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 "base/time/time.h" 6 7 #include <stdint.h> 8 #include <time.h> 9 #include <limits> 10 #include <string> 11 12 #include "base/compiler_specific.h" 13 #include "base/logging.h" 14 #include "base/macros.h" 15 #include "base/strings/stringprintf.h" 16 #include "base/threading/platform_thread.h" 17 #include "build/build_config.h" 18 #include "testing/gtest/include/gtest/gtest.h" 19 20 namespace base { 21 22 namespace { 23 24 TEST(TimeTestOutOfBounds, FromExplodedOutOfBoundsTime) { 25 // FromUTCExploded must set time to Time(0) and failure, if the day is set to 26 // 31 on a 28-30 day month. Test |exploded| returns Time(0) on 31st of 27 // February and 31st of April. New implementation handles this. 28 29 const struct DateTestData { 30 Time::Exploded explode; 31 bool is_valid; 32 } kDateTestData[] = { 33 // 31st of February 34 {{2016, 2, 0, 31, 12, 30, 0, 0}, true}, 35 // 31st of April 36 {{2016, 4, 0, 31, 8, 43, 0, 0}, true}, 37 // Negative month 38 {{2016, -5, 0, 2, 4, 10, 0, 0}, false}, 39 // Negative date of month 40 {{2016, 6, 0, -15, 2, 50, 0, 0}, false}, 41 // Negative hours 42 {{2016, 7, 0, 10, -11, 29, 0, 0}, false}, 43 // Negative minutes 44 {{2016, 3, 0, 14, 10, -29, 0, 0}, false}, 45 // Negative seconds 46 {{2016, 10, 0, 25, 7, 47, -30, 0}, false}, 47 // Negative milliseconds 48 {{2016, 10, 0, 25, 7, 47, 20, -500}, false}, 49 // Hours are too large 50 {{2016, 7, 0, 10, 26, 29, 0, 0}, false}, 51 // Minutes are too large 52 {{2016, 3, 0, 14, 10, 78, 0, 0}, false}, 53 // Seconds are too large 54 {{2016, 10, 0, 25, 7, 47, 234, 0}, false}, 55 // Milliseconds are too large 56 {{2016, 10, 0, 25, 6, 31, 23, 1643}, false}, 57 }; 58 59 for (const auto& test : kDateTestData) { 60 EXPECT_EQ(test.explode.HasValidValues(), test.is_valid); 61 62 base::Time result; 63 EXPECT_FALSE(base::Time::FromUTCExploded(test.explode, &result)); 64 EXPECT_TRUE(result.is_null()); 65 EXPECT_FALSE(base::Time::FromLocalExploded(test.explode, &result)); 66 EXPECT_TRUE(result.is_null()); 67 } 68 } 69 70 // Specialized test fixture allowing time strings without timezones to be 71 // tested by comparing them to a known time in the local zone. 72 // See also pr_time_unittests.cc 73 class TimeTest : public testing::Test { 74 protected: 75 void SetUp() override { 76 // Use mktime to get a time_t, and turn it into a PRTime by converting 77 // seconds to microseconds. Use 15th Oct 2007 12:45:00 local. This 78 // must be a time guaranteed to be outside of a DST fallback hour in 79 // any timezone. 80 struct tm local_comparison_tm = { 81 0, // second 82 45, // minute 83 12, // hour 84 15, // day of month 85 10 - 1, // month 86 2007 - 1900, // year 87 0, // day of week (ignored, output only) 88 0, // day of year (ignored, output only) 89 -1 // DST in effect, -1 tells mktime to figure it out 90 }; 91 92 time_t converted_time = mktime(&local_comparison_tm); 93 ASSERT_GT(converted_time, 0); 94 comparison_time_local_ = Time::FromTimeT(converted_time); 95 96 // time_t representation of 15th Oct 2007 12:45:00 PDT 97 comparison_time_pdt_ = Time::FromTimeT(1192477500); 98 } 99 100 Time comparison_time_local_; 101 Time comparison_time_pdt_; 102 }; 103 104 // Test conversions to/from time_t and exploding/unexploding. 105 TEST_F(TimeTest, TimeT) { 106 // C library time and exploded time. 107 time_t now_t_1 = time(NULL); 108 struct tm tms; 109 #if defined(OS_WIN) 110 localtime_s(&tms, &now_t_1); 111 #elif defined(OS_POSIX) 112 localtime_r(&now_t_1, &tms); 113 #endif 114 115 // Convert to ours. 116 Time our_time_1 = Time::FromTimeT(now_t_1); 117 Time::Exploded exploded; 118 our_time_1.LocalExplode(&exploded); 119 120 // This will test both our exploding and our time_t -> Time conversion. 121 EXPECT_EQ(tms.tm_year + 1900, exploded.year); 122 EXPECT_EQ(tms.tm_mon + 1, exploded.month); 123 EXPECT_EQ(tms.tm_mday, exploded.day_of_month); 124 EXPECT_EQ(tms.tm_hour, exploded.hour); 125 EXPECT_EQ(tms.tm_min, exploded.minute); 126 EXPECT_EQ(tms.tm_sec, exploded.second); 127 128 // Convert exploded back to the time struct. 129 Time our_time_2; 130 EXPECT_TRUE(Time::FromLocalExploded(exploded, &our_time_2)); 131 EXPECT_TRUE(our_time_1 == our_time_2); 132 133 time_t now_t_2 = our_time_2.ToTimeT(); 134 EXPECT_EQ(now_t_1, now_t_2); 135 136 EXPECT_EQ(10, Time().FromTimeT(10).ToTimeT()); 137 EXPECT_EQ(10.0, Time().FromTimeT(10).ToDoubleT()); 138 139 // Conversions of 0 should stay 0. 140 EXPECT_EQ(0, Time().ToTimeT()); 141 EXPECT_EQ(0, Time::FromTimeT(0).ToInternalValue()); 142 } 143 144 // Test conversions to/from javascript time. 145 TEST_F(TimeTest, JsTime) { 146 Time epoch = Time::FromJsTime(0.0); 147 EXPECT_EQ(epoch, Time::UnixEpoch()); 148 Time t = Time::FromJsTime(700000.3); 149 EXPECT_EQ(700.0003, t.ToDoubleT()); 150 t = Time::FromDoubleT(800.73); 151 EXPECT_EQ(800730.0, t.ToJsTime()); 152 } 153 154 #if defined(OS_POSIX) 155 TEST_F(TimeTest, FromTimeVal) { 156 Time now = Time::Now(); 157 Time also_now = Time::FromTimeVal(now.ToTimeVal()); 158 EXPECT_EQ(now, also_now); 159 } 160 #endif // OS_POSIX 161 162 TEST_F(TimeTest, FromExplodedWithMilliseconds) { 163 // Some platform implementations of FromExploded are liable to drop 164 // milliseconds if we aren't careful. 