1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/fxcrt/cfx_observable.h"
#include <utility>
#include <vector>
#include "testing/fx_string_testhelpers.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class PseudoObservable : public CFX_Observable<PseudoObservable> {
public:
PseudoObservable() {}
int SomeMethod() { return 42; }
size_t ActiveObservedPtrs() const { return ActiveObservedPtrsForTesting(); }
};
} // namespace
TEST(fxcrt, ObservePtrNull) {
PseudoObservable::ObservedPtr ptr;
EXPECT_EQ(nullptr, ptr.Get());
}
TEST(fxcrt, ObservePtrLivesLonger) {
PseudoObservable* pObs = new PseudoObservable;
PseudoObservable::ObservedPtr ptr(pObs);
EXPECT_NE(nullptr, ptr.Get());
EXPECT_EQ(1u, pObs->ActiveObservedPtrs());
delete pObs;
EXPECT_EQ(nullptr, ptr.Get());
}
TEST(fxcrt, ObservePtrLivesShorter) {
PseudoObservable obs;
{
PseudoObservable::ObservedPtr ptr(&obs);
EXPECT_NE(nullptr, ptr.Get());
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
TEST(fxcrt, ObserveCopyConstruct) {
PseudoObservable obs;
{
PseudoObservable::ObservedPtr ptr(&obs);
EXPECT_NE(nullptr, ptr.Get());
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
{
PseudoObservable::ObservedPtr ptr2(ptr);
EXPECT_NE(nullptr, ptr2.Get());
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
TEST(fxcrt, ObserveCopyAssign) {
PseudoObservable obs;
{
PseudoObservable::ObservedPtr ptr(&obs);
EXPECT_NE(nullptr, ptr.Get());
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
{
PseudoObservable::ObservedPtr ptr2;
ptr2 = ptr;
EXPECT_NE(nullptr, ptr2.Get());
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
TEST(fxcrt, ObserveVector) {
PseudoObservable obs;
{
std::vector<PseudoObservable::ObservedPtr> vec1;
std::vector<PseudoObservable::ObservedPtr> vec2;
vec1.emplace_back(&obs);
vec1.emplace_back(&obs);
EXPECT_NE(nullptr, vec1[0].Get());
EXPECT_NE(nullptr, vec1[1].Get());
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
vec2 = vec1;
EXPECT_NE(nullptr, vec2[0].Get());
EXPECT_NE(nullptr, vec2[1].Get());
EXPECT_EQ(4u, obs.ActiveObservedPtrs());
vec1.clear();
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
vec2.resize(10000);
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
vec2.resize(0);
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
TEST(fxcrt, ObserveVectorAutoClear) {
std::vector<PseudoObservable::ObservedPtr> vec1;
{
PseudoObservable obs;
vec1.emplace_back(&obs);
vec1.emplace_back(&obs);
EXPECT_NE(nullptr, vec1[0].Get());
EXPECT_NE(nullptr, vec1[1].Get());
EXPECT_EQ(2u, obs.ActiveObservedPtrs());
}
EXPECT_EQ(nullptr, vec1[0].Get());
EXPECT_EQ(nullptr, vec1[1].Get());
}
TEST(fxcrt, ObservePtrResetNull) {
PseudoObservable obs;
PseudoObservable::ObservedPtr ptr(&obs);
EXPECT_EQ(1u, obs.ActiveObservedPtrs());
ptr.Reset();
EXPECT_EQ(0u, obs.ActiveObservedPtrs());
}
TEST(fxcrt, ObservePtrReset) {
PseudoObservable obs1;
PseudoObservable obs2;
PseudoObservable::ObservedPtr ptr(&obs1);
EXPECT_EQ(1u, obs1.ActiveObservedPtrs());
EXPECT_EQ(0u, obs2.ActiveObservedPtrs());
ptr.Reset(&obs2);
EXPECT_EQ(0u, obs1.ActiveObservedPtrs());
EXPECT_EQ(1u, obs2.ActiveObservedPtrs());
}
TEST(fxcrt, ObservePtrEquals) {
PseudoObservable obj1;
PseudoObservable obj2;
PseudoObservable::ObservedPtr null_ptr1;
PseudoObservable::ObservedPtr obj1_ptr1(&obj1);
PseudoObservable::ObservedPtr obj2_ptr1(&obj2);
{
PseudoObservable::ObservedPtr null_ptr2;
EXPECT_TRUE(null_ptr1 == null_ptr2);
PseudoObservable::ObservedPtr obj1_ptr2(&obj1);
EXPECT_TRUE(obj1_ptr1 == obj1_ptr2);
PseudoObservable::ObservedPtr obj2_ptr2(&obj2);
EXPECT_TRUE(obj2_ptr1 == obj2_ptr2);
}
EXPECT_FALSE(null_ptr1 == obj1_ptr1);
EXPECT_FALSE(null_ptr1 == obj2_ptr1);
EXPECT_FALSE(obj1_ptr1 == obj2_ptr1);
}
TEST(fxcrt, ObservePtrNotEquals) {
PseudoObservable obj1;
PseudoObservable obj2;
PseudoObservable::ObservedPtr null_ptr1;
PseudoObservable::ObservedPtr obj1_ptr1(&obj1);
PseudoObservable::ObservedPtr obj2_ptr1(&obj2);
{
PseudoObservable::ObservedPtr null_ptr2;
PseudoObservable::ObservedPtr obj1_ptr2(&obj1);
PseudoObservable::ObservedPtr obj2_ptr2(&obj2);
EXPECT_FALSE(null_ptr1 != null_ptr2);
EXPECT_FALSE(obj1_ptr1 != obj1_ptr2);
EXPECT_FALSE(obj2_ptr1 != obj2_ptr2);
}
EXPECT_TRUE(null_ptr1 != obj1_ptr1);
EXPECT_TRUE(null_ptr1 != obj2_ptr1);
EXPECT_TRUE(obj1_ptr1 != obj2_ptr1);
}
TEST(fxcrt, ObservePtrBool) {
PseudoObservable obj1;
PseudoObservable::ObservedPtr null_ptr;
PseudoObservable::ObservedPtr obj1_ptr(&obj1);
bool null_bool = !!null_ptr;
bool obj1_bool = !!obj1_ptr;
EXPECT_FALSE(null_bool);
EXPECT_TRUE(obj1_bool);
}
|
