Fix memory leaks by adding missing destroy calls for events, streams, and graphs at the end of tests. Ensure that every test case executes destroy calls, regardless of whether it passes or fails. Change-Id: I814e35c528d90ed2abb34d77377f1a7fd3f1f11c
Change-Id: If72e312461a72920b6a482009c9aef4cf92f2e1b
Change-Id: I2cfadf6335a582f593191860d5084cb79fa411b3
Change-Id: I6f6b542783104895f85ab0a1fe6808556435aa2c
Change-Id: I7c1051a7bec9a6a3b332c23bd40b46bad55e97c5