Daniel Erat | b8cf949 | 2015-07-06 13:18:13 -0600 | [diff] [blame^] | 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "base/strings/string_util.h" |
| 6 | |
| 7 | #include <math.h> |
| 8 | #include <stdarg.h> |
| 9 | |
| 10 | #include <algorithm> |
| 11 | |
| 12 | #include "base/basictypes.h" |
| 13 | #include "base/strings/string16.h" |
| 14 | #include "base/strings/utf_string_conversions.h" |
| 15 | #include "testing/gmock/include/gmock/gmock.h" |
| 16 | #include "testing/gtest/include/gtest/gtest.h" |
| 17 | |
| 18 | using ::testing::ElementsAre; |
| 19 | |
| 20 | namespace base { |
| 21 | |
| 22 | static const struct trim_case { |
| 23 | const wchar_t* input; |
| 24 | const TrimPositions positions; |
| 25 | const wchar_t* output; |
| 26 | const TrimPositions return_value; |
| 27 | } trim_cases[] = { |
| 28 | {L" Google Video ", TRIM_LEADING, L"Google Video ", TRIM_LEADING}, |
| 29 | {L" Google Video ", TRIM_TRAILING, L" Google Video", TRIM_TRAILING}, |
| 30 | {L" Google Video ", TRIM_ALL, L"Google Video", TRIM_ALL}, |
| 31 | {L"Google Video", TRIM_ALL, L"Google Video", TRIM_NONE}, |
| 32 | {L"", TRIM_ALL, L"", TRIM_NONE}, |
| 33 | {L" ", TRIM_LEADING, L"", TRIM_LEADING}, |
| 34 | {L" ", TRIM_TRAILING, L"", TRIM_TRAILING}, |
| 35 | {L" ", TRIM_ALL, L"", TRIM_ALL}, |
| 36 | {L"\t\rTest String\n", TRIM_ALL, L"Test String", TRIM_ALL}, |
| 37 | {L"\x2002Test String\x00A0\x3000", TRIM_ALL, L"Test String", TRIM_ALL}, |
| 38 | }; |
| 39 | |
| 40 | static const struct trim_case_ascii { |
| 41 | const char* input; |
| 42 | const TrimPositions positions; |
| 43 | const char* output; |
| 44 | const TrimPositions return_value; |
| 45 | } trim_cases_ascii[] = { |
| 46 | {" Google Video ", TRIM_LEADING, "Google Video ", TRIM_LEADING}, |
| 47 | {" Google Video ", TRIM_TRAILING, " Google Video", TRIM_TRAILING}, |
| 48 | {" Google Video ", TRIM_ALL, "Google Video", TRIM_ALL}, |
| 49 | {"Google Video", TRIM_ALL, "Google Video", TRIM_NONE}, |
| 50 | {"", TRIM_ALL, "", TRIM_NONE}, |
| 51 | {" ", TRIM_LEADING, "", TRIM_LEADING}, |
| 52 | {" ", TRIM_TRAILING, "", TRIM_TRAILING}, |
| 53 | {" ", TRIM_ALL, "", TRIM_ALL}, |
| 54 | {"\t\rTest String\n", TRIM_ALL, "Test String", TRIM_ALL}, |
| 55 | }; |
| 56 | |
| 57 | namespace { |
| 58 | |
| 59 | // Helper used to test TruncateUTF8ToByteSize. |
| 60 | bool Truncated(const std::string& input, |
| 61 | const size_t byte_size, |
| 62 | std::string* output) { |
| 63 | size_t prev = input.length(); |
| 64 | TruncateUTF8ToByteSize(input, byte_size, output); |
| 65 | return prev != output->length(); |
| 66 | } |
| 67 | |
| 68 | } // namespace |
| 69 | |
| 70 | TEST(StringUtilTest, TruncateUTF8ToByteSize) { |
| 71 | std::string output; |
| 72 | |
| 73 | // Empty strings and invalid byte_size arguments |
| 74 | EXPECT_FALSE(Truncated(std::string(), 0, &output)); |
| 75 | EXPECT_EQ(output, ""); |
| 76 | EXPECT_TRUE(Truncated("\xe1\x80\xbf", 0, &output)); |
| 77 | EXPECT_EQ(output, ""); |
| 78 | EXPECT_FALSE(Truncated("\xe1\x80\xbf", static_cast<size_t>(-1), &output)); |
| 79 | EXPECT_FALSE(Truncated("\xe1\x80\xbf", 4, &output)); |
| 80 | |
| 81 | // Testing the truncation of valid UTF8 correctly |
| 82 | EXPECT_TRUE(Truncated("abc", 2, &output)); |
| 83 | EXPECT_EQ(output, "ab"); |
| 84 | EXPECT_TRUE(Truncated("\xc2\x81\xc2\x81", 2, &output)); |
| 85 | EXPECT_EQ(output.compare("\xc2\x81"), 0); |
| 86 | EXPECT_TRUE(Truncated("\xc2\x81\xc2\x81", 3, &output)); |
| 87 | EXPECT_EQ(output.compare("\xc2\x81"), 0); |
| 88 | EXPECT_FALSE(Truncated("\xc2\x81\xc2\x81", 4, &output)); |
| 89 | EXPECT_EQ(output.compare("\xc2\x81\xc2\x81"), 0); |
| 90 | |
| 91 | { |
| 92 | const char array[] = "\x00\x00\xc2\x81\xc2\x81"; |
| 93 | const std::string array_string(array, arraysize(array)); |
| 94 | EXPECT_TRUE(Truncated(array_string, 4, &output)); |
| 95 | EXPECT_EQ(output.compare(std::string("\x00\x00\xc2\x81", 4)), 0); |
| 96 | } |
| 97 | |
| 98 | { |
| 99 | const char array[] = "\x00\xc2\x81\xc2\x81"; |
| 100 | const std::string array_string(array, arraysize(array)); |
| 101 | EXPECT_TRUE(Truncated(array_string, 4, &output)); |
| 102 | EXPECT_EQ(output.compare(std::string("\x00\xc2\x81", 3)), 0); |
| 103 | } |
| 104 | |
| 105 | // Testing invalid UTF8 |
| 106 | EXPECT_TRUE(Truncated("\xed\xa0\x80\xed\xbf\xbf", 6, &output)); |
| 107 | EXPECT_EQ(output.compare(""), 0); |
| 108 | EXPECT_TRUE(Truncated("\xed\xa0\x8f", 3, &output)); |
| 109 | EXPECT_EQ(output.compare(""), 0); |
| 110 | EXPECT_TRUE(Truncated("\xed\xbf\xbf", 3, &output)); |
| 111 | EXPECT_EQ(output.compare(""), 0); |
| 112 | |
| 113 | // Testing invalid UTF8 mixed with valid UTF8 |
| 114 | EXPECT_FALSE(Truncated("\xe1\x80\xbf", 3, &output)); |
| 115 | EXPECT_EQ(output.compare("\xe1\x80\xbf"), 0); |
| 116 | EXPECT_FALSE(Truncated("\xf1\x80\xa0\xbf", 4, &output)); |
| 117 | EXPECT_EQ(output.compare("\xf1\x80\xa0\xbf"), 0); |
| 118 | EXPECT_FALSE(Truncated("a\xc2\x81\xe1\x80\xbf\xf1\x80\xa0\xbf", |
| 119 | 10, &output)); |
| 120 | EXPECT_EQ(output.compare("a\xc2\x81\xe1\x80\xbf\xf1\x80\xa0\xbf"), 0); |
| 121 | EXPECT_TRUE(Truncated("a\xc2\x81\xe1\x80\xbf\xf1""a""\x80\xa0", |
| 122 | 10, &output)); |
| 123 | EXPECT_EQ(output.compare("a\xc2\x81\xe1\x80\xbf\xf1""a"), 0); |
| 124 | EXPECT_FALSE(Truncated("\xef\xbb\xbf" "abc", 6, &output)); |
| 125 | EXPECT_EQ(output.compare("\xef\xbb\xbf" "abc"), 0); |
| 126 | |
| 127 | // Overlong sequences |
| 128 | EXPECT_TRUE(Truncated("\xc0\x80", 2, &output)); |
| 129 | EXPECT_EQ(output.compare(""), 0); |
| 130 | EXPECT_TRUE(Truncated("\xc1\x80\xc1\x81", 4, &output)); |
| 131 | EXPECT_EQ(output.compare(""), 0); |
| 132 | EXPECT_TRUE(Truncated("\xe0\x80\x80", 3, &output)); |
| 133 | EXPECT_EQ(output.compare(""), 0); |
| 134 | EXPECT_TRUE(Truncated("\xe0\x82\x80", 3, &output)); |
| 135 | EXPECT_EQ(output.compare(""), 0); |
| 136 | EXPECT_TRUE(Truncated("\xe0\x9f\xbf", 3, &output)); |
| 137 | EXPECT_EQ(output.compare(""), 0); |
| 138 | EXPECT_TRUE(Truncated("\xf0\x80\x80\x8D", 4, &output)); |
| 139 | EXPECT_EQ(output.compare(""), 0); |
| 140 | EXPECT_TRUE(Truncated("\xf0\x80\x82\x91", 4, &output)); |
| 141 | EXPECT_EQ(output.compare(""), 0); |
| 142 | EXPECT_TRUE(Truncated("\xf0\x80\xa0\x80", 4, &output)); |
| 143 | EXPECT_EQ(output.compare(""), 0); |
| 144 | EXPECT_TRUE(Truncated("\xf0\x8f\xbb\xbf", 4, &output)); |
| 145 | EXPECT_EQ(output.compare(""), 0); |
| 146 | EXPECT_TRUE(Truncated("\xf8\x80\x80\x80\xbf", 5, &output)); |
| 147 | EXPECT_EQ(output.compare(""), 0); |
| 148 | EXPECT_TRUE(Truncated("\xfc\x80\x80\x80\xa0\xa5", 6, &output)); |
| 149 | EXPECT_EQ(output.compare(""), 0); |
| 150 | |
| 151 | // Beyond U+10FFFF (the upper limit of Unicode codespace) |
