github.com/m10x/go/src@v0.0.0-20220112094212-ba61592315da/time/time_test.go (about) 1 // Copyright 2009 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package time_test 6 7 import ( 8 "bytes" 9 "encoding/gob" 10 "encoding/json" 11 "fmt" 12 "math" 13 "math/big" 14 "math/rand" 15 "os" 16 "runtime" 17 "strings" 18 "sync" 19 "testing" 20 "testing/quick" 21 . "time" 22 ) 23 24 // We should be in PST/PDT, but if the time zone files are missing we 25 // won't be. The purpose of this test is to at least explain why some of 26 // the subsequent tests fail. 27 func TestZoneData(t *testing.T) { 28 lt := Now() 29 // PST is 8 hours west, PDT is 7 hours west. We could use the name but it's not unique. 30 if name, off := lt.Zone(); off != -8*60*60 && off != -7*60*60 { 31 t.Errorf("Unable to find US Pacific time zone data for testing; time zone is %q offset %d", name, off) 32 t.Error("Likely problem: the time zone files have not been installed.") 33 } 34 } 35 36 // parsedTime is the struct representing a parsed time value. 37 type parsedTime struct { 38 Year int 39 Month Month 40 Day int 41 Hour, Minute, Second int // 15:04:05 is 15, 4, 5. 42 Nanosecond int // Fractional second. 43 Weekday Weekday 44 ZoneOffset int // seconds east of UTC, e.g. -7*60*60 for -0700 45 Zone string // e.g., "MST" 46 } 47 48 type TimeTest struct { 49 seconds int64 50 golden parsedTime 51 } 52 53 var utctests = []TimeTest{ 54 {0, parsedTime{1970, January, 1, 0, 0, 0, 0, Thursday, 0, "UTC"}}, 55 {1221681866, parsedTime{2008, September, 17, 20, 4, 26, 0, Wednesday, 0, "UTC"}}, 56 {-1221681866, parsedTime{1931, April, 16, 3, 55, 34, 0, Thursday, 0, "UTC"}}, 57 {-11644473600, parsedTime{1601, January, 1, 0, 0, 0, 0, Monday, 0, "UTC"}}, 58 {599529660, parsedTime{1988, December, 31, 0, 1, 0, 0, Saturday, 0, "UTC"}}, 59 {978220860, parsedTime{2000, December, 31, 0, 1, 0, 0, Sunday, 0, "UTC"}}, 60 } 61 62 var nanoutctests = []TimeTest{ 63 {0, parsedTime{1970, January, 1, 0, 0, 0, 1e8, Thursday, 0, "UTC"}}, 64 {1221681866, parsedTime{2008, September, 17, 20, 4, 26, 2e8, Wednesday, 0, "UTC"}}, 65 } 66 67 var localtests = []TimeTest{ 68 {0, parsedTime{1969, December, 31, 16, 0, 0, 0, Wednesday, -8 * 60 * 60, "PST"}}, 69 {1221681866, parsedTime{2008, September, 17, 13, 4, 26, 0, Wednesday, -7 * 60 * 60, "PDT"}}, 70 {2159200800, parsedTime{2038, June, 3, 11, 0, 0, 0, Thursday, -7 * 60 * 60, "PDT"}}, 71 {2152173599, parsedTime{2038, March, 14, 1, 59, 59, 0, Sunday, -8 * 60 * 60, "PST"}}, 72 {2152173600, parsedTime{2038, March, 14, 3, 0, 0, 0, Sunday, -7 * 60 * 60, "PDT"}}, 73 {2152173601, parsedTime{2038, March, 14, 3, 0, 1, 0, Sunday, -7 * 60 * 60, "PDT"}}, 74 {2172733199, parsedTime{2038, November, 7, 1, 59, 59, 0, Sunday, -7 * 60 * 60, "PDT"}}, 75 {2172733200, parsedTime{2038, November, 7, 1, 0, 0, 0, Sunday, -8 * 60 * 60, "PST"}}, 76 {2172733201, parsedTime{2038, November, 7, 1, 0, 1, 0, Sunday, -8 * 60 * 60, "PST"}}, 77 } 78 79 var nanolocaltests = []TimeTest{ 80 {0, parsedTime{1969, December, 31, 16, 0, 0, 1e8, Wednesday, -8 * 60 * 60, "PST"}}, 81 {1221681866, parsedTime{2008, September, 17, 13, 4, 26, 3e8, Wednesday, -7 * 60 * 60, "PDT"}}, 82 } 83 84 func same(t Time, u *parsedTime) bool { 85 // Check aggregates. 