Tests that AudioBufferSourceNodes are collectable after they trigger their onended event.
PASS source.onended called.
PASS source.onended called.
PASS source.onended called.
PASS source.onended called.
PASS source.onended called.
PASS source.onended called.
PASS AudioBufferSourceNode was collected after calling onended.
PASS successfullyParsed is true

TEST COMPLETE