| 152 | EXPECT_TRUE(Truncated("\xf4\x90\x80\x80", 4, &output)); |
| 153 | EXPECT_EQ(output.compare(""), 0); |
| 154 | EXPECT_TRUE(Truncated("\xf8\xa0\xbf\x80\xbf", 5, &output)); |
| 155 | EXPECT_EQ(output.compare(""), 0); |
| 156 | EXPECT_TRUE(Truncated("\xfc\x9c\xbf\x80\xbf\x80", 6, &output)); |
| 157 | EXPECT_EQ(output.compare(""), 0); |
| 158 | |
| 159 | // BOMs in UTF-16(BE|LE) and UTF-32(BE|LE) |
| 160 | EXPECT_TRUE(Truncated("\xfe\xff", 2, &output)); |
| 161 | EXPECT_EQ(output.compare(""), 0); |
| 162 | EXPECT_TRUE(Truncated("\xff\xfe", 2, &output)); |
| 163 | EXPECT_EQ(output.compare(""), 0); |
| 164 | |
| 165 | { |
| 166 | const char array[] = "\x00\x00\xfe\xff"; |
| 167 | const std::string array_string(array, arraysize(array)); |
| 168 | EXPECT_TRUE(Truncated(array_string, 4, &output)); |
| 169 | EXPECT_EQ(output.compare(std::string("\x00\x00", 2)), 0); |
| 170 | } |
| 171 | |
| 172 | // Variants on the previous test |
| 173 | { |
| 174 | const char array[] = "\xff\xfe\x00\x00"; |
| 175 | const std::string array_string(array, 4); |
| 176 | EXPECT_FALSE(Truncated(array_string, 4, &output)); |
| 177 | EXPECT_EQ(output.compare(std::string("\xff\xfe\x00\x00", 4)), 0); |
| 178 | } |
| 179 | { |
| 180 | const char array[] = "\xff\x00\x00\xfe"; |
| 181 | const std::string array_string(array, arraysize(array)); |
| 182 | EXPECT_TRUE(Truncated(array_string, 4, &output)); |
| 183 | EXPECT_EQ(output.compare(std::string("\xff\x00\x00", 3)), 0); |
| 184 | } |
| 185 | |
| 186 | // Non-characters : U+xxFFF[EF] where xx is 0x00 through 0x10 and <FDD0,FDEF> |
| 187 | EXPECT_TRUE(Truncated("\xef\xbf\xbe", 3, &output)); |
| 188 | EXPECT_EQ(output.compare(""), 0); |
| 189 | EXPECT_TRUE(Truncated("\xf0\x8f\xbf\xbe", 4, &output)); |
| 190 | EXPECT_EQ(output.compare(""), 0); |
| 191 | EXPECT_TRUE(Truncated("\xf3\xbf\xbf\xbf", 4, &output)); |
| 192 | EXPECT_EQ(output.compare(""), 0); |
| 193 | EXPECT_TRUE(Truncated("\xef\xb7\x90", 3, &output)); |
| 194 | EXPECT_EQ(output.compare(""), 0); |
| 195 | EXPECT_TRUE(Truncated("\xef\xb7\xaf", 3, &output)); |
| 196 | EXPECT_EQ(output.compare(""), 0); |
| 197 | |
| 198 | // Strings in legacy encodings that are valid in UTF-8, but |
| 199 | // are invalid as UTF-8 in real data. |
| 200 | EXPECT_TRUE(Truncated("caf\xe9", 4, &output)); |
| 201 | EXPECT_EQ(output.compare("caf"), 0); |
| 202 | EXPECT_TRUE(Truncated("\xb0\xa1\xb0\xa2", 4, &output)); |
| 203 | EXPECT_EQ(output.compare(""), 0); |
| 204 | EXPECT_FALSE(Truncated("\xa7\x41\xa6\x6e", 4, &output)); |
| 205 | EXPECT_EQ(output.compare("\xa7\x41\xa6\x6e"), 0); |
| 206 | EXPECT_TRUE(Truncated("\xa7\x41\xa6\x6e\xd9\xee\xe4\xee", 7, |
| 207 | &output)); |
| 208 | EXPECT_EQ(output.compare("\xa7\x41\xa6\x6e"), 0); |
| 209 | |
| 210 | // Testing using the same string as input and output. |
| 211 | EXPECT_FALSE(Truncated(output, 4, &output)); |
| 212 | EXPECT_EQ(output.compare("\xa7\x41\xa6\x6e"), 0); |
| 213 | EXPECT_TRUE(Truncated(output, 3, &output)); |
| 214 | EXPECT_EQ(output.compare("\xa7\x41"), 0); |
| 215 | |
| 216 | // "abc" with U+201[CD] in windows-125[0-8] |
| 217 | EXPECT_TRUE(Truncated("\x93" "abc\x94", 5, &output)); |
| 218 | EXPECT_EQ(output.compare("\x93" "abc"), 0); |
| 219 | |
| 220 | // U+0639 U+064E U+0644 U+064E in ISO-8859-6 |
| 221 | EXPECT_TRUE(Truncated("\xd9\xee\xe4\xee", 4, &output)); |
| 222 | EXPECT_EQ(output.compare(""), 0); |
| 223 | |
| 224 | // U+03B3 U+03B5 U+03B9 U+03AC in ISO-8859-7 |
| 225 | EXPECT_TRUE(Truncated("\xe3\xe5\xe9\xdC", 4, &output)); |
| 226 | EXPECT_EQ(output.compare(""), 0); |
| 227 | } |
| 228 | |
| 229 | TEST(StringUtilTest, TrimWhitespace) { |
| 230 | string16 output; // Allow contents to carry over to next testcase |
| 231 | for (size_t i = 0; i < arraysize(trim_cases); ++i) { |
| 232 | const trim_case& value = trim_cases[i]; |
| 233 | EXPECT_EQ(value.return_value, |
| 234 | TrimWhitespace(WideToUTF16(value.input), value.positions, |
| 235 | &output)); |
| 236 | EXPECT_EQ(WideToUTF16(value.output), output); |
| 237 | } |
| 238 | |
| 239 | // Test that TrimWhitespace() can take the same string for input and output |
| 240 | output = ASCIIToUTF16(" This is a test \r\n"); |
| 241 | EXPECT_EQ(TRIM_ALL, TrimWhitespace(output, TRIM_ALL, &output)); |
| 242 | EXPECT_EQ(ASCIIToUTF16("This is a test"), output); |
| 243 | |
| 244 | // Once more, but with a string of whitespace |
| 245 | output = ASCIIToUTF16(" \r\n"); |
| 246 | EXPECT_EQ(TRIM_ALL, TrimWhitespace(output, TRIM_ALL, &output)); |
| 247 | EXPECT_EQ(string16(), output); |
| 248 | |
| 249 | std::string output_ascii; |
| 250 | for (size_t i = 0; i < arraysize(trim_cases_ascii); ++i) { |
| 251 | const trim_case_ascii& value = trim_cases_ascii[i]; |
| 252 | EXPECT_EQ(value.return_value, |
| 253 | TrimWhitespace(value.input, value.positions, &output_ascii)); |
| 254 | EXPECT_EQ(value.output, output_ascii); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | static const struct collapse_case { |
| 259 | const wchar_t* input; |
| 260 | const bool trim; |
| 261 | const wchar_t* output; |
| 262 | } collapse_cases[] = { |
| 263 | {L" Google Video ", false, L"Google Video"}, |
| 264 | {L"Google Video", false, L"Google Video"}, |
| 265 | {L"", false, L""}, |
| 266 | {L" ", false, L""}, |
| 267 | {L"\t\rTest String\n", false, L"Test String"}, |
| 268 | {L"\x2002Test String\x00A0\x3000", false, L"Test String"}, |
| 269 | {L" Test \n \t String ", false, L"Test String"}, |
| 270 | {L"\x2002Test\x1680 \x2028 \tString\x00A0\x3000", false, L"Test String"}, |
| 271 | {L" Test String", false, L"Test String"}, |
| 272 | {L"Test String ", false, L"Test String"}, |
| 273 | {L"Test String", false, L"Test String"}, |
| 274 | {L"", true, L""}, |
| 275 | {L"\n", true, L""}, |
| 276 | {L" \r ", true, L""}, |
| 277 | {L"\nFoo", true, L"Foo"}, |
| 278 | {L"\r Foo ", true, L"Foo"}, |
| 279 | {L" Foo bar ", true, L"Foo bar"}, |
| 280 | {L" \tFoo bar \n", true, L"Foo bar"}, |
| 281 | {L" a \r b\n c \r\n d \t\re \t f \n ", true, L"abcde f"}, |
| 282 | }; |
| 283 | |
| 284 | TEST(StringUtilTest, CollapseWhitespace) { |
| 285 | for (size_t i = 0; i < arraysize(collapse_cases); ++i) { |
| 286 | const collapse_case& value = collapse_cases[i]; |
| 287 | EXPECT_EQ(WideToUTF16(value.output), |
| 288 | CollapseWhitespace(WideToUTF16(value.input), value.trim)); |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | static const struct collapse_case_ascii { |
| 293 | const char* input; |
| 294 | const bool trim; |
| 295 | const char* output; |
| 296 | } collapse_cases_ascii[] = { |
| 297 | {" Google Video ", false, "Google Video"}, |
| 298 | {"Google Video", false, "Google Video"}, |
| 299 | {"", false, ""}, |