86 year, month, day := t.Date() 87 hour, min, sec := t.Clock() 88 name, offset := t.Zone() 89 if year != u.Year || month != u.Month || day != u.Day || 90 hour != u.Hour || min != u.Minute || sec != u.Second || 91 name != u.Zone || offset != u.ZoneOffset { 92 return false 93 } 94 // Check individual entries. 95 return t.Year() == u.Year && 96 t.Month() == u.Month && 97 t.Day() == u.Day && 98 t.Hour() == u.Hour && 99 t.Minute() == u.Minute && 100 t.Second() == u.Second && 101 t.Nanosecond() == u.Nanosecond && 102 t.Weekday() == u.Weekday 103 } 104 105 func TestSecondsToUTC(t *testing.T) { 106 for _, test := range utctests { 107 sec := test.seconds 108 golden := &test.golden 109 tm := Unix(sec, 0).UTC() 110 newsec := tm.Unix() 111 if newsec != sec { 112 t.Errorf("SecondsToUTC(%d).Seconds() = %d", sec, newsec) 113 } 114 if !same(tm, golden) { 115 t.Errorf("SecondsToUTC(%d): // %#v", sec, tm) 116 t.Errorf(" want=%+v", *golden) 117 t.Errorf(" have=%v", tm.Format(RFC3339+" MST")) 118 } 119 } 120 } 121 122 func TestNanosecondsToUTC(t *testing.T) { 123 for _, test := range nanoutctests { 124 golden := &test.golden 125 nsec := test.seconds*1e9 + int64(golden.Nanosecond) 126 tm := Unix(0, nsec).UTC() 127 newnsec := tm.Unix()*1e9 + int64(tm.Nanosecond()) 128 if newnsec != nsec { 129 t.Errorf("NanosecondsToUTC(%d).Nanoseconds() = %d", nsec, newnsec) 130 } 131 if !same(tm, golden) { 132 t.Errorf("NanosecondsToUTC(%d):", nsec) 133 t.Errorf(" want=%+v", *golden) 134 t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) 135 } 136 } 137 } 138 139 func TestSecondsToLocalTime(t *testing.T) { 140 for _, test := range localtests { 141 sec := test.seconds 142 golden := &test.golden 143 tm := Unix(sec, 0) 144 newsec := tm.Unix() 145 if newsec != sec { 146 t.Errorf("SecondsToLocalTime(%d).Seconds() = %d", sec, newsec) 147 } 148 if !same(tm, golden) { 149 t.Errorf("SecondsToLocalTime(%d):", sec) 150 t.Errorf(" want=%+v", *golden) 151 t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) 152 } 153 } 154 } 155 156 func TestNanosecondsToLocalTime(t *testing.T) { 157 for _, test := range nanolocaltests { 158 golden := &test.golden 159 nsec := test.seconds*1e9 + int64(golden.Nanosecond) 160 tm := Unix(0, nsec) 161 newnsec := tm.Unix()*1e9 + int64(tm.Nanosecond()) 162 if newnsec != nsec { 163 t.Errorf("NanosecondsToLocalTime(%d).Seconds() = %d", nsec, newnsec) 164 } 165 if !same(tm, golden) { 166 t.Errorf("NanosecondsToLocalTime(%d):", nsec) 