1 //===- llvm/unittest/ADT/StringRefTest.cpp - StringRef unit tests ---------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/ADT/StringRef.h" 11 #include "llvm/ADT/Hashing.h" 12 #include "llvm/ADT/STLExtras.h" 13 #include "llvm/ADT/SmallVector.h" 14 #include "llvm/ADT/StringExtras.h" 15 #include "llvm/Support/Allocator.h" 16 #include "llvm/Support/raw_ostream.h" 17 #include "gtest/gtest.h" 18 using namespace llvm; 19 20 namespace llvm { 21 22 std::ostream &operator<<(std::ostream &OS, const StringRef &S) { 23 OS << S.str(); 24 return OS; 25 } 26 27 std::ostream &operator<<(std::ostream &OS, 28 const std::pair<StringRef, StringRef> &P) { 29 OS << "(" << P.first << ", " << P.second << ")"; 30 return OS; 31 } 32 33 } 34 35 namespace { 36 TEST(StringRefTest, Construction) { 37 EXPECT_EQ("", StringRef()); 38 EXPECT_EQ("hello", StringRef("hello")); 39 EXPECT_EQ("hello", StringRef("hello world", 5)); 40 EXPECT_EQ("hello", StringRef(std::string("hello"))); 41 } 42 43 TEST(StringRefTest, Iteration) { 44 StringRef S("hello"); 45 const char *p = "hello"; 46 for (const char *it = S.begin(), *ie = S.end(); it != ie; ++it, ++p) 47 EXPECT_EQ(*it, *p); 48 } 49 50 TEST(StringRefTest, StringOps) { 51 const char *p = "hello"; 52 EXPECT_EQ(p, StringRef(p, 0).data()); 53 EXPECT_TRUE(StringRef().empty()); 54 EXPECT_EQ((size_t) 5, StringRef("hello").size()); 55 EXPECT_EQ(-1, StringRef("aab").compare("aad")); 56 EXPECT_EQ( 0, StringRef("aab").compare("aab")); 57 EXPECT_EQ( 1, StringRef("aab").compare("aaa")); 58 EXPECT_EQ(-1, StringRef("aab").compare("aabb")); 59 EXPECT_EQ( 1, StringRef("aab").compare("aa")); 60 EXPECT_EQ( 1, StringRef("\xFF").compare("\1")); 61 62 EXPECT_EQ(-1, StringRef("AaB").compare_lower("aAd")); 63 EXPECT_EQ( 0, StringRef("AaB").compare_lower("aab")); 64 EXPECT_EQ( 1, StringRef("AaB").compare_lower("AAA")); 65 EXPECT_EQ(-1, StringRef("AaB").compare_lower("aaBb")); 66 EXPECT_EQ(-1, StringRef("AaB").compare_lower("bb")); 67 EXPECT_EQ( 1, StringRef("aaBb").compare_lower("AaB")); 68 EXPECT_EQ( 1, StringRef("bb").compare_lower("AaB")); 69 EXPECT_EQ( 1, StringRef("AaB").compare_lower("aA")); 70 EXPECT_EQ( 1, StringRef("\xFF").compare_lower("\1")); 71 72 EXPECT_EQ(-1, StringRef("aab").compare_numeric("aad")); 73 EXPECT_EQ( 0, StringRef("aab").compare_numeric("aab")); 74 EXPECT_EQ( 1, StringRef("aab").compare_numeric("aaa")); 75 EXPECT_EQ(-1, StringRef("aab").compare_numeric("aabb")); 76 EXPECT_EQ( 1, StringRef("aab").compare_numeric("aa")); 77 EXPECT_EQ(-1, StringRef("1").compare_numeric("10")); 78 EXPECT_EQ( 0, StringRef("10").compare_numeric("10")); 79 EXPECT_EQ( 0, StringRef("10a").compare_numeric("10a")); 80 EXPECT_EQ( 1, StringRef("2").compare_numeric("1")); 81 EXPECT_EQ( 0, StringRef("llvm_v1i64_ty").compare_numeric("llvm_v1i64_ty")); 82 EXPECT_EQ( 1, StringRef("\xFF").compare_numeric("\1")); 83 EXPECT_EQ( 1, StringRef("V16").compare_numeric("V1_q0")); 84 EXPECT_EQ(-1, StringRef("V1_q0").compare_numeric("V16")); 85 