| 300 | {" ", false, ""}, |
| 301 | {"\t\rTest String\n", false, "Test String"}, |
| 302 | {" Test \n \t String ", false, "Test String"}, |
| 303 | {" Test String", false, "Test String"}, |
| 304 | {"Test String ", false, "Test String"}, |
| 305 | {"Test String", false, "Test String"}, |
| 306 | {"", true, ""}, |
| 307 | {"\n", true, ""}, |
| 308 | {" \r ", true, ""}, |
| 309 | {"\nFoo", true, "Foo"}, |
| 310 | {"\r Foo ", true, "Foo"}, |
| 311 | {" Foo bar ", true, "Foo bar"}, |
| 312 | {" \tFoo bar \n", true, "Foo bar"}, |
| 313 | {" a \r b\n c \r\n d \t\re \t f \n ", true, "abcde f"}, |
| 314 | }; |
| 315 | |
| 316 | TEST(StringUtilTest, CollapseWhitespaceASCII) { |
| 317 | for (size_t i = 0; i < arraysize(collapse_cases_ascii); ++i) { |
| 318 | const collapse_case_ascii& value = collapse_cases_ascii[i]; |
| 319 | EXPECT_EQ(value.output, CollapseWhitespaceASCII(value.input, value.trim)); |
| 320 | } |
| 321 | } |
| 322 | |
| 323 | TEST(StringUtilTest, IsStringUTF8) { |
| 324 | EXPECT_TRUE(IsStringUTF8("abc")); |
| 325 | EXPECT_TRUE(IsStringUTF8("\xc2\x81")); |
| 326 | EXPECT_TRUE(IsStringUTF8("\xe1\x80\xbf")); |
| 327 | EXPECT_TRUE(IsStringUTF8("\xf1\x80\xa0\xbf")); |
| 328 | EXPECT_TRUE(IsStringUTF8("a\xc2\x81\xe1\x80\xbf\xf1\x80\xa0\xbf")); |
| 329 | EXPECT_TRUE(IsStringUTF8("\xef\xbb\xbf" "abc")); // UTF-8 BOM |
| 330 | |
| 331 | // surrogate code points |
| 332 | EXPECT_FALSE(IsStringUTF8("\xed\xa0\x80\xed\xbf\xbf")); |
| 333 | EXPECT_FALSE(IsStringUTF8("\xed\xa0\x8f")); |
| 334 | EXPECT_FALSE(IsStringUTF8("\xed\xbf\xbf")); |
| 335 | |
| 336 | // overlong sequences |
| 337 | EXPECT_FALSE(IsStringUTF8("\xc0\x80")); // U+0000 |
| 338 | EXPECT_FALSE(IsStringUTF8("\xc1\x80\xc1\x81")); // "AB" |
| 339 | EXPECT_FALSE(IsStringUTF8("\xe0\x80\x80")); // U+0000 |
| 340 | EXPECT_FALSE(IsStringUTF8("\xe0\x82\x80")); // U+0080 |
| 341 | EXPECT_FALSE(IsStringUTF8("\xe0\x9f\xbf")); // U+07ff |
| 342 | EXPECT_FALSE(IsStringUTF8("\xf0\x80\x80\x8D")); // U+000D |
| 343 | EXPECT_FALSE(IsStringUTF8("\xf0\x80\x82\x91")); // U+0091 |
| 344 | EXPECT_FALSE(IsStringUTF8("\xf0\x80\xa0\x80")); // U+0800 |
| 345 | EXPECT_FALSE(IsStringUTF8("\xf0\x8f\xbb\xbf")); // U+FEFF (BOM) |
| 346 | EXPECT_FALSE(IsStringUTF8("\xf8\x80\x80\x80\xbf")); // U+003F |
| 347 | EXPECT_FALSE(IsStringUTF8("\xfc\x80\x80\x80\xa0\xa5")); // U+00A5 |
| 348 | |
| 349 | // Beyond U+10FFFF (the upper limit of Unicode codespace) |
| 350 | EXPECT_FALSE(IsStringUTF8("\xf4\x90\x80\x80")); // U+110000 |
| 351 | EXPECT_FALSE(IsStringUTF8("\xf8\xa0\xbf\x80\xbf")); // 5 bytes |
| 352 | EXPECT_FALSE(IsStringUTF8("\xfc\x9c\xbf\x80\xbf\x80")); // 6 bytes |
| 353 | |
| 354 | // BOMs in UTF-16(BE|LE) and UTF-32(BE|LE) |
| 355 | EXPECT_FALSE(IsStringUTF8("\xfe\xff")); |
| 356 | EXPECT_FALSE(IsStringUTF8("\xff\xfe")); |
| 357 | EXPECT_FALSE(IsStringUTF8(std::string("\x00\x00\xfe\xff", 4))); |
| 358 | EXPECT_FALSE(IsStringUTF8("\xff\xfe\x00\x00")); |
| 359 | |
| 360 | // Non-characters : U+xxFFF[EF] where xx is 0x00 through 0x10 and <FDD0,FDEF> |
| 361 | EXPECT_FALSE(IsStringUTF8("\xef\xbf\xbe")); // U+FFFE) |
| 362 | EXPECT_FALSE(IsStringUTF8("\xf0\x8f\xbf\xbe")); // U+1FFFE |
| 363 | EXPECT_FALSE(IsStringUTF8("\xf3\xbf\xbf\xbf")); // U+10FFFF |
| 364 | EXPECT_FALSE(IsStringUTF8("\xef\xb7\x90")); // U+FDD0 |
| 365 | EXPECT_FALSE(IsStringUTF8("\xef\xb7\xaf")); // U+FDEF |
| 366 | // Strings in legacy encodings. We can certainly make up strings |
| 367 | // in a legacy encoding that are valid in UTF-8, but in real data, |
| 368 | // most of them are invalid as UTF-8. |
| 369 | EXPECT_FALSE(IsStringUTF8("caf\xe9")); // cafe with U+00E9 in ISO-8859-1 |
| 370 | EXPECT_FALSE(IsStringUTF8("\xb0\xa1\xb0\xa2")); // U+AC00, U+AC001 in EUC-KR |
| 371 | EXPECT_FALSE(IsStringUTF8("\xa7\x41\xa6\x6e")); // U+4F60 U+597D in Big5 |
| 372 | // "abc" with U+201[CD] in windows-125[0-8] |
| 373 | EXPECT_FALSE(IsStringUTF8("\x93" "abc\x94")); |
| 374 | // U+0639 U+064E U+0644 U+064E in ISO-8859-6 |
| 375 | EXPECT_FALSE(IsStringUTF8("\xd9\xee\xe4\xee")); |
| 376 | // U+03B3 U+03B5 U+03B9 U+03AC in ISO-8859-7 |
| 377 | EXPECT_FALSE(IsStringUTF8("\xe3\xe5\xe9\xdC")); |
| 378 | |
| 379 | // Check that we support Embedded Nulls. The first uses the canonical UTF-8 |
| 380 | // representation, and the second uses a 2-byte sequence. The second version |
| 381 | // is invalid UTF-8 since UTF-8 states that the shortest encoding for a |
| 382 | // given codepoint must be used. |
| 383 | static const char kEmbeddedNull[] = "embedded\0null"; |
| 384 | EXPECT_TRUE(IsStringUTF8( |
| 385 | std::string(kEmbeddedNull, sizeof(kEmbeddedNull)))); |
| 386 | EXPECT_FALSE(IsStringUTF8("embedded\xc0\x80U+0000")); |
| 387 | } |
| 388 | |
| 389 | TEST(StringUtilTest, IsStringASCII) { |
| 390 | static char char_ascii[] = |
| 391 | "0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"; |
| 392 | static char16 char16_ascii[] = { |
| 393 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 'A', |
| 394 | 'B', 'C', 'D', 'E', 'F', '0', '1', '2', '3', '4', '5', '6', |
| 395 | '7', '8', '9', '0', 'A', 'B', 'C', 'D', 'E', 'F', 0 }; |
| 396 | static std::wstring wchar_ascii( |
| 397 | L"0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"); |
| 398 | |
| 399 | // Test a variety of the fragment start positions and lengths in order to make |
| 400 | // sure that bit masking in IsStringASCII works correctly. |
| 401 | // Also, test that a non-ASCII character will be detected regardless of its |
| 402 | // position inside the string. |
| 403 | { |
| 404 | const size_t string_length = arraysize(char_ascii) - 1; |
| 405 | for (size_t offset = 0; offset < 8; ++offset) { |
| 406 | for (size_t len = 0, max_len = string_length - offset; len < max_len; |
| 407 | ++len) { |
| 408 | EXPECT_TRUE(IsStringASCII(StringPiece(char_ascii + offset, len))); |
| 409 | for (size_t char_pos = offset; char_pos < len; ++char_pos) { |
| 410 | char_ascii[char_pos] |= '\x80'; |
| 411 | EXPECT_FALSE(IsStringASCII(StringPiece(char_ascii + offset, len))); |
| 412 | char_ascii[char_pos] &= ~'\x80'; |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | } |
| 417 | |
| 418 | { |
| 419 | const size_t string_length = arraysize(char16_ascii) - 1; |
| 420 | for (size_t offset = 0; offset < 4; ++offset) { |
| 421 | for (size_t len = 0, max_len = string_length - offset; len < max_len; |
| 422 | ++len) { |
| 423 | EXPECT_TRUE(IsStringASCII(StringPiece16(char16_ascii + offset, len))); |
| 424 | for (size_t char_pos = offset; char_pos < len; ++char_pos) { |
| 425 | char16_ascii[char_pos] |= 0x80; |
| 426 | EXPECT_FALSE( |
| 427 | IsStringASCII(StringPiece16(char16_ascii + offset, len))); |