165 Time now = Time::NowFromSystemTime(); 166 Time::Exploded exploded1 = {0}; 167 now.UTCExplode(&exploded1); 168 exploded1.millisecond = 500; 169 Time time; 170 EXPECT_TRUE(Time::FromUTCExploded(exploded1, &time)); 171 Time::Exploded exploded2 = {0}; 172 time.UTCExplode(&exploded2); 173 EXPECT_EQ(exploded1.millisecond, exploded2.millisecond); 174 } 175 176 TEST_F(TimeTest, ZeroIsSymmetric) { 177 Time zero_time(Time::FromTimeT(0)); 178 EXPECT_EQ(0, zero_time.ToTimeT()); 179 180 EXPECT_EQ(0.0, zero_time.ToDoubleT()); 181 } 182 183 TEST_F(TimeTest, LocalExplode) { 184 Time a = Time::Now(); 185 Time::Exploded exploded; 186 a.LocalExplode(&exploded); 187 188 Time b; 189 EXPECT_TRUE(Time::FromLocalExploded(exploded, &b)); 190 191 // The exploded structure doesn't have microseconds, and on Mac & Linux, the 192 // internal OS conversion uses seconds, which will cause truncation. So we 193 // can only make sure that the delta is within one second. 194 EXPECT_TRUE((a - b) < TimeDelta::FromSeconds(1)); 195 } 196 197 TEST_F(TimeTest, UTCExplode) { 198 Time a = Time::Now(); 199 Time::Exploded exploded; 200 a.UTCExplode(&exploded); 201 202 Time b; 203 EXPECT_TRUE(Time::FromUTCExploded(exploded, &b)); 204 EXPECT_TRUE((a - b) < TimeDelta::FromSeconds(1)); 205 } 206 207 TEST_F(TimeTest, LocalMidnight) { 208 Time::Exploded exploded; 209 Time::Now().LocalMidnight().LocalExplode(&exploded); 210 EXPECT_EQ(0, exploded.hour); 211 EXPECT_EQ(0, exploded.minute); 212 EXPECT_EQ(0, exploded.second); 213 EXPECT_EQ(0, exploded.millisecond); 214 } 215 216 TEST_F(TimeTest, ParseTimeTest1) { 217 time_t current_time = 0; 218 time(¤t_time); 219 220 const int BUFFER_SIZE = 64; 221 struct tm local_time = {0}; 222 char time_buf[BUFFER_SIZE] = {0}; 223 #if defined(OS_WIN) 224 localtime_s(&local_time, ¤t_time); 225 asctime_s(time_buf, arraysize(time_buf), &local_time); 226 #elif defined(OS_POSIX) 227 localtime_r(¤t_time, &local_time); 228 asctime_r(&local_time, time_buf); 229 #endif 230 231 Time parsed_time; 232 EXPECT_TRUE(Time::FromString(time_buf, &parsed_time)); 233 EXPECT_EQ(current_time, parsed_time.ToTimeT()); 234 } 235 236 TEST_F(TimeTest, DayOfWeekSunday) { 237 Time time; 238 EXPECT_TRUE(Time::FromString("Sun, 06 May 2012 12:00:00 GMT", &time)); 239 Time::Exploded exploded; 240 time.UTCExplode(&exploded); 241 EXPECT_EQ(0, exploded.day_of_week); 242 } 243 244 TEST_F(TimeTest, DayOfWeekWednesday) { 245 Time time; 246 EXPECT_TRUE(Time::FromString("Wed, 09 May 2012 12:00:00 GMT", &time)); 247 Time::Exploded exploded; 248 time.UTCExplode(&exploded); 249 EXPECT_EQ(3, exploded.day_of_week); 250 } 251 252 TEST_F(TimeTest, DayOfWeekSaturday) { 253 Time time; 254 EXPECT_TRUE(Time::FromString("Sat, 12 May 2012 12:00:00 GMT", &time)); 255 Time::Exploded exploded; 256 time.UTCExplode(&exploded); 257 EXPECT_EQ(6, exploded.day_of_week); 258 } 259 260 TEST_F(TimeTest, ParseTimeTest2) { 261 Time parsed_time; 262 EXPECT_TRUE(Time::FromString("Mon, 15 Oct 2007 19:45:00 GMT", &parsed_time)); 263 EXPECT_EQ(comparison_time_pdt_, parsed_time); 264 } 265 266 TEST_F(TimeTest, ParseTimeTest3) { 267 Time parsed_time; 268 EXPECT_TRUE(Time::FromString("15 Oct 07 12:45:00", &parsed_time)); 269 EXPECT_EQ(comparison_time_local_, parsed_time); 270 } 271 272 TEST_F(TimeTest, ParseTimeTest4) { 273 Time parsed_time; 274 EXPECT_TRUE(Time::FromString("15 Oct 07 19:45 GMT", &parsed_time)); 275 EXPECT_EQ(comparison_time_pdt_, parsed_time); 276 } 277 278 TEST_F(TimeTest, ParseTimeTest5) { 279 Time parsed_time; 280 EXPECT_TRUE(Time::FromString("Mon Oct 15 12:45 PDT 2007", &parsed_time)); 281 EXPECT_EQ(comparison_time_pdt_, parsed_time); 282 } 283 284 TEST_F(TimeTest, ParseTimeTest6) { 285 Time parsed_time; 286 EXPECT_TRUE(Time::FromString("Monday, Oct 15, 2007 12:45 PM", &parsed_time)); 287 EXPECT_EQ(comparison_time_local_, parsed_time); 288 } 289 290 TEST_F(TimeTest, ParseTimeTest7) { 291 Time parsed_time; 292 EXPECT_TRUE(Time::FromString("10/15/07 12:45:00 PM", &parsed_time)); 293 EXPECT_EQ(comparison_time_local_, parsed_time); 294 } 295 296 TEST_F(TimeTest, ParseTimeTest8) { 297 Time parsed_time; 298 EXPECT_TRUE(Time::FromString("15-OCT-2007 12:45pm", &parsed_time)); 299 EXPECT_EQ(comparison_time_local_, parsed_time); 300 } 301 302 TEST_F(TimeTest, ParseTimeTest9) { 303 Time parsed_time; 304 EXPECT_TRUE(Time::FromString("16 Oct 2007 4:45-JST (Tuesday)", &parsed_time)); 305 EXPECT_EQ(comparison_time_pdt_, parsed_time); 306 } 307 308 TEST_F(TimeTest, ParseTimeTest10) { 309 Time parsed_time; 310 EXPECT_TRUE(Time::FromString("15/10/07 12:45", &parsed_time)); 311 EXPECT_EQ(parsed_time, comparison_time_local_); 312 } 313 314 // Test some of edge cases around epoch, etc. 315 TEST_F(TimeTest, ParseTimeTestEpoch0) { 316 Time parsed_time; 317 318 // time_t == epoch == 0 319 EXPECT_TRUE(Time::FromString("Thu Jan 01 01:00:00 +0100 1970", 320 &parsed_time)); 321 EXPECT_EQ(0, parsed_time.ToTimeT()); 322 EXPECT_TRUE(Time::FromString("Thu Jan 01 00:00:00 GMT 1970", 323 &parsed_time)); 324 EXPECT_EQ(0, parsed_time.ToTimeT()); 325 } 326 327 TEST_F(TimeTest, ParseTimeTestEpoch1) { 328 Time parsed_time; 329 330 // time_t == 1 second after epoch == 1 331 EXPECT_TRUE(Time::FromString("Thu