Harness status: OK Found 11 tests 8 Pass 3 Fail Pass Setting current time while reverse-pending preserves currentTime Pass Reversing an animation inverts the playback rate Fail Reversing an animation resets a sticky start time. Pass Reversing an animation does not cause it to leave the pending state Pass Reversing an animation does not cause it to resolve the ready promise Pass Reversing an animation with a negative playback rate should cause the animation to play in a forward direction Fail Reversing when when playbackRate == 0 should preserve the playback rate Fail Reversing an idle animation aligns startTime with the rangeEnd boundary Pass Reversing an animation without an active timeline throws an InvalidStateError Pass Reversing an animation plays a pausing animation Pass Reversing should use the negative pending playback rate