| 428 | char16_ascii[char_pos] &= ~0x80; |
| 429 | // Also test when the upper half is non-zero. |
| 430 | char16_ascii[char_pos] |= 0x100; |
| 431 | EXPECT_FALSE( |
| 432 | IsStringASCII(StringPiece16(char16_ascii + offset, len))); |
| 433 | char16_ascii[char_pos] &= ~0x100; |
| 434 | } |
| 435 | } |
| 436 | } |
| 437 | } |
| 438 | |
| 439 | { |
| 440 | const size_t string_length = wchar_ascii.length(); |
| 441 | for (size_t len = 0; len < string_length; ++len) { |
| 442 | EXPECT_TRUE(IsStringASCII(wchar_ascii.substr(0, len))); |
| 443 | for (size_t char_pos = 0; char_pos < len; ++char_pos) { |
| 444 | wchar_ascii[char_pos] |= 0x80; |
| 445 | EXPECT_FALSE( |
| 446 | IsStringASCII(wchar_ascii.substr(0, len))); |
| 447 | wchar_ascii[char_pos] &= ~0x80; |
| 448 | wchar_ascii[char_pos] |= 0x100; |
| 449 | EXPECT_FALSE( |
| 450 | IsStringASCII(wchar_ascii.substr(0, len))); |
| 451 | wchar_ascii[char_pos] &= ~0x100; |
| 452 | #if defined(WCHAR_T_IS_UTF32) |
| 453 | wchar_ascii[char_pos] |= 0x10000; |
| 454 | EXPECT_FALSE( |
| 455 | IsStringASCII(wchar_ascii.substr(0, len))); |
| 456 | wchar_ascii[char_pos] &= ~0x10000; |
| 457 | #endif // WCHAR_T_IS_UTF32 |
| 458 | } |
| 459 | } |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | TEST(StringUtilTest, ConvertASCII) { |
| 464 | static const char* const char_cases[] = { |
| 465 | "Google Video", |
| 466 | "Hello, world\n", |
| 467 | "0123ABCDwxyz \a\b\t\r\n!+,.~" |
| 468 | }; |
| 469 | |
| 470 | static const wchar_t* const wchar_cases[] = { |
| 471 | L"Google Video", |
| 472 | L"Hello, world\n", |
| 473 | L"0123ABCDwxyz \a\b\t\r\n!+,.~" |
| 474 | }; |
| 475 | |
| 476 | for (size_t i = 0; i < arraysize(char_cases); ++i) { |
| 477 | EXPECT_TRUE(IsStringASCII(char_cases[i])); |
| 478 | string16 utf16 = ASCIIToUTF16(char_cases[i]); |
| 479 | EXPECT_EQ(WideToUTF16(wchar_cases[i]), utf16); |
| 480 | |
| 481 | std::string ascii = UTF16ToASCII(WideToUTF16(wchar_cases[i])); |
| 482 | EXPECT_EQ(char_cases[i], ascii); |
| 483 | } |
| 484 | |
| 485 | EXPECT_FALSE(IsStringASCII("Google \x80Video")); |
| 486 | |
| 487 | // Convert empty strings. |
| 488 | string16 empty16; |
| 489 | std::string empty; |
| 490 | EXPECT_EQ(empty, UTF16ToASCII(empty16)); |
| 491 | EXPECT_EQ(empty16, ASCIIToUTF16(empty)); |
| 492 | |
| 493 | // Convert strings with an embedded NUL character. |
| 494 | const char chars_with_nul[] = "test\0string"; |
| 495 | const int length_with_nul = arraysize(chars_with_nul) - 1; |
| 496 | std::string string_with_nul(chars_with_nul, length_with_nul); |
| 497 | string16 string16_with_nul = ASCIIToUTF16(string_with_nul); |
| 498 | EXPECT_EQ(static_cast<string16::size_type>(length_with_nul), |
| 499 | string16_with_nul.length()); |
| 500 | std::string narrow_with_nul = UTF16ToASCII(string16_with_nul); |
| 501 | EXPECT_EQ(static_cast<std::string::size_type>(length_with_nul), |
| 502 | narrow_with_nul.length()); |
| 503 | EXPECT_EQ(0, string_with_nul.compare(narrow_with_nul)); |
| 504 | } |
| 505 | |
| 506 | TEST(StringUtilTest, ToUpperASCII) { |
| 507 | EXPECT_EQ('C', ToUpperASCII('C')); |
| 508 | EXPECT_EQ('C', ToUpperASCII('c')); |
| 509 | EXPECT_EQ('2', ToUpperASCII('2')); |
| 510 | |
| 511 | EXPECT_EQ(L'C', ToUpperASCII(L'C')); |
| 512 | EXPECT_EQ(L'C', ToUpperASCII(L'c')); |
| 513 | EXPECT_EQ(L'2', ToUpperASCII(L'2')); |
| 514 | |
| 515 | std::string in_place_a("Cc2"); |
| 516 | StringToUpperASCII(&in_place_a); |
| 517 | EXPECT_EQ("CC2", in_place_a); |
| 518 | |
| 519 | std::wstring in_place_w(L"Cc2"); |
| 520 | StringToUpperASCII(&in_place_w); |
| 521 | EXPECT_EQ(L"CC2", in_place_w); |
| 522 | |
| 523 | std::string original_a("Cc2"); |
| 524 | std::string upper_a = StringToUpperASCII(original_a); |
| 525 | EXPECT_EQ("CC2", upper_a); |
| 526 | |
| 527 | std::wstring original_w(L"Cc2"); |
| 528 | std::wstring upper_w = StringToUpperASCII(original_w); |
| 529 | EXPECT_EQ(L"CC2", upper_w); |
| 530 | } |
| 531 | |
| 532 | TEST(StringUtilTest, LowerCaseEqualsASCII) { |
| 533 | static const struct { |
| 534 | const char* src_a; |
| 535 | const char* dst; |
| 536 | } lowercase_cases[] = { |
| 537 | { "FoO", "foo" }, |
| 538 | { "foo", "foo" }, |
| 539 | { "FOO", "foo" }, |
| 540 | }; |
| 541 | |
| 542 | for (size_t i = 0; i < arraysize(lowercase_cases); ++i) { |
| 543 | EXPECT_TRUE(LowerCaseEqualsASCII(ASCIIToUTF16(lowercase_cases[i].src_a), |
| 544 | lowercase_cases[i].dst)); |
| 545 | EXPECT_TRUE(LowerCaseEqualsASCII(lowercase_cases[i].src_a, |
| 546 | lowercase_cases[i].dst)); |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | TEST(StringUtilTest, FormatBytesUnlocalized) { |
| 551 | static const struct { |
| 552 | int64 bytes; |
| 553 | const char* expected; |
| 554 | } cases[] = { |
| 555 | // Expected behavior: we show one post-decimal digit when we have |
| 556 | // under two pre-decimal digits, except in cases where it makes no |
| 557 | // sense (zero or bytes). |
| 558 | // Since we switch units once we cross the 1000 mark, this keeps |
| 559 | // the display of file sizes or bytes consistently around three |
| 560 | // digits. |
| 561 | {0, "0 B"}, |
| 562 | {512, "512 B"}, |
| 563 | {1024*1024, "1.0 MB"}, |
| 564 | {1024*1024*1024, "1.0 GB"}, |
| 565 | {10LL*1024*1024*1024, "10.0 GB"}, |
| 566 | {99LL*1024*1024*1024, "99.0 GB"}, |
| 567 | {105LL*1024*1024*1024, "105 GB"}, |
| 568 | {105LL*1024*1024*1024 + 500LL*1024*1024, "105 GB"}, |
| 569 | {~(1LL << 63), "8192 PB"}, |
| 570 | |
| 571 | {99*1024 + 103, "99.1 kB"}, |
| 572 | {1024*1024 + 103, "1.0 MB"}, |
| 573 | {1024*1024 + 205 * 1024, "1.2 MB"}, |
| 574 | {1024*1024*1024 + (927 * 1024*1024), "1.9 GB"}, |
| 575 | {10LL*1024*1024*1024, "10.0 GB"}, |
| 576 | {100LL*1024*1024*1024, "100 GB"}, |
| 577 | }; |
| 578 | |
| 579 | for (size_t i = 0; i < arraysize(cases); ++i) { |
| 580 | EXPECT_EQ(ASCIIToUTF16(cases[i].expected), |
| 581 | FormatBytesUnlocalized(cases[i].bytes)); |
| 582 | } |
| 583 | } |
| 584 | TEST(StringUtilTest, ReplaceSubstringsAfterOffset) { |
| 585 | static const struct { |
| 586 | const char* str; |
| 587 | string16::size_type start_offset; |
| 588 | const char* find_this; |
| 589 | const char* replace_with; |
| 590 | const char* expected; |
| 591 | } cases[] = { |
| 592 | {"aaa", 0, "a", "b", "bbb"}, |
| 593 | {"abb", 0, "ab", "a", "ab"}, |
| 594 | {"Removing some substrings inging", 0, "ing", "", "Remov some substrs "}, |
| 595 | {"Not found", 0, "x", "0", "Not found"}, |
| 596 | {"Not found again", 5, "x", "0", "Not found again"}, |
| 597 | {" Making it much longer ", 0, " ", "Four score and seven years ago", |
| 598 | "Four score and seven years agoMakingFour score and seven years agoit" |
