2 PASS Test attribute values on a closed MediaSource object.
3 PASS Test addSourceBuffer() while closed.
4 PASS Test removeSourceBuffer() while closed.
5 PASS Test endOfStream() while closed.
6 PASS Test endOfStream(decode) while closed.
7 PASS Test endOfStream(network) while closed.
8 PASS Test setting duration while closed.
9 PASS Test setting duration while open->closed.
10 PASS Test getting duration while open->closed.