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| 1 // Copyright (c) 2012 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 <math.h> | |
| 6 | |
| 7 #include <limits> | |
| 8 | |
| 9 #include "base/string_number_conversions.h" | |
| 10 #include "base/utf_string_conversions.h" | |
| 11 #include "testing/gtest/include/gtest/gtest.h" | |
| 12 | |
| 13 namespace base { | |
| 14 | |
| 15 namespace { | |
| 16 | |
| 17 template <typename INT> | |
| 18 struct IntToStringTest { | |
| 19 INT num; | |
| 20 const char* sexpected; | |
| 21 const char* uexpected; | |
| 22 }; | |
| 23 | |
| 24 } // namespace | |
| 25 | |
| 26 TEST(StringNumberConversionsTest, IntToString) { | |
| 27 static const IntToStringTest<int> int_tests[] = { | |
| 28 { 0, "0", "0" }, | |
| 29 { -1, "-1", "4294967295" }, | |
| 30 { std::numeric_limits<int>::max(), "2147483647", "2147483647" }, | |
| 31 { std::numeric_limits<int>::min(), "-2147483648", "2147483648" }, | |
| 32 }; | |
| 33 static const IntToStringTest<int64> int64_tests[] = { | |
| 34 { 0, "0", "0" }, | |
| 35 { -1, "-1", "18446744073709551615" }, | |
| 36 { std::numeric_limits<int64>::max(), | |
| 37 "9223372036854775807", | |
| 38 "9223372036854775807", }, | |
| 39 { std::numeric_limits<int64>::min(), | |
| 40 "-9223372036854775808", | |
| 41 "9223372036854775808" }, | |
| 42 }; | |
| 43 | |
| 44 for (size_t i = 0; i < arraysize(int_tests); ++i) { | |
| 45 const IntToStringTest<int>* test = &int_tests[i]; | |
| 46 EXPECT_EQ(IntToString(test->num), test->sexpected); | |
| 47 EXPECT_EQ(IntToString16(test->num), UTF8ToUTF16(test->sexpected)); | |
| 48 EXPECT_EQ(UintToString(test->num), test->uexpected); | |
| 49 EXPECT_EQ(UintToString16(test->num), UTF8ToUTF16(test->uexpected)); | |
| 50 } | |
| 51 for (size_t i = 0; i < arraysize(int64_tests); ++i) { | |
| 52 const IntToStringTest<int64>* test = &int64_tests[i]; | |
| 53 EXPECT_EQ(Int64ToString(test->num), test->sexpected); | |
| 54 EXPECT_EQ(Int64ToString16(test->num), UTF8ToUTF16(test->sexpected)); | |
| 55 EXPECT_EQ(Uint64ToString(test->num), test->uexpected); | |
| 56 EXPECT_EQ(Uint64ToString16(test->num), UTF8ToUTF16(test->uexpected)); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 TEST(StringNumberConversionsTest, Uint64ToString) { | |
| 61 static const struct { | |
| 62 uint64 input; | |
| 63 std::string output; | |
| 64 } cases[] = { | |
| 65 {0, "0"}, | |
| 66 {42, "42"}, | |
| 67 {INT_MAX, "2147483647"}, | |
| 68 {kuint64max, "18446744073709551615"}, | |
| 69 }; | |
| 70 | |
| 71 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) | |
| 72 EXPECT_EQ(cases[i].output, Uint64ToString(cases[i].input)); | |
| 73 } | |
| 74 | |
| 75 TEST(StringNumberConversionsTest, StringToInt) { | |
| 76 static const struct { | |
| 77 std::string input; | |
| 78 int output; | |
| 79 bool success; | |
| 80 } cases[] = { | |
| 81 {"0", 0, true}, | |
| 82 {"42", 42, true}, | |
| 83 {"42\x99", 42, false}, | |
| 84 {"\x99" "42\x99", 0, false}, | |
| 85 {"-2147483648", INT_MIN, true}, | |
| 86 {"2147483647", INT_MAX, true}, | |
| 87 {"", 0, false}, | |
| 88 {" 42", 42, false}, | |
| 89 {"42 ", 42, false}, | |
| 90 {"\t\n\v\f\r 42", 42, false}, | |
| 91 {"blah42", 0, false}, | |
| 92 {"42blah", 42, false}, | |
| 93 {"blah42blah", 0, false}, | |
| 94 {"-273.15", -273, false}, | |
| 95 {"+98.6", 98, false}, | |
| 96 {"--123", 0, false}, | |
| 97 {"++123", 0, false}, | |
| 98 {"-+123", 0, false}, | |