| 599 | "Four score and seven years agomuchFour score and seven years agolonger" |
| 600 | "Four score and seven years ago"}, |
| 601 | {"Invalid offset", 9999, "t", "foobar", "Invalid offset"}, |
| 602 | {"Replace me only me once", 9, "me ", "", "Replace me only once"}, |
| 603 | {"abababab", 2, "ab", "c", "abccc"}, |
| 604 | }; |
| 605 | |
| 606 | for (size_t i = 0; i < arraysize(cases); i++) { |
| 607 | string16 str = ASCIIToUTF16(cases[i].str); |
| 608 | ReplaceSubstringsAfterOffset(&str, cases[i].start_offset, |
| 609 | ASCIIToUTF16(cases[i].find_this), |
| 610 | ASCIIToUTF16(cases[i].replace_with)); |
| 611 | EXPECT_EQ(ASCIIToUTF16(cases[i].expected), str); |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | TEST(StringUtilTest, ReplaceFirstSubstringAfterOffset) { |
| 616 | static const struct { |
| 617 | const char* str; |
| 618 | string16::size_type start_offset; |
| 619 | const char* find_this; |
| 620 | const char* replace_with; |
| 621 | const char* expected; |
| 622 | } cases[] = { |
| 623 | {"aaa", 0, "a", "b", "baa"}, |
| 624 | {"abb", 0, "ab", "a", "ab"}, |
| 625 | {"Removing some substrings inging", 0, "ing", "", |
| 626 | "Remov some substrings inging"}, |
| 627 | {"Not found", 0, "x", "0", "Not found"}, |
| 628 | {"Not found again", 5, "x", "0", "Not found again"}, |
| 629 | {" Making it much longer ", 0, " ", "Four score and seven years ago", |
| 630 | "Four score and seven years agoMaking it much longer "}, |
| 631 | {"Invalid offset", 9999, "t", "foobar", "Invalid offset"}, |
| 632 | {"Replace me only me once", 4, "me ", "", "Replace only me once"}, |
| 633 | {"abababab", 2, "ab", "c", "abcabab"}, |
| 634 | }; |
| 635 | |
| 636 | for (size_t i = 0; i < arraysize(cases); i++) { |
| 637 | string16 str = ASCIIToUTF16(cases[i].str); |
| 638 | ReplaceFirstSubstringAfterOffset(&str, cases[i].start_offset, |
| 639 | ASCIIToUTF16(cases[i].find_this), |
| 640 | ASCIIToUTF16(cases[i].replace_with)); |
| 641 | EXPECT_EQ(ASCIIToUTF16(cases[i].expected), str); |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | TEST(StringUtilTest, HexDigitToInt) { |
| 646 | EXPECT_EQ(0, HexDigitToInt('0')); |
| 647 | EXPECT_EQ(1, HexDigitToInt('1')); |
| 648 | EXPECT_EQ(2, HexDigitToInt('2')); |
| 649 | EXPECT_EQ(3, HexDigitToInt('3')); |
| 650 | EXPECT_EQ(4, HexDigitToInt('4')); |
| 651 | EXPECT_EQ(5, HexDigitToInt('5')); |
| 652 | EXPECT_EQ(6, HexDigitToInt('6')); |
| 653 | EXPECT_EQ(7, HexDigitToInt('7')); |
| 654 | EXPECT_EQ(8, HexDigitToInt('8')); |
| 655 | EXPECT_EQ(9, HexDigitToInt('9')); |
| 656 | EXPECT_EQ(10, HexDigitToInt('A')); |
| 657 | EXPECT_EQ(11, HexDigitToInt('B')); |
| 658 | EXPECT_EQ(12, HexDigitToInt('C')); |
| 659 | EXPECT_EQ(13, HexDigitToInt('D')); |
| 660 | EXPECT_EQ(14, HexDigitToInt('E')); |
| 661 | EXPECT_EQ(15, HexDigitToInt('F')); |
| 662 | |
| 663 | // Verify the lower case as well. |
| 664 | EXPECT_EQ(10, HexDigitToInt('a')); |
| 665 | EXPECT_EQ(11, HexDigitToInt('b')); |
| 666 | EXPECT_EQ(12, HexDigitToInt('c')); |
| 667 | EXPECT_EQ(13, HexDigitToInt('d')); |
| 668 | EXPECT_EQ(14, HexDigitToInt('e')); |
| 669 | EXPECT_EQ(15, HexDigitToInt('f')); |
| 670 | } |
| 671 | |
| 672 | // Test for Tokenize |
| 673 | template <typename STR> |
| 674 | void TokenizeTest() { |
| 675 | std::vector<STR> r; |
| 676 | size_t size; |
| 677 | |
| 678 | size = Tokenize(STR("This is a string"), STR(" "), &r); |
| 679 | EXPECT_EQ(4U, size); |
| 680 | ASSERT_EQ(4U, r.size()); |
| 681 | EXPECT_EQ(r[0], STR("This")); |
| 682 | EXPECT_EQ(r[1], STR("is")); |
| 683 | EXPECT_EQ(r[2], STR("a")); |
| 684 | EXPECT_EQ(r[3], STR("string")); |
| 685 | r.clear(); |
| 686 | |
| 687 | size = Tokenize(STR("one,two,three"), STR(","), &r); |
| 688 | EXPECT_EQ(3U, size); |
| 689 | ASSERT_EQ(3U, r.size()); |
| 690 | EXPECT_EQ(r[0], STR("one")); |
| 691 | EXPECT_EQ(r[1], STR("two")); |
| 692 | EXPECT_EQ(r[2], STR("three")); |
| 693 | r.clear(); |
| 694 | |
| 695 | size = Tokenize(STR("one,two:three;four"), STR(",:"), &r); |
| 696 | EXPECT_EQ(3U, size); |
| 697 | ASSERT_EQ(3U, r.size()); |
| 698 | EXPECT_EQ(r[0], STR("one")); |
| 699 | EXPECT_EQ(r[1], STR("two")); |
| 700 | EXPECT_EQ(r[2], STR("three;four")); |
| 701 | r.clear(); |
| 702 | |
| 703 | size = Tokenize(STR("one,two:three;four"), STR(";,:"), &r); |
| 704 | EXPECT_EQ(4U, size); |
| 705 | ASSERT_EQ(4U, r.size()); |
| 706 | EXPECT_EQ(r[0], STR("one")); |
| 707 | EXPECT_EQ(r[1], STR("two")); |
| 708 | EXPECT_EQ(r[2], STR("three")); |
| 709 | EXPECT_EQ(r[3], STR("four")); |
| 710 | r.clear(); |
| 711 | |
| 712 | size = Tokenize(STR("one, two, three"), STR(","), &r); |
| 713 | EXPECT_EQ(3U, size); |
| 714 | ASSERT_EQ(3U, r.size()); |
| 715 | EXPECT_EQ(r[0], STR("one")); |
| 716 | EXPECT_EQ(r[1], STR(" two")); |
| 717 | EXPECT_EQ(r[2], STR(" three")); |
| 718 | r.clear(); |
| 719 | |
| 720 | size = Tokenize(STR("one, two, three, "), STR(","), &r); |
| 721 | EXPECT_EQ(4U, size); |
| 722 | ASSERT_EQ(4U, r.size()); |
| 723 | EXPECT_EQ(r[0], STR("one")); |
| 724 | EXPECT_EQ(r[1], STR(" two")); |
| 725 | EXPECT_EQ(r[2], STR(" three")); |
| 726 | EXPECT_EQ(r[3], STR(" ")); |
| 727 | r.clear(); |
| 728 | |
| 729 | size = Tokenize(STR("one, two, three,"), STR(","), &r); |
| 730 | EXPECT_EQ(3U, size); |
| 731 | ASSERT_EQ(3U, r.size()); |
| 732 | EXPECT_EQ(r[0], STR("one")); |
| 733 | EXPECT_EQ(r[1], STR(" two")); |
| 734 | EXPECT_EQ(r[2], STR(" three")); |
| 735 | r.clear(); |
| 736 | |
| 737 | size = Tokenize(STR(), STR(","), &r); |
| 738 | EXPECT_EQ(0U, size); |
| 739 | ASSERT_EQ(0U, r.size()); |
| 740 | r.clear(); |
| 741 | |
| 742 | size = Tokenize(STR(","), STR(","), &r); |
| 743 | EXPECT_EQ(0U, size); |
| 744 | ASSERT_EQ(0U, r.size()); |
| 745 | r.clear(); |
| 746 | |
| 747 | size = Tokenize(STR(",;:."), STR(".:;,"), &r); |
| 748 | EXPECT_EQ(0U, size); |
| 749 | ASSERT_EQ(0U, r.size()); |
| 750 | r.clear(); |
| 751 | |
| 752 | size = Tokenize(STR("\t\ta\t"), STR("\t"), &r); |
| 753 | EXPECT_EQ(1U, size); |
| 754 | ASSERT_EQ(1U, r.size()); |
| 755 | EXPECT_EQ(r[0], STR("a")); |
| 756 | r.clear(); |
| 757 | |
| 758 | size = Tokenize(STR("\ta\t\nb\tcc"), STR("\n"), &r); |
| 759 | EXPECT_EQ(2U, size); |
| 760 | ASSERT_EQ(2U, r.size()); |
| 761 | EXPECT_EQ(r[0], STR("\ta\t")); |
| 762 | EXPECT_EQ(r[1], STR("b\tcc")); |
| 763 | r.clear(); |
| 764 | } |
| 765 | |
| 766 | TEST(StringUtilTest, TokenizeStdString) { |
| 767 | TokenizeTest<std::string>(); |
| 768 | } |
| 769 | |
| 770 | TEST(StringUtilTest, TokenizeStringPiece) { |
| 771 | TokenizeTest<StringPiece>(); |
| 772 | } |
| 773 | |
| 774 | // Test for JoinString |
| 775 | TEST(StringUtilTest, JoinString) { |
| 776 | std::vector<std::string> in; |
| 777 | EXPECT_EQ("", JoinString(in, ',')); |
