1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 19 #include "BionicDeathTest.h" 20 #include "math_data_test.h" 21 #include "TemporaryFile.h" 22 #include "utils.h" 23 24 #include <errno.h> 25 #include <fcntl.h> 26 #include <libgen.h> 27 #include <limits.h> 28 #include <math.h> 29 #include <pthread.h> 30 #include <stdint.h> 31 #include <stdlib.h> 32 #include <sys/types.h> 33 #include <sys/wait.h> 34 35 // The random number generator tests all set the seed, get four values, reset the seed and check 36 // that they get the first two values repeated, and then reset the seed and check two more values 37 // to rule out the possibility that we're just going round a cycle of four values. 38 // TODO: factor this out. 39 TEST(stdlib,drand48)40 TEST(stdlib, drand48) { 41 srand48(0x01020304); 42 EXPECT_DOUBLE_EQ(0.65619299195623526, drand48()); 43 EXPECT_DOUBLE_EQ(0.18522597229772941, drand48()); 44 EXPECT_DOUBLE_EQ(0.42015087072844537, drand48()); 45 EXPECT_DOUBLE_EQ(0.061637783047395089, drand48()); 46 srand48(0x01020304); 47 EXPECT_DOUBLE_EQ(0.65619299195623526, drand48()); 48 EXPECT_DOUBLE_EQ(0.18522597229772941, drand48()); 49 srand48(0x01020304); 50 EXPECT_DOUBLE_EQ(0.65619299195623526, drand48()); 51 EXPECT_DOUBLE_EQ(0.18522597229772941, drand48()); 52 } 53 TEST(stdlib,erand48)54 TEST(stdlib, erand48) { 55 const unsigned short seed[3] = { 0x330e, 0xabcd, 0x1234 }; 56 unsigned short xsubi[3]; 57 memcpy(xsubi, seed, sizeof(seed)); 58 EXPECT_DOUBLE_EQ(0.39646477376027534, erand48(xsubi)); 59 EXPECT_DOUBLE_EQ(0.84048536941142515, erand48(xsubi)); 60 EXPECT_DOUBLE_EQ(0.35333609724524351, erand48(xsubi)); 61 EXPECT_DOUBLE_EQ(0.44658343479654405, erand48(xsubi)); 62 memcpy(xsubi, seed, sizeof(seed)); 63 EXPECT_DOUBLE_EQ(0.39646477376027534, erand48(xsubi)); 64 EXPECT_DOUBLE_EQ(0.84048536941142515, erand48(xsubi)); 65 memcpy(xsubi, seed, sizeof(seed)); 66 EXPECT_DOUBLE_EQ(0.39646477376027534, erand48(xsubi)); 67 EXPECT_DOUBLE_EQ(0.84048536941142515, erand48(xsubi)); 68 } 69 TEST(stdlib,lcong48)70 TEST(stdlib, lcong48) { 71 unsigned short p[7] = { 0x0102, 0x0304, 0x0506, 0x0708, 0x090a, 0x0b0c, 0x0d0e }; 72 lcong48(p); 73 EXPECT_EQ(1531389981, lrand48()); 74 EXPECT_EQ(1598801533, lrand48()); 75 EXPECT_EQ(2080534853, lrand48()); 76 EXPECT_EQ(1102488897, lrand48()); 77 lcong48(p); 78 EXPECT_EQ(1531389981, lrand48()); 79 EXPECT_EQ(1598801533, lrand48()); 80 lcong48(p); 81 EXPECT_EQ(1531389981, lrand48()); 82 EXPECT_EQ(1598801533, lrand48()); 83 } 84 TEST(stdlib,lrand48)85 TEST(stdlib, lrand48) { 86 srand48(0x01020304); 87 EXPECT_EQ(1409163720, lrand48()); 88 EXPECT_EQ(397769746, lrand48()); 89 EXPECT_EQ(902267124, lrand48()); 90 EXPECT_EQ(132366131, lrand48()); 91 srand48(0x01020304); 92 EXPECT_EQ(1409163720, lrand48()); 93 EXPECT_EQ(397769746, lrand48()); 94 srand48(0x01020304); 95 EXPECT_EQ(1409163720, lrand48()); 96 EXPECT_EQ(397769746, lrand48()); 