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Diffstat (limited to 'services/vibratorservice/test/VibratorCallbackSchedulerTest.cpp')
-rw-r--r-- | services/vibratorservice/test/VibratorCallbackSchedulerTest.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/services/vibratorservice/test/VibratorCallbackSchedulerTest.cpp b/services/vibratorservice/test/VibratorCallbackSchedulerTest.cpp new file mode 100644 index 0000000000..aaeb8f990a --- /dev/null +++ b/services/vibratorservice/test/VibratorCallbackSchedulerTest.cpp @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2020 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "VibratorHalWrapperAidlTest" + +#include <android-base/thread_annotations.h> +#include <android/hardware/vibrator/IVibrator.h> +#include <condition_variable> + +#include <gmock/gmock.h> +#include <gtest/gtest.h> + +#include <utils/Log.h> +#include <thread> + +#include <vibratorservice/VibratorCallbackScheduler.h> + +using std::chrono::milliseconds; +using std::chrono::steady_clock; +using std::chrono::time_point; + +using namespace android; +using namespace std::chrono_literals; +using namespace testing; + +// ------------------------------------------------------------------------------------------------- + +class VibratorCallbackSchedulerTest : public Test { +public: + void SetUp() override { + mScheduler = std::make_unique<vibrator::CallbackScheduler>(); + std::lock_guard<std::mutex> lock(mMutex); + mExpiredCallbacks.clear(); + } + +protected: + std::mutex mMutex; + std::condition_variable_any mCondition; + std::unique_ptr<vibrator::CallbackScheduler> mScheduler = nullptr; + std::vector<int32_t> mExpiredCallbacks GUARDED_BY(mMutex); + + std::function<void()> createCallback(int32_t id) { + return [=]() { + { + std::lock_guard<std::mutex> lock(mMutex); + mExpiredCallbacks.push_back(id); + } + mCondition.notify_all(); + }; + } + + std::vector<int32_t> getExpiredCallbacks() { + std::lock_guard<std::mutex> lock(mMutex); + return std::vector<int32_t>(mExpiredCallbacks); + } + + bool waitForCallbacks(uint32_t callbackCount, milliseconds timeout) { + time_point<steady_clock> expiration = steady_clock::now() + timeout; + while (steady_clock::now() < expiration) { + std::lock_guard<std::mutex> lock(mMutex); + if (callbackCount <= mExpiredCallbacks.size()) { + return true; + } + mCondition.wait_until(mMutex, expiration); + } + return false; + } +}; + +// ------------------------------------------------------------------------------------------------- + +TEST_F(VibratorCallbackSchedulerTest, TestScheduleRunsOnlyAfterDelay) { + mScheduler->schedule(createCallback(1), 15ms); + + // Not triggered before delay. + ASSERT_FALSE(waitForCallbacks(1, 10ms)); + ASSERT_TRUE(getExpiredCallbacks().empty()); + + ASSERT_TRUE(waitForCallbacks(1, 10ms)); + ASSERT_THAT(getExpiredCallbacks(), ElementsAre(1)); +} + +TEST_F(VibratorCallbackSchedulerTest, TestScheduleMultipleCallbacksRunsInDelayOrder) { + mScheduler->schedule(createCallback(1), 10ms); + mScheduler->schedule(createCallback(2), 5ms); + mScheduler->schedule(createCallback(3), 1ms); + + ASSERT_TRUE(waitForCallbacks(3, 15ms)); + ASSERT_THAT(getExpiredCallbacks(), ElementsAre(3, 2, 1)); +} + +TEST_F(VibratorCallbackSchedulerTest, TestScheduleInParallelRunsInDelayOrder) { + std::vector<std::thread> threads; + for (int i = 0; i < 5; i++) { + threads.push_back(std::thread( + [=]() { mScheduler->schedule(createCallback(i), milliseconds(10 + 2 * i)); })); + } + std::for_each(threads.begin(), threads.end(), [](std::thread& t) { t.join(); }); + + ASSERT_TRUE(waitForCallbacks(5, 25ms)); + ASSERT_THAT(getExpiredCallbacks(), ElementsAre(0, 1, 2, 3, 4)); +} + +TEST_F(VibratorCallbackSchedulerTest, TestDestructorDropsPendingCallbacksAndKillsThread) { + mScheduler->schedule(createCallback(1), 5ms); + mScheduler.reset(nullptr); + + // Should time out waiting for callback to run. + ASSERT_FALSE(waitForCallbacks(1, 10ms)); + ASSERT_TRUE(getExpiredCallbacks().empty()); +} |