chromium/third_party/blink/web_tests/webaudio/Oscillator/osc-sweep-snr-sine.html

<!DOCTYPE html>
<html>
  <head>
    <title>
      Test Oscillator Node: sine
    </title>
    <script src="../../resources/testharness.js"></script>
    <script src="../../resources/testharnessreport.js"></script>
    <script src="../resources/audit-util.js"></script>
    <script src="../resources/audit.js"></script>
    <script src="../resources/buffer-loader.js"></script>
    <script src="../resources/oscillator-testing.js"></script>
    <script src="../resources/audio-file-utils.js"></script>
  </head>
  <body>
    <script id="layout-test-code">
      let audit = Audit.createTaskRunner();
      let tester = OscillatorTestingUtils;

      audit.define('test', (task, should) => {
        let context = new OfflineAudioContext(
            1, tester.sampleRate * tester.lengthInSeconds, tester.sampleRate);

        // The thresholds are experimentally determined.
        tester.setThresholds({snr: 129.72, maxDiff: 3.7551e-6});
        tester.runTest(
            context, 'sine', 'Sine Oscillator with Exponential Sweep', task,
            should);
      });

      audit.run();
    </script>
  </body>
</html>