| 99 {"+-123", 0, false}, | |
| 100 {"-", 0, false}, | |
| 101 {"-2147483649", INT_MIN, false}, | |
| 102 {"-99999999999", INT_MIN, false}, | |
| 103 {"2147483648", INT_MAX, false}, | |
| 104 {"99999999999", INT_MAX, false}, | |
| 105 }; | |
| 106 | |
| 107 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 108 int output = 0; | |
| 109 EXPECT_EQ(cases[i].success, StringToInt(cases[i].input, &output)); | |
| 110 EXPECT_EQ(cases[i].output, output); | |
| 111 | |
| 112 string16 utf16_input = UTF8ToUTF16(cases[i].input); | |
| 113 output = 0; | |
| 114 EXPECT_EQ(cases[i].success, StringToInt(utf16_input, &output)); | |
| 115 EXPECT_EQ(cases[i].output, output); | |
| 116 } | |
| 117 | |
| 118 // One additional test to verify that conversion of numbers in strings with | |
| 119 // embedded NUL characters. The NUL and extra data after it should be | |
| 120 // interpreted as junk after the number. | |
| 121 const char input[] = "6\06"; | |
| 122 std::string input_string(input, arraysize(input) - 1); | |
| 123 int output; | |
| 124 EXPECT_FALSE(StringToInt(input_string, &output)); | |
| 125 EXPECT_EQ(6, output); | |
| 126 | |
| 127 string16 utf16_input = UTF8ToUTF16(input_string); | |
| 128 output = 0; | |
| 129 EXPECT_FALSE(StringToInt(utf16_input, &output)); | |
| 130 EXPECT_EQ(6, output); | |
| 131 | |
| 132 output = 0; | |
| 133 const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0}; | |
| 134 EXPECT_FALSE(StringToInt(string16(negative_wide_input), &output)); | |
| 135 EXPECT_EQ(0, output); | |
| 136 } | |
| 137 | |
| 138 TEST(StringNumberConversionsTest, StringToInt64) { | |
| 139 static const struct { | |
| 140 std::string input; | |
| 141 int64 output; | |
| 142 bool success; | |
| 143 } cases[] = { | |
| 144 {"0", 0, true}, | |
| 145 {"42", 42, true}, | |
| 146 {"-2147483648", INT_MIN, true}, | |
| 147 {"2147483647", INT_MAX, true}, | |
| 148 {"-2147483649", GG_INT64_C(-2147483649), true}, | |
| 149 {"-99999999999", GG_INT64_C(-99999999999), true}, | |
| 150 {"2147483648", GG_INT64_C(2147483648), true}, | |
| 151 {"99999999999", GG_INT64_C(99999999999), true}, | |
| 152 {"9223372036854775807", kint64max, true}, | |
| 153 {"-9223372036854775808", kint64min, true}, | |
| 154 {"09", 9, true}, | |
| 155 {"-09", -9, true}, | |
| 156 {"", 0, false}, | |
| 157 {" 42", 42, false}, | |
| 158 {"42 ", 42, false}, | |
| 159 {"0x42", 0, false}, | |
| 160 {"\t\n\v\f\r 42", 42, false}, | |
| 161 {"blah42", 0, false}, | |
| 162 {"42blah", 42, false}, | |
| 163 {"blah42blah", 0, false}, | |
| 164 {"-273.15", -273, false}, | |
| 165 {"+98.6", 98, false}, | |
| 166 {"--123", 0, false}, | |
| 167 {"++123", 0, false}, | |
| 168 {"-+123", 0, false}, | |
| 169 {"+-123", 0, false}, | |
| 170 {"-", 0, false}, | |
| 171 {"-9223372036854775809", kint64min, false}, | |
| 172 {"-99999999999999999999", kint64min, false}, | |
| 173 {"9223372036854775808", kint64max, false}, | |
| 174 {"99999999999999999999", kint64max, false}, | |
| 175 }; | |
| 176 | |
| 177 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 178 int64 output = 0; | |
| 179 EXPECT_EQ(cases[i].success, StringToInt64(cases[i].input, &output)); | |
| 180 EXPECT_EQ(cases[i].output, output); | |
| 181 | |
| 182 string16 utf16_input = UTF8ToUTF16(cases[i].input); | |
| 183 output = 0; | |
| 184 EXPECT_EQ(cases[i].success, StringToInt64(utf16_input, &output)); | |
| 185 EXPECT_EQ(cases[i].output, output); | |
| 186 } | |
| 187 | |
