5 - Try creating a duplicate EC and check for expected NameAlreadyUsed
7 - Create named proxy consumer.
8 - Narrow it to a structured proxy consumer.
9 - Try creating a duplicate proxy consumer and check for expected
10 NameAlreadyUsed exception.
11 - Disconnect proxy consumer.
12 - Try creating a duplicate proxy consumer. As the named consumer has
13 already disconnected the NameAlreadyUsed exception isn't