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
|
// Copyright 2017 The Abseil 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
//
// https://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 "absl/strings/substitute.h"
#include <cstdint>
#include <vector>
#include "gtest/gtest.h"
#include "absl/strings/str_cat.h"
namespace {
TEST(SubstituteTest, Substitute) {
// Basic.
EXPECT_EQ("Hello, world!", absl::Substitute("$0, $1!", "Hello", "world"));
// Non-char* types.
EXPECT_EQ("123 0.2 0.1 foo true false x",
absl::Substitute("$0 $1 $2 $3 $4 $5 $6", 123, 0.2, 0.1f,
std::string("foo"), true, false, 'x'));
// All int types.
EXPECT_EQ(
"-32767 65535 "
"-1234567890 3234567890 "
"-1234567890 3234567890 "
"-1234567890123456789 9234567890123456789",
absl::Substitute(
"$0 $1 $2 $3 $4 $5 $6 $7",
static_cast<short>(-32767), // NOLINT(runtime/int)
static_cast<unsigned short>(65535), // NOLINT(runtime/int)
-1234567890, 3234567890U, -1234567890L, 3234567890UL,
-int64_t{1234567890123456789}, uint64_t{9234567890123456789u}));
// Hex format
EXPECT_EQ("0 1 f ffff0ffff 0123456789abcdef",
absl::Substitute("$0$1$2$3$4 $5", //
absl::Hex(0), absl::Hex(1, absl::kSpacePad2),
absl::Hex(0xf, absl::kSpacePad2),
absl::Hex(int16_t{-1}, absl::kSpacePad5),
absl::Hex(int16_t{-1}, absl::kZeroPad5),
absl::Hex(0x123456789abcdef, absl::kZeroPad16)));
// Dec format
EXPECT_EQ("0 115 -1-0001 81985529216486895",
absl::Substitute("$0$1$2$3$4 $5", //
absl::Dec(0), absl::Dec(1, absl::kSpacePad2),
absl::Dec(0xf, absl::kSpacePad2),
absl::Dec(int16_t{-1}, absl::kSpacePad5),
absl::Dec(int16_t{-1}, absl::kZeroPad5),
absl::Dec(0x123456789abcdef, absl::kZeroPad16)));
// Pointer.
const int* int_p = reinterpret_cast<const int*>(0x12345);
std::string str = absl::Substitute("$0", int_p);
EXPECT_EQ(absl::StrCat("0x", absl::Hex(int_p)), str);
// Volatile Pointer.
// Like C++ streamed I/O, such pointers implicitly become bool
volatile int vol = 237;
volatile int *volatile volptr = &vol;
str = absl::Substitute("$0", volptr);
EXPECT_EQ("true", str);
// null is special. StrCat prints 0x0. Substitute prints NULL.
const uint64_t* null_p = nullptr;
str = absl::Substitute("$0", null_p);
EXPECT_EQ("NULL", str);
// char* is also special.
const char* char_p = "print me";
str = absl::Substitute("$0", char_p);
EXPECT_EQ("print me", str);
char char_buf[16];
strncpy(char_buf, "print me too", sizeof(char_buf));
str = absl::Substitute("$0", char_buf);
EXPECT_EQ("print me too", str);
// null char* is "doubly" special. Represented as the empty std::string.
char_p = nullptr;
str = absl::Substitute("$0", char_p);
EXPECT_EQ("", str);
// Out-of-order.
EXPECT_EQ("b, a, c, b", absl::Substitute("$1, $0, $2, $1", "a", "b", "c"));
// Literal $
EXPECT_EQ("$", absl::Substitute("$$"));
EXPECT_EQ("$1", absl::Substitute("$$1"));
// Test all overloads.
