aosp12/system/chre/util/tests/singleton_test.cc

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2023-01-09 17:11:35 +08:00
/*
* Copyright (C) 2016 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 "gtest/gtest.h"
#include "chre/util/singleton.h"
using chre::Singleton;
TEST(Singleton, Lifecycle) {
EXPECT_FALSE(Singleton<int>::isInitialized());
EXPECT_EQ(Singleton<int>::safeGet(), nullptr);
Singleton<int>::init(0x1337);
ASSERT_NE(Singleton<int>::get(), nullptr);
EXPECT_TRUE(Singleton<int>::isInitialized());
EXPECT_EQ(*Singleton<int>::get(), 0x1337);
Singleton<int>::init(0xcafe);
ASSERT_NE(Singleton<int>::get(), nullptr);
EXPECT_TRUE(Singleton<int>::isInitialized());
EXPECT_EQ(*Singleton<int>::get(), 0x1337);
Singleton<int>::deinit();
EXPECT_EQ(Singleton<int>::safeGet(), nullptr);
EXPECT_FALSE(Singleton<int>::isInitialized());
Singleton<int>::init(0xface);
ASSERT_NE(Singleton<int>::get(), nullptr);
EXPECT_TRUE(Singleton<int>::isInitialized());
EXPECT_EQ(*Singleton<int>::get(), 0xface);
}