Minor change; add an assertTrue stmt.

llvm-svn: 135542

lldb/test/python_api/event/TestEvents.py

@@ -150,6 +150,7 @@ class EventAPITestCase(TestBase):
         # Now launch the process, and do not stop at entry point.
         error = lldb.SBError()
         process = target.Launch (listener, None, None, None, None, None, None, 0, False, error)
+        self.assertTrue(error.Success())
         self.assertTrue(process, PROCESS_IS_VALID)
 
         # Get a handle on the process's broadcaster.