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/*
* Copyright 2018 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.
*/
#undef LOG_TAG
#define LOG_TAG "SchedulerUnittests"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <utils/Log.h>
#include <utils/Timers.h>
#include "AsyncCallRecorder.h"
#include "Scheduler/OneShotTimer.h"
#include "fake/FakeClock.h"
using namespace std::chrono_literals;
namespace android {
namespace scheduler {
class OneShotTimerTest : public testing::Test {
protected:
OneShotTimerTest() = default;
~OneShotTimerTest() override = default;
AsyncCallRecorder<void (*)()> mResetTimerCallback;
AsyncCallRecorder<void (*)()> mExpiredTimerCallback;
std::unique_ptr<OneShotTimer> mIdleTimer;
void clearPendingCallbacks() {
while (mExpiredTimerCallback.waitForCall(0us).has_value()) {
}
}
};
namespace {
TEST_F(OneShotTimerTest, createAndDestroyTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>(
"TestTimer", 3ms, [] {}, [] {}, std::unique_ptr<fake::FakeClock>(clock));
}
TEST_F(OneShotTimerTest, startStopTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->stop();
}
// TODO(b/186417847) This test is flaky. Reenable once fixed.
TEST_F(OneShotTimerTest, DISABLED_resetTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
mIdleTimer->reset();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
// TODO(b/186417847) This test is flaky. Reenable once fixed.
TEST_F(OneShotTimerTest, DISABLED_resetBackToBackTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
mIdleTimer->reset();
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->reset();
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->reset();
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->reset();
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
mIdleTimer->stop();
clock->advanceTime(2ms);
// Final quick check that no more callback were observed.
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
// TODO(b/186417847) This test is new and passes locally, but may be flaky
TEST_F(OneShotTimerTest, DISABLED_resetBackToBackSlowAdvanceTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
mIdleTimer->reset();
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
clock->advanceTime(200us);
mIdleTimer->reset();
// Normally we would check that the timer callbacks weren't invoked here
// after resetting the timer, but we need to precisely control the timing of
// this test, and checking that callbacks weren't invoked requires non-zero
// time.
clock->advanceTime(1500us);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall(1100us).has_value());
mIdleTimer->reset();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
mIdleTimer->stop();
clock->advanceTime(2ms);
// Final quick check that no more callback were observed.
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
TEST_F(OneShotTimerTest, startNotCalledTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
// The start hasn't happened, so the callback does not happen.
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->stop();
clock->advanceTime(2ms);
// Final quick check that no more callback were observed.
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
// TODO(b/186417847) This test is flaky. Reenable once fixed.
TEST_F(OneShotTimerTest, DISABLED_idleTimerIdlesTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->reset();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
mIdleTimer->stop();
clock->advanceTime(2ms);
// Final quick check that no more callback were observed.
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
// TODO(b/186417847) This test is flaky. Reenable once fixed.
TEST_F(OneShotTimerTest, DISABLED_timeoutCallbackExecutionTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
mIdleTimer->stop();
clock->advanceTime(2ms);
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
TEST_F(OneShotTimerTest, noCallbacksAfterStopAndResetTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
clock->advanceTime(2ms);
EXPECT_TRUE(mExpiredTimerCallback.waitForCall().has_value());
mIdleTimer->stop();
mIdleTimer->reset();
clock->advanceTime(2ms);
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
TEST_F(OneShotTimerTest, noCallbacksAfterStopTest) {
fake::FakeClock* clock = new fake::FakeClock();
mIdleTimer = std::make_unique<scheduler::OneShotTimer>("TestTimer", 1ms,
mResetTimerCallback.getInvocable(),
mExpiredTimerCallback.getInvocable(),
std::unique_ptr<fake::FakeClock>(clock));
mIdleTimer->start();
EXPECT_TRUE(mResetTimerCallback.waitForCall().has_value());
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
mIdleTimer->stop();
mIdleTimer->reset();
clock->advanceTime(2ms);
// No more idle events should be observed
EXPECT_FALSE(mExpiredTimerCallback.waitForUnexpectedCall().has_value());
EXPECT_FALSE(mResetTimerCallback.waitForUnexpectedCall().has_value());
}
} // namespace
} // namespace scheduler
} // namespace android
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