| 188 // One additional test to verify that conversion of numbers in strings with | |
| 189 // embedded NUL characters. The NUL and extra data after it should be | |
| 190 // interpreted as junk after the number. | |
| 191 const char input[] = "6\06"; | |
| 192 std::string input_string(input, arraysize(input) - 1); | |
| 193 int64 output; | |
| 194 EXPECT_FALSE(StringToInt64(input_string, &output)); | |
| 195 EXPECT_EQ(6, output); | |
| 196 | |
| 197 string16 utf16_input = UTF8ToUTF16(input_string); | |
| 198 output = 0; | |
| 199 EXPECT_FALSE(StringToInt64(utf16_input, &output)); | |
| 200 EXPECT_EQ(6, output); | |
| 201 } | |
| 202 | |
| 203 TEST(StringNumberConversionsTest, HexStringToInt) { | |
| 204 static const struct { | |
| 205 std::string input; | |
| 206 int64 output; | |
| 207 bool success; | |
| 208 } cases[] = { | |
| 209 {"0", 0, true}, | |
| 210 {"42", 66, true}, | |
| 211 {"-42", -66, true}, | |
| 212 {"+42", 66, true}, | |
| 213 {"7fffffff", INT_MAX, true}, | |
| 214 {"-80000000", INT_MIN, true}, | |
| 215 {"80000000", INT_MAX, false}, // Overflow test. | |
| 216 {"-80000001", INT_MIN, false}, // Underflow test. | |
| 217 {"0x42", 66, true}, | |
| 218 {"-0x42", -66, true}, | |
| 219 {"+0x42", 66, true}, | |
| 220 {"0x7fffffff", INT_MAX, true}, | |
| 221 {"-0x80000000", INT_MIN, true}, | |
| 222 {"-80000000", INT_MIN, true}, | |
| 223 {"80000000", INT_MAX, false}, // Overflow test. | |
| 224 {"-80000001", INT_MIN, false}, // Underflow test. | |
| 225 {"0x0f", 15, true}, | |
| 226 {"0f", 15, true}, | |
| 227 {" 45", 0x45, false}, | |
| 228 {"\t\n\v\f\r 0x45", 0x45, false}, | |
| 229 {" 45", 0x45, false}, | |
| 230 {"45 ", 0x45, false}, | |
| 231 {"45:", 0x45, false}, | |
| 232 {"efgh", 0xef, false}, | |
| 233 {"0xefgh", 0xef, false}, | |
| 234 {"hgfe", 0, false}, | |
| 235 {"-", 0, false}, | |
| 236 {"", 0, false}, | |
| 237 {"0x", 0, false}, | |
| 238 }; | |
| 239 | |
| 240 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 241 int output = 0; | |
| 242 EXPECT_EQ(cases[i].success, HexStringToInt(cases[i].input, &output)); | |
| 243 EXPECT_EQ(cases[i].output, output); | |
| 244 } | |
| 245 // One additional test to verify that conversion of numbers in strings with | |
| 246 // embedded NUL characters. The NUL and extra data after it should be | |
| 247 // interpreted as junk after the number. | |
| 248 const char input[] = "0xc0ffee\09"; | |
| 249 std::string input_string(input, arraysize(input) - 1); | |
| 250 int output; | |
| 251 EXPECT_FALSE(HexStringToInt(input_string, &output)); | |
| 252 EXPECT_EQ(0xc0ffee, output); | |
| 253 } | |
| 254 | |
| 255 TEST(StringNumberConversionsTest, HexStringToInt64) { | |
| 256 static const struct { | |
| 257 std::string input; | |
| 258 int64 output; | |
| 259 bool success; | |
| 260 } cases[] = { | |
| 261 {"0", 0, true}, | |
| 262 {"42", 66, true}, | |
| 263 {"-42", -66, true}, | |
| 264 {"+42", 66, true}, | |
| 265 {"40acd88557b", GG_INT64_C(4444444448123), true}, | |
| 266 {"7fffffff", INT_MAX, true}, | |
| 267 {"-80000000", INT_MIN, true}, | |
| 268 {"ffffffff", 0xffffffff, true}, | |
| 269 {"DeadBeef", 0xdeadbeef, true}, | |
| 270 {"0x42", 66, true}, | |
| 271 {"-0x42", -66, true}, | |
| 272 {"+0x42", 66, true}, | |
| 273 {"0x40acd88557b", GG_INT64_C(4444444448123), true}, | |
| 274 {"0x7fffffff", INT_MAX, true}, | |
| 275 {"-0x80000000", INT_MIN, true}, | |
| 276 {"0xffffffff", 0xffffffff, true}, | |
