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| 1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> | |
| 2 | |
| 3 <!-- | |
| 4 Create an oscillator of each type and verify that the type is set correctly. | |
| 5 --> | |
| 6 <html> | |
| 7 <head> | |
| 8 <script src="../resources/js-test.js"></script> | |
| 9 <script src="resources/compatibility.js"></script> | |
| 10 <script src="resources/audit-util.js"></script> | |
| 11 <script src="resources/audio-testing.js"></script> | |
| 12 </head> | |
| 13 | |
| 14 <body> | |
| 15 <div id="description"></div> | |
| 16 <div id="console"></div> | |
| 17 | |
| 18 <script> | |
| 19 description("Basic test of setting Oscillator node types."); | |
| 20 | |
| 21 var sampleRate = 44100; | |
| 22 var renderLengthSeconds = 0.25; | |
| 23 | |
| 24 var oscTypes = ["sine", "square", "sawtooth", "triangle", "custom"]; | |
| 25 | |
| 26 function runTest() | |
| 27 { | |
| 28 if (window.testRunner) { | |
| 29 testRunner.dumpAsText(); | |
| 30 testRunner.waitUntilDone(); | |
| 31 } | |
| 32 | |
| 33 window.jsTestIsAsync = true; | |
| 34 | |
| 35 // Create offline audio context. | |
| 36 var context = new OfflineAudioContext(2, sampleRate * renderLengthSeconds, s
ampleRate); | |
| 37 var osc = context.createOscillator(); | |
| 38 | |
| 39 // Set each possible oscillator type (except CUSTOM) and verify that the typ
e is correct. | |
| 40 // Here we're setting the type using WebIDL enum values which are strings. | |
| 41 for (var k = 0; k < oscTypes.length - 1; ++k) { | |
| 42 osc.type = oscTypes[k]; | |
| 43 Should("osc.type = '" + oscTypes[k] + "'", osc.type).beEqualTo(oscTypes[
k]); | |
| 44 } | |
| 45 | |
| 46 // Verify that setting a custom type directly does not set the custom type.
This test has to be | |
| 47 // done before using setPeriodicWave. | |
| 48 | |
| 49 Should("osc.type = 'custom'", function () { | |
| 50 osc.type = "custom"; | |
| 51 }).throw('InvalidStateError'); | |
| 52 | |
| 53 // Now set a custom oscillator | |
| 54 var coeffA = new Float32Array([0, 1, 0.5]); | |
| 55 var coeffB = new Float32Array([0, 0, 0]); | |
| 56 var wave = context.createPeriodicWave(coeffA, coeffB); | |
| 57 | |
| 58 Should("osc.setPeriodicWave(wave)", function () { | |
| 59 osc.setPeriodicWave(wave); | |
| 60 }).notThrow(); | |
| 61 Should("osc.type", osc.type).beEqualTo("custom"); | |
| 62 | |
| 63 // Check that numerical values are no longer supported | |
| 64 var oldType = osc.type; | |
| 65 osc.type = 0; | |
| 66 Should("osc.type = 0", osc.type).notBeEqualTo(0); | |
| 67 Should("osc.type", osc.type).beEqualTo(oldType); | |
| 68 | |
| 69 finishJSTest(); | |
| 70 } | |
| 71 | |
| 72 runTest(); | |
| 73 successfullyParsed = true; | |
| 74 | |
| 75 </script> | |
| 76 | |
| 77 | |
| 78 </body> | |
| 79 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
