This is a testharness.js-based test.
[FAIL] addTransceiver(video) should auto-set scaleResolutionDownBy to 1 when some encodings have it, but not all
  assert_equals: expected (number) 1 but got (undefined) undefined
[FAIL] addTransceiver should auto-set scaleResolutionDownBy to powers of 2 (descending) when absent
  assert_equals: expected (number) 2 but got (undefined) undefined
Harness: the test ran to completion.