EXPECT_EQ(-1, StringRef("V8_q0").compare_numeric("V16")); 86 EXPECT_EQ( 1, StringRef("V16").compare_numeric("V8_q0")); 87 EXPECT_EQ(-1, StringRef("V1_q0").compare_numeric("V8_q0")); 88 EXPECT_EQ( 1, StringRef("V8_q0").compare_numeric("V1_q0")); 89 } 90 91 TEST(StringRefTest, Operators) { 92 EXPECT_EQ("", StringRef()); 93 EXPECT_TRUE(StringRef("aab") < StringRef("aad")); 94 EXPECT_FALSE(StringRef("aab") < StringRef("aab")); 95 EXPECT_TRUE(StringRef("aab") <= StringRef("aab")); 96 EXPECT_FALSE(StringRef("aab") <= StringRef("aaa")); 97 EXPECT_TRUE(StringRef("aad") > StringRef("aab")); 98 EXPECT_FALSE(StringRef("aab") > StringRef("aab")); 99 EXPECT_TRUE(StringRef("aab") >= StringRef("aab")); 100 EXPECT_FALSE(StringRef("aaa") >= StringRef("aab")); 101 EXPECT_EQ(StringRef("aab"), StringRef("aab")); 102 EXPECT_FALSE(StringRef("aab") == StringRef("aac")); 103 EXPECT_FALSE(StringRef("aab") != StringRef("aab")); 104 EXPECT_TRUE(StringRef("aab") != StringRef("aac")); 105 EXPECT_EQ('a', StringRef("aab")[1]); 106 } 107 108 TEST(StringRefTest, Substr) { 109 StringRef Str("hello"); 110 EXPECT_EQ("lo", Str.substr(3)); 111 EXPECT_EQ("", Str.substr(100)); 112 EXPECT_EQ("hello", Str.substr(0, 100)); 113 EXPECT_EQ("o", Str.substr(4, 10)); 114 } 115 116 TEST(StringRefTest, Slice) { 117 StringRef Str("hello"); 118 EXPECT_EQ("l", Str.slice(2, 3)); 119 EXPECT_EQ("ell", Str.slice(1, 4)); 120 EXPECT_EQ("llo", Str.slice(2, 100)); 121 EXPECT_EQ("", Str.slice(2, 1)); 122 EXPECT_EQ("", Str.slice(10, 20)); 123 } 124 125 TEST(StringRefTest, Split) { 126 StringRef Str("hello"); 127 EXPECT_EQ(std::make_pair(StringRef("hello"), StringRef("")), 128 Str.split('X')); 129 EXPECT_EQ(std::make_pair(StringRef("h"), StringRef("llo")), 130 Str.split('e')); 131 EXPECT_EQ(std::make_pair(StringRef(""), StringRef("ello")), 132 Str.split('h')); 133 EXPECT_EQ(std::make_pair(StringRef("he"), StringRef("lo")), 134 Str.split('l')); 135 EXPECT_EQ(std::make_pair(StringRef("hell"), StringRef("")), 136 Str.split('o')); 137 138 EXPECT_EQ(std::make_pair(StringRef("hello"), StringRef("")), 139 Str.rsplit('X')); 140 EXPECT_EQ(std::make_pair(StringRef("h"), StringRef("llo")), 141 Str.rsplit('e')); 142 EXPECT_EQ(std::make_pair(StringRef(""), StringRef("ello")), 143 Str.rsplit('h')); 144 EXPECT_EQ(std::make_pair(StringRef("hel"), StringRef("o")), 145 Str.rsplit('l')); 146 EXPECT_EQ(std::make_pair(StringRef("hell"), StringRef("")), 147 Str.rsplit('o')); 148 } 149 150 TEST(StringRefTest, Split2) { 151 SmallVector<StringRef, 5> parts; 152 SmallVector<StringRef, 5> expected; 153 154 expected.push_back("ab"); expected.push_back("c"); 155 StringRef(",ab,,c,").split(parts, ",", -1, false); 156 EXPECT_TRUE(parts == expected); 157 158 expected.clear(); parts.clear(); 159 expected.push_back(""); expected.push_back("ab"); expected.push_back(""); 160 expected.push_back("c"); expected.push_back(""); 161 StringRef(",ab,,c,").split(parts, ",", -1, true); 162 EXPECT_TRUE(parts == expected); 163 164 expected.clear(); parts.clear(); 165 expected.push_back(""); 