accelerometer/LinearAccelerationSensor-shake-threshold-manual.https.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>LinearAccelerationSensor Shake Threshold Test</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<link rel="help" href="https://w3c.github.io/accelerometer/#examples">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<p class="instructions">
  Shake gesture along x axis of the device.
</p>
<script>

setup({explicit_timeout: true});

async_test(t => {
  const shakeThreshold = 25;
  const sensor = new LinearAccelerationSensor({frequency: 60});

  sensor.onreading = t.step_func(() => {
    if (sensor.x > shakeThreshold) {
      t.done();
    }
  });

  sensor.onerror = t.step_func_done(event => {
    assert_unreached(event.error.name + ":" + event.error.message);
  });

  sensor.start();
}, "Test that when shaking gesture along x axis of the device, the shake threshold can be greater than 25");

</script>