EXPECT_EQ("a", absl::Substitute("$0", "a"));
EXPECT_EQ("a b", absl::Substitute("$0 $1", "a", "b"));
EXPECT_EQ("a b c", absl::Substitute("$0 $1 $2", "a", "b", "c"));
EXPECT_EQ("a b c d", absl::Substitute("$0 $1 $2 $3", "a", "b", "c", "d"));
EXPECT_EQ("a b c d e",
absl::Substitute("$0 $1 $2 $3 $4", "a", "b", "c", "d", "e"));
EXPECT_EQ("a b c d e f", absl::Substitute("$0 $1 $2 $3 $4 $5", "a", "b", "c",
"d", "e", "f"));
EXPECT_EQ("a b c d e f g", absl::Substitute("$0 $1 $2 $3 $4 $5 $6", "a", "b",
"c", "d", "e", "f", "g"));
EXPECT_EQ("a b c d e f g h",
absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7", "a", "b", "c", "d", "e",
"f", "g", "h"));
EXPECT_EQ("a b c d e f g h i",
absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8", "a", "b", "c", "d",
"e", "f", "g", "h", "i"));
EXPECT_EQ("a b c d e f g h i j",
absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8 $9", "a", "b", "c",
"d", "e", "f", "g", "h", "i", "j"));
EXPECT_EQ("a b c d e f g h i j b0",
absl::Substitute("$0 $1 $2 $3 $4 $5 $6 $7 $8 $9 $10", "a", "b", "c",
"d", "e", "f", "g", "h", "i", "j"));
const char* null_cstring = nullptr;
EXPECT_EQ("Text: ''", absl::Substitute("Text: '$0'", null_cstring));
}
TEST(SubstituteTest, SubstituteAndAppend) {
std::string str = "Hello";
absl::SubstituteAndAppend(&str, ", $0!", "world");
EXPECT_EQ("Hello, world!", str);
// Test all overloads.
str.clear();
absl::SubstituteAndAppend(&str, "$0", "a");
EXPECT_EQ("a", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1", "a", "b");
EXPECT_EQ("a b", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2", "a", "b", "c");
EXPECT_EQ("a b c", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3", "a", "b", "c", "d");
EXPECT_EQ("a b c d", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4", "a", "b", "c", "d", "e");
EXPECT_EQ("a b c d e", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5", "a", "b", "c", "d", "e",
"f");
EXPECT_EQ("a b c d e f", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6", "a", "b", "c", "d",
"e", "f", "g");
EXPECT_EQ("a b c d e f g", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7", "a", "b", "c", "d",
"e", "f", "g", "h");
EXPECT_EQ("a b c d e f g h", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7 $8", "a", "b", "c",
"d", "e", "f", "g", "h", "i");
EXPECT_EQ("a b c d e f g h i", str);
str.clear();
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3 $4 $5 $6 $7 $8 $9", "a", "b",
"c", "d", "e", "f", "g", "h", "i", "j");
EXPECT_EQ("a b c d e f g h i j", str);
}
TEST(SubstituteTest, VectorBoolRef) {
std::vector<bool> v = {true, false};
const auto& cv = v;
EXPECT_EQ("true false true false",
absl::Substitute("$0 $1 $2 $3", v[0], v[1], cv[0], cv[1]));
std::string str = "Logic be like: ";
absl::SubstituteAndAppend(&str, "$0 $1 $2 $3", v[0], v[1], cv[0], cv[1]);
EXPECT_EQ("Logic be like: true false true false", str);
}
#ifdef GTEST_HAS_DEATH_TEST
TEST(SubstituteDeathTest, SubstituteDeath) {
EXPECT_DEBUG_DEATH(
static_cast<void>(absl::Substitute(absl::string_view("-$2"), "a", "b")),
"Invalid absl::Substitute\\(\\) format std::string: asked for \"\\$2\", "
"but only 2 args were given.");
EXPECT_DEBUG_DEATH(
static_cast<void>(absl::Substitute("-$z-")),
"Invalid absl::Substitute\\(\\) format std::string: \"-\\$z-\"");
EXPECT_DEBUG_DEATH(
static_cast<void>(absl::Substitute("-$")),
"Invalid absl::Substitute\\(\\) format std::string: \"-\\$\"");
}
#endif // GTEST_HAS_DEATH_TEST
} // namespace
|