| 778 | |
| 779 | in.push_back("a"); |
| 780 | EXPECT_EQ("a", JoinString(in, ',')); |
| 781 | |
| 782 | in.push_back("b"); |
| 783 | in.push_back("c"); |
| 784 | EXPECT_EQ("a,b,c", JoinString(in, ',')); |
| 785 | |
| 786 | in.push_back(std::string()); |
| 787 | EXPECT_EQ("a,b,c,", JoinString(in, ',')); |
| 788 | in.push_back(" "); |
| 789 | EXPECT_EQ("a|b|c|| ", JoinString(in, '|')); |
| 790 | } |
| 791 | |
| 792 | // Test for JoinString overloaded with std::string separator |
| 793 | TEST(StringUtilTest, JoinStringWithString) { |
| 794 | std::string separator(", "); |
| 795 | std::vector<std::string> parts; |
| 796 | EXPECT_EQ(std::string(), JoinString(parts, separator)); |
| 797 | |
| 798 | parts.push_back("a"); |
| 799 | EXPECT_EQ("a", JoinString(parts, separator)); |
| 800 | |
| 801 | parts.push_back("b"); |
| 802 | parts.push_back("c"); |
| 803 | EXPECT_EQ("a, b, c", JoinString(parts, separator)); |
| 804 | |
| 805 | parts.push_back(std::string()); |
| 806 | EXPECT_EQ("a, b, c, ", JoinString(parts, separator)); |
| 807 | parts.push_back(" "); |
| 808 | EXPECT_EQ("a|b|c|| ", JoinString(parts, "|")); |
| 809 | } |
| 810 | |
| 811 | // Test for JoinString overloaded with string16 separator |
| 812 | TEST(StringUtilTest, JoinStringWithString16) { |
| 813 | string16 separator = ASCIIToUTF16(", "); |
| 814 | std::vector<string16> parts; |
| 815 | EXPECT_EQ(string16(), JoinString(parts, separator)); |
| 816 | |
| 817 | parts.push_back(ASCIIToUTF16("a")); |
| 818 | EXPECT_EQ(ASCIIToUTF16("a"), JoinString(parts, separator)); |
| 819 | |
| 820 | parts.push_back(ASCIIToUTF16("b")); |
| 821 | parts.push_back(ASCIIToUTF16("c")); |
| 822 | EXPECT_EQ(ASCIIToUTF16("a, b, c"), JoinString(parts, separator)); |
| 823 | |
| 824 | parts.push_back(ASCIIToUTF16("")); |
| 825 | EXPECT_EQ(ASCIIToUTF16("a, b, c, "), JoinString(parts, separator)); |
| 826 | parts.push_back(ASCIIToUTF16(" ")); |
| 827 | EXPECT_EQ(ASCIIToUTF16("a|b|c|| "), JoinString(parts, ASCIIToUTF16("|"))); |
| 828 | } |
| 829 | |
| 830 | TEST(StringUtilTest, StartsWith) { |
| 831 | EXPECT_TRUE(StartsWithASCII("javascript:url", "javascript", true)); |
| 832 | EXPECT_FALSE(StartsWithASCII("JavaScript:url", "javascript", true)); |
| 833 | EXPECT_TRUE(StartsWithASCII("javascript:url", "javascript", false)); |
| 834 | EXPECT_TRUE(StartsWithASCII("JavaScript:url", "javascript", false)); |
| 835 | EXPECT_FALSE(StartsWithASCII("java", "javascript", true)); |
| 836 | EXPECT_FALSE(StartsWithASCII("java", "javascript", false)); |
| 837 | EXPECT_FALSE(StartsWithASCII(std::string(), "javascript", false)); |
| 838 | EXPECT_FALSE(StartsWithASCII(std::string(), "javascript", true)); |
| 839 | EXPECT_TRUE(StartsWithASCII("java", std::string(), false)); |
| 840 | EXPECT_TRUE(StartsWithASCII("java", std::string(), true)); |
| 841 | |
| 842 | EXPECT_TRUE(StartsWith(ASCIIToUTF16("javascript:url"), |
| 843 | ASCIIToUTF16("javascript"), true)); |
| 844 | EXPECT_FALSE(StartsWith(ASCIIToUTF16("JavaScript:url"), |
| 845 | ASCIIToUTF16("javascript"), true)); |
| 846 | EXPECT_TRUE(StartsWith(ASCIIToUTF16("javascript:url"), |
| 847 | ASCIIToUTF16("javascript"), false)); |
| 848 | EXPECT_TRUE(StartsWith(ASCIIToUTF16("JavaScript:url"), |
| 849 | ASCIIToUTF16("javascript"), false)); |
| 850 | EXPECT_FALSE(StartsWith(ASCIIToUTF16("java"), |
| 851 | ASCIIToUTF16("javascript"), true)); |
| 852 | EXPECT_FALSE(StartsWith(ASCIIToUTF16("java"), |
| 853 | ASCIIToUTF16("javascript"), false)); |
| 854 | EXPECT_FALSE(StartsWith(string16(), ASCIIToUTF16("javascript"), false)); |
| 855 | EXPECT_FALSE(StartsWith(string16(), ASCIIToUTF16("javascript"), true)); |
| 856 | EXPECT_TRUE(StartsWith(ASCIIToUTF16("java"), string16(), false)); |
| 857 | EXPECT_TRUE(StartsWith(ASCIIToUTF16("java"), string16(), true)); |
| 858 | } |
| 859 | |
| 860 | TEST(StringUtilTest, EndsWith) { |
| 861 | EXPECT_TRUE(EndsWith(ASCIIToUTF16("Foo.plugin"), |
| 862 | ASCIIToUTF16(".plugin"), true)); |
| 863 | EXPECT_FALSE(EndsWith(ASCIIToUTF16("Foo.Plugin"), |
| 864 | ASCIIToUTF16(".plugin"), true)); |
| 865 | EXPECT_TRUE(EndsWith(ASCIIToUTF16("Foo.plugin"), |
| 866 | ASCIIToUTF16(".plugin"), false)); |
| 867 | EXPECT_TRUE(EndsWith(ASCIIToUTF16("Foo.Plugin"), |
| 868 | ASCIIToUTF16(".plugin"), false)); |
| 869 | EXPECT_FALSE(EndsWith(ASCIIToUTF16(".plug"), ASCIIToUTF16(".plugin"), true)); |
| 870 | EXPECT_FALSE(EndsWith(ASCIIToUTF16(".plug"), ASCIIToUTF16(".plugin"), false)); |
| 871 | EXPECT_FALSE(EndsWith(ASCIIToUTF16("Foo.plugin Bar"), |
| 872 | ASCIIToUTF16(".plugin"), true)); |
| 873 | EXPECT_FALSE(EndsWith(ASCIIToUTF16("Foo.plugin Bar"), |
| 874 | ASCIIToUTF16(".plugin"), false)); |
| 875 | EXPECT_FALSE(EndsWith(string16(), ASCIIToUTF16(".plugin"), false)); |
| 876 | EXPECT_FALSE(EndsWith(string16(), ASCIIToUTF16(".plugin"), true)); |
| 877 | EXPECT_TRUE(EndsWith(ASCIIToUTF16("Foo.plugin"), string16(), false)); |
| 878 | EXPECT_TRUE(EndsWith(ASCIIToUTF16("Foo.plugin"), string16(), true)); |
| 879 | EXPECT_TRUE(EndsWith(ASCIIToUTF16(".plugin"), |
| 880 | ASCIIToUTF16(".plugin"), false)); |
| 881 | EXPECT_TRUE(EndsWith(ASCIIToUTF16(".plugin"), ASCIIToUTF16(".plugin"), true)); |
| 882 | EXPECT_TRUE(EndsWith(string16(), string16(), false)); |
| 883 | EXPECT_TRUE(EndsWith(string16(), string16(), true)); |
| 884 | } |
| 885 | |
| 886 | TEST(StringUtilTest, GetStringFWithOffsets) { |
| 887 | std::vector<string16> subst; |
| 888 | subst.push_back(ASCIIToUTF16("1")); |
| 889 | subst.push_back(ASCIIToUTF16("2")); |
| 890 | std::vector<size_t> offsets; |
| 891 | |
| 892 | ReplaceStringPlaceholders(ASCIIToUTF16("Hello, $1. Your number is $2."), |
| 893 | subst, |
| 894 | &offsets); |
| 895 | EXPECT_EQ(2U, offsets.size()); |
| 896 | EXPECT_EQ(7U, offsets[0]); |
| 897 | EXPECT_EQ(25U, offsets[1]); |
| 898 | offsets.clear(); |
| 899 | |
| 900 | ReplaceStringPlaceholders(ASCIIToUTF16("Hello, $2. Your number is $1."), |
| 901 | subst, |
| 902 | &offsets); |
| 903 | EXPECT_EQ(2U, offsets.size()); |
| 904 | EXPECT_EQ(25U, offsets[0]); |
| 905 | EXPECT_EQ(7U, offsets[1]); |
| 906 | offsets.clear(); |
| 907 | } |
| 908 | |
| 909 | TEST(StringUtilTest, ReplaceStringPlaceholdersTooFew) { |
| 910 | // Test whether replacestringplaceholders works as expected when there |
| 911 | // are fewer inputs than outputs. |
| 912 | std::vector<string16> subst; |
| 913 | subst.push_back(ASCIIToUTF16("9a")); |
| 914 | subst.push_back(ASCIIToUTF16("8b")); |
| 915 | subst.push_back(ASCIIToUTF16("7c")); |
| 916 | |
| 917 | string16 formatted = |
| 918 | ReplaceStringPlaceholders( |
| 919 | ASCIIToUTF16("$1a,$2b,$3c,$4d,$5e,$6f,$1g,$2h,$3i"), subst, NULL); |
| 920 | |