97 } 98 TEST(stdlib,random)99 TEST(stdlib, random) { 100 srandom(0x01020304); 101 EXPECT_EQ(55436735, random()); 102 EXPECT_EQ(1399865117, random()); 103 EXPECT_EQ(2032643283, random()); 104 EXPECT_EQ(571329216, random()); 105 srandom(0x01020304); 106 EXPECT_EQ(55436735, random()); 107 EXPECT_EQ(1399865117, random()); 108 srandom(0x01020304); 109 EXPECT_EQ(55436735, random()); 110 EXPECT_EQ(1399865117, random()); 111 } 112 TEST(stdlib,rand)113 TEST(stdlib, rand) { 114 srand(0x01020304); 115 EXPECT_EQ(55436735, rand()); 116 EXPECT_EQ(1399865117, rand()); 117 EXPECT_EQ(2032643283, rand()); 118 EXPECT_EQ(571329216, rand()); 119 srand(0x01020304); 120 EXPECT_EQ(55436735, rand()); 121 EXPECT_EQ(1399865117, rand()); 122 srand(0x01020304); 123 EXPECT_EQ(55436735, rand()); 124 EXPECT_EQ(1399865117, rand()); 125 } 126 TEST(stdlib,mrand48)127 TEST(stdlib, mrand48) { 128 srand48(0x01020304); 129 EXPECT_EQ(-1476639856, mrand48()); 130 EXPECT_EQ(795539493, mrand48()); 131 EXPECT_EQ(1804534249, mrand48()); 132 EXPECT_EQ(264732262, mrand48()); 133 srand48(0x01020304); 134 EXPECT_EQ(-1476639856, mrand48()); 135 EXPECT_EQ(795539493, mrand48()); 136 srand48(0x01020304); 137 EXPECT_EQ(-1476639856, mrand48()); 138 EXPECT_EQ(795539493, mrand48()); 139 } 140 TEST(stdlib,posix_memalign_sweep)141 TEST(stdlib, posix_memalign_sweep) { 142 void* ptr; 143 144 // These should all fail. 145 for (size_t align = 0; align < sizeof(long); align++) { 146 ASSERT_EQ(EINVAL, posix_memalign(&ptr, align, 256)) 147 << "Unexpected value at align " << align; 148 } 149 150 // Verify powers of 2 up to 2048 allocate, and verify that all other 151 // alignment values between the powers of 2 fail. 152 size_t last_align = sizeof(long); 153 for (size_t align = sizeof(long); align <= 2048; align <<= 1) { 154 // Try all of the non power of 2 values from the last until this value. 155 for (size_t fail_align = last_align + 1; fail_align < align; fail_align++) { 156 ASSERT_EQ(EINVAL, posix_memalign(&ptr, fail_align, 256)) 157 << "Unexpected success at align " << fail_align; 158 } 159 ASSERT_EQ(0, posix_memalign(&ptr, align, 256)) 160 << "Unexpected failure at align " << align; 161 ASSERT_EQ(0U, reinterpret_cast<uintptr_t>(ptr) & (align - 1)) 162 << "Did not return a valid aligned ptr " << ptr << " expected alignment " << align; 163 free(ptr); 164 last_align = align; 165 } 166 } 167 TEST(stdlib,posix_memalign_various_sizes)168 TEST(stdlib, posix_memalign_various_sizes) { 169 std::vector<size_t> sizes{1, 4, 8, 256, 1024, 65000, 128000, 256000, 1000000}; 170 for (auto size : sizes) { 171 void* ptr; 172 ASSERT_EQ(0, posix_memalign(&ptr, 16, 1)) 173 << "posix_memalign failed at size " << size; 174 ASSERT_EQ(0U, reinterpret_cast<uintptr_t>(ptr) & 0xf) 175 << "Pointer not aligned at size " << size << " ptr " << ptr; 176 free(ptr); 177 } 178 } 179 TEST(stdlib,posix_memalign_overflow)180 