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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html')
| -rw-r--r-- | testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html b/testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html new file mode 100644 index 000000000..a49ae875b --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-constantsourcenode-interface/test-constantsourcenode.html @@ -0,0 +1,135 @@ +<!doctype html> +<meta charset=utf-8> +<title>Test the ConstantSourceNode Interface</title> +<script src=/resources/testharness.js></script> +<script src=/resources/testharnessreport.js></script> +<script> +test(function(t) { + var ac = new AudioContext(); + + var csn = ac.createConstantSource(); + assert_true(csn.offset.value == 1.0, "Default offset is 1.0"); + + csn = new ConstantSourceNode(ac); + assert_true(csn.offset.value == 1.0, "Default offset is 1.0"); + + csn = new ConstantSourceNode(ac, {offset: -0.25}); + assert_true(csn.offset.value == -0.25, "Offset can be set during construction"); +}, "ConstantSourceNode can be constructed"); + +test(function(t) { + var ac = new AudioContext(); + + var csn = ac.createConstantSource(); + + assert_throws("InvalidStateError", function() { + csn.stop(1); + }, "Start must be called before stop"); + + assert_throws("NotSupportedError", function() { + csn.start(-1); + }, "When can not be negative"); + + csn.start(0); + assert_throws("NotSupportedError", function() { + csn.stop(-1); + }, "When can not be negative"); +}, "ConstantSourceNode stop and start"); + +async_test(function(t) { + var ac = new OfflineAudioContext(1, 2048, 44100); + var csn = ac.createConstantSource(); + csn.connect(ac.destination); + csn.start() + csn.stop(1024/44100) + csn.onended = function(e) { + t.step(function() { + assert_true(e.type == "ended", "Event type should be 'ended', received: " + e.type); + }); + t.done(); + } + ac.startRendering(); +}, "ConstantSourceNode onended event"); + +async_test(function(t) { + var ac = new OfflineAudioContext(1, 2048, 44100); + var csn = ac.createConstantSource(); + csn.connect(ac.destination); + csn.start(512/44100) + csn.stop(1024/44100) + + ac.oncomplete = function(e) { + t.step(function() { + var result = e.renderedBuffer.getChannelData(0); + for (var i = 0; i < 2048; ++i) { + if (i >= 512 && i < 1024) { + assert_true(result[i] == 1.0, "sample " + i + " should equal 1.0"); + } else { + assert_true(result[i] == 0.0, "sample " + i + " should equal 0.0"); + } + } + }); + t.done(); + } + + ac.startRendering(); +}, "ConstantSourceNode start and stop when work"); + +async_test(function(t) { + var ac = new OfflineAudioContext(1, 2048, 44100); + var csn = ac.createConstantSource(); + csn.offset.value = 0.25; + csn.connect(ac.destination); + csn.start() + + ac.oncomplete = function(e) { + t.step(function() { + var result = e.renderedBuffer.getChannelData(0); + for (var i = 0; i < 2048; ++i) { + assert_true(result[i] == 0.25, "sample " + i + " should equal 0.25"); + } + }); + t.done(); + } + + ac.startRendering(); +}, "ConstantSourceNode with no automation"); + +async_test(function(t) { + var ac = new OfflineAudioContext(1, 2048, 44100); + + var timeConstant = 2.0; + var offsetStart = 0.25; + var offsetEnd = 0.1; + + var csn = ac.createConstantSource(); + csn.offset.value = offsetStart; + csn.offset.setTargetAtTime(offsetEnd, 1024/ac.sampleRate, timeConstant); + csn.connect(ac.destination); + csn.start() + + ac.oncomplete = function(e) { + t.step(function() { + // create buffer with expected values + var buffer = ac.createBuffer(1, 2048, ac.sampleRate); + for (var i = 0; i < 2048; ++i) { + if (i < 1024) { + buffer.getChannelData(0)[i] = offsetStart; + } else { + time = (i-1024)/ac.sampleRate; + buffer.getChannelData(0)[i] = offsetEnd + (offsetStart - offsetEnd)*Math.exp(-time/timeConstant); + } + } + + var result = e.renderedBuffer.getChannelData(0); + var expected = buffer.getChannelData(0); + for (var i = 0; i < 2048; ++i) { + assert_true(Math.abs(result[i] - expected[i]) < 1e-6, "sample " + i + " should equal " + expected[i]); + } + }); + t.done(); + } + + ac.startRendering(); +}, "ConstantSourceNode with automation"); +</script> |