This is a testharness.js-based test.
[FAIL] X AudioContext.destination.numberOfOutputs is not equal to 1. Got 0.
assert_true: expected true got false
[FAIL] < [test] 1 out of 12 assertions were failed.
assert_true: expected true got false
[FAIL] # AUDIT TASK RUNNER FINISHED: 1 out of 1 tasks were failed.
assert_true: expected true got false
Harness: the test ran to completion.