Jan 01 01:00:01 +0100 1970", 332 &parsed_time)); 333 EXPECT_EQ(1, parsed_time.ToTimeT()); 334 EXPECT_TRUE(Time::FromString("Thu Jan 01 00:00:01 GMT 1970", 335 &parsed_time)); 336 EXPECT_EQ(1, parsed_time.ToTimeT()); 337 } 338 339 TEST_F(TimeTest, ParseTimeTestEpoch2) { 340 Time parsed_time; 341 342 // time_t == 2 seconds after epoch == 2 343 EXPECT_TRUE(Time::FromString("Thu Jan 01 01:00:02 +0100 1970", 344 &parsed_time)); 345 EXPECT_EQ(2, parsed_time.ToTimeT()); 346 EXPECT_TRUE(Time::FromString("Thu Jan 01 00:00:02 GMT 1970", 347 &parsed_time)); 348 EXPECT_EQ(2, parsed_time.ToTimeT()); 349 } 350 351 TEST_F(TimeTest, ParseTimeTestEpochNeg1) { 352 Time parsed_time; 353 354 // time_t == 1 second before epoch == -1 355 EXPECT_TRUE(Time::FromString("Thu Jan 01 00:59:59 +0100 1970", 356 &parsed_time)); 357 EXPECT_EQ(-1, parsed_time.ToTimeT()); 358 EXPECT_TRUE(Time::FromString("Wed Dec 31 23:59:59 GMT 1969", 359 &parsed_time)); 360 EXPECT_EQ(-1, parsed_time.ToTimeT()); 361 } 362 363 // If time_t is 32 bits, a date after year 2038 will overflow time_t and 364 // cause timegm() to return -1. The parsed time should not be 1 second 365 // before epoch. 366 TEST_F(TimeTest, ParseTimeTestEpochNotNeg1) { 367 Time parsed_time; 368 369 EXPECT_TRUE(Time::FromString("Wed Dec 31 23:59:59 GMT 2100", 370 &parsed_time)); 371 EXPECT_NE(-1, parsed_time.ToTimeT()); 372 } 373 374 TEST_F(TimeTest, ParseTimeTestEpochNeg2) { 375 Time parsed_time; 376 377 // time_t == 2 seconds before epoch == -2 378 EXPECT_TRUE(Time::FromString("Thu Jan 01 00:59:58 +0100 1970", 379 &parsed_time)); 380 EXPECT_EQ(-2, parsed_time.ToTimeT()); 381 EXPECT_TRUE(Time::FromString("Wed Dec 31 23:59:58 GMT 1969", 382 &parsed_time)); 383 EXPECT_EQ(-2, parsed_time.ToTimeT()); 384 } 385 386 TEST_F(TimeTest, ParseTimeTestEpoch1960) { 387 Time parsed_time; 388 389 // time_t before Epoch, in 1960 390 EXPECT_TRUE(Time::FromString("Wed Jun 29 19:40:01 +0100 1960", 391 &parsed_time)); 392 EXPECT_EQ(-299999999, parsed_time.ToTimeT()); 393 EXPECT_TRUE(Time::FromString("Wed Jun 29 18:40:01 GMT 1960", 394 &parsed_time)); 395 EXPECT_EQ(-299999999, parsed_time.ToTimeT()); 396 EXPECT_TRUE(Time::FromString("Wed Jun 29 17:40:01 GMT 1960", 397 &parsed_time)); 398 EXPECT_EQ(-300003599, parsed_time.ToTimeT()); 399 } 400 401 TEST_F(TimeTest, ParseTimeTestEmpty) { 402 Time parsed_time; 403 EXPECT_FALSE(Time::FromString("", &parsed_time)); 404 } 405 406 TEST_F(TimeTest, ParseTimeTestInvalidString) { 407 Time parsed_time; 408 EXPECT_FALSE(Time::FromString("Monday morning 2000", &parsed_time)); 409 } 410 411 TEST_F(TimeTest, ExplodeBeforeUnixEpoch) { 412 static const int kUnixEpochYear = 1970; // In case this changes (ha!). 413 Time t; 414 Time::Exploded exploded; 415 416 t = Time::UnixEpoch() - TimeDelta::FromMicroseconds(1); 417 t.UTCExplode(&exploded); 418 EXPECT_TRUE(exploded.HasValidValues()); 419 // Should be 1969-12-31 23:59:59 999 milliseconds (and 999 microseconds). 420 EXPECT_EQ(kUnixEpochYear - 1, exploded.year); 421 EXPECT_EQ(12, exploded.month); 422 EXPECT_EQ(31, exploded.day_of_month); 423 EXPECT_EQ(23, exploded.hour); 424 EXPECT_EQ(59, exploded.minute); 425 EXPECT_EQ(59, exploded.second); 426 EXPECT_EQ(999, exploded.millisecond); 427 428 t = Time::UnixEpoch() - TimeDelta::FromMicroseconds(1000); 429 t.UTCExplode(&exploded); 430 EXPECT_TRUE(exploded.HasValidValues()); 431 // Should be 1969-12-31 23:59:59 999 milliseconds. 432 EXPECT_EQ(kUnixEpochYear - 1, exploded.year); 433 EXPECT_EQ(12, exploded.month); 434 EXPECT_EQ(31, exploded.day_of_month); 435 EXPECT_EQ(23, exploded.hour); 436 EXPECT_EQ(59, exploded.minute); 437 EXPECT_EQ(59, exploded.second); 438 EXPECT_EQ(999, exploded.millisecond); 439 440 t = Time::UnixEpoch() - TimeDelta::FromMicroseconds(1001); 441 t.UTCExplode(&exploded); 442 EXPECT_TRUE(exploded.HasValidValues()); 443 // Should be 1969-12-31 23:59:59 998 milliseconds (and 999 microseconds). 444 EXPECT_EQ(kUnixEpochYear - 1, exploded.year); 445 EXPECT_EQ(12, exploded.month); 446 EXPECT_EQ(31, exploded.day_of_month); 447 EXPECT_EQ(23, exploded.hour); 448 EXPECT_EQ(59, exploded.minute); 449 EXPECT_EQ(59, exploded.second); 450 EXPECT_EQ(998, exploded.millisecond); 451 452 t = Time::UnixEpoch() - TimeDelta::FromMilliseconds(1000); 453 t.UTCExplode(&exploded); 454 EXPECT_TRUE(exploded.HasValidValues()); 455 // Should be 1969-12-31 23:59:59. 456 EXPECT_EQ(kUnixEpochYear - 1, exploded.year); 457 EXPECT_EQ(12, exploded.month); 458 EXPECT_EQ(31, exploded.day_of_month); 459 EXPECT_EQ(23, exploded.hour); 460 EXPECT_EQ(59, exploded.minute); 461 EXPECT_EQ(59, exploded.second); 462 EXPECT_EQ(0, exploded.millisecond); 463 464 t = Time::UnixEpoch() - TimeDelta::FromMilliseconds(1001); 465 t.UTCExplode(&exploded); 466 EXPECT_TRUE(exploded.HasValidValues()); 467 // Should be 1969-12-31 23:59:58 999 milliseconds. 468 EXPECT_EQ(kUnixEpochYear - 1, exploded.year); 469 EXPECT_EQ(12, exploded.month); 470 EXPECT_EQ(31, exploded.day_of_month); 471 EXPECT_EQ(23, exploded.hour); 472 EXPECT_EQ(59, exploded.minute); 473 EXPECT_EQ(58, exploded.second); 474 EXPECT_EQ(999, exploded.millisecond); 475 476 // Make sure we still handle at/after Unix epoch correctly. 