1 /*
2 * Copyright (C) 2015 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 <utils/StrongPointer.h>
20 #include <utils/RefBase.h>
21
22 using namespace android;
23
24 class SPFoo : public LightRefBase<SPFoo> {
25 public:
SPFoo(bool * deleted_check)26 explicit SPFoo(bool* deleted_check) : mDeleted(deleted_check) {
27 *mDeleted = false;
28 }
29
~SPFoo()30 ~SPFoo() {
31 *mDeleted = true;
32 }
33 private:
34 bool* mDeleted;
35 };
36
TEST(StrongPointer,move)37 TEST(StrongPointer, move) {
38 bool isDeleted;
39 SPFoo* foo = new SPFoo(&isDeleted);
40 ASSERT_EQ(0, foo->getStrongCount());
41 ASSERT_FALSE(isDeleted) << "Already deleted...?";
42 sp<SPFoo> sp1(foo);
43 ASSERT_EQ(1, foo->getStrongCount());
44 {
45 sp<SPFoo> sp2 = std::move(sp1);
46 ASSERT_EQ(1, foo->getStrongCount()) << "std::move failed, incremented refcnt";
47 ASSERT_EQ(nullptr, sp1.get()) << "std::move failed, sp1 is still valid";
48 // The strong count isn't increasing, let's double check the old object
49 // is properly reset and doesn't early delete
50 sp1 = std::move(sp2);
51 }
52 ASSERT_FALSE(isDeleted) << "deleted too early! still has a reference!";
53 {
54 // Now let's double check it deletes on time
55 sp<SPFoo> sp2 = std::move(sp1);
56 }
57 ASSERT_TRUE(isDeleted) << "foo was leaked!";
58 }
59