166 StringRef("").split(parts, ",", -1, true); 167 EXPECT_TRUE(parts == expected); 168 169 expected.clear(); parts.clear(); 170 StringRef("").split(parts, ",", -1, false); 171 EXPECT_TRUE(parts == expected); 172 173 expected.clear(); parts.clear(); 174 StringRef(",").split(parts, ",", -1, false); 175 EXPECT_TRUE(parts == expected); 176 177 expected.clear(); parts.clear(); 178 expected.push_back(""); expected.push_back(""); 179 StringRef(",").split(parts, ",", -1, true); 180 EXPECT_TRUE(parts == expected); 181 182 expected.clear(); parts.clear(); 183 expected.push_back("a"); expected.push_back("b"); 184 StringRef("a,b").split(parts, ",", -1, true); 185 EXPECT_TRUE(parts == expected); 186 187 // Test MaxSplit 188 expected.clear(); parts.clear(); 189 expected.push_back("a,,b,c"); 190 StringRef("a,,b,c").split(parts, ",", 0, true); 191 EXPECT_TRUE(parts == expected); 192 193 expected.clear(); parts.clear(); 194 expected.push_back("a,,b,c"); 195 StringRef("a,,b,c").split(parts, ",", 0, false); 196 EXPECT_TRUE(parts == expected); 197 198 expected.clear(); parts.clear(); 199 expected.push_back("a"); expected.push_back(",b,c"); 200 StringRef("a,,b,c").split(parts, ",", 1, true); 201 EXPECT_TRUE(parts == expected); 202 203 expected.clear(); parts.clear(); 204 expected.push_back("a"); expected.push_back(",b,c"); 205 StringRef("a,,b,c").split(parts, ",", 1, false); 206 EXPECT_TRUE(parts == expected); 207 208 expected.clear(); parts.clear(); 209 expected.push_back("a"); expected.push_back(""); expected.push_back("b,c"); 210 StringRef("a,,b,c").split(parts, ",", 2, true); 211 EXPECT_TRUE(parts == expected); 212 213 expected.clear(); parts.clear(); 214 expected.push_back("a"); expected.push_back("b,c"); 215 StringRef("a,,b,c").split(parts, ",", 2, false); 216 EXPECT_TRUE(parts == expected); 217 218 expected.clear(); parts.clear(); 219 expected.push_back("a"); expected.push_back(""); expected.push_back("b"); 220 expected.push_back("c"); 221 StringRef("a,,b,c").split(parts, ",", 3, true); 222 EXPECT_TRUE(parts == expected); 223 224 expected.clear(); parts.clear(); 225 expected.push_back("a"); expected.push_back("b"); expected.push_back("c"); 226 StringRef("a,,b,c").split(parts, ",", 3, false); 227 EXPECT_TRUE(parts == expected); 228 229 expected.clear(); parts.clear(); 230 expected.push_back("a"); expected.push_back("b"); expected.push_back("c"); 231 StringRef("a,,b,c").split(parts, ',', 3, false); 232 EXPECT_TRUE(parts == expected); 233 234 expected.clear(); parts.clear(); 235 expected.push_back(""); 236 StringRef().split(parts, ",", 0, true); 237 EXPECT_TRUE(parts == expected); 238 239 expected.clear(); parts.clear(); 240 expected.push_back(StringRef()); 241 StringRef("").split(parts, ",", 0, true); 242 EXPECT_TRUE(parts == expected); 243 244 expected.clear(); parts.clear(); 245 StringRef("").split(parts, ",", 0, false); 246 EXPECT_TRUE(parts == expected); 247 StringRef().split(parts, ",", 0, false); 248 EXPECT_TRUE(parts == expected); 249 250 