477 t = Time::UnixEpoch(); 478 t.UTCExplode(&exploded); 479 EXPECT_TRUE(exploded.HasValidValues()); 480 // Should be 1970-12-31 00:00:00 0 milliseconds. 481 EXPECT_EQ(kUnixEpochYear, exploded.year); 482 EXPECT_EQ(1, exploded.month); 483 EXPECT_EQ(1, exploded.day_of_month); 484 EXPECT_EQ(0, exploded.hour); 485 EXPECT_EQ(0, exploded.minute); 486 EXPECT_EQ(0, exploded.second); 487 EXPECT_EQ(0, exploded.millisecond); 488 489 t = Time::UnixEpoch() + TimeDelta::FromMicroseconds(1); 490 t.UTCExplode(&exploded); 491 EXPECT_TRUE(exploded.HasValidValues()); 492 // Should be 1970-01-01 00:00:00 0 milliseconds (and 1 microsecond). 493 EXPECT_EQ(kUnixEpochYear, exploded.year); 494 EXPECT_EQ(1, exploded.month); 495 EXPECT_EQ(1, exploded.day_of_month); 496 EXPECT_EQ(0, exploded.hour); 497 EXPECT_EQ(0, exploded.minute); 498 EXPECT_EQ(0, exploded.second); 499 EXPECT_EQ(0, exploded.millisecond); 500 501 t = Time::UnixEpoch() + TimeDelta::FromMicroseconds(1000); 502 t.UTCExplode(&exploded); 503 EXPECT_TRUE(exploded.HasValidValues()); 504 // Should be 1970-01-01 00:00:00 1 millisecond. 505 EXPECT_EQ(kUnixEpochYear, exploded.year); 506 EXPECT_EQ(1, exploded.month); 507 EXPECT_EQ(1, exploded.day_of_month); 508 EXPECT_EQ(0, exploded.hour); 509 EXPECT_EQ(0, exploded.minute); 510 EXPECT_EQ(0, exploded.second); 511 EXPECT_EQ(1, exploded.millisecond); 512 513 t = Time::UnixEpoch() + TimeDelta::FromMilliseconds(1000); 514 t.UTCExplode(&exploded); 515 EXPECT_TRUE(exploded.HasValidValues()); 516 // Should be 1970-01-01 00:00:01. 517 EXPECT_EQ(kUnixEpochYear, exploded.year); 518 EXPECT_EQ(1, exploded.month); 519 EXPECT_EQ(1, exploded.day_of_month); 520 EXPECT_EQ(0, exploded.hour); 521 EXPECT_EQ(0, exploded.minute); 522 EXPECT_EQ(1, exploded.second); 523 EXPECT_EQ(0, exploded.millisecond); 524 525 t = Time::UnixEpoch() + TimeDelta::FromMilliseconds(1001); 526 t.UTCExplode(&exploded); 527 EXPECT_TRUE(exploded.HasValidValues()); 528 // Should be 1970-01-01 00:00:01 1 millisecond. 529 EXPECT_EQ(kUnixEpochYear, exploded.year); 530 EXPECT_EQ(1, exploded.month); 531 EXPECT_EQ(1, exploded.day_of_month); 532 EXPECT_EQ(0, exploded.hour); 533 EXPECT_EQ(0, exploded.minute); 534 EXPECT_EQ(1, exploded.second); 535 EXPECT_EQ(1, exploded.millisecond); 536 } 537 538 TEST_F(TimeTest, Max) { 539 Time max = Time::Max(); 540 EXPECT_TRUE(max.is_max()); 541 EXPECT_EQ(max, Time::Max()); 542 EXPECT_GT(max, Time::Now()); 543 EXPECT_GT(max, Time()); 544 } 545 546 TEST_F(TimeTest, MaxConversions) { 547 Time t = Time::Max(); 548 EXPECT_EQ(std::numeric_limits<int64_t>::max(), t.ToInternalValue()); 549 550 t = Time::FromDoubleT(std::numeric_limits<double>::infinity()); 551 EXPECT_TRUE(t.is_max()); 552 EXPECT_EQ(std::numeric_limits<double>::infinity(), t.ToDoubleT()); 553 554 t = Time::FromJsTime(std::numeric_limits<double>::infinity()); 555 EXPECT_TRUE(t.is_max()); 556 EXPECT_EQ(std::numeric_limits<double>::infinity(), t.ToJsTime()); 557 558 t = Time::FromTimeT(std::numeric_limits<time_t>::max()); 559 EXPECT_TRUE(t.is_max()); 560 EXPECT_EQ(std::numeric_limits<time_t>::max(), t.ToTimeT()); 561 562 #if defined(OS_POSIX) 563 struct timeval tval; 564 tval.tv_sec = std::numeric_limits<time_t>::max(); 565 tval.tv_usec = static_cast<suseconds_t>(Time::kMicrosecondsPerSecond) - 1; 566 t = Time::FromTimeVal(tval); 567 EXPECT_TRUE(t.is_max()); 568 tval = t.ToTimeVal(); 569 EXPECT_EQ(std::numeric_limits<time_t>::max(), tval.tv_sec); 570 EXPECT_EQ(static_cast<suseconds_t>(Time::kMicrosecondsPerSecond) - 1, 571 tval.tv_usec); 572 #endif 573 574 #if defined(OS_MACOSX) 575 t = Time::FromCFAbsoluteTime(std::numeric_limits<CFAbsoluteTime>::infinity()); 576 EXPECT_TRUE(t.is_max()); 577 EXPECT_EQ(std::numeric_limits<CFAbsoluteTime>::infinity(), 578 t.ToCFAbsoluteTime()); 579 #endif 580 581 #if defined(OS_WIN) 582 FILETIME ftime; 583 ftime.dwHighDateTime = std::numeric_limits<DWORD>::max(); 584 ftime.dwLowDateTime = std::numeric_limits<DWORD>::max(); 585 t = Time::FromFileTime(ftime); 586 EXPECT_TRUE(t.is_max()); 587 ftime = t.ToFileTime(); 588 EXPECT_EQ(std::numeric_limits<DWORD>::max(), ftime.dwHighDateTime); 589 EXPECT_EQ(std::numeric_limits<DWORD>::max(), ftime.dwLowDateTime); 590 #endif 591 } 592 593 #if defined(OS_MACOSX) 594 TEST_F(TimeTest, TimeTOverflow) { 595 Time t = Time::FromInternalValue(std::numeric_limits<int64_t>::max() - 1); 596 EXPECT_FALSE(t.is_max()); 597 EXPECT_EQ(std::numeric_limits<time_t>::max(), t.ToTimeT()); 598 } 599 #endif 600 601 #if defined(OS_ANDROID) 602 TEST_F(TimeTest, FromLocalExplodedCrashOnAndroid) { 603 // This crashed inside Time:: FromLocalExploded() on Android 4.1.2. 604 // See http://crbug.com/287821 605 Time::Exploded midnight = {2013, // year 606 10, // month 607 0, // day_of_week 608 13, // day_of_month 609 0, // hour 610 0, // minute 611 0, // second 612 }; 613 // The string passed to putenv() must be a char* and the documentation states 614 // that it 'becomes part of the environment', so use a static buffer. 