| 921 | EXPECT_EQ(formatted, ASCIIToUTF16("9aa,8bb,7cc,d,e,f,9ag,8bh,7ci")); |
| 922 | } |
| 923 | |
| 924 | TEST(StringUtilTest, ReplaceStringPlaceholders) { |
| 925 | std::vector<string16> subst; |
| 926 | subst.push_back(ASCIIToUTF16("9a")); |
| 927 | subst.push_back(ASCIIToUTF16("8b")); |
| 928 | subst.push_back(ASCIIToUTF16("7c")); |
| 929 | subst.push_back(ASCIIToUTF16("6d")); |
| 930 | subst.push_back(ASCIIToUTF16("5e")); |
| 931 | subst.push_back(ASCIIToUTF16("4f")); |
| 932 | subst.push_back(ASCIIToUTF16("3g")); |
| 933 | subst.push_back(ASCIIToUTF16("2h")); |
| 934 | subst.push_back(ASCIIToUTF16("1i")); |
| 935 | |
| 936 | string16 formatted = |
| 937 | ReplaceStringPlaceholders( |
| 938 | ASCIIToUTF16("$1a,$2b,$3c,$4d,$5e,$6f,$7g,$8h,$9i"), subst, NULL); |
| 939 | |
| 940 | EXPECT_EQ(formatted, ASCIIToUTF16("9aa,8bb,7cc,6dd,5ee,4ff,3gg,2hh,1ii")); |
| 941 | } |
| 942 | |
| 943 | TEST(StringUtilTest, ReplaceStringPlaceholdersMoreThan9Replacements) { |
| 944 | std::vector<string16> subst; |
| 945 | subst.push_back(ASCIIToUTF16("9a")); |
| 946 | subst.push_back(ASCIIToUTF16("8b")); |
| 947 | subst.push_back(ASCIIToUTF16("7c")); |
| 948 | subst.push_back(ASCIIToUTF16("6d")); |
| 949 | subst.push_back(ASCIIToUTF16("5e")); |
| 950 | subst.push_back(ASCIIToUTF16("4f")); |
| 951 | subst.push_back(ASCIIToUTF16("3g")); |
| 952 | subst.push_back(ASCIIToUTF16("2h")); |
| 953 | subst.push_back(ASCIIToUTF16("1i")); |
| 954 | subst.push_back(ASCIIToUTF16("0j")); |
| 955 | subst.push_back(ASCIIToUTF16("-1k")); |
| 956 | subst.push_back(ASCIIToUTF16("-2l")); |
| 957 | subst.push_back(ASCIIToUTF16("-3m")); |
| 958 | subst.push_back(ASCIIToUTF16("-4n")); |
| 959 | |
| 960 | string16 formatted = |
| 961 | ReplaceStringPlaceholders( |
| 962 | ASCIIToUTF16("$1a,$2b,$3c,$4d,$5e,$6f,$7g,$8h,$9i," |
| 963 | "$10j,$11k,$12l,$13m,$14n,$1"), subst, NULL); |
| 964 | |
| 965 | EXPECT_EQ(formatted, ASCIIToUTF16("9aa,8bb,7cc,6dd,5ee,4ff,3gg,2hh," |
| 966 | "1ii,0jj,-1kk,-2ll,-3mm,-4nn,9a")); |
| 967 | } |
| 968 | |
| 969 | TEST(StringUtilTest, StdStringReplaceStringPlaceholders) { |
| 970 | std::vector<std::string> subst; |
| 971 | subst.push_back("9a"); |
| 972 | subst.push_back("8b"); |
| 973 | subst.push_back("7c"); |
| 974 | subst.push_back("6d"); |
| 975 | subst.push_back("5e"); |
| 976 | subst.push_back("4f"); |
| 977 | subst.push_back("3g"); |
| 978 | subst.push_back("2h"); |
| 979 | subst.push_back("1i"); |
| 980 | |
| 981 | std::string formatted = |
| 982 | ReplaceStringPlaceholders( |
| 983 | "$1a,$2b,$3c,$4d,$5e,$6f,$7g,$8h,$9i", subst, NULL); |
| 984 | |
| 985 | EXPECT_EQ(formatted, "9aa,8bb,7cc,6dd,5ee,4ff,3gg,2hh,1ii"); |
| 986 | } |
| 987 | |
| 988 | TEST(StringUtilTest, ReplaceStringPlaceholdersConsecutiveDollarSigns) { |
| 989 | std::vector<std::string> subst; |
| 990 | subst.push_back("a"); |
| 991 | subst.push_back("b"); |
| 992 | subst.push_back("c"); |
| 993 | EXPECT_EQ(ReplaceStringPlaceholders("$$1 $$$2 $$$$3", subst, NULL), |
| 994 | "$1 $$2 $$$3"); |
| 995 | } |
| 996 | |
| 997 | TEST(StringUtilTest, MatchPatternTest) { |
| 998 | EXPECT_TRUE(MatchPattern("www.google.com", "*.com")); |
| 999 | EXPECT_TRUE(MatchPattern("www.google.com", "*")); |
| 1000 | EXPECT_FALSE(MatchPattern("www.google.com", "www*.g*.org")); |
| 1001 | EXPECT_TRUE(MatchPattern("Hello", "H?l?o")); |
| 1002 | EXPECT_FALSE(MatchPattern("www.google.com", "http://*)")); |
| 1003 | EXPECT_FALSE(MatchPattern("www.msn.com", "*.COM")); |
| 1004 | EXPECT_TRUE(MatchPattern("Hello*1234", "He??o\\*1*")); |
| 1005 | EXPECT_FALSE(MatchPattern("", "*.*")); |
| 1006 | EXPECT_TRUE(MatchPattern("", "*")); |
| 1007 | EXPECT_TRUE(MatchPattern("", "?")); |
| 1008 | EXPECT_TRUE(MatchPattern("", "")); |
| 1009 | EXPECT_FALSE(MatchPattern("Hello", "")); |
| 1010 | EXPECT_TRUE(MatchPattern("Hello*", "Hello*")); |
| 1011 | // Stop after a certain recursion depth. |
| 1012 | EXPECT_FALSE(MatchPattern("123456789012345678", "?????????????????*")); |
| 1013 | |
| 1014 | // Test UTF8 matching. |
| 1015 | EXPECT_TRUE(MatchPattern("heart: \xe2\x99\xa0", "*\xe2\x99\xa0")); |
| 1016 | EXPECT_TRUE(MatchPattern("heart: \xe2\x99\xa0.", "heart: ?.")); |
| 1017 | EXPECT_TRUE(MatchPattern("hearts: \xe2\x99\xa0\xe2\x99\xa0", "*")); |
| 1018 | // Invalid sequences should be handled as a single invalid character. |
| 1019 | EXPECT_TRUE(MatchPattern("invalid: \xef\xbf\xbe", "invalid: ?")); |
| 1020 | // If the pattern has invalid characters, it shouldn't match anything. |
| 1021 | EXPECT_FALSE(MatchPattern("\xf4\x90\x80\x80", "\xf4\x90\x80\x80")); |
| 1022 | |
| 1023 | // Test UTF16 character matching. |
| 1024 | EXPECT_TRUE(MatchPattern(UTF8ToUTF16("www.google.com"), |
| 1025 | UTF8ToUTF16("*.com"))); |
| 1026 | EXPECT_TRUE(MatchPattern(UTF8ToUTF16("Hello*1234"), |
| 1027 | UTF8ToUTF16("He??o\\*1*"))); |
| 1028 | |
| 1029 | // This test verifies that consecutive wild cards are collapsed into 1 |
| 1030 | // wildcard (when this doesn't occur, MatchPattern reaches it's maximum |
| 1031 | // recursion depth). |
| 1032 | EXPECT_TRUE(MatchPattern(UTF8ToUTF16("Hello"), |
| 1033 | UTF8ToUTF16("He********************************o"))); |
| 1034 | } |
| 1035 | |
| 1036 | TEST(StringUtilTest, LcpyTest) { |
| 1037 | // Test the normal case where we fit in our buffer. |
| 1038 | { |
| 1039 | char dst[10]; |
| 1040 | wchar_t wdst[10]; |
| 1041 | EXPECT_EQ(7U, strlcpy(dst, "abcdefg", arraysize(dst))); |
| 1042 | EXPECT_EQ(0, memcmp(dst, "abcdefg", 8)); |
| 1043 | EXPECT_EQ(7U, wcslcpy(wdst, L"abcdefg", arraysize(wdst))); |
| 1044 | EXPECT_EQ(0, memcmp(wdst, L"abcdefg", sizeof(wchar_t) * 8)); |
| 1045 | } |
| 1046 | |
| 1047 | // Test dst_size == 0, nothing should be written to |dst| and we should |
| 1048 | // have the equivalent of strlen(src). |
| 1049 | { |
| 1050 | char dst[2] = {1, 2}; |
| 1051 | wchar_t wdst[2] = {1, 2}; |
| 1052 | EXPECT_EQ(7U, strlcpy(dst, "abcdefg", 0)); |
| 1053 | EXPECT_EQ(1, dst[0]); |
| 1054 | EXPECT_EQ(2, dst[1]); |
| 1055 | EXPECT_EQ(7U, wcslcpy(wdst, L"abcdefg", 0)); |
| 1056 | EXPECT_EQ(static_cast<wchar_t>(1), wdst[0]); |
| 1057 | EXPECT_EQ(static_cast<wchar_t>(2), wdst[1]); |
| 1058 | } |
| 1059 | |
| 1060 | // Test the case were we _just_ competely fit including the null. |
| 1061 | { |
| 1062 | char dst[8]; |
| 1063 | wchar_t wdst[8]; |
| 1064 | EXPECT_EQ(7U, strlcpy(dst, "abcdefg", arraysize(dst))); |
| 1065 | EXPECT_EQ(0, memcmp(dst, "abcdefg", 8)); |
| 1066 | EXPECT_EQ(7U, wcslcpy(wdst, L"abcdefg", arraysize(wdst))); |
| 1067 | EXPECT_EQ(0, memcmp(wdst, L"abcdefg", sizeof(wchar_t) * 8)); |
| 1068 | } |
| 1069 | |
| 1070 | // Test the case were we we are one smaller, so we can't fit the null. |
| 1071 | { |
| 1072 | char dst[7]; |
