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
21 using chre::Singleton;
22
TEST(Singleton,Lifecycle)23 TEST(Singleton, Lifecycle) {
24 EXPECT_FALSE(Singleton<int>::isInitialized());
25 EXPECT_EQ(Singleton<int>::safeGet(), 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>::safeGet(), 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