1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "gtest/gtest.h"
18
19#include "chre/util/singleton.h"
20
21using chre::Singleton;
22
23TEST(Singleton, Lifecycle) {
24  EXPECT_FALSE(Singleton<int>::isInitialized());
25  EXPECT_EQ(Singleton<int>::get(), nullptr);
26
27  Singleton<int>::init(0x1337);
28  ASSERT_NE(Singleton<int>::get(), nullptr);
29  EXPECT_TRUE(Singleton<int>::isInitialized());
30  EXPECT_EQ(*Singleton<int>::get(), 0x1337);
31  Singleton<int>::init(0xcafe);
32  ASSERT_NE(Singleton<int>::get(), nullptr);
33  EXPECT_TRUE(Singleton<int>::isInitialized());
34  EXPECT_EQ(*Singleton<int>::get(), 0x1337);
35
36  Singleton<int>::deinit();
37  EXPECT_EQ(Singleton<int>::get(), nullptr);
38  EXPECT_FALSE(Singleton<int>::isInitialized());
39
40  Singleton<int>::init(0xface);
41  ASSERT_NE(Singleton<int>::get(), nullptr);
42  EXPECT_TRUE(Singleton<int>::isInitialized());
43  EXPECT_EQ(*Singleton<int>::get(), 0xface);
44}
45