expected.clear(); parts.clear(); 251 expected.push_back("a"); 252 expected.push_back(""); 253 expected.push_back("b"); 254 expected.push_back("c,d"); 255 StringRef("a,,b,c,d").split(parts, ",", 3, true); 256 EXPECT_TRUE(parts == expected); 257 258 expected.clear(); parts.clear(); 259 expected.push_back(""); 260 StringRef().split(parts, ',', 0, true); 261 EXPECT_TRUE(parts == expected); 262 263 expected.clear(); parts.clear(); 264 expected.push_back(StringRef()); 265 StringRef("").split(parts, ',', 0, true); 266 EXPECT_TRUE(parts == expected); 267 268 expected.clear(); parts.clear(); 269 StringRef("").split(parts, ',', 0, false); 270 EXPECT_TRUE(parts == expected); 271 StringRef().split(parts, ',', 0, false); 272 EXPECT_TRUE(parts == expected); 273 274 expected.clear(); parts.clear(); 275 expected.push_back("a"); 276 expected.push_back(""); 277 expected.push_back("b"); 278 expected.push_back("c,d"); 279 StringRef("a,,b,c,d").split(parts, ',', 3, true); 280 EXPECT_TRUE(parts == expected); 281 } 282 283 TEST(StringRefTest, Trim) { 284 StringRef Str0("hello"); 285 StringRef Str1(" hello "); 286 StringRef Str2(" hello "); 287 288 EXPECT_EQ(StringRef("hello"), Str0.rtrim()); 289 EXPECT_EQ(StringRef(" hello"), Str1.rtrim()); 290 EXPECT_EQ(StringRef(" hello"), Str2.rtrim()); 291 EXPECT_EQ(StringRef("hello"), Str0.ltrim()); 292 EXPECT_EQ(StringRef("hello "), Str1.ltrim()); 293 EXPECT_EQ(StringRef("hello "), Str2.ltrim()); 294 EXPECT_EQ(StringRef("hello"), Str0.trim()); 295 EXPECT_EQ(StringRef("hello"), Str1.trim()); 296 EXPECT_EQ(StringRef("hello"), Str2.trim()); 297 298 EXPECT_EQ(StringRef("ello"), Str0.trim("hhhhhhhhhhh")); 299 300 EXPECT_EQ(StringRef(""), StringRef("").trim()); 301 EXPECT_EQ(StringRef(""), StringRef(" ").trim()); 302 EXPECT_EQ(StringRef("\0", 1), StringRef(" \0 ", 3).trim()); 303 EXPECT_EQ(StringRef("\0\0", 2), StringRef("\0\0", 2).trim()); 304 EXPECT_EQ(StringRef("x"), StringRef("\0\0x\0\0", 5).trim('\0')); 305 } 306 307 TEST(StringRefTest, StartsWith) { 308 StringRef Str("hello"); 309 EXPECT_TRUE(Str.startswith("")); 310 EXPECT_TRUE(Str.startswith("he")); 311 EXPECT_FALSE(Str.startswith("helloworld")); 312 EXPECT_FALSE(Str.startswith("hi")); 313 } 314 315 TEST(StringRefTest, StartsWithLower) { 316 StringRef Str("heLLo"); 317 EXPECT_TRUE(Str.startswith_lower("")); 318 EXPECT_TRUE(Str.startswith_lower("he")); 319 EXPECT_TRUE(Str.startswith_lower("hell")); 320 EXPECT_TRUE(Str.startswith_lower("HELlo")); 321 EXPECT_FALSE(Str.startswith_lower("helloworld")); 322 EXPECT_FALSE(Str.startswith_lower("hi")); 323 } 324 325 TEST(StringRefTest, EndsWith) { 326 StringRef Str("hello"); 327 EXPECT_TRUE(Str.endswith("")); 328 EXPECT_TRUE(Str.endswith("lo")); 329 EXPECT_FALSE(Str.endswith("helloworld")); 330 EXPECT_FALSE(Str.endswith("worldhello")); 331 EXPECT_FALSE(Str.endswith("so")); 332 } 333 334 TEST(StringRefTest, EndsWithLower) { 335 StringRef Str("heLLo"); 336 EXPECT_TRUE(Str.endswith_lower("")); 337 EXPECT_TRUE(Str.endswith_lower("lo")); 338 