- added assertion for destruction

Source/charon/tests/thread_pool_test.c

@@ -35,6 +35,6 @@ void test_thread_pool(tester_t *tester)
 	thread_pool_t *pool = thread_pool_create(desired_pool_size);
 	pool->get_pool_size(pool, &pool_size);
 	tester->assert_true(tester, (desired_pool_size == pool_size), "thread creation");
-	pool->destroy(pool);
+	tester->assert_true(tester, (pool->destroy(pool) == SUCCESS), "threadpool destruction");
 }