TEST(stdlib, posix_memalign_overflow) { 181 void* ptr; 182 ASSERT_NE(0, posix_memalign(&ptr, 16, SIZE_MAX)); 183 } 184 TEST(stdlib,realpath__NULL_filename)185 TEST(stdlib, realpath__NULL_filename) { 186 errno = 0; 187 char* p = realpath(NULL, NULL); 188 ASSERT_TRUE(p == NULL); 189 ASSERT_EQ(EINVAL, errno); 190 } 191 TEST(stdlib,realpath__empty_filename)192 TEST(stdlib, realpath__empty_filename) { 193 errno = 0; 194 char* p = realpath("", NULL); 195 ASSERT_TRUE(p == NULL); 196 ASSERT_EQ(ENOENT, errno); 197 } 198 TEST(stdlib,realpath__ENOENT)199 TEST(stdlib, realpath__ENOENT) { 200 errno = 0; 201 char* p = realpath("/this/directory/path/almost/certainly/does/not/exist", NULL); 202 ASSERT_TRUE(p == NULL); 203 ASSERT_EQ(ENOENT, errno); 204 } 205 TEST(stdlib,realpath__component_after_non_directory)206 TEST(stdlib, realpath__component_after_non_directory) { 207 errno = 0; 208 char* p = realpath("/dev/null/.", NULL); 209 ASSERT_TRUE(p == NULL); 210 ASSERT_EQ(ENOTDIR, errno); 211 212 errno = 0; 213 p = realpath("/dev/null/..", NULL); 214 ASSERT_TRUE(p == NULL); 215 ASSERT_EQ(ENOTDIR, errno); 216 } 217 TEST(stdlib,realpath)218 TEST(stdlib, realpath) { 219 // Get the name of this executable. 220 char executable_path[PATH_MAX]; 221 int rc = readlink("/proc/self/exe", executable_path, sizeof(executable_path)); 222 ASSERT_NE(rc, -1); 223 executable_path[rc] = '\0'; 224 225 char buf[PATH_MAX + 1]; 226 char* p = realpath("/proc/self/exe", buf); 227 ASSERT_STREQ(executable_path, p); 228 229 p = realpath("/proc/self/exe", NULL); 230 ASSERT_STREQ(executable_path, p); 231 free(p); 232 } 233 TEST(stdlib,qsort)234 TEST(stdlib, qsort) { 235 struct s { 236 char name[16]; 237 static int comparator(const void* lhs, const void* rhs) { 238 return strcmp(reinterpret_cast<const s*>(lhs)->name, reinterpret_cast<const s*>(rhs)->name); 239 } 240 }; 241 s entries[3]; 242 strcpy(entries[0].name, "charlie"); 243 strcpy(entries[1].name, "bravo"); 244 strcpy(entries[2].name, "alpha"); 245 246 qsort(entries, 3, sizeof(s), s::comparator); 247 ASSERT_STREQ("alpha", entries[0].name); 248 ASSERT_STREQ("bravo", entries[1].name); 249 ASSERT_STREQ("charlie", entries[2].name); 250 251 qsort(entries, 3, sizeof(s), s::comparator); 252 ASSERT_STREQ("alpha", entries[0].name); 253 ASSERT_STREQ("bravo", entries[1].name); 254 ASSERT_STREQ("charlie", entries[2].name); 255 } 256 TestBug57421_child(void * arg)257 static void* TestBug57421_child(void* arg) { 258 pthread_t main_thread = reinterpret_cast<pthread_t>(arg); 259 pthread_join(main_thread, NULL); 260 char* value = getenv("ENVIRONMENT_VARIABLE"); 261 if (value == NULL) { 262 setenv("ENVIRONMENT_VARIABLE", "value", 1); 263 } 264 return NULL; 265 } 266 TestBug57421_main()267 static void TestBug57421_main() { 268 pthread_t t; 269 ASSERT_EQ(0, pthread_create(&t, NULL, TestBug57421_child, reinterpret_cast<void*>(pthread_self()))); 270 pthread_exit(NULL); 271 } 272 273 // Even though this isn't really a death test, we have to say "DeathTest" here so gtest knows to 274 // run this test (which exits normally) in its own process. 