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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/handler.h"
#include <future>
#include <thread>
#include "common/bind.h"
#include "common/callback.h"
#include "gtest/gtest.h"
#include "os/log.h"
namespace bluetooth {
namespace os {
namespace {
class HandlerTest : public ::testing::Test {
protected:
void SetUp() override {
thread_ = new Thread("test_thread", Thread::Priority::NORMAL);
handler_ = new Handler(thread_);
}
void TearDown() override {
delete handler_;
delete thread_;
}
Handler* handler_;
Thread* thread_;
};
TEST_F(HandlerTest, empty) {
handler_->Clear();
}
TEST_F(HandlerTest, post_task_invoked) {
int val = 0;
std::promise<void> closure_ran;
auto future = closure_ran.get_future();
common::OnceClosure closure = common::BindOnce(
[](int* val, std::promise<void> closure_ran) {
*val = *val + 1;
closure_ran.set_value();
},
common::Unretained(&val),
std::move(closure_ran));
handler_->Post(std::move(closure));
future.wait();
ASSERT_EQ(val, 1);
handler_->Clear();
}
TEST_F(HandlerTest, post_task_cleared) {
int val = 0;
std::promise<void> closure_started;
auto closure_started_future = closure_started.get_future();
std::promise<void> closure_can_continue;
auto can_continue_future = closure_can_continue.get_future();
handler_->Post(common::BindOnce(
[](int* val, std::promise<void> closure_started, std::future<void> can_continue_future) {
closure_started.set_value();
*val = *val + 1;
can_continue_future.wait();
},
common::Unretained(&val),
std::move(closure_started),
std::move(can_continue_future)));
handler_->Post(common::BindOnce([]() { ASSERT_TRUE(false); }));
closure_started_future.wait();
handler_->Clear();
closure_can_continue.set_value();
ASSERT_EQ(val, 1);
}
void check_int(std::unique_ptr<int> number, std::shared_ptr<int> to_change) {
*to_change = *number;
}
TEST_F(HandlerTest, once_callback) {
auto number = std::make_unique<int>(1);
auto to_change = std::make_shared<int>(0);
auto once_callback = common::BindOnce(&check_int, std::move(number), to_change);
std::move(once_callback).Run();
EXPECT_EQ(*to_change, 1);
handler_->Clear();
}
TEST_F(HandlerTest, callback_with_promise) {
std::promise<void> promise;
auto future = promise.get_future();
auto once_callback = common::BindOnce(&std::promise<void>::set_value, common::Unretained(&promise));
std::move(once_callback).Run();
future.wait();
handler_->Clear();
}
// For Death tests, all the threading needs to be done in the ASSERT_DEATH call
class HandlerDeathTest : public ::testing::Test {
protected:
void ThreadSetUp() {
thread_ = new Thread("test_thread", Thread::Priority::NORMAL);
handler_ = new Handler(thread_);
}
void ThreadTearDown() {
delete handler_;
delete thread_;
}
void ClearTwice() {
ThreadSetUp();
handler_->Clear();
handler_->Clear();
ThreadTearDown();
}
void NotCleared() {
ThreadSetUp();
ThreadTearDown();
}
Handler* handler_;
Thread* thread_;
};
TEST_F(HandlerDeathTest, clear_after_handler_cleared) {
ASSERT_DEATH(ClearTwice(), "Handlers must only be cleared once");
}
TEST_F(HandlerDeathTest, not_cleared_before_destruction) {
ASSERT_DEATH(NotCleared(), "Handlers must be cleared");
}
} // namespace
} // namespace os
} // namespace bluetooth
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