1 /*
2  *  Copyright 2014 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "webrtc/base/scopedptrcollection.h"
12 #include "webrtc/base/gunit.h"
13 
14 namespace rtc {
15 
16 namespace {
17 
18 class InstanceCounter {
19  public:
InstanceCounter(int * num_instances)20   explicit InstanceCounter(int* num_instances)
21       : num_instances_(num_instances) {
22     ++(*num_instances_);
23   }
~InstanceCounter()24   ~InstanceCounter() {
25     --(*num_instances_);
26   }
27 
28  private:
29   int* num_instances_;
30 
31   RTC_DISALLOW_COPY_AND_ASSIGN(InstanceCounter);
32 };
33 
34 }  // namespace
35 
36 class ScopedPtrCollectionTest : public testing::Test {
37  protected:
ScopedPtrCollectionTest()38   ScopedPtrCollectionTest()
39       : num_instances_(0),
40       collection_(new ScopedPtrCollection<InstanceCounter>()) {
41   }
42 
43   int num_instances_;
44   scoped_ptr<ScopedPtrCollection<InstanceCounter> > collection_;
45 };
46 
TEST_F(ScopedPtrCollectionTest,PushBack)47 TEST_F(ScopedPtrCollectionTest, PushBack) {
48   EXPECT_EQ(0u, collection_->collection().size());
49   EXPECT_EQ(0, num_instances_);
50   const int kNum = 100;
51   for (int i = 0; i < kNum; ++i) {
52     collection_->PushBack(new InstanceCounter(&num_instances_));
53   }
54   EXPECT_EQ(static_cast<size_t>(kNum), collection_->collection().size());
55   EXPECT_EQ(kNum, num_instances_);
56   collection_.reset();
57   EXPECT_EQ(0, num_instances_);
58 }
59 
TEST_F(ScopedPtrCollectionTest,Remove)60 TEST_F(ScopedPtrCollectionTest, Remove) {
61   InstanceCounter* ic = new InstanceCounter(&num_instances_);
62   collection_->PushBack(ic);
63   EXPECT_EQ(1u, collection_->collection().size());
64   collection_->Remove(ic);
65   EXPECT_EQ(1, num_instances_);
66   collection_.reset();
67   EXPECT_EQ(1, num_instances_);
68   delete ic;
69   EXPECT_EQ(0, num_instances_);
70 }
71 
72 
73 }  // namespace rtc
74