131 sourceNode.start(0);
117 sourceNode.buffer = sourceBuffer;
118 132
119 // Create a channel splitter and connect it so that it split the stereo stre am into two mono streams. 133 context.startRendering()
120 channelSplitter = context.createChannelSplitter(2); 134 .then(buffer => checkResult(buffer, should))
121 sourceNode.connect(channelSplitter); 135 .then(task.done.bind(task));
136 });
122 137
123 // Create a channel merger to merge the output of channel splitter. 138 audit.run();
124 channelMerger = context.createChannelMerger(); 139 </script>
125 channelMerger.connect(context.destination); 140 </body>
126
127 // When merging, exchange channel layout: left->right, right->left
128 channelSplitter.connect(channelMerger, 0, 1);
129 channelSplitter.connect(channelMerger, 1, 0);
130
131 sourceNode.start(0);
132
133 context.startRendering()
134 .then(buffer => checkResult(buffer, should))
135 .then(task.done.bind(task));
136 });
137
138 audit.run();
139
140 </script>
141
142 </body>
143 </html> 141 </html>
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