| 277 {"0XDeadBeef", 0xdeadbeef, true}, | |
| 278 {"0x7fffffffffffffff", kint64max, true}, | |
| 279 {"-0x8000000000000000", kint64min, true}, | |
| 280 {"0x8000000000000000", kint64max, false}, // Overflow test. | |
| 281 {"-0x8000000000000001", kint64min, false}, // Underflow test. | |
| 282 {"0x0f", 15, true}, | |
| 283 {"0f", 15, true}, | |
| 284 {" 45", 0x45, false}, | |
| 285 {"\t\n\v\f\r 0x45", 0x45, false}, | |
| 286 {" 45", 0x45, false}, | |
| 287 {"45 ", 0x45, false}, | |
| 288 {"45:", 0x45, false}, | |
| 289 {"efgh", 0xef, false}, | |
| 290 {"0xefgh", 0xef, false}, | |
| 291 {"hgfe", 0, false}, | |
| 292 {"-", 0, false}, | |
| 293 {"", 0, false}, | |
| 294 {"0x", 0, false}, | |
| 295 }; | |
| 296 | |
| 297 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 298 int64 output = 0; | |
| 299 EXPECT_EQ(cases[i].success, HexStringToInt64(cases[i].input, &output)); | |
| 300 EXPECT_EQ(cases[i].output, output); | |
| 301 } | |
| 302 // One additional test to verify that conversion of numbers in strings with | |
| 303 // embedded NUL characters. The NUL and extra data after it should be | |
| 304 // interpreted as junk after the number. | |
| 305 const char input[] = "0xc0ffee\09"; | |
| 306 std::string input_string(input, arraysize(input) - 1); | |
| 307 int64 output; | |
| 308 EXPECT_FALSE(HexStringToInt64(input_string, &output)); | |
| 309 EXPECT_EQ(0xc0ffee, output); | |
| 310 } | |
| 311 | |
| 312 TEST(StringNumberConversionsTest, HexStringToBytes) { | |
| 313 static const struct { | |
| 314 const std::string input; | |
| 315 const char* output; | |
| 316 size_t output_len; | |
| 317 bool success; | |
| 318 } cases[] = { | |
| 319 {"0", "", 0, false}, // odd number of characters fails | |
| 320 {"00", "\0", 1, true}, | |
| 321 {"42", "\x42", 1, true}, | |
| 322 {"-42", "", 0, false}, // any non-hex value fails | |
| 323 {"+42", "", 0, false}, | |
| 324 {"7fffffff", "\x7f\xff\xff\xff", 4, true}, | |
| 325 {"80000000", "\x80\0\0\0", 4, true}, | |
| 326 {"deadbeef", "\xde\xad\xbe\xef", 4, true}, | |
| 327 {"DeadBeef", "\xde\xad\xbe\xef", 4, true}, | |
| 328 {"0x42", "", 0, false}, // leading 0x fails (x is not hex) | |
| 329 {"0f", "\xf", 1, true}, | |
| 330 {"45 ", "\x45", 1, false}, | |
| 331 {"efgh", "\xef", 1, false}, | |
| 332 {"", "", 0, false}, | |
| 333 {"0123456789ABCDEF", "\x01\x23\x45\x67\x89\xAB\xCD\xEF", 8, true}, | |
| 334 {"0123456789ABCDEF012345", | |
| 335 "\x01\x23\x45\x67\x89\xAB\xCD\xEF\x01\x23\x45", 11, true}, | |
| 336 }; | |
| 337 | |
| 338 | |
| 339 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 340 std::vector<uint8> output; | |
| 341 std::vector<uint8> compare; | |
| 342 EXPECT_EQ(cases[i].success, HexStringToBytes(cases[i].input, &output)) << | |
| 343 i << ": " << cases[i].input; | |
| 344 for (size_t j = 0; j < cases[i].output_len; ++j) | |
| 345 compare.push_back(static_cast<uint8>(cases[i].output[j])); | |
| 346 ASSERT_EQ(output.size(), compare.size()) << i << ": " << cases[i].input; | |
| 347 EXPECT_TRUE(std::equal(output.begin(), output.end(), compare.begin())) << | |
| 348 i << ": " << cases[i].input; | |
| 349 } | |
| 350 } | |
| 351 | |
| 352 TEST(StringNumberConversionsTest, StringToDouble) { | |
| 353 static const struct { | |
| 354 std::string input; | |
| 355 double output; | |
| 356 bool success; | |
| 357 } cases[] = { | |
| 358 {"0", 0.0, true}, | |
| 359 {"42", 42.0, true}, | |
| 360 {"-42", -42.0, true}, | |