615 static char buffer[] = "TZ=America/Santiago"; 616 putenv(buffer); 617 tzset(); 618 Time t; 619 EXPECT_TRUE(Time::FromLocalExploded(midnight, &t)); 620 EXPECT_EQ(1381633200, t.ToTimeT()); 621 } 622 #endif // OS_ANDROID 623 624 TEST(TimeTicks, Deltas) { 625 for (int index = 0; index < 50; index++) { 626 TimeTicks ticks_start = TimeTicks::Now(); 627 base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(10)); 628 TimeTicks ticks_stop = TimeTicks::Now(); 629 TimeDelta delta = ticks_stop - ticks_start; 630 // Note: Although we asked for a 10ms sleep, if the 631 // time clock has a finer granularity than the Sleep() 632 // clock, it is quite possible to wakeup early. Here 633 // is how that works: 634 // Time(ms timer) Time(us timer) 635 // 5 5010 636 // 6 6010 637 // 7 7010 638 // 8 8010 639 // 9 9000 640 // Elapsed 4ms 3990us 641 // 642 // Unfortunately, our InMilliseconds() function truncates 643 // rather than rounds. We should consider fixing this 644 // so that our averages come out better. 645 EXPECT_GE(delta.InMilliseconds(), 9); 646 EXPECT_GE(delta.InMicroseconds(), 9000); 647 EXPECT_EQ(delta.InSeconds(), 0); 648 } 649 } 650 651 static void HighResClockTest(TimeTicks (*GetTicks)()) { 652 // IsHighResolution() is false on some systems. Since the product still works 653 // even if it's false, it makes this entire test questionable. 654 if (!TimeTicks::IsHighResolution()) 655 return; 656 657 // Why do we loop here? 658 // We're trying to measure that intervals increment in a VERY small amount 659 // of time -- less than 15ms. Unfortunately, if we happen to have a 660 // context switch in the middle of our test, the context switch could easily 661 // exceed our limit. So, we iterate on this several times. As long as we're 662 // able to detect the fine-granularity timers at least once, then the test 663 // has succeeded. 664 665 const int kTargetGranularityUs = 15000; // 15ms 666 667 bool success = false; 668 int retries = 100; // Arbitrary. 669 TimeDelta delta; 670 while (!success && retries--) { 671 TimeTicks ticks_start = GetTicks(); 672 // Loop until we can detect that the clock has changed. Non-HighRes timers 673 // will increment in chunks, e.g. 15ms. By spinning until we see a clock 674 // change, we detect the minimum time between measurements. 675 do { 676 delta = GetTicks() - ticks_start; 677 } while (delta.InMilliseconds() == 0); 678 679 if (delta.InMicroseconds() <= kTargetGranularityUs) 680 success = true; 681 } 682 683 // In high resolution mode, we expect to see the clock increment 684 // in intervals less than 15ms. 685 EXPECT_TRUE(success); 686 } 687 688 TEST(TimeTicks, HighRes) { 689 HighResClockTest(&TimeTicks::Now); 690 } 691 692 // Fails frequently on Android http://crbug.com/352633 with: 693 // Expected: (delta_thread.InMicroseconds()) > (0), actual: 0 vs 0 694 #if defined(OS_ANDROID) 695 #define MAYBE_ThreadNow DISABLED_ThreadNow 696 #else 697 #define MAYBE_ThreadNow ThreadNow 698 #endif 699 TEST(ThreadTicks, MAYBE_ThreadNow) { 700 if (ThreadTicks::IsSupported()) { 701 ThreadTicks::WaitUntilInitialized(); 702 TimeTicks begin = TimeTicks::Now(); 703 ThreadTicks begin_thread = ThreadTicks::Now(); 704 // Make sure that ThreadNow value is non-zero. 705 EXPECT_GT(begin_thread, ThreadTicks()); 706 // Sleep for 10 milliseconds to get the thread de-scheduled. 707 base::PlatformThread::Sleep(base::TimeDelta::FromMilliseconds(10)); 708 ThreadTicks end_thread = ThreadTicks::Now(); 709 TimeTicks end = TimeTicks::Now(); 710 TimeDelta delta = end - begin; 711 TimeDelta delta_thread = end_thread - begin_thread; 712 // Make sure that some thread time have elapsed. 713 EXPECT_GT(delta_thread.InMicroseconds(), 0); 714 // But the thread time is at least 9ms less than clock time. 715 TimeDelta difference = delta - delta_thread; 716 EXPECT_GE(difference.InMicroseconds(), 9000); 717 } 718 } 719 720 TEST(TimeTicks, SnappedToNextTickBasic) { 721 base::TimeTicks phase = base::TimeTicks::FromInternalValue(4000); 722 base::TimeDelta interval = base::TimeDelta::FromMicroseconds(1000); 723 base::TimeTicks timestamp; 724 725 // Timestamp in previous interval. 726 timestamp = base::TimeTicks::FromInternalValue(3500); 727 EXPECT_EQ(4000, 728 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 729 730 // Timestamp in next interval. 731 timestamp = base::TimeTicks::FromInternalValue(4500); 732 EXPECT_EQ(5000, 733 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 734 735 // Timestamp multiple intervals before. 736 timestamp = base::TimeTicks::FromInternalValue(2500); 737 EXPECT_EQ(3000, 738 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 739 740 // Timestamp multiple intervals after. 741 timestamp = base::TimeTicks::FromInternalValue(6500); 742 EXPECT_EQ(7000, 743 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 744 745 // Timestamp on previous interval. 746 timestamp = base::TimeTicks::FromInternalValue(3000); 747 EXPECT_EQ(3000, 748 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 749 750 // Timestamp on next interval. 751 timestamp = base::TimeTicks::FromInternalValue(5000); 752 EXPECT_EQ(5000, 753 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 754 755 // Timestamp equal to phase. 