275 276 class stdlib_DeathTest : public BionicDeathTest {}; 277 TEST_F(stdlib_DeathTest,getenv_after_main_thread_exits)278 TEST_F(stdlib_DeathTest, getenv_after_main_thread_exits) { 279 // https://code.google.com/p/android/issues/detail?id=57421 280 ASSERT_EXIT(TestBug57421_main(), ::testing::ExitedWithCode(0), ""); 281 } 282 TEST(stdlib,mkostemp64)283 TEST(stdlib, mkostemp64) { 284 TemporaryFile tf([](char* path) { return mkostemp64(path, O_CLOEXEC); }); 285 int flags = fcntl(tf.fd, F_GETFD); 286 ASSERT_TRUE(flags != -1); 287 ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC); 288 } 289 TEST(stdlib,mkostemp)290 TEST(stdlib, mkostemp) { 291 TemporaryFile tf([](char* path) { return mkostemp(path, O_CLOEXEC); }); 292 int flags = fcntl(tf.fd, F_GETFD); 293 ASSERT_TRUE(flags != -1); 294 ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC); 295 } 296 TEST(stdlib,mkstemp64)297 TEST(stdlib, mkstemp64) { 298 TemporaryFile tf(mkstemp64); 299 struct stat64 sb; 300 ASSERT_EQ(0, fstat64(tf.fd, &sb)); 301 ASSERT_EQ(O_LARGEFILE, fcntl(tf.fd, F_GETFL) & O_LARGEFILE); 302 } 303 TEST(stdlib,mkstemp)304 TEST(stdlib, mkstemp) { 305 TemporaryFile tf; 306 struct stat sb; 307 ASSERT_EQ(0, fstat(tf.fd, &sb)); 308 } 309 TEST(stdlib,system)310 TEST(stdlib, system) { 311 int status; 312 313 status = system("exit 0"); 314 ASSERT_TRUE(WIFEXITED(status)); 315 ASSERT_EQ(0, WEXITSTATUS(status)); 316 317 status = system("exit 1"); 318 ASSERT_TRUE(WIFEXITED(status)); 319 ASSERT_EQ(1, WEXITSTATUS(status)); 320 } 321 TEST(stdlib,atof)322 TEST(stdlib, atof) { 323 ASSERT_DOUBLE_EQ(1.23, atof("1.23")); 324 } 325 326 template <typename T> CheckStrToFloat(T fn (const char * s,char ** end))327 static void CheckStrToFloat(T fn(const char* s, char** end)) { 328 FpUlpEq<0, T> pred; 329 330 EXPECT_PRED_FORMAT2(pred, 9.0, fn("9.0", nullptr)); 331 EXPECT_PRED_FORMAT2(pred, 9.0, fn("0.9e1", nullptr)); 332 EXPECT_PRED_FORMAT2(pred, 9.0, fn("0x1.2p3", nullptr)); 333 334 const char* s = " \t\v\f\r\n9.0"; 335 char* p; 336 EXPECT_PRED_FORMAT2(pred, 9.0, fn(s, &p)); 337 EXPECT_EQ(s + strlen(s), p); 338 339 EXPECT_TRUE(isnan(fn("+nan", nullptr))); 340 EXPECT_TRUE(isnan(fn("nan", nullptr))); 341 EXPECT_TRUE(isnan(fn("-nan", nullptr))); 342 343 EXPECT_TRUE(isnan(fn("+nan(0xff)", nullptr))); 344 EXPECT_TRUE(isnan(fn("nan(0xff)", nullptr))); 345 EXPECT_TRUE(isnan(fn("-nan(0xff)", nullptr))); 346 347 EXPECT_TRUE(isnan(fn("+nanny", &p))); 348 EXPECT_STREQ("ny", p); 349 EXPECT_TRUE(isnan(fn("nanny", &p))); 350 EXPECT_STREQ("ny", p); 351 EXPECT_TRUE(isnan(fn("-nanny", &p))); 352 EXPECT_STREQ("ny", p); 353 354 EXPECT_EQ(0, fn("muppet", &p)); 355 EXPECT_STREQ("muppet", p); 356 EXPECT_EQ(0, fn(" muppet", &p)); 357 