forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
input_unittest.cc
171 lines (141 loc) · 4.58 KB
/
input_unittest.cc
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
// Copyright 2015 The Chromium 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 "base/logging.h"
#include "net/der/input.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace der {
namespace test {
const uint8_t kInput[] = {'t', 'e', 's', 't'};
const uint8_t kInput2[] = {'t', 'e', 'a', 'l'};
TEST(InputTest, Equals) {
Input test(kInput);
Input test2(kInput);
EXPECT_TRUE(test.Equals(test2));
uint8_t input_copy[arraysize(kInput)] = {0};
memcpy(input_copy, kInput, arraysize(kInput));
Input test_copy(input_copy);
EXPECT_TRUE(test.Equals(test_copy));
Input test_truncated(kInput, arraysize(kInput) - 1);
EXPECT_FALSE(test.Equals(test_truncated));
EXPECT_FALSE(test_truncated.Equals(test));
}
TEST(InputTest, LessThan) {
Input test(kInput);
EXPECT_FALSE(test < test);
Input test2(kInput2);
EXPECT_FALSE(test < test2);
EXPECT_TRUE(test2 < test);
Input test_truncated(kInput, arraysize(kInput) - 1);
EXPECT_FALSE(test < test_truncated);
EXPECT_TRUE(test_truncated < test);
}
TEST(InputTest, AsString) {
Input input(kInput);
std::string expected_string(reinterpret_cast<const char*>(kInput),
arraysize(kInput));
EXPECT_EQ(expected_string, input.AsString());
}
TEST(InputTest, StaticArray) {
Input input(kInput);
EXPECT_EQ(arraysize(kInput), input.Length());
Input input2(kInput);
EXPECT_TRUE(input.Equals(input2));
}
TEST(ByteReaderTest, NoReadPastEnd) {
ByteReader reader(Input(nullptr, 0));
uint8_t data;
EXPECT_FALSE(reader.ReadByte(&data));
}
TEST(ByteReaderTest, ReadToEnd) {
uint8_t out;
ByteReader reader((Input(kInput)));
for (size_t i = 0; i < arraysize(kInput); ++i) {
ASSERT_TRUE(reader.ReadByte(&out));
ASSERT_EQ(kInput[i], out);
}
EXPECT_FALSE(reader.ReadByte(&out));
}
TEST(ByteReaderTest, PartialReadFails) {
Input out;
ByteReader reader((Input(kInput)));
EXPECT_FALSE(reader.ReadBytes(5, &out));
}
TEST(ByteReaderTest, HasMore) {
Input out;
ByteReader reader((Input(kInput)));
ASSERT_TRUE(reader.HasMore());
ASSERT_TRUE(reader.ReadBytes(arraysize(kInput), &out));
ASSERT_FALSE(reader.HasMore());
}
TEST(ByteReaderTest, ReadToMark) {
uint8_t out;
Input input(kInput);
ByteReader reader(input);
// Read 2 bytes from the reader and then set a mark.
ASSERT_TRUE(reader.ReadByte(&out));
ASSERT_TRUE(reader.ReadByte(&out));
Mark mark = reader.NewMark();
// Reset the reader and check that we can read to a mark previously set.
reader = ByteReader(input);
Input marked_data;
ASSERT_TRUE(reader.ReadToMark(mark, &marked_data));
}
TEST(ByteReaderTest, CantReadToWrongMark) {
Input out;
Input in1(kInput);
const uint8_t in2_bytes[] = {'t', 'e', 's', 't'};
Input in2(in2_bytes);
ByteReader reader1(in1);
ByteReader reader2(in2);
ASSERT_TRUE(reader1.ReadBytes(2, &out));
ASSERT_TRUE(reader2.ReadBytes(2, &out));
Mark mark1 = reader1.NewMark();
Mark mark2 = reader2.NewMark();
reader1 = ByteReader(in1);
reader2 = ByteReader(in2);
// It is not possible to advance to a mark outside the underlying input.
ASSERT_FALSE(reader1.AdvanceToMark(mark2));
ASSERT_FALSE(reader2.AdvanceToMark(mark1));
}
TEST(ByteReaderTest, MarksAreSharedBetweenSameInputs) {
Input out;
Input in1(kInput);
Input in2(kInput, 1);
ByteReader reader1(in1);
ByteReader reader2(in2);
ASSERT_TRUE(reader1.ReadBytes(2, &out));
ASSERT_TRUE(reader2.ReadBytes(1, &out));
Mark mark1 = reader1.NewMark();
Mark mark2 = reader2.NewMark();
reader1 = ByteReader(in1);
reader2 = ByteReader(in2);
// If Marks are created on the same underlying data, they can be shared
// across ByteReaders and Inputs. However, they still must be inside the
// bounds for the ByteReader they are being used on.
// mark1 is past the end of the input for reader2.
EXPECT_FALSE(reader2.AdvanceToMark(mark1));
// mark2 is within the bounds of reader1.
EXPECT_TRUE(reader1.AdvanceToMark(mark2));
}
TEST(ByteReaderTest, CantReadToWrongMarkWithInputsOnStack) {
const uint8_t data1[] = "test";
const uint8_t data2[] = "foo";
Input out;
Input in1(data1);
Input in2(data2);
ByteReader reader1(in1);
ByteReader reader2(in2);
ASSERT_TRUE(reader1.ReadBytes(2, &out));
ASSERT_TRUE(reader2.ReadBytes(2, &out));
Mark mark1 = reader1.NewMark();
Mark mark2 = reader2.NewMark();
reader1 = ByteReader(in1);
reader2 = ByteReader(in2);
ASSERT_FALSE(reader1.AdvanceToMark(mark2));
ASSERT_FALSE(reader2.AdvanceToMark(mark1));
}
} // namespace test
} // namespace der
} // namespace net