This is a testharness.js-based test.
[FAIL] UncalibratedMagnetometer: Test that onerror is sent when permissions are not granted.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that onerror is send when start() call has failed.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that frequency is capped to allowed maximum.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that frequency is capped to the maximum supported frequency.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that frequency is limited to the minimum supported frequency.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that sensor cannot be constructed within iframe disallowed to use feature policy.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that sensor can be constructed within an iframe allowed to use feature policy.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that 'onreading' is called and sensor reading is valid.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: sensor reading is correct.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that readings are all mapped to expectedReadings correctly.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: sensor timestamp is updated when time passes.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that sensor can be successfully created and its states are correct.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: no exception is thrown when calling start() on already started sensor.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: no exception is thrown when calling stop() on already stopped sensor.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Test that fresh reading is fetched on start().
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Readings are not delivered when the page has no visibility
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: frequency hint works.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
[FAIL] UncalibratedMagnetometer: Readings delivered by shared platform sensor are immediately accessible to all sensors.
  assert_implements: UncalibratedMagnetometer is not supported. undefined
Harness: the test ran to completion.