EXPECT_STREQ(" muppet", p); 358 359 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("+inf", nullptr)); 360 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("inf", nullptr)); 361 EXPECT_EQ(-std::numeric_limits<T>::infinity(), fn("-inf", nullptr)); 362 363 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("+infinity", nullptr)); 364 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("infinity", nullptr)); 365 EXPECT_EQ(-std::numeric_limits<T>::infinity(), fn("-infinity", nullptr)); 366 367 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("+infinitude", &p)); 368 EXPECT_STREQ("initude", p); 369 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("infinitude", &p)); 370 EXPECT_STREQ("initude", p); 371 EXPECT_EQ(-std::numeric_limits<T>::infinity(), fn("-infinitude", &p)); 372 EXPECT_STREQ("initude", p); 373 374 // Check case-insensitivity. 375 EXPECT_EQ(std::numeric_limits<T>::infinity(), fn("InFiNiTy", nullptr)); 376 EXPECT_TRUE(isnan(fn("NaN", nullptr))); 377 } 378 TEST(stdlib,strtod)379 TEST(stdlib, strtod) { 380 CheckStrToFloat(strtod); 381 } 382 TEST(stdlib,strtof)383 TEST(stdlib, strtof) { 384 CheckStrToFloat(strtof); 385 } 386 TEST(stdlib,strtold)387 TEST(stdlib, strtold) { 388 CheckStrToFloat(strtold); 389 } 390 TEST(stdlib,strtof_2206701)391 TEST(stdlib, strtof_2206701) { 392 ASSERT_EQ(0.0f, strtof("7.0064923216240853546186479164495e-46", NULL)); 393 ASSERT_EQ(1.4e-45f, strtof("7.0064923216240853546186479164496e-46", NULL)); 394 } 395 TEST(stdlib,strtod_largest_subnormal)396 TEST(stdlib, strtod_largest_subnormal) { 397 // This value has been known to cause javac and java to infinite loop. 398 // http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ 399 ASSERT_EQ(2.2250738585072014e-308, strtod("2.2250738585072012e-308", NULL)); 400 ASSERT_EQ(2.2250738585072014e-308, strtod("0.00022250738585072012e-304", NULL)); 401 ASSERT_EQ(2.2250738585072014e-308, strtod("00000002.2250738585072012e-308", NULL)); 402 ASSERT_EQ(2.2250738585072014e-308, strtod("2.225073858507201200000e-308", NULL)); 403 ASSERT_EQ(2.2250738585072014e-308, strtod("2.2250738585072012e-00308", NULL)); 404 ASSERT_EQ(2.2250738585072014e-308, strtod("2.22507385850720129978001e-308", NULL)); 405 ASSERT_EQ(-2.2250738585072014e-308, strtod("-2.2250738585072012e-308", NULL)); 406 } 407 TEST(stdlib,quick_exit)408 TEST(stdlib, quick_exit) { 409 pid_t pid = fork(); 410 ASSERT_NE(-1, pid) << strerror(errno); 411 412 if (pid == 0) { 413 quick_exit(99); 414 } 415 416 AssertChildExited(pid, 99); 417 } 418 419 static int quick_exit_status = 0; 420 quick_exit_1(void)421 static void quick_exit_1(void) { 422 ASSERT_EQ(quick_exit_status, 0); 423 quick_exit_status = 1; 424 } 425 quick_exit_2(void)426 static void quick_exit_2(void) { 427 ASSERT_EQ(quick_exit_status, 1); 428 } 429 not_run(void)430 static void not_run(void) { 431 FAIL(); 432 } 433 TEST(stdlib,at_quick_exit)434 