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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