This is a testharness.js-based test.
Found 3 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] Test we can construct a I420AP12 VideoFrame
  Failed to construct 'VideoFrame': Failed to read the 'format' property from 'VideoFrameBufferInit': The provided value 'I420AP12' is not a valid enum value of type VideoPixelFormat.
[FAIL] Test we can construct a I422AP12 VideoFrame
  Failed to construct 'VideoFrame': Failed to read the 'format' property from 'VideoFrameBufferInit': The provided value 'I422AP12' is not a valid enum value of type VideoPixelFormat.
[FAIL] Test we can construct a I444AP12 VideoFrame
  Failed to construct 'VideoFrame': Failed to read the 'format' property from 'VideoFrameBufferInit': The provided value 'I444AP12' is not a valid enum value of type VideoPixelFormat.
Harness: the test ran to completion.