TEST(stdlib, at_quick_exit) { 435 pid_t pid = fork(); 436 ASSERT_NE(-1, pid) << strerror(errno); 437 438 if (pid == 0) { 439 ASSERT_EQ(at_quick_exit(quick_exit_2), 0); 440 ASSERT_EQ(at_quick_exit(quick_exit_1), 0); 441 atexit(not_run); 442 quick_exit(99); 443 } 444 445 AssertChildExited(pid, 99); 446 } 447 TEST(unistd,_Exit)448 TEST(unistd, _Exit) { 449 pid_t pid = fork(); 450 ASSERT_NE(-1, pid) << strerror(errno); 451 452 if (pid == 0) { 453 _Exit(99); 454 } 455 456 AssertChildExited(pid, 99); 457 } 458 TEST(stdlib,pty_smoke)459 TEST(stdlib, pty_smoke) { 460 // getpt returns a pty with O_RDWR|O_NOCTTY. 461 int fd = getpt(); 462 ASSERT_NE(-1, fd); 463 464 // grantpt is a no-op. 465 ASSERT_EQ(0, grantpt(fd)); 466 467 // ptsname_r should start "/dev/pts/". 468 char name_r[128]; 469 ASSERT_EQ(0, ptsname_r(fd, name_r, sizeof(name_r))); 470 name_r[9] = 0; 471 ASSERT_STREQ("/dev/pts/", name_r); 472 473 close(fd); 474 } 475 TEST(stdlib,posix_openpt)476 TEST(stdlib, posix_openpt) { 477 int fd = posix_openpt(O_RDWR|O_NOCTTY|O_CLOEXEC); 478 ASSERT_NE(-1, fd); 479 close(fd); 480 } 481 TEST(stdlib,ptsname_r_ENOTTY)482 TEST(stdlib, ptsname_r_ENOTTY) { 483 errno = 0; 484 char buf[128]; 485 ASSERT_EQ(ENOTTY, ptsname_r(STDOUT_FILENO, buf, sizeof(buf))); 486 ASSERT_EQ(ENOTTY, errno); 487 } 488 TEST(stdlib,ptsname_r_EINVAL)489 TEST(stdlib, ptsname_r_EINVAL) { 490 int fd = getpt(); 491 ASSERT_NE(-1, fd); 492 errno = 0; 493 char* buf = NULL; 494 ASSERT_EQ(EINVAL, ptsname_r(fd, buf, 128)); 495 ASSERT_EQ(EINVAL, errno); 496 close(fd); 497 } 498 TEST(stdlib,ptsname_r_ERANGE)499 TEST(stdlib, ptsname_r_ERANGE) { 500 int fd = getpt(); 501 ASSERT_NE(-1, fd); 502 errno = 0; 503 char buf[1]; 504 ASSERT_EQ(ERANGE, ptsname_r(fd, buf, sizeof(buf))); 505 ASSERT_EQ(ERANGE, errno); 506 close(fd); 507 } 508 TEST(stdlib,ttyname_r)509 TEST(stdlib, ttyname_r) { 510 int fd = getpt(); 511 ASSERT_NE(-1, fd); 512 513 // ttyname_r returns "/dev/ptmx" for a pty. 514 char name_r[128]; 515 ASSERT_EQ(0, ttyname_r(fd, name_r, sizeof(name_r))); 516 ASSERT_STREQ("/dev/ptmx", name_r); 517 518 close(fd); 519 } 520 TEST(stdlib,ttyname_r_ENOTTY)521 TEST(stdlib, ttyname_r_ENOTTY) { 522 int fd = open("/dev/null", O_WRONLY); 523 errno = 0; 524 char buf[128]; 525 ASSERT_EQ(ENOTTY, ttyname_r(fd, buf, sizeof(buf))); 526 ASSERT_EQ(ENOTTY, errno); 527 close(fd); 528 } 529 TEST(stdlib,ttyname_r_EINVAL)530 TEST(stdlib, ttyname_r_EINVAL) { 531 int fd = getpt(); 532 ASSERT_NE(-1, fd); 533 errno = 0; 534 char* buf = NULL; 535 ASSERT_EQ(EINVAL, ttyname_r(fd, buf, 128)); 536 ASSERT_EQ(EINVAL, errno); 537 close(fd); 538 } 539 TEST(stdlib,ttyname_r_ERANGE)540 TEST(stdlib, ttyname_r_ERANGE) { 541 int fd = getpt(); 542 ASSERT_NE(-1, fd); 543 errno = 0; 544 char buf[1]; 545 ASSERT_EQ(ERANGE, ttyname_r(fd, buf, sizeof(buf))); 546 ASSERT_EQ(ERANGE, errno); 547 close(fd); 548 } 549 TEST(stdlib,unlockpt_ENOTTY)550 