EXPECT_TRUE(Str.endswith_lower("LO")); 339 EXPECT_TRUE(Str.endswith_lower("ELlo")); 340 EXPECT_FALSE(Str.endswith_lower("helloworld")); 341 EXPECT_FALSE(Str.endswith_lower("hi")); 342 } 343 344 TEST(StringRefTest, Find) { 345 StringRef Str("hello"); 346 EXPECT_EQ(2U, Str.find('l')); 347 EXPECT_EQ(StringRef::npos, Str.find('z')); 348 EXPECT_EQ(StringRef::npos, Str.find("helloworld")); 349 EXPECT_EQ(0U, Str.find("hello")); 350 EXPECT_EQ(1U, Str.find("ello")); 351 EXPECT_EQ(StringRef::npos, Str.find("zz")); 352 EXPECT_EQ(2U, Str.find("ll", 2)); 353 EXPECT_EQ(StringRef::npos, Str.find("ll", 3)); 354 EXPECT_EQ(0U, Str.find("")); 355 StringRef LongStr("hellx xello hell ello world foo bar hello"); 356 EXPECT_EQ(36U, LongStr.find("hello")); 357 EXPECT_EQ(28U, LongStr.find("foo")); 358 EXPECT_EQ(12U, LongStr.find("hell", 2)); 359 EXPECT_EQ(0U, LongStr.find("")); 360 361 EXPECT_EQ(3U, Str.rfind('l')); 362 EXPECT_EQ(StringRef::npos, Str.rfind('z')); 363 EXPECT_EQ(StringRef::npos, Str.rfind("helloworld")); 364 EXPECT_EQ(0U, Str.rfind("hello")); 365 EXPECT_EQ(1U, Str.rfind("ello")); 366 EXPECT_EQ(StringRef::npos, Str.rfind("zz")); 367 368 EXPECT_EQ(2U, Str.find_first_of('l')); 369 EXPECT_EQ(1U, Str.find_first_of("el")); 370 EXPECT_EQ(StringRef::npos, Str.find_first_of("xyz")); 371 372 EXPECT_EQ(1U, Str.find_first_not_of('h')); 373 EXPECT_EQ(4U, Str.find_first_not_of("hel")); 374 EXPECT_EQ(StringRef::npos, Str.find_first_not_of("hello")); 375 376 EXPECT_EQ(3U, Str.find_last_not_of('o')); 377 EXPECT_EQ(1U, Str.find_last_not_of("lo")); 378 EXPECT_EQ(StringRef::npos, Str.find_last_not_of("helo")); 379 } 380 381 TEST(StringRefTest, Count) { 382 StringRef Str("hello"); 383 EXPECT_EQ(2U, Str.count('l')); 384 EXPECT_EQ(1U, Str.count('o')); 385 EXPECT_EQ(0U, Str.count('z')); 386 EXPECT_EQ(0U, Str.count("helloworld")); 387 EXPECT_EQ(1U, Str.count("hello")); 388 EXPECT_EQ(1U, Str.count("ello")); 389 EXPECT_EQ(0U, Str.count("zz")); 390 } 391 392 TEST(StringRefTest, EditDistance) { 393 StringRef Str("hello"); 394 EXPECT_EQ(2U, Str.edit_distance("hill")); 395 } 396 397 TEST(StringRefTest, Misc) { 398 std::string Storage; 399 raw_string_ostream OS(Storage); 400 OS << StringRef("hello"); 401 EXPECT_EQ("hello", OS.str()); 402 } 403 404 TEST(StringRefTest, Hashing) { 405 EXPECT_EQ(hash_value(std::string()), hash_value(StringRef())); 406 EXPECT_EQ(hash_value(std::string()), hash_value(StringRef(""))); 407 std::string S = "hello world"; 408 hash_code H = hash_value(S); 409 EXPECT_EQ(H, hash_value(StringRef("hello world"))); 410 EXPECT_EQ(H, hash_value(StringRef(S))); 411 EXPECT_NE(H, hash_value(StringRef("hello worl"))); 412 EXPECT_EQ(hash_value(std::string("hello worl")), 413 hash_value(StringRef("hello worl"))); 414 EXPECT_NE(H, hash_value(StringRef("hello world "))); 415 EXPECT_EQ(hash_value(std::string("hello world ")), 416 hash_value(StringRef("hello world "))); 417 EXPECT_EQ(H, hash_value(StringRef("hello world\0"))); 418 EXPECT_NE(hash_value(std::string("ello worl")), 419 