167 t.Errorf(" want=%+v", *golden) 168 t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) 169 } 170 } 171 } 172 173 func TestSecondsToUTCAndBack(t *testing.T) { 174 f := func(sec int64) bool { return Unix(sec, 0).UTC().Unix() == sec } 175 f32 := func(sec int32) bool { return f(int64(sec)) } 176 cfg := &quick.Config{MaxCount: 10000} 177 178 // Try a reasonable date first, then the huge ones. 179 if err := quick.Check(f32, cfg); err != nil { 180 t.Fatal(err) 181 } 182 if err := quick.Check(f, cfg); err != nil { 183 t.Fatal(err) 184 } 185 } 186 187 func TestNanosecondsToUTCAndBack(t *testing.T) { 188 f := func(nsec int64) bool { 189 t := Unix(0, nsec).UTC() 190 ns := t.Unix()*1e9 + int64(t.Nanosecond()) 191 return ns == nsec 192 } 193 f32 := func(nsec int32) bool { return f(int64(nsec)) } 194 cfg := &quick.Config{MaxCount: 10000} 195 196 // Try a small date first, then the large ones. (The span is only a few hundred years 197 // for nanoseconds in an int64.) 198 if err := quick.Check(f32, cfg); err != nil { 199 t.Fatal(err) 200 } 201 if err := quick.Check(f, cfg); err != nil { 202 t.Fatal(err) 203 } 204 } 205 206 func TestUnixMilli(t *testing.T) { 207 f := func(msec int64) bool { 208 t := UnixMilli(msec) 209 return t.UnixMilli() == msec 210 } 211 cfg := &quick.Config{MaxCount: 10000} 212 if err := quick.Check(f, cfg); err != nil { 213 t.Fatal(err) 214 } 215 } 216 217 func TestUnixMicro(t *testing.T) { 218 f := func(usec int64) bool { 219 t := UnixMicro(usec) 220 return t.UnixMicro() == usec 221 } 222 cfg := &quick.Config{MaxCount: 10000} 223 if err := quick.Check(f, cfg); err != nil { 224 t.Fatal(err) 225 } 226 } 227 228 // The time routines provide no way to get absolute time 229 // (seconds since zero), but we need it to compute the right 230 // answer for bizarre roundings like "to the nearest 3 ns". 231 // Compute as t - year1 = (t - 1970) + (1970 - 2001) + (2001 - 1). 232 // t - 1970 is returned by Unix and Nanosecond. 233 // 1970 - 2001 is -(31*365+8)*86400 = -978307200 seconds. 234 // 2001 - 1 is 2000*365.2425*86400 = 63113904000 seconds. 235 const unixToZero = -978307200 + 63113904000 236 237 // abs returns the absolute time stored in t, as seconds and nanoseconds. 238 func abs(t Time) (sec, nsec int64) { 239 unix := t.Unix() 240 nano := t.Nanosecond() 241 return unix + unixToZero, int64(nano) 242 } 243 244 // absString returns abs as a decimal string. 