зеркало из https://github.com/mozilla/gecko-dev.git
85 строки
2.7 KiB
HTML
85 строки
2.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test DelayNode</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<pre id="test">
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<script src="webaudio.js" type="text/javascript"></script>
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<script class="testbody" type="text/javascript">
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(function() {
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SpecialPowers.setBoolPref("media.webaudio.enabled", true);
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var context = new AudioContext();
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var buffer = context.createBuffer(1, 2048, context.sampleRate);
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for (var i = 0; i < 2048; ++i) {
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buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
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}
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var destination = context.destination;
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var source = context.createBufferSource();
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var delay = context.createDelay();
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source.buffer = buffer;
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source.connect(delay);
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delay.connect(destination);
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ok(delay.delayTime, "The audioparam member must exist");
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is(delay.delayTime.value, 0, "Correct initial value");
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is(delay.delayTime.defaultValue, 0, "Correct default value");
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is(delay.delayTime.minValue, 0, "Correct min value");
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is(delay.delayTime.maxValue, 1.0, "Correct max value");
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delay.delayTime.value = 0.5;
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is(delay.delayTime.value, 0.5, "Correct initial value");
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is(delay.delayTime.defaultValue, 0, "Correct default value");
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is(delay.delayTime.minValue, 0, "Correct min value");
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is(delay.delayTime.maxValue, 1.0, "Correct max value");
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var delay2 = context.createDelay(2);
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is(delay2.delayTime.value, 0, "Correct initial value");
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is(delay2.delayTime.defaultValue, 0, "Correct default value");
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is(delay2.delayTime.minValue, 0, "Correct min value");
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is(delay2.delayTime.maxValue, 2.0, "Correct max value");
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delay2.delayTime.value = 0.5;
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is(delay2.delayTime.value, 0.5, "Correct initial value");
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is(delay2.delayTime.defaultValue, 0, "Correct default value");
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is(delay2.delayTime.minValue, 0, "Correct min value");
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is(delay2.delayTime.maxValue, 2.0, "Correct max value");
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expectException(function() {
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context.createDelay(0);
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}, DOMException.NOT_SUPPORTED_ERR);
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expectException(function() {
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context.createDelay(3);
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}, DOMException.NOT_SUPPORTED_ERR);
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expectTypeError(function() {
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context.createDelay(NaN);
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}, DOMException.NOT_SUPPORTED_ERR);
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expectException(function() {
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context.createDelay(-1);
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}, DOMException.NOT_SUPPORTED_ERR);
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context.createDelay(1); // should not throw
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source.start(0);
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SimpleTest.executeSoon(function() {
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source.stop(0);
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source.disconnect();
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delay.disconnect();
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SpecialPowers.clearUserPref("media.webaudio.enabled");
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SimpleTest.finish();
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});
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});
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</script>
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</pre>
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</body>
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</html>
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