hash_value(StringRef("hello world").slice(1, -1))); 420 } 421 422 struct UnsignedPair { 423 const char *Str; 424 uint64_t Expected; 425 } Unsigned[] = 426 { {"0", 0} 427 , {"255", 255} 428 , {"256", 256} 429 , {"65535", 65535} 430 , {"65536", 65536} 431 , {"4294967295", 4294967295ULL} 432 , {"4294967296", 4294967296ULL} 433 , {"18446744073709551615", 18446744073709551615ULL} 434 , {"042", 34} 435 , {"0x42", 66} 436 , {"0b101010", 42} 437 }; 438 439 struct SignedPair { 440 const char *Str; 441 int64_t Expected; 442 } Signed[] = 443 { {"0", 0} 444 , {"-0", 0} 445 , {"127", 127} 446 , {"128", 128} 447 , {"-128", -128} 448 , {"-129", -129} 449 , {"32767", 32767} 450 , {"32768", 32768} 451 , {"-32768", -32768} 452 , {"-32769", -32769} 453 , {"2147483647", 2147483647LL} 454 , {"2147483648", 2147483648LL} 455 , {"-2147483648", -2147483648LL} 456 , {"-2147483649", -2147483649LL} 457 , {"-9223372036854775808", -(9223372036854775807LL) - 1} 458 , {"042", 34} 459 , {"0x42", 66} 460 , {"0b101010", 42} 461 , {"-042", -34} 462 , {"-0x42", -66} 463 , {"-0b101010", -42} 464 }; 465 466 TEST(StringRefTest, getAsInteger) { 467 uint8_t U8; 468 uint16_t U16; 469 uint32_t U32; 470 uint64_t U64; 471 472 for (size_t i = 0; i < array_lengthof(Unsigned); ++i) { 473 bool U8Success = StringRef(Unsigned[i].Str).getAsInteger(0, U8); 474 if (static_cast<uint8_t>(Unsigned[i].Expected) == Unsigned[i].Expected) { 475 ASSERT_FALSE(U8Success); 476 EXPECT_EQ(U8, Unsigned[i].Expected); 477 } else { 478 ASSERT_TRUE(U8Success); 479 } 480 bool U16Success = StringRef(Unsigned[i].Str).getAsInteger(0, U16); 481 if (static_cast<uint16_t>(Unsigned[i].Expected) == Unsigned[i].Expected) { 482 ASSERT_FALSE(U16Success); 483 EXPECT_EQ(U16, Unsigned[i].Expected); 484 } else { 485 ASSERT_TRUE(U16Success); 486 } 487 bool U32Success = StringRef(Unsigned[i].Str).getAsInteger(0, U32); 488 if (static_cast<uint32_t>(Unsigned[i].Expected) == Unsigned[i].Expected) { 489 ASSERT_FALSE(U32Success); 490 EXPECT_EQ(U32, Unsigned[i].Expected); 491 } else { 492 ASSERT_TRUE(U32Success); 493 } 494 bool U64Success = StringRef(Unsigned[i].Str).getAsInteger(0, U64); 495 if (static_cast<uint64_t>(Unsigned[i].Expected) == Unsigned[i].Expected) { 496 ASSERT_FALSE(U64Success); 497 EXPECT_EQ(U64, Unsigned[i].Expected); 498 } else { 499 ASSERT_TRUE(U64Success); 500 } 501 } 502 503 int8_t S8; 504 int16_t S16; 505 int32_t S32; 506 int64_t S64; 507 508 for (size_t i = 0; i < array_lengthof(Signed); ++i) { 509 bool S8Success = StringRef(Signed[i].Str).getAsInteger(0, S8); 510 if (static_cast<int8_t>(Signed[i].Expected) == Signed[i].Expected) { 511 ASSERT_FALSE(S8Success); 512 EXPECT_EQ(S8, Signed[i].Expected); 513 } else { 514 ASSERT_TRUE(S8Success); 515 } 516 bool S16Success = StringRef(Signed[i].Str).getAsInteger(0, S16); 517 if (static_cast<int16_t>(Signed[i].Expected) == Signed[i].Expected) { 518 ASSERT_FALSE(S16Success); 519 EXPECT_EQ(S16, Signed[i].Expected); 520 } else { 521 ASSERT_TRUE(S16Success); 522 } 523 bool S32Success = StringRef(Signed[i].Str).getAsInteger(0, S32); 524 if (static_cast<int32_t>(Signed[i].Expected) == Signed[i].Expected) { 525 ASSERT_FALSE(S32Success); 526 EXPECT_EQ(S32, Signed[i].Expected); 527 } else { 528 ASSERT_TRUE(S32Success); 529 } 530 bool S64Success = StringRef(Signed[i].Str).getAsInteger(0, S64); 531 if (static_cast<int64_t>(Signed[i].Expected) == Signed[i].Expected) { 532 ASSERT_FALSE(S64Success); 533 EXPECT_EQ(S64, Signed[i].Expected); 534 } else { 535 ASSERT_TRUE(S64Success); 536 } 537 } 538 } 539 540 541 static const char* BadStrings[] = { 542 "18446744073709551617" // value just over max 543 , "123456789012345678901" // value way too large 544 , "4t23v" // illegal decimal characters 545 , "0x123W56" // illegal hex characters 546 , "0b2" // illegal bin characters 547 , "08" // illegal oct characters 548 , "0o8" // illegal oct characters 549 , "-123" // negative unsigned value 550 }; 551 552 553 TEST(StringRefTest, getAsUnsignedIntegerBadStrings) { 554 unsigned long long U64; 555 for (size_t i = 0; i < array_lengthof(BadStrings); ++i) { 556 bool IsBadNumber = StringRef(BadStrings[i]).getAsInteger(0, U64); 557 ASSERT_TRUE(IsBadNumber); 558 } 559 } 560 561 static const char *join_input[] = { "a", "b", "c" }; 562 static const char join_result1[] = "a"; 563 static const char join_result2[] = "a:b:c"; 564 static const char join_result3[] = "a::b::c"; 565 566 TEST(StringRefTest, joinStrings) { 567 std::vector<StringRef> v1; 568 std::vector<std::string> v2; 569 for (size_t i = 0; i < array_lengthof(join_input); ++i) { 570 v1.push_back(join_input[i]); 571 v2.push_back(join_input[i]); 572 } 573 574 bool v1_join1 = join(v1.begin(), v1.begin() + 1, ":") == join_result1; 575 EXPECT_TRUE(v1_join1); 576 bool v1_join2 = join(v1.begin(), v1.end(), ":") == join_result2; 577 EXPECT_TRUE(v1_join2); 578 bool v1_join3 = join(v1.begin(), v1.end(), "::") == join_result3; 579 EXPECT_TRUE(v1_join3); 580 581 bool v2_join1 = join(v2.begin(), v2.begin() + 1, ":") == join_result1; 582 EXPECT_TRUE(v2_join1); 583 bool v2_join2 = join(v2.begin(), v2.end(), ":") == join_result2; 584 EXPECT_TRUE(v2_join2); 585 bool v2_join3 = join(v2.begin(), v2.end(), "::") == join_result3; 586 EXPECT_TRUE(v2_join3); 587 } 588 589 590 TEST(StringRefTest, AllocatorCopy) { 591 BumpPtrAllocator Alloc; 592 // First test empty strings. We don't want these to allocate anything on the 593 // allocator. 594 StringRef StrEmpty = ""; 595 StringRef StrEmptyc = StrEmpty.copy(Alloc); 596 EXPECT_TRUE(StrEmpty.equals(StrEmptyc)); 597 EXPECT_EQ(StrEmptyc.data(), nullptr); 598 EXPECT_EQ(StrEmptyc.size(), 0u); 599 EXPECT_EQ(Alloc.getTotalMemory(), 0u); 600 601 StringRef Str1 = "hello"; 602 StringRef Str2 = "bye"; 603 StringRef Str1c = Str1.copy(Alloc); 604 StringRef Str2c = Str2.copy(Alloc); 605 EXPECT_TRUE(Str1.equals(Str1c)); 606 EXPECT_NE(Str1.data(), Str1c.data()); 607 EXPECT_TRUE(Str2.equals(Str2c)); 608 EXPECT_NE(Str2.data(), Str2c.data()); 609 } 610 611 612 } // end anonymous namespace 613
