| Yahan Zhou | 3cbda59 | 2020-08-03 15:53:27 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <gtest/gtest.h> |
| 18 | #include <gui/DisplayEventReceiver.h> |
| 19 | |
| 20 | namespace android::test { |
| 21 | |
| 22 | #define CHECK_OFFSET(type, member, expected_offset) \ |
| 23 | static_assert((offsetof(type, member) == (expected_offset)), "") |
| 24 | |
| 25 | TEST(DisplayEventStructLayoutTest, TestEventAlignment) { |
| 26 | CHECK_OFFSET(DisplayEventReceiver::Event, vsync, 24); |
| 27 | CHECK_OFFSET(DisplayEventReceiver::Event, hotplug, 24); |
| 28 | CHECK_OFFSET(DisplayEventReceiver::Event, config, 24); |
| 29 | |
| 30 | CHECK_OFFSET(DisplayEventReceiver::Event::Header, type, 0); |
| 31 | CHECK_OFFSET(DisplayEventReceiver::Event::Header, displayId, 8); |
| 32 | CHECK_OFFSET(DisplayEventReceiver::Event::Header, timestamp, 16); |
| 33 | |
| 34 | CHECK_OFFSET(DisplayEventReceiver::Event::VSync, count, 0); |
| 35 | CHECK_OFFSET(DisplayEventReceiver::Event::VSync, expectedVSyncTimestamp, 8); |
| 36 | |
| 37 | CHECK_OFFSET(DisplayEventReceiver::Event::Hotplug, connected, 0); |
| 38 | |
| 39 | CHECK_OFFSET(DisplayEventReceiver::Event::Config, configId, 0); |
| 40 | CHECK_OFFSET(DisplayEventReceiver::Event::Config, vsyncPeriod, 8); |
| 41 | } |
| 42 | |
| 43 | } // namespace android::test |