245 func absString(t Time) string { 246 sec, nsec := abs(t) 247 if sec < 0 { 248 sec = -sec 249 nsec = -nsec 250 if nsec < 0 { 251 nsec += 1e9 252 sec-- 253 } 254 return fmt.Sprintf("-%d%09d", sec, nsec) 255 } 256 return fmt.Sprintf("%d%09d", sec, nsec) 257 } 258 259 var truncateRoundTests = []struct { 260 t Time 261 d Duration 262 }{ 263 {Date(-1, January, 1, 12, 15, 30, 5e8, UTC), 3}, 264 {Date(-1, January, 1, 12, 15, 31, 5e8, UTC), 3}, 265 {Date(2012, January, 1, 12, 15, 30, 5e8, UTC), Second}, 266 {Date(2012, January, 1, 12, 15, 31, 5e8, UTC), Second}, 267 {Unix(-19012425939, 649146258), 7435029458905025217}, // 5.8*d rounds to 6*d, but .8*d+.8*d < 0 < d 268 } 269 270 func TestTruncateRound(t *testing.T) { 271 var ( 272 bsec = new(big.Int) 273 bnsec = new(big.Int) 274 bd = new(big.Int) 275 bt = new(big.Int) 276 br = new(big.Int) 277 bq = new(big.Int) 278 b1e9 = new(big.Int) 279 ) 280 281 b1e9.SetInt64(1e9) 282 283 testOne := func(ti, tns, di int64) bool { 284 t0 := Unix(ti, int64(tns)).UTC() 285 d := Duration(di) 286 if d < 0 { 287 d = -d 288 } 289 if d <= 0 { 290 d = 1 291 } 292 293 // Compute bt = absolute nanoseconds. 294 sec, nsec := abs(t0) 295 bsec.SetInt64(sec) 296 bnsec.SetInt64(nsec) 297 bt.Mul(bsec, b1e9) 298 bt.Add(bt, bnsec) 299 300 // Compute quotient and remainder mod d. 301 bd.SetInt64(int64(d)) 302 bq.DivMod(bt, bd, br) 303 304 // To truncate, subtract remainder. 305 // br is < d, so it fits in an int64. 306 r := br.Int64() 307 t1 := t0.Add(-Duration(r)) 308 309 // Check that time.Truncate works. 310 if trunc := t0.Truncate(d); trunc != t1 { 311 t.Errorf("Time.Truncate(%s, %s) = %s, want %s\n"+ 312 "%v trunc %v =\n%v want\n%v", 313 t0.Format(RFC3339Nano), d, trunc, t1.Format(RFC3339Nano), 314 absString(t0), int64(d), absString(trunc), absString(t1)) 315 return false 316 } 317 318 // To round, add d back if remainder r > d/2 or r == exactly d/2. 319 // The commented out code would round half to even instead of up, 320 // but that makes it time-zone dependent, which is a bit strange. 321 if r > int64(d)/2 || r+r == int64(d) /*&& bq.Bit(0) == 1*/ { 322 t1 = t1.Add(Duration(d)) 323 } 324 325 // Check that time.Round works. 326 if rnd := t0.Round(d); rnd != t1 { 327 t.Errorf("Time.Round(%s, %s) = %s, want %s\n"+ 328 "%v round %v =\n%v want\n%v", 329 t0.Format(RFC3339Nano), d, rnd, t1.Format(RFC3339Nano), 330 absString(t0), int64(d), absString(rnd), absString(t1)) 331 return false 332 } 333 return true 334 } 335 336 // manual test cases 337 for _, tt := range truncateRoundTests { 338 testOne(tt.t.Unix(), int64(tt.t.Nanosecond()), int64(tt.d)) 339 } 340 341 // exhaustive near 0 342 for i := 0; i < 100; i++ { 343 for j := 1; j < 100; j++ { 344 testOne(unixToZero, int64(i), int64(j)) 345 testOne(unixToZero, -int64(i), int64(j)) 346 if t.Failed() { 347 return 348 } 349 } 350 } 351 352 if t.Failed() { 353 return 354 } 355 356 // randomly generated test cases 357 cfg := &quick.Config{MaxCount: 100000} 358 if testing.Short() { 359 cfg.MaxCount = 1000 360 } 361 362 // divisors of Second 363 f1 := func(ti int64, tns int32, logdi int32) bool { 364 d := Duration(1) 365 a, b := uint(logdi%9), (logdi>>16)%9 366 d <<= a 367 for i := 0; i < int(b); i++ { 368 d *= 5 369 } 370 return testOne(ti, int64(tns), int64(d)) 