TEST(stdlib, unlockpt_ENOTTY) { 551 int fd = open("/dev/null", O_WRONLY); 552 errno = 0; 553 ASSERT_EQ(-1, unlockpt(fd)); 554 ASSERT_EQ(ENOTTY, errno); 555 close(fd); 556 } 557 TEST(stdlib,strtol_EINVAL)558 TEST(stdlib, strtol_EINVAL) { 559 errno = 0; 560 strtol("123", NULL, -1); 561 ASSERT_EQ(EINVAL, errno); 562 errno = 0; 563 strtol("123", NULL, 1); 564 ASSERT_EQ(EINVAL, errno); 565 errno = 0; 566 strtol("123", NULL, 37); 567 ASSERT_EQ(EINVAL, errno); 568 } 569 TEST(stdlib,strtoll_EINVAL)570 TEST(stdlib, strtoll_EINVAL) { 571 errno = 0; 572 strtoll("123", NULL, -1); 573 ASSERT_EQ(EINVAL, errno); 574 errno = 0; 575 strtoll("123", NULL, 1); 576 ASSERT_EQ(EINVAL, errno); 577 errno = 0; 578 strtoll("123", NULL, 37); 579 ASSERT_EQ(EINVAL, errno); 580 } 581 TEST(stdlib,strtoul_EINVAL)582 TEST(stdlib, strtoul_EINVAL) { 583 errno = 0; 584 strtoul("123", NULL, -1); 585 ASSERT_EQ(EINVAL, errno); 586 errno = 0; 587 strtoul("123", NULL, 1); 588 ASSERT_EQ(EINVAL, errno); 589 errno = 0; 590 strtoul("123", NULL, 37); 591 ASSERT_EQ(EINVAL, errno); 592 } 593 TEST(stdlib,strtoull_EINVAL)594 TEST(stdlib, strtoull_EINVAL) { 595 errno = 0; 596 strtoull("123", NULL, -1); 597 ASSERT_EQ(EINVAL, errno); 598 errno = 0; 599 strtoull("123", NULL, 1); 600 ASSERT_EQ(EINVAL, errno); 601 errno = 0; 602 strtoull("123", NULL, 37); 603 ASSERT_EQ(EINVAL, errno); 604 } 605 TEST(stdlib,getsubopt)606 TEST(stdlib, getsubopt) { 607 char* const tokens[] = { 608 const_cast<char*>("a"), 609 const_cast<char*>("b"), 610 const_cast<char*>("foo"), 611 nullptr 612 }; 613 std::string input = "a,b,foo=bar,a,unknown"; 614 char* subopts = &input[0]; 615 char* value = nullptr; 616 617 ASSERT_EQ(0, getsubopt(&subopts, tokens, &value)); 618 ASSERT_EQ(nullptr, value); 619 ASSERT_EQ(1, getsubopt(&subopts, tokens, &value)); 620 ASSERT_EQ(nullptr, value); 621 ASSERT_EQ(2, getsubopt(&subopts, tokens, &value)); 622 ASSERT_STREQ("bar", value); 623 ASSERT_EQ(0, getsubopt(&subopts, tokens, &value)); 624 ASSERT_EQ(nullptr, value); 625 626 ASSERT_EQ(-1, getsubopt(&subopts, tokens, &value)); 627 } 628 TEST(stdlib,mblen)629 TEST(stdlib, mblen) { 630 // "If s is a null pointer, mblen() shall return a non-zero or 0 value, if character encodings, 631 // respectively, do or do not have state-dependent encodings." We're always UTF-8. 632 EXPECT_EQ(0, mblen(nullptr, 1)); 633 634 ASSERT_STREQ("C.UTF-8", setlocale(LC_ALL, "C.UTF-8")); 635 636 // 1-byte UTF-8. 637 EXPECT_EQ(1, mblen("abcdef", 6)); 638 // 2-byte UTF-8. 639 EXPECT_EQ(2, mblen("\xc2\xa2" "cdef", 6)); 640 // 3-byte UTF-8. 641 EXPECT_EQ(3, mblen("\xe2\x82\xac" "def", 6)); 642 // 4-byte UTF-8. 643 EXPECT_EQ(4, mblen("\xf0\xa4\xad\xa2" "ef", 6)); 644 645 // Illegal over-long sequence. 646 ASSERT_EQ(-1, mblen("\xf0\x82\x82\xac" "ef", 6)); 647 648 // "mblen() shall ... return 0 (if s points to the null byte)". 649 EXPECT_EQ(0, mblen("", 1)); 650 } 651