Basic tests for AudioNode API.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

PASS context.state is "suspended"
node.connect(context.destination)
PASS context.state is "running"
Calling context.suspend()
PASS context.suspend() promise resolved
PASS context.state is "suspended"
Calling context.resume()
PASS context.resume() promise resolved
PASS context.state is "running"
Calling context.close()
PASS context.close() promise resolved
PASS context.state is "closed"
Calling context.resume() (should fail)
PASS context.resume() promise rejected (correctly)
PASS context.state is "closed"
Calling context.suspend() (should fail)
PASS context.suspend() promise rejected (correctly)
PASS context.state is "closed"
PASS successfullyParsed is true

TEST COMPLETE