| 1073 | wchar_t wdst[7]; |
| 1074 | EXPECT_EQ(7U, strlcpy(dst, "abcdefg", arraysize(dst))); |
| 1075 | EXPECT_EQ(0, memcmp(dst, "abcdef", 7)); |
| 1076 | EXPECT_EQ(7U, wcslcpy(wdst, L"abcdefg", arraysize(wdst))); |
| 1077 | EXPECT_EQ(0, memcmp(wdst, L"abcdef", sizeof(wchar_t) * 7)); |
| 1078 | } |
| 1079 | |
| 1080 | // Test the case were we are just too small. |
| 1081 | { |
| 1082 | char dst[3]; |
| 1083 | wchar_t wdst[3]; |
| 1084 | EXPECT_EQ(7U, strlcpy(dst, "abcdefg", arraysize(dst))); |
| 1085 | EXPECT_EQ(0, memcmp(dst, "ab", 3)); |
| 1086 | EXPECT_EQ(7U, wcslcpy(wdst, L"abcdefg", arraysize(wdst))); |
| 1087 | EXPECT_EQ(0, memcmp(wdst, L"ab", sizeof(wchar_t) * 3)); |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | TEST(StringUtilTest, WprintfFormatPortabilityTest) { |
| 1092 | static const struct { |
| 1093 | const wchar_t* input; |
| 1094 | bool portable; |
| 1095 | } cases[] = { |
| 1096 | { L"%ls", true }, |
| 1097 | { L"%s", false }, |
| 1098 | { L"%S", false }, |
| 1099 | { L"%lS", false }, |
| 1100 | { L"Hello, %s", false }, |
| 1101 | { L"%lc", true }, |
| 1102 | { L"%c", false }, |
| 1103 | { L"%C", false }, |
| 1104 | { L"%lC", false }, |
| 1105 | { L"%ls %s", false }, |
| 1106 | { L"%s %ls", false }, |
| 1107 | { L"%s %ls %s", false }, |
| 1108 | { L"%f", true }, |
| 1109 | { L"%f %F", false }, |
| 1110 | { L"%d %D", false }, |
| 1111 | { L"%o %O", false }, |
| 1112 | { L"%u %U", false }, |
| 1113 | { L"%f %d %o %u", true }, |
| 1114 | { L"%-8d (%02.1f%)", true }, |
| 1115 | { L"% 10s", false }, |
| 1116 | { L"% 10ls", true } |
| 1117 | }; |
| 1118 | for (size_t i = 0; i < arraysize(cases); ++i) |
| 1119 | EXPECT_EQ(cases[i].portable, IsWprintfFormatPortable(cases[i].input)); |
| 1120 | } |
| 1121 | |
| 1122 | TEST(StringUtilTest, RemoveChars) { |
| 1123 | const char kRemoveChars[] = "-/+*"; |
| 1124 | std::string input = "A-+bc/d!*"; |
| 1125 | EXPECT_TRUE(RemoveChars(input, kRemoveChars, &input)); |
| 1126 | EXPECT_EQ("Abcd!", input); |
| 1127 | |
| 1128 | // No characters match kRemoveChars. |
| 1129 | EXPECT_FALSE(RemoveChars(input, kRemoveChars, &input)); |
| 1130 | EXPECT_EQ("Abcd!", input); |
| 1131 | |
| 1132 | // Empty string. |
| 1133 | input.clear(); |
| 1134 | EXPECT_FALSE(RemoveChars(input, kRemoveChars, &input)); |
| 1135 | EXPECT_EQ(std::string(), input); |
| 1136 | } |
| 1137 | |
| 1138 | TEST(StringUtilTest, ReplaceChars) { |
| 1139 | struct TestData { |
| 1140 | const char* input; |
| 1141 | const char* replace_chars; |
| 1142 | const char* replace_with; |
| 1143 | const char* output; |
| 1144 | bool result; |
| 1145 | } cases[] = { |
| 1146 | { "", "", "", "", false }, |
| 1147 | { "test", "", "", "test", false }, |
| 1148 | { "test", "", "!", "test", false }, |
| 1149 | { "test", "z", "!", "test", false }, |
| 1150 | { "test", "e", "!", "t!st", true }, |
| 1151 | { "test", "e", "!?", "t!?st", true }, |
| 1152 | { "test", "ez", "!", "t!st", true }, |
| 1153 | { "test", "zed", "!?", "t!?st", true }, |
| 1154 | { "test", "t", "!?", "!?es!?", true }, |
| 1155 | { "test", "et", "!>", "!>!>s!>", true }, |
| 1156 | { "test", "zest", "!", "!!!!", true }, |
| 1157 | { "test", "szt", "!", "!e!!", true }, |
| 1158 | { "test", "t", "test", "testestest", true }, |
| 1159 | }; |
| 1160 | |
| 1161 | for (size_t i = 0; i < arraysize(cases); ++i) { |
| 1162 | std::string output; |
| 1163 | bool result = ReplaceChars(cases[i].input, |
| 1164 | cases[i].replace_chars, |
| 1165 | cases[i].replace_with, |
| 1166 | &output); |
| 1167 | EXPECT_EQ(cases[i].result, result); |
| 1168 | EXPECT_EQ(cases[i].output, output); |
| 1169 | } |
| 1170 | } |
| 1171 | |
| 1172 | TEST(StringUtilTest, ContainsOnlyChars) { |
| 1173 | // Providing an empty list of characters should return false but for the empty |
| 1174 | // string. |
| 1175 | EXPECT_TRUE(ContainsOnlyChars(std::string(), std::string())); |
| 1176 | EXPECT_FALSE(ContainsOnlyChars("Hello", std::string())); |
| 1177 | |
| 1178 | EXPECT_TRUE(ContainsOnlyChars(std::string(), "1234")); |
| 1179 | EXPECT_TRUE(ContainsOnlyChars("1", "1234")); |
| 1180 | EXPECT_TRUE(ContainsOnlyChars("1", "4321")); |
| 1181 | EXPECT_TRUE(ContainsOnlyChars("123", "4321")); |
| 1182 | EXPECT_FALSE(ContainsOnlyChars("123a", "4321")); |
| 1183 | |
| 1184 | EXPECT_TRUE(ContainsOnlyChars(std::string(), kWhitespaceASCII)); |
| 1185 | EXPECT_TRUE(ContainsOnlyChars(" ", kWhitespaceASCII)); |
| 1186 | EXPECT_TRUE(ContainsOnlyChars("\t", kWhitespaceASCII)); |
| 1187 | EXPECT_TRUE(ContainsOnlyChars("\t \r \n ", kWhitespaceASCII)); |
| 1188 | EXPECT_FALSE(ContainsOnlyChars("a", kWhitespaceASCII)); |
| 1189 | EXPECT_FALSE(ContainsOnlyChars("\thello\r \n ", kWhitespaceASCII)); |
| 1190 | |
| 1191 | EXPECT_TRUE(ContainsOnlyChars(string16(), kWhitespaceUTF16)); |
| 1192 | EXPECT_TRUE(ContainsOnlyChars(ASCIIToUTF16(" "), kWhitespaceUTF16)); |
| 1193 | EXPECT_TRUE(ContainsOnlyChars(ASCIIToUTF16("\t"), kWhitespaceUTF16)); |
| 1194 | EXPECT_TRUE(ContainsOnlyChars(ASCIIToUTF16("\t \r \n "), kWhitespaceUTF16)); |
| 1195 | EXPECT_FALSE(ContainsOnlyChars(ASCIIToUTF16("a"), kWhitespaceUTF16)); |
| 1196 | EXPECT_FALSE(ContainsOnlyChars(ASCIIToUTF16("\thello\r \n "), |
| 1197 | kWhitespaceUTF16)); |
| 1198 | } |
| 1199 | |
| 1200 | class WriteIntoTest : public testing::Test { |
| 1201 | protected: |
| 1202 | static void WritesCorrectly(size_t num_chars) { |
| 1203 | std::string buffer; |
| 1204 | char kOriginal[] = "supercali"; |
| 1205 | strncpy(WriteInto(&buffer, num_chars + 1), kOriginal, num_chars); |
| 1206 | // Using std::string(buffer.c_str()) instead of |buffer| truncates the |
| 1207 | // string at the first \0. |
| 1208 | EXPECT_EQ(std::string(kOriginal, |
| 1209 | std::min(num_chars, arraysize(kOriginal) - 1)), |
| 1210 | std::string(buffer.c_str())); |
| 1211 | EXPECT_EQ(num_chars, buffer.size()); |
| 1212 | } |
| 1213 | }; |
| 1214 | |
| 1215 | TEST_F(WriteIntoTest, WriteInto) { |
| 1216 | // Validate that WriteInto reserves enough space and |
| 1217 | // sizes a string correctly. |
| 1218 | WritesCorrectly(1); |
| 1219 | WritesCorrectly(2); |
| 1220 | WritesCorrectly(5000); |
| 1221 | |
| 1222 | // Validate that WriteInto doesn't modify other strings |
| 1223 | // when using a Copy-on-Write implementation. |
| 1224 | const char kLive[] = "live"; |
| 1225 | const char kDead[] = "dead"; |
| 1226 | const std::string live = kLive; |
| 1227 | std::string dead = live; |
| 1228 | strncpy(WriteInto(&dead, 5), kDead, 4); |
| 1229 | EXPECT_EQ(kDead, dead); |
| 1230 | EXPECT_EQ(4u, dead.size()); |
| 1231 | EXPECT_EQ(kLive, live); |
| 1232 | EXPECT_EQ(4u, live.size()); |
| 1233 | } |
| 1234 | |
| 1235 | } // namespace base |