371 } 372 quick.Check(f1, cfg) 373 374 // multiples of Second 375 f2 := func(ti int64, tns int32, di int32) bool { 376 d := Duration(di) * Second 377 if d < 0 { 378 d = -d 379 } 380 return testOne(ti, int64(tns), int64(d)) 381 } 382 quick.Check(f2, cfg) 383 384 // halfway cases 385 f3 := func(tns, di int64) bool { 386 di &= 0xfffffffe 387 if di == 0 { 388 di = 2 389 } 390 tns -= tns % di 391 if tns < 0 { 392 tns += di / 2 393 } else { 394 tns -= di / 2 395 } 396 return testOne(0, tns, di) 397 } 398 quick.Check(f3, cfg) 399 400 // full generality 401 f4 := func(ti int64, tns int32, di int64) bool { 402 return testOne(ti, int64(tns), di) 403 } 404 quick.Check(f4, cfg) 405 } 406 407 type ISOWeekTest struct { 408 year int // year 409 month, day int // month and day 410 yex int // expected year 411 wex int // expected week 412 } 413 414 var isoWeekTests = []ISOWeekTest{ 415 {1981, 1, 1, 1981, 1}, {1982, 1, 1, 1981, 53}, {1983, 1, 1, 1982, 52}, 416 {1984, 1, 1, 1983, 52}, {1985, 1, 1, 1985, 1}, {1986, 1, 1, 1986, 1}, 417 {1987, 1, 1, 1987, 1}, {1988, 1, 1, 1987, 53}, {1989, 1, 1, 1988, 52}, 418 {1990, 1, 1, 1990, 1}, {1991, 1, 1, 1991, 1}, {1992, 1, 1, 1992, 1}, 419 {1993, 1, 1, 1992, 53}, {1994, 1, 1, 1993, 52}, {1995, 1, 2, 1995, 1}, 420 {1996, 1, 1, 1996, 1}, {1996, 1, 7, 1996, 1}, {1996, 1, 8, 1996, 2}, 421 {1997, 1, 1, 1997, 1}, {1998, 1, 1, 1998, 1}, {1999, 1, 1, 1998, 53}, 422 {2000, 1, 1, 1999, 52}, {2001, 1, 1, 2001, 1}, {2002, 1, 1, 2002, 1}, 423 {2003, 1, 1, 2003, 1}, {2004, 1, 1, 2004, 1}, {2005, 1, 1, 2004, 53}, 424 {2006, 1, 1, 2005, 52}, {2007, 1, 1, 2007, 1}, {2008, 1, 1, 2008, 1}, 425 {2009, 1, 1, 2009, 1}, {2010, 1, 1, 2009, 53}, {2010, 1, 1, 2009, 53}, 426 {2011, 1, 1, 2010, 52}, {2011, 1, 2, 2010, 52}, {2011, 1, 3, 2011, 1}, 427 {2011, 1, 4, 2011, 1}, {2011, 1, 5, 2011, 1}, {2011, 1, 6, 2011, 1}, 428 {2011, 1, 7, 2011, 1}, {2011, 1, 8, 2011, 1}, {2011, 1, 9, 2011, 1}, 429 {2011, 1, 10, 2011, 2}, {2011, 1, 11, 2011, 2}, {2011, 6, 12, 2011, 23}, 430 {2011, 6, 13, 2011, 24}, {2011, 12, 25, 2011, 51}, {2011, 12, 26, 2011, 52}, 431 {2011, 12, 27, 2011, 52}, {2011, 12, 28, 2011, 52}, {2011, 12, 29, 2011, 52}, 432 {2011, 12, 30, 2011, 52}, {2011, 12, 31, 2011, 52}, {1995, 1, 1, 1994, 52}, 433 {2012, 1, 1, 2011, 52}, {2012, 1, 2, 2012, 1}, {2012, 1, 8, 2012, 1}, 434 {2012, 1, 9, 2012, 2}, {2012, 12, 23, 2012, 51}, {2012, 12, 24, 2012, 52}, 435 {2012, 12, 30, 2012, 52}, {2012, 12, 31, 2013, 1}, {2013, 1, 1, 2013, 1}, 436 {2013, 1, 6, 2013, 1}, {2013, 1, 7, 2013, 2}, {2013, 12, 22, 2013, 51}, 437 {2013, 12, 23, 2013, 52}, {2013, 12, 29, 2013, 52}, {2013, 12, 30, 2014, 1}, 438 {2014, 1, 1, 2014, 1}, {2014, 1, 5, 2014, 1}, {2014, 1, 6, 2014, 2}, 439 {2015, 1, 1, 2015, 1}, {2016, 1, 1, 2015, 53}, {2017, 1, 1, 2016, 52}, 440 {2018, 1, 1, 2018, 1}, {2019, 1, 1, 2019, 1}, {2020, 