756 timestamp = base::TimeTicks::FromInternalValue(4000); 757 EXPECT_EQ(4000, 758 timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 759 } 760 761 TEST(TimeTicks, SnappedToNextTickOverflow) { 762 // int(big_timestamp / interval) < 0, so this causes a crash if the number of 763 // intervals elapsed is attempted to be stored in an int. 764 base::TimeTicks phase = base::TimeTicks::FromInternalValue(0); 765 base::TimeDelta interval = base::TimeDelta::FromMicroseconds(4000); 766 base::TimeTicks big_timestamp = 767 base::TimeTicks::FromInternalValue(8635916564000); 768 769 EXPECT_EQ(8635916564000, 770 big_timestamp.SnappedToNextTick(phase, interval).ToInternalValue()); 771 EXPECT_EQ(8635916564000, 772 big_timestamp.SnappedToNextTick(big_timestamp, interval) 773 .ToInternalValue()); 774 } 775 776 TEST(TimeDelta, FromAndIn) { 777 // static_assert also checks that the contained expression is a constant 778 // expression, meaning all its components are suitable for initializing global 779 // variables. 780 static_assert(TimeDelta::FromDays(2) == TimeDelta::FromHours(48), ""); 781 static_assert(TimeDelta::FromHours(3) == TimeDelta::FromMinutes(180), ""); 782 static_assert(TimeDelta::FromMinutes(2) == TimeDelta::FromSeconds(120), ""); 783 static_assert(TimeDelta::FromSeconds(2) == TimeDelta::FromMilliseconds(2000), 784 ""); 785 static_assert( 786 TimeDelta::FromMilliseconds(2) == TimeDelta::FromMicroseconds(2000), ""); 787 static_assert( 788 TimeDelta::FromSecondsD(2.3) == TimeDelta::FromMilliseconds(2300), ""); 789 static_assert( 790 TimeDelta::FromMillisecondsD(2.5) == TimeDelta::FromMicroseconds(2500), 791 ""); 792 EXPECT_EQ(13, TimeDelta::FromDays(13).InDays()); 793 EXPECT_EQ(13, TimeDelta::FromHours(13).InHours()); 794 EXPECT_EQ(13, TimeDelta::FromMinutes(13).InMinutes()); 795 EXPECT_EQ(13, TimeDelta::FromSeconds(13).InSeconds()); 796 EXPECT_EQ(13.0, TimeDelta::FromSeconds(13).InSecondsF()); 797 EXPECT_EQ(13, TimeDelta::FromMilliseconds(13).InMilliseconds()); 798 EXPECT_EQ(13.0, TimeDelta::FromMilliseconds(13).InMillisecondsF()); 799 EXPECT_EQ(13, TimeDelta::FromSecondsD(13.1).InSeconds()); 800 EXPECT_EQ(13.1, TimeDelta::FromSecondsD(13.1).InSecondsF()); 801 EXPECT_EQ(13, TimeDelta::FromMillisecondsD(13.3).InMilliseconds()); 802 EXPECT_EQ(13.3, TimeDelta::FromMillisecondsD(13.3).InMillisecondsF()); 803 EXPECT_EQ(13, TimeDelta::FromMicroseconds(13).InMicroseconds()); 804 EXPECT_EQ(3.456, TimeDelta::FromMillisecondsD(3.45678).InMillisecondsF()); 805 } 806 807 #if defined(OS_POSIX) 808 TEST(TimeDelta, TimeSpecConversion) { 809 struct timespec result = TimeDelta::FromSeconds(0).ToTimeSpec(); 810 EXPECT_EQ(result.tv_sec, 0); 811 EXPECT_EQ(result.tv_nsec, 0); 812 813 result = TimeDelta::FromSeconds(1).ToTimeSpec(); 814 EXPECT_EQ(result.tv_sec, 1); 815 EXPECT_EQ(result.tv_nsec, 0); 816 817 result = TimeDelta::FromMicroseconds(1).ToTimeSpec(); 818 EXPECT_EQ(result.tv_sec, 0); 819 EXPECT_EQ(result.tv_nsec, 1000); 820 821 result = TimeDelta::FromMicroseconds( 822 Time::kMicrosecondsPerSecond + 1).ToTimeSpec(); 823 EXPECT_EQ(result.tv_sec, 1); 824 EXPECT_EQ(result.tv_nsec, 1000); 825 } 826 #endif // OS_POSIX 827 828 // Our internal time format is serialized in things like databases, so it's 829 // important that it's consistent across all our platforms. We use the 1601 830 // Windows epoch as the internal format across all platforms. 831 TEST(TimeDelta, WindowsEpoch) { 832 Time::Exploded exploded; 833 exploded.year = 1970; 834 exploded.month = 1; 835 exploded.day_of_week = 0; // Should be unusued. 836 exploded.day_of_month = 1; 837 exploded.hour = 0; 838 exploded.minute = 0; 839 exploded.second = 0; 840 exploded.millisecond = 0; 841 Time t; 842 EXPECT_TRUE(Time::FromUTCExploded(exploded, &t)); 843 // Unix 1970 epoch. 844 EXPECT_EQ(INT64_C(11644473600000000), t.ToInternalValue()); 845 846 // We can't test 1601 epoch, since the system time functions on Linux 847 // only compute years starting from 1900. 848 } 849 850 // We could define this separately for Time, TimeTicks and TimeDelta but the 851 // definitions would be identical anyway. 852 template <class Any> 853 std::string AnyToString(Any any) { 854 std::ostringstream oss; 855 oss << any; 856 return oss.str(); 857 } 858 859 TEST(TimeDelta, Magnitude) { 860 const int64_t zero = 0; 861 EXPECT_EQ(TimeDelta::FromMicroseconds(zero), 862 TimeDelta::FromMicroseconds(zero).magnitude()); 863 864 const int64_t one = 1; 865 const int64_t negative_one = -1; 866 EXPECT_EQ(TimeDelta::FromMicroseconds(one), 867 TimeDelta::FromMicroseconds(one).magnitude()); 868 EXPECT_EQ(TimeDelta::FromMicroseconds(one), 869 TimeDelta::FromMicroseconds(negative_one).magnitude()); 870 871 const int64_t max_int64_minus_one = std::numeric_limits<int64_t>::max() - 1; 872 const int64_t min_int64_plus_two = std::numeric_limits<int64_t>::min() + 2; 873 EXPECT_EQ(TimeDelta::FromMicroseconds(max_int64_minus_one), 874 TimeDelta::FromMicroseconds(max_int64_minus_one).magnitude()); 875 EXPECT_EQ(TimeDelta::FromMicroseconds(max_int64_minus_one), 876 TimeDelta::FromMicroseconds(min_int64_plus_two).magnitude()); 877 } 878 879 TEST(TimeDelta, Max) { 880 TimeDelta max = TimeDelta::Max(); 881 EXPECT_TRUE(max.is_max()); 882 EXPECT_EQ(max, TimeDelta::Max()); 883 EXPECT_GT(max, TimeDelta::FromDays(100 * 365)); 884 EXPECT_GT(max, TimeDelta()); 885 } 886 887 bool IsMin(TimeDelta delta) { 888 return (-delta).is_max(); 889 } 890 891 TEST(TimeDelta, MaxConversions) { 892 TimeDelta t = TimeDelta::Max(); 893 EXPECT_EQ(std::numeric_limits<int64_t>::max(), t.ToInternalValue()); 