tests: fix some leaks

See #497

spa/plugins/audioconvert/test-helper.h

@@ -78,6 +78,7 @@ error:
 static inline uint32_t get_cpu_flags(void)
 {
 	struct spa_handle *handle;
+	uint32_t flags;
 	void *iface;
 	int res;
 
@@ -88,5 +89,9 @@ static inline uint32_t get_cpu_flags(void)
 		fprintf(stderr, "can't get CPU interface %s\n", spa_strerror(res));
 		return 0;
 	}
-	return spa_cpu_get_flags((struct spa_cpu*)iface);
+	flags = spa_cpu_get_flags((struct spa_cpu*)iface);
+
+	free(handle);
+
+	return flags;
 }

src/modules/module-protocol-native/test-connection.c

@@ -145,5 +145,10 @@ int main(int argc, char *argv[])
 	test_create(out);
 	test_read_write(in, out);
 
+	pw_protocol_native_connection_destroy(in);
+	pw_protocol_native_connection_destroy(out);
+	pw_context_destroy(context);
+	pw_main_loop_destroy(loop);
+
 	return 0;
 }

src/tests/test-endpoint.c

@@ -444,6 +444,7 @@ static void test_endpoint(void)
 	spa_assert(!d.bound_proxy);
 
 	endpoint_clear(&d.endpoint);
+	pw_proxy_destroy((struct pw_proxy*)d.registry);
 	pw_context_destroy(d.context);
 	pw_main_loop_destroy(d.loop);
 }