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+<!DOCTYPE html>
+<html>
+ <head>
+ <title>
+ Test Scheduled Sources with Huge Time Limits
+ </title>
+ <script src="/resources/testharness.js"></script>
+ <script src="/resources/testharnessreport.js"></script>
+ <script src="/webaudio/resources/audit-util.js"></script>
+ <script src="/webaudio/resources/audit.js"></script>
+ <script src="/webaudio/resources/audioparam-testing.js"></script>
+ </head>
+ <body>
+ <script id="layout-test-code">
+ let sampleRate = 48000;
+ let renderFrames = 1000;
+
+ let audit = Audit.createTaskRunner();
+
+ audit.define('buffersource: huge stop time', (task, should) => {
+ // We only need to generate a small number of frames for this test.
+ let context = new OfflineAudioContext(1, renderFrames, sampleRate);
+ let src = context.createBufferSource();
+
+ // Constant source of amplitude 1, looping.
+ src.buffer = createConstantBuffer(context, 1, 1);
+ src.loop = true;
+
+ // Create the graph and go!
+ let endTime = 1e300;
+ src.connect(context.destination);
+ src.start();
+ src.stop(endTime);
+
+ context.startRendering()
+ .then(function(resultBuffer) {
+ let result = resultBuffer.getChannelData(0);
+ should(
+ result, 'Output from AudioBufferSource.stop(' + endTime + ')')
+ .beConstantValueOf(1);
+ })
+ .then(() => task.done());
+ });
+
+
+ audit.define('oscillator: huge stop time', (task, should) => {
+ // We only need to generate a small number of frames for this test.
+ let context = new OfflineAudioContext(1, renderFrames, sampleRate);
+ let src = context.createOscillator();
+
+ // Create the graph and go!
+ let endTime = 1e300;
+ src.connect(context.destination);
+ src.start();
+ src.stop(endTime);
+
+ context.startRendering()
+ .then(function(resultBuffer) {
+ let result = resultBuffer.getChannelData(0);
+ // The buffer should not be empty. Just find the max and verify
+ // that it's not zero.
+ let max = Math.max.apply(null, result);
+ should(
+ max, 'Peak amplitude from oscillator.stop(' + endTime + ')')
+ .beGreaterThan(0);
+ })
+ .then(() => task.done());
+ });
+
+
+ audit.run();
+ </script>
+ </body>
+</html>