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/*
* Copyright 2019 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.
*/
#include "os/alarm.h"
#include <future>
#include "common/bind.h"
#include "gtest/gtest.h"
namespace bluetooth {
namespace os {
namespace {
using common::BindOnce;
class AlarmTest : public ::testing::Test {
protected:
void SetUp() override {
thread_ = new Thread("test_thread", Thread::Priority::NORMAL);
handler_ = new Handler(thread_);
alarm_ = new Alarm(handler_);
}
void TearDown() override {
delete alarm_;
handler_->Clear();
delete handler_;
delete thread_;
}
Alarm* alarm_;
private:
Handler* handler_;
Thread* thread_;
};
TEST_F(AlarmTest, cancel_while_not_armed) {
alarm_->Cancel();
}
TEST_F(AlarmTest, schedule) {
std::promise<void> promise;
auto future = promise.get_future();
auto before = std::chrono::steady_clock::now();
int delay_ms = 10;
int delay_error_ms = 3;
alarm_->Schedule(
BindOnce(&std::promise<void>::set_value, common::Unretained(&promise)), std::chrono::milliseconds(delay_ms));
future.get();
auto after = std::chrono::steady_clock::now();
auto duration_ms = std::chrono::duration_cast<std::chrono::milliseconds>(after - before);
ASSERT_NEAR(duration_ms.count(), delay_ms, delay_error_ms);
}
TEST_F(AlarmTest, cancel_alarm) {
alarm_->Schedule(BindOnce([]() { ASSERT_TRUE(false) << "Should not happen"; }), std::chrono::milliseconds(3));
alarm_->Cancel();
std::this_thread::sleep_for(std::chrono::milliseconds(5));
}
TEST_F(AlarmTest, cancel_alarm_from_callback) {
alarm_->Schedule(BindOnce(&Alarm::Cancel, common::Unretained(alarm_)), std::chrono::milliseconds(1));
std::this_thread::sleep_for(std::chrono::milliseconds(5));
}
TEST_F(AlarmTest, schedule_while_alarm_armed) {
alarm_->Schedule(BindOnce([]() { ASSERT_TRUE(false) << "Should not happen"; }), std::chrono::milliseconds(1));
std::promise<void> promise;
auto future = promise.get_future();
alarm_->Schedule(
BindOnce(&std::promise<void>::set_value, common::Unretained(&promise)), std::chrono::milliseconds(10));
future.get();
}
TEST_F(AlarmTest, delete_while_alarm_armed) {
alarm_->Schedule(BindOnce([]() { ASSERT_TRUE(false) << "Should not happen"; }), std::chrono::milliseconds(1));
delete alarm_;
alarm_ = nullptr;
std::this_thread::sleep_for(std::chrono::milliseconds(10));
}
} // namespace
} // namespace os
} // namespace bluetooth
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