third_party/WebKit/LayoutTests/webaudio/constructor/audiobuffersource.html - Issue 2102133002: Add constructors for WebAudio nodes

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Issue 2102133002: Add constructors for WebAudio nodes (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Rebase Created 4 years, 3 months ago

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	1 <!doctype html>

	2 <html>

	3 <head>

	4 <title>Test Constructor: AudioBufferSource</title>

	5 <script src="../../resources/testharness.js"></script>

	6 <script src="../../resources/testharnessreport.js"></script>

	7 <script src="../resources/audio-testing.js"></script>

	8 <script src="audionodeoptions.js"></script>

	9 </head>

	10

	11 <body>

	12 <script>

	13 var context;

	14

	15 var audit = Audit.createTaskRunner();

	16

	17 audit.defineTask("initialize", function (taskDone) {

	18 Should("context = new OfflineAudioContext(...)", function () {

	19 context = new OfflineAudioContext(1, 1, 48000);

	20 }).notThrow();

	21

	22 taskDone();

	23 });

	24

	25 audit.defineTask("invalid constructor", function (taskDone) {

	26 var node;

	27 var success = true;

	28

	29 success = Should("new AudioBufferSourceNode()", function () {

	30 node = new AudioBufferSourceNode();

	31 }).throw("TypeError");

	32 success = Should("new AudioBufferSourceNode(1)", function () {

	33 node = new AudioBufferSourceNode(1) && success;

	34 }).throw("TypeError");

	35 success = Should("new AudioBufferSourceNode(context, 42)", function () {

	36 node = new AudioBufferSourceNode(context, 42) && success;

	37 }).throw("TypeError");

	38

	39 Should("Invalid constructors", success)

	40 .summarize(

	41 "correctly threw errors",

	42 "did not throw errors in all cases");

	43

	44 taskDone();

	45 });

	46

	47 audit.defineTask("default constructor", function (taskDone) {

	48 var node;

	49 var success = true;

	50

	51 success = Should("node = new AudioBufferSourceNode(context)", function ( ) {

	52 node = new AudioBufferSourceNode(context);

	53 }).notThrow() && success;

	54

	55 success = Should("node instanceof AudioBufferSourceNode",

	56 node instanceof AudioBufferSourceNode).beEqualTo(true) && success;

	57

	58 success = Should("node.buffer === null", node.buffer === null)

	59 .beEqualTo(true) && success;

	60

	61 // This node using the factory method is used as a reference for the

	62 // defautl values.

	63 var factoryNode = context.createBufferSource();

	64

	65 var testAttributes = ["buffer", "detune", "loop", "loopEnd", "loopStart" ,

	66 "playbackRate"];

	67

	68 for (var index in testAttributes) {

	69 var name = testAttributes[index];

	70

	71 if (node[name] instanceof AudioParam) {

	72 success = Should("node." + name + ".value", node[name].value)

	73 .beEqualTo(factoryNode[name].value) && success;

	74 } else {

	75 success = Should("node." + name, node[name])

	76 .beEqualTo(factoryNode[name]) && success;

	77 }

	78 }

	79

	80 Should("AudioBufferSourceNode constructed", success)

	81 .summarize("correctly", "incorrectly");

	82

	83 taskDone();

	84 });

	85

	86 audit.defineTask("constructor options", function (taskDone) {

	87 var node;

	88 var success = true;

	89

	90 var buffer = context.createBuffer(2, 1000, context.sampleRate);

	91

	92 var options = {

	93 buffer: buffer,

	94 detune: .5,

	95 loop: true,

	96 loopEnd: (buffer.length / 2) / context.sampleRate,

	97 loopStart: 5 / context.sampleRate,

	98 playbackRate: .75

	99 }

	100

	101 message = "node = new AudioBufferSourceNode(context, {";

	102 message += "buffer: buffer";

	103 message += ", detune: " + options.detune;

	104 message += ", loop: " + options.loop;

	105 message += ", loopEnd: " + options.loopEnd;

	106 message += ", loopStart: " + options.loopStart;

	107 message += ", playbackRate: " + options.playbackRate;

	108 message += "})";

	109

	110 success = Should(message, function () {

	111 node = new AudioBufferSourceNode(context, options);

	112 }).notThrow();

	113

	114 var factoryNode = context.createBufferSource();

	115 factoryNode.buffer = options.buffer;

	116 factoryNode.detune.value = options.detune;

	117 factoryNode.loop = options.loop;

	118 factoryNode.loopEnd = options.loopEnd;

	119 factoryNode.loopStart = options.loopStart;

	120 factoryNode.playbackRate.value = options.playbackRate;

	121

	122 success = Should("node.buffer === buffer", node.buffer === buffer)

	123 .beEqualTo(true) && success;

	124 success = Should("node.detune.value", node.detune.value)

	125 .beEqualTo(factoryNode.detune.value) && success;

	126 success = Should("node.loop", node.loop)

	127 .beEqualTo(factoryNode.loop) && success;

	128 success = Should("node.loopEnd", node.loopEnd)

	129 .beEqualTo(factoryNode.loopEnd) && success;

	130 success = Should("node.loopStart", node.loopStart)

	131 .beEqualTo(factoryNode.loopStart) && success;

	132 success = Should("node.playbackRate.value", node.playbackRate.value)

	133 .beEqualTo(factoryNode.playbackRate.value) && success;

	134

	135 Should("AudioBufferSource with options cosntructed", success)

	136 .summarize("correctly", "incorrectly");

	137

	138 taskDone();

	139 });

	140

	141 audit.runTasks();

	142 </script>

	143 </body>

	144 </html>

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