| 361 {"123.45", 123.45, true}, | |
| 362 {"-123.45", -123.45, true}, | |
| 363 {"+123.45", 123.45, true}, | |
| 364 {"2.99792458e8", 299792458.0, true}, | |
| 365 {"149597870.691E+3", 149597870691.0, true}, | |
| 366 {"6.", 6.0, true}, | |
| 367 {"9e99999999999999999999", HUGE_VAL, false}, | |
| 368 {"-9e99999999999999999999", -HUGE_VAL, false}, | |
| 369 {"1e-2", 0.01, true}, | |
| 370 {"42 ", 42.0, false}, | |
| 371 {" 1e-2", 0.01, false}, | |
| 372 {"1e-2 ", 0.01, false}, | |
| 373 {"-1E-7", -0.0000001, true}, | |
| 374 {"01e02", 100, true}, | |
| 375 {"2.3e15", 2.3e15, true}, | |
| 376 {"\t\n\v\f\r -123.45e2", -12345.0, false}, | |
| 377 {"+123 e4", 123.0, false}, | |
| 378 {"123e ", 123.0, false}, | |
| 379 {"123e", 123.0, false}, | |
| 380 {" 2.99", 2.99, false}, | |
| 381 {"1e3.4", 1000.0, false}, | |
| 382 {"nothing", 0.0, false}, | |
| 383 {"-", 0.0, false}, | |
| 384 {"+", 0.0, false}, | |
| 385 {"", 0.0, false}, | |
| 386 }; | |
| 387 | |
| 388 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 389 double output; | |
| 390 EXPECT_EQ(cases[i].success, StringToDouble(cases[i].input, &output)); | |
| 391 EXPECT_DOUBLE_EQ(cases[i].output, output); | |
| 392 } | |
| 393 | |
| 394 // One additional test to verify that conversion of numbers in strings with | |
| 395 // embedded NUL characters. The NUL and extra data after it should be | |
| 396 // interpreted as junk after the number. | |
| 397 const char input[] = "3.14\0159"; | |
| 398 std::string input_string(input, arraysize(input) - 1); | |
| 399 double output; | |
| 400 EXPECT_FALSE(StringToDouble(input_string, &output)); | |
| 401 EXPECT_DOUBLE_EQ(3.14, output); | |
| 402 } | |
| 403 | |
| 404 TEST(StringNumberConversionsTest, DoubleToString) { | |
| 405 static const struct { | |
| 406 double input; | |
| 407 const char* expected; | |
| 408 } cases[] = { | |
| 409 {0.0, "0"}, | |
| 410 {1.25, "1.25"}, | |
| 411 {1.33518e+012, "1.33518e+12"}, | |
| 412 {1.33489e+012, "1.33489e+12"}, | |
| 413 {1.33505e+012, "1.33505e+12"}, | |
| 414 {1.33545e+009, "1335450000"}, | |
| 415 {1.33503e+009, "1335030000"}, | |
| 416 }; | |
| 417 | |
| 418 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { | |
| 419 EXPECT_EQ(cases[i].expected, DoubleToString(cases[i].input)); | |
| 420 } | |
| 421 | |
| 422 // The following two values were seen in crashes in the wild. | |
| 423 const char input_bytes[8] = {0, 0, 0, 0, '\xee', '\x6d', '\x73', '\x42'}; | |
| 424 double input = 0; | |
| 425 memcpy(&input, input_bytes, arraysize(input_bytes)); | |
| 426 EXPECT_EQ("1335179083776", DoubleToString(input)); | |
| 427 const char input_bytes2[8] = | |
| 428 {0, 0, 0, '\xa0', '\xda', '\x6c', '\x73', '\x42'}; | |
| 429 input = 0; | |
| 430 memcpy(&input, input_bytes2, arraysize(input_bytes2)); | |
| 431 EXPECT_EQ("1334890332160", DoubleToString(input)); | |
| 432 } | |
| 433 | |
| 434 TEST(StringNumberConversionsTest, HexEncode) { | |
| 435 std::string hex(HexEncode(NULL, 0)); | |
| 436 EXPECT_EQ(hex.length(), 0U); | |
| 437 unsigned char bytes[] = {0x01, 0xff, 0x02, 0xfe, 0x03, 0x80, 0x81}; | |
| 438 hex = HexEncode(bytes, sizeof(bytes)); | |
| 439 EXPECT_EQ(hex.compare("01FF02FE038081"), 0); | |
| 440 } | |
| 441 | |
| 442 } // namespace base | |
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Chromium Code Reviews
Issue 12092078:
Move string_number_conversions to base/strings. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src