Confirm enable/disable status=0 status=1 status=0 Confirm sampling status=2 status=0 Test starting when already started status=1 status=1 Test stopping when already stopped status=0 status=0 Test tracing with empty filename Got expected exception Test tracing with bogus (< 1024 && != 0) filesize Got expected exception Got expected exception Test sampling with bogus (<= 0) interval Got expected exception Got expected exception Instances of ClassA 2 Instances of ClassB 1 Instances of null 0 Instances of ClassA assignable 3 Array counts [2, 1, 0] Array counts assignable [3, 1, 0]