894 895 EXPECT_EQ(std::numeric_limits<int>::max(), t.InDays()); 896 EXPECT_EQ(std::numeric_limits<int>::max(), t.InHours()); 897 EXPECT_EQ(std::numeric_limits<int>::max(), t.InMinutes()); 898 EXPECT_EQ(std::numeric_limits<double>::infinity(), t.InSecondsF()); 899 EXPECT_EQ(std::numeric_limits<int64_t>::max(), t.InSeconds()); 900 EXPECT_EQ(std::numeric_limits<double>::infinity(), t.InMillisecondsF()); 901 EXPECT_EQ(std::numeric_limits<int64_t>::max(), t.InMilliseconds()); 902 EXPECT_EQ(std::numeric_limits<int64_t>::max(), t.InMillisecondsRoundedUp()); 903 904 t = TimeDelta::FromDays(std::numeric_limits<int>::max()); 905 EXPECT_TRUE(t.is_max()); 906 907 t = TimeDelta::FromHours(std::numeric_limits<int>::max()); 908 EXPECT_TRUE(t.is_max()); 909 910 t = TimeDelta::FromMinutes(std::numeric_limits<int>::max()); 911 EXPECT_TRUE(t.is_max()); 912 913 int64_t max_int = std::numeric_limits<int64_t>::max(); 914 915 t = TimeDelta::FromSeconds(max_int / Time::kMicrosecondsPerSecond + 1); 916 EXPECT_TRUE(t.is_max()); 917 918 t = TimeDelta::FromMilliseconds(max_int / Time::kMillisecondsPerSecond + 1); 919 EXPECT_TRUE(t.is_max()); 920 921 t = TimeDelta::FromMicroseconds(max_int); 922 EXPECT_TRUE(t.is_max()); 923 924 t = TimeDelta::FromSeconds(-max_int / Time::kMicrosecondsPerSecond - 1); 925 EXPECT_TRUE(IsMin(t)); 926 927 t = TimeDelta::FromMilliseconds(-max_int / Time::kMillisecondsPerSecond - 1); 928 EXPECT_TRUE(IsMin(t)); 929 930 t = TimeDelta::FromMicroseconds(-max_int); 931 EXPECT_TRUE(IsMin(t)); 932 933 t = -TimeDelta::FromMicroseconds(std::numeric_limits<int64_t>::min()); 934 EXPECT_FALSE(IsMin(t)); 935 936 t = TimeDelta::FromSecondsD(std::numeric_limits<double>::infinity()); 937 EXPECT_TRUE(t.is_max()); 938 939 double max_d = max_int; 940 941 t = TimeDelta::FromSecondsD(max_d / Time::kMicrosecondsPerSecond + 1); 942 EXPECT_TRUE(t.is_max()); 943 944 t = TimeDelta::FromMillisecondsD(std::numeric_limits<double>::infinity()); 945 EXPECT_TRUE(t.is_max()); 946 947 t = TimeDelta::FromMillisecondsD(max_d / Time::kMillisecondsPerSecond * 2); 948 EXPECT_TRUE(t.is_max()); 949 950 t = TimeDelta::FromSecondsD(-max_d / Time::kMicrosecondsPerSecond - 1); 951 EXPECT_TRUE(IsMin(t)); 952 953 t = TimeDelta::FromMillisecondsD(-max_d / Time::kMillisecondsPerSecond * 2); 954 EXPECT_TRUE(IsMin(t)); 955 } 956 957 TEST(TimeDelta, NumericOperators) { 958 double d = 0.5; 959 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 960 TimeDelta::FromMilliseconds(1000) * d); 961 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 962 TimeDelta::FromMilliseconds(1000) / d); 963 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 964 TimeDelta::FromMilliseconds(1000) *= d); 965 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 966 TimeDelta::FromMilliseconds(1000) /= d); 967 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 968 d * TimeDelta::FromMilliseconds(1000)); 969 970 float f = 0.5; 971 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 972 TimeDelta::FromMilliseconds(1000) * f); 973 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 974 TimeDelta::FromMilliseconds(1000) / f); 975 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 976 TimeDelta::FromMilliseconds(1000) *= f); 977 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 978 TimeDelta::FromMilliseconds(1000) /= f); 979 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 980 f * TimeDelta::FromMilliseconds(1000)); 981 982 int i = 2; 983 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 984 TimeDelta::FromMilliseconds(1000) * i); 985 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 986 TimeDelta::FromMilliseconds(1000) / i); 987 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 988 TimeDelta::FromMilliseconds(1000) *= i); 989 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 990 TimeDelta::FromMilliseconds(1000) /= i); 991 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 992 i * TimeDelta::FromMilliseconds(1000)); 993 994 int64_t i64 = 2; 995 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 996 TimeDelta::FromMilliseconds(1000) * i64); 997 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 998 TimeDelta::FromMilliseconds(1000) / i64); 999 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1000 TimeDelta::FromMilliseconds(1000) *= i64); 1001 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1002 TimeDelta::FromMilliseconds(1000) /= i64); 1003 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1004 i64 * TimeDelta::FromMilliseconds(1000)); 1005 1006 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1007 TimeDelta::FromMilliseconds(1000) * 0.5); 1008 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1009 TimeDelta::FromMilliseconds(1000) / 0.5); 1010 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1011 TimeDelta::FromMilliseconds(1000) *= 0.5); 1012 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1013 TimeDelta::FromMilliseconds(1000) /= 0.5); 1014 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1015 0.5 * TimeDelta::FromMilliseconds(1000)); 1016 1017 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1018 TimeDelta::FromMilliseconds(1000) * 2); 1019 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1020 TimeDelta::FromMilliseconds(1000) / 2); 1021 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1022 TimeDelta::FromMilliseconds(1000) *= 2); 1023 EXPECT_EQ(TimeDelta::FromMilliseconds(500), 1024 TimeDelta::FromMilliseconds(1000) /= 2); 1025 EXPECT_EQ(TimeDelta::FromMilliseconds(2000), 1026 2 * TimeDelta::FromMilliseconds(1000)); 1027 } 1028 1029 TEST(TimeDelta, Overflows) { 1030 // Some sanity checks. 