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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
// Copyright 2021 The libgav1 Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "src/utils/vector.h"
#include <memory>
#include <new>
#include <utility>
#include "gtest/gtest.h"
#include "src/utils/compiler_attributes.h"
#if LIBGAV1_MSAN
#include <sanitizer/msan_interface.h>
#endif
namespace libgav1 {
namespace {
class Foo {
public:
Foo() = default;
int x() const { return x_; }
private:
int x_ = 38;
};
class Point {
public:
Point(int x, int y) : x_(x), y_(y) {}
int x() const { return x_; }
int y() const { return y_; }
private:
int x_;
int y_;
};
TEST(VectorTest, NoCtor) {
VectorNoCtor<int> v;
EXPECT_TRUE(v.resize(100));
Vector<int> w;
EXPECT_TRUE(w.resize(100));
#if LIBGAV1_MSAN
// Use MemorySanitizer to check VectorNoCtor::resize() does not initialize
// the memory while Vector::resize() does.
//
// __msan_test_shadow(const void *x, uptr size) returns the offset of the
// first (at least partially) poisoned byte in the range, or -1 if the whole
// range is good.
for (size_t i = 0; i < 100; ++i) {
EXPECT_EQ(__msan_test_shadow(&v[i], sizeof(int)), 0);
EXPECT_EQ(__msan_test_shadow(&w[i], sizeof(int)), -1);
}
#endif
}
TEST(VectorTest, Constructor) {
Vector<Foo> v;
EXPECT_TRUE(v.resize(100));
for (const Foo& foo : v) {
EXPECT_EQ(foo.x(), 38);
}
}
TEST(VectorTest, PushBack) {
// Create a vector containing integers
Vector<int> v;
EXPECT_TRUE(v.reserve(8));
EXPECT_EQ(v.size(), 0);
EXPECT_TRUE(v.push_back(25));
EXPECT_EQ(v.size(), 1);
EXPECT_EQ(v[0], 25);
EXPECT_TRUE(v.push_back(13));
EXPECT_EQ(v.size(), 2);
EXPECT_EQ(v[0], 25);
EXPECT_EQ(v[1], 13);
}
TEST(VectorTest, PushBackUnchecked) {
Vector<std::unique_ptr<Point>> v;
EXPECT_TRUE(v.reserve(2));
EXPECT_EQ(v.size(), 0);
std::unique_ptr<Point> point(new (std::nothrow) Point(1, 2));
EXPECT_NE(point, nullptr);
v.push_back_unchecked(std::move(point));
EXPECT_EQ(v.size(), 1);
EXPECT_EQ(v[0]->x(), 1);
EXPECT_EQ(v[0]->y(), 2);
point.reset(new (std::nothrow) Point(3, 4));
EXPECT_NE(point, nullptr);
v.push_back_unchecked(std::move(point));
EXPECT_EQ(v.size(), 2);
EXPECT_EQ(v[0]->x(), 1);
EXPECT_EQ(v[0]->y(), 2);
EXPECT_EQ(v[1]->x(), 3);
EXPECT_EQ(v[1]->y(), 4);
}
TEST(VectorTest, EmplaceBack) {
Vector<Point> v;
EXPECT_EQ(v.size(), 0);
EXPECT_TRUE(v.emplace_back(1, 2));
EXPECT_EQ(v.size(), 1);
EXPECT_EQ(v[0].x(), 1);
EXPECT_EQ(v[0].y(), 2);
EXPECT_TRUE(v.emplace_back(3, 4));
EXPECT_EQ(v.size(), 2);
EXPECT_EQ(v[0].x(), 1);
EXPECT_EQ(v[0].y(), 2);
EXPECT_EQ(v[1].x(), 3);
EXPECT_EQ(v[1].y(), 4);
}
// Copy constructor and assignment are deleted, but move constructor and
// assignment are OK.
TEST(VectorTest, Move) {
Vector<int> ints1;
EXPECT_TRUE(ints1.reserve(4));
EXPECT_TRUE(ints1.push_back(2));
EXPECT_TRUE(ints1.push_back(3));
EXPECT_TRUE(ints1.push_back(5));
EXPECT_TRUE(ints1.push_back(7));
// Move constructor.
Vector<int> ints2(std::move(ints1));
EXPECT_EQ(ints2.size(), 4);
EXPECT_EQ(ints2[0], 2);
EXPECT_EQ(ints2[1], 3);
EXPECT_EQ(ints2[2], 5);
EXPECT_EQ(ints2[3], 7);
// Move assignment.
Vector<int> ints3;
EXPECT_TRUE(ints3.reserve(1));
EXPECT_TRUE(ints3.push_back(11));
ints3 = std::move(ints2);
EXPECT_EQ(ints3.size(), 4);
EXPECT_EQ(ints3[0], 2);
EXPECT_EQ(ints3[1], 3);
EXPECT_EQ(ints3[2], 5);
EXPECT_EQ(ints3[3], 7);
}
TEST(VectorTest, Erase) {
Vector<int> ints;
EXPECT_TRUE(ints.reserve(4));
EXPECT_TRUE(ints.push_back(2));
EXPECT_TRUE(ints.push_back(3));
EXPECT_TRUE(ints.push_back(5));
EXPECT_TRUE(ints.push_back(7));
EXPECT_EQ(ints.size(), 4);
EXPECT_EQ(ints[0], 2);
EXPECT_EQ(ints[1], 3);
EXPECT_EQ(ints[2], 5);
EXPECT_EQ(ints[3], 7);
ints.erase(ints.begin());
EXPECT_EQ(ints.size(), 3);
EXPECT_EQ(ints[0], 3);
EXPECT_EQ(ints[1], 5);
EXPECT_EQ(ints[2], 7);
}
TEST(VectorTest, EraseNonTrivial) {
// A simple class that sets an int value to 0 in the destructor.
class Cleaner {
public:
explicit Cleaner(int* value) : value_(value) {}
~Cleaner() { *value_ = 0; }
int value() const { return *value_; }
private:
int* value_;
};
int value1 = 100;
int value2 = 200;
Vector<std::unique_ptr<Cleaner>> v;
EXPECT_TRUE(v.reserve(2));
EXPECT_EQ(v.capacity(), 2);
std::unique_ptr<Cleaner> c(new (std::nothrow) Cleaner(&value1));
EXPECT_NE(c, nullptr);
EXPECT_TRUE(v.push_back(std::move(c)));
c.reset(new (std::nothrow) Cleaner(&value2));
EXPECT_NE(c, nullptr);
EXPECT_TRUE(v.push_back(std::move(c)));
EXPECT_EQ(v.size(), 2);
EXPECT_EQ(value1, 100);
EXPECT_EQ(value2, 200);
v.erase(v.begin());
EXPECT_EQ(v.size(), 1);
EXPECT_EQ(v.capacity(), 2);
EXPECT_EQ(value1, 0);
EXPECT_EQ(value2, 200);
EXPECT_EQ(v[0].get()->value(), value2);
EXPECT_TRUE(v.shrink_to_fit());
EXPECT_EQ(v.size(), 1);
EXPECT_EQ(v.capacity(), 1);
EXPECT_EQ(value2, 200);
EXPECT_EQ(v[0].get()->value(), value2);
v.clear();
EXPECT_TRUE(v.empty());
EXPECT_EQ(value2, 0);
}
} // namespace
} // namespace libgav1
|