1031 EXPECT_TRUE(TimeDelta::Max().is_max()); 1032 EXPECT_TRUE(IsMin(-TimeDelta::Max())); 1033 EXPECT_GT(TimeDelta(), -TimeDelta::Max()); 1034 1035 TimeDelta large_delta = TimeDelta::Max() - TimeDelta::FromMilliseconds(1); 1036 TimeDelta large_negative = -large_delta; 1037 EXPECT_GT(TimeDelta(), large_negative); 1038 EXPECT_FALSE(large_delta.is_max()); 1039 EXPECT_FALSE(IsMin(-large_negative)); 1040 TimeDelta one_second = TimeDelta::FromSeconds(1); 1041 1042 // Test +, -, * and / operators. 1043 EXPECT_TRUE((large_delta + one_second).is_max()); 1044 EXPECT_TRUE(IsMin(large_negative + (-one_second))); 1045 EXPECT_TRUE(IsMin(large_negative - one_second)); 1046 EXPECT_TRUE((large_delta - (-one_second)).is_max()); 1047 EXPECT_TRUE((large_delta * 2).is_max()); 1048 EXPECT_TRUE(IsMin(large_delta * -2)); 1049 EXPECT_TRUE((large_delta / 0.5).is_max()); 1050 EXPECT_TRUE(IsMin(large_delta / -0.5)); 1051 1052 // Test +=, -=, *= and /= operators. 1053 TimeDelta delta = large_delta; 1054 delta += one_second; 1055 EXPECT_TRUE(delta.is_max()); 1056 delta = large_negative; 1057 delta += -one_second; 1058 EXPECT_TRUE(IsMin(delta)); 1059 1060 delta = large_negative; 1061 delta -= one_second; 1062 EXPECT_TRUE(IsMin(delta)); 1063 delta = large_delta; 1064 delta -= -one_second; 1065 EXPECT_TRUE(delta.is_max()); 1066 1067 delta = large_delta; 1068 delta *= 2; 1069 EXPECT_TRUE(delta.is_max()); 1070 delta = large_negative; 1071 delta *= 1.5; 1072 EXPECT_TRUE(IsMin(delta)); 1073 1074 delta = large_delta; 1075 delta /= 0.5; 1076 EXPECT_TRUE(delta.is_max()); 1077 delta = large_negative; 1078 delta /= 0.5; 1079 EXPECT_TRUE(IsMin(delta)); 1080 1081 // Test operations with Time and TimeTicks. 1082 EXPECT_TRUE((large_delta + Time::Now()).is_max()); 1083 EXPECT_TRUE((large_delta + TimeTicks::Now()).is_max()); 1084 EXPECT_TRUE((Time::Now() + large_delta).is_max()); 1085 EXPECT_TRUE((TimeTicks::Now() + large_delta).is_max()); 1086 1087 Time time_now = Time::Now(); 1088 EXPECT_EQ(one_second, (time_now + one_second) - time_now); 1089 EXPECT_EQ(-one_second, (time_now - one_second) - time_now); 1090 1091 TimeTicks ticks_now = TimeTicks::Now(); 1092 EXPECT_EQ(-one_second, (ticks_now - one_second) - ticks_now); 1093 EXPECT_EQ(one_second, (ticks_now + one_second) - ticks_now); 1094 } 1095 1096 TEST(TimeDeltaLogging, DCheckEqCompiles) { 1097 DCHECK_EQ(TimeDelta(), TimeDelta()); 1098 } 1099 1100 TEST(TimeDeltaLogging, EmptyIsZero) { 1101 TimeDelta zero; 1102 EXPECT_EQ("0s", AnyToString(zero)); 1103 } 1104 1105 TEST(TimeDeltaLogging, FiveHundredMs) { 1106 TimeDelta five_hundred_ms = TimeDelta::FromMilliseconds(500); 1107 EXPECT_EQ("0.5s", AnyToString(five_hundred_ms)); 1108 } 1109 1110 TEST(TimeDeltaLogging, MinusTenSeconds) { 1111 TimeDelta minus_ten_seconds = TimeDelta::FromSeconds(-10); 1112 EXPECT_EQ("-10s", AnyToString(minus_ten_seconds)); 1113 } 1114 1115 TEST(TimeDeltaLogging, DoesNotMessUpFormattingFlags) { 1116 std::ostringstream oss; 1117 std::ios_base::fmtflags flags_before = oss.flags(); 1118 oss << TimeDelta(); 1119 EXPECT_EQ(flags_before, oss.flags()); 1120 } 1121 1122 TEST(TimeDeltaLogging, DoesNotMakeStreamBad) { 1123 std::ostringstream oss; 1124 oss << TimeDelta(); 1125 EXPECT_TRUE(oss.good()); 1126 } 1127 1128 TEST(TimeLogging, DCheckEqCompiles) { 1129 DCHECK_EQ(Time(), Time()); 1130 } 1131 1132 TEST(TimeLogging, ChromeBirthdate) { 1133 Time birthdate; 1134 ASSERT_TRUE(Time::FromString("Tue, 02 Sep 2008 09:42:18 GMT", &birthdate)); 1135 EXPECT_EQ("2008-09-02 09:42:18.000 UTC", AnyToString(birthdate)); 1136 } 1137 1138 TEST(TimeLogging, DoesNotMessUpFormattingFlags) { 1139 std::ostringstream oss; 1140 std::ios_base::fmtflags flags_before = oss.flags(); 1141 oss << Time(); 1142 EXPECT_EQ(flags_before, oss.flags()); 1143 } 1144 1145 TEST(TimeLogging, DoesNotMakeStreamBad) { 1146 std::ostringstream oss; 1147 oss << Time(); 1148 EXPECT_TRUE(oss.good()); 1149 } 1150 1151 TEST(TimeTicksLogging, DCheckEqCompiles) { 1152 DCHECK_EQ(TimeTicks(), TimeTicks()); 1153 } 1154 1155 TEST(TimeTicksLogging, ZeroTime) { 1156 TimeTicks zero; 1157 EXPECT_EQ("0 bogo-microseconds", AnyToString(zero)); 1158 } 1159 1160 TEST(TimeTicksLogging, FortyYearsLater) { 1161 TimeTicks forty_years_later = 1162 TimeTicks() + TimeDelta::FromDays(365.25 * 40); 1163 EXPECT_EQ("1262304000000000 bogo-microseconds", 1164 AnyToString(forty_years_later)); 1165 } 1166 1167 TEST(TimeTicksLogging, DoesNotMessUpFormattingFlags) { 1168 std::ostringstream oss; 1169 std::ios_base::fmtflags flags_before = oss.flags(); 1170 oss << TimeTicks(); 1171 EXPECT_EQ(flags_before, oss.flags()); 1172 } 1173 1174 TEST(TimeTicksLogging, DoesNotMakeStreamBad) { 1175 std::ostringstream oss; 1176 oss << TimeTicks(); 1177 EXPECT_TRUE(oss.good()); 1178 } 1179 1180 } // namespace 1181 1182 } // namespace base 1183