1, 1, 2020, 1}, 441 {2021, 1, 1, 2020, 53}, {2022, 1, 1, 2021, 52}, {2023, 1, 1, 2022, 52}, 442 {2024, 1, 1, 2024, 1}, {2025, 1, 1, 2025, 1}, {2026, 1, 1, 2026, 1}, 443 {2027, 1, 1, 2026, 53}, {2028, 1, 1, 2027, 52}, {2029, 1, 1, 2029, 1}, 444 {2030, 1, 1, 2030, 1}, {2031, 1, 1, 2031, 1}, {2032, 1, 1, 2032, 1}, 445 {2033, 1, 1, 2032, 53}, {2034, 1, 1, 2033, 52}, {2035, 1, 1, 2035, 1}, 446 {2036, 1, 1, 2036, 1}, {2037, 1, 1, 2037, 1}, {2038, 1, 1, 2037, 53}, 447 {2039, 1, 1, 2038, 52}, {2040, 1, 1, 2039, 52}, 448 } 449 450 func TestISOWeek(t *testing.T) { 451 // Selected dates and corner cases 452 for _, wt := range isoWeekTests { 453 dt := Date(wt.year, Month(wt.month), wt.day, 0, 0, 0, 0, UTC) 454 y, w := dt.ISOWeek() 455 if w != wt.wex || y != wt.yex { 456 t.Errorf("got %d/%d; expected %d/%d for %d-%02d-%02d", 457 y, w, wt.yex, wt.wex, wt.year, wt.month, wt.day) 458 } 459 } 460 461 // The only real invariant: Jan 04 is in week 1 462 for year := 1950; year < 2100; year++ { 463 if y, w := Date(year, January, 4, 0, 0, 0, 0, UTC).ISOWeek(); y != year || w != 1 { 464 t.Errorf("got %d/%d; expected %d/1 for Jan 04", y, w, year) 465 } 466 } 467 } 468 469 type YearDayTest struct { 470 year, month, day int 471 yday int 472 } 473 474 // Test YearDay in several different scenarios 475 // and corner cases 476 var yearDayTests = []YearDayTest{ 477 // Non-leap-year tests 478 {2007, 1, 1, 1}, 479 {2007, 1, 15, 15}, 480 {2007, 2, 1, 32}, 481 {2007, 2, 15, 46}, 482 {2007, 3, 1, 60}, 483 {2007, 3, 15, 74}, 484 {2007, 4, 1, 91}, 485 {2007, 12, 31, 365}, 486 487 // Leap-year tests 488 {2008, 1, 1, 1}, 489 {2008, 1, 15, 15}, 490 {2008, 2, 1, 32}, 491 {2008, 2, 15, 46}, 492 {2008, 3, 1, 61}, 493 {2008, 3, 15, 75}, 494 {2008, 4, 1, 92}, 495 {2008, 12, 31, 366}, 496 497 // Looks like leap-year (but isn't) tests 498 {1900, 1, 1, 1}, 499 {1900, 1, 15, 15}, 500 {1900, 2, 1, 32}, 501 {1900, 2, 15, 46}, 502 {1900, 3, 1, 60}, 503 {1900, 3, 15, 74}, 504 {1900, 4, 1, 91}, 505 {1900, 12, 31, 365}, 506 507 // Year one tests (non-leap) 508 {1, 1, 1, 1}, 509 {1, 1, 15, 15}, 510 {1, 2, 1, 32}, 511 {1, 2, 15, 46}, 512 {1, 3, 1, 60}, 513 {1, 3, 15, 74}, 514 {1, 4, 1, 91}, 515 {1, 12, 31, 365}, 516 517 // Year minus one tests (non-leap) 518 {-1, 1, 1, 1}, 519 {-1, 1, 15, 15}, 520 {-1, 2, 1, 32}, 521 {-1, 2, 15, 46}, 522 {-1, 3, 1, 60}, 523 {-1, 3, 15, 74}, 524 {-1, 4, 1, 91}, 525 {-1, 12, 31, 365}, 526 527 // 400 BC tests (leap-year) 528 {-400, 1, 1, 1}, 529 {-400, 1, 15, 15}, 530 {-400, 2, 1, 32}, 531 {-400, 2, 15, 46}, 532 {-400, 3, 1, 61}, 533 {-400, 3, 15, 75}, 534 {-400, 4, 1, 92}, 535 {-400, 12, 31, 366}, 536 537 // Special Cases 538 539 // Gregorian calendar change (no effect) 540 {1582, 10, 4, 277}, 541 {1582, 10, 15, 288}, 542 } 543 544 // Check to see if YearDay is location sensitive 545 var yearDayLocations = []*Location{ 546 FixedZone("UTC-8", -8*60*60), 547 FixedZone("UTC-4", -4*60*60), 548 UTC, 549 FixedZone("UTC+4", 4*60*60), 550 FixedZone("UTC+8", 8*60*60), 551 } 552 553 func TestYearDay(t *testing.T) { 554 for i, loc := range yearDayLocations { 555 for _, ydt := range yearDayTests { 556 dt := Date(ydt.year, Month(ydt.month), ydt.day, 0, 0, 0, 0, loc) 557 yday := dt.YearDay() 558 if yday != ydt.yday { 559 t.Errorf("Date(%d-%02d-%02d in %v).YearDay() = %d, want %d", 560 ydt.year, ydt.month, ydt.day, loc, yday, ydt.yday) 561 continue 562 } 563 564 if ydt.year < 0 || ydt.year > 9999 { 565 continue 566 } 567 f := fmt.Sprintf("%04d-%02d-%02d %03d %+.2d00", 568 ydt.year, ydt.month, ydt.day, ydt.yday, (i-2)*4) 569 dt1, err := Parse("2006-01-02 002 -0700", f) 570 if err != nil { 571 t.Errorf(`Parse("2006-01-02 002 -0700", %q): %v`, f, err) 572 continue 573 } 574 if !dt1.Equal(dt) { 575 t.Errorf(`Parse("2006-01-02 002 -0700", %q) = %v, want %v`, f, dt1, dt) 576 } 577 } 578 } 579 } 580 581 var durationTests = []struct { 582 str string 583 d Duration 584 }{ 585 {"0s", 0}, 586 {"1ns", 1 * Nanosecond}, 587 {"1.1µs", 1100 * Nanosecond}, 588 {"2.2ms", 2200 * Microsecond}, 589 {"3.3s", 3300 * Millisecond}, 590 {"4m5s", 4*Minute + 5*Second}, 591 {"4m5.001s", 4*Minute + 5001*Millisecond}, 592 {"5h6m7.001s", 5*Hour + 6*Minute + 7001*Millisecond}, 593 {"8m0.000000001s", 8*Minute + 1*Nanosecond}, 594 {"2562047h47m16.854775807s", 1<<63 - 1}, 595 {"-2562047h47m16.854775808s", -1 << 63}, 596 } 597 598 func TestDurationString(t *testing.T) { 599 for _, tt := range durationTests { 600 if str := tt.d.String(); str != tt.str { 601 t.Errorf("Duration(%d).String() = %s, want %s", int64(tt.d), str, tt.str) 602 } 603 if tt.d > 0 { 604 if str := (-tt.d).String(); str != "-"+tt.str { 605 t.Errorf("Duration(%d).String() = %s, want %s", int64(-tt.d), str, "-"+tt.str) 606 } 607 } 608 } 609 } 610 611 var dateTests = []struct { 612 year, month, day, hour, min, sec, nsec int 613 z *Location 614 unix int64 615 }{ 616 {2011, 11, 6, 1, 0, 0, 0, Local, 1320566400}, // 1:00:00 PDT 617 {2011, 11, 6, 1, 59, 59, 0, Local, 1320569999}, // 1:59:59 PDT 618 {2011, 11, 6, 2, 0, 0, 0, Local, 1320573600}, // 2:00:00 PST 619 620 {2011, 3, 13, 1, 0, 0, 0, Local, 1300006800}, // 1:00:00 PST 621 {2011, 3, 13, 1, 59, 59, 0, Local, 1300010399}, // 1:59:59 PST 622 {2011, 3, 13, 3, 0, 0, 0, Local, 1300010400}, // 3:00:00 PDT 623 {2011, 3, 13, 2, 30, 0, 0, Local, 1300008600}, // 2:30:00 PDT ≡ 1:30 PST 624 {2012, 12, 24, 0, 0, 0, 0, Local, 1356336000}, // Leap year 625 626 // Many names for Fri Nov 18 7:56:35 PST 2011 627 {2011, 11, 18, 7, 56, 35, 0, Local, 1321631795}, // Nov 18 7:56:35 628 {2011, 11, 19, -17, 56, 35, 0, Local, 1321631795}, // Nov 19 -17:56:35 629 {2011, 11, 17, 31, 56, 35, 0, Local, 1321631795}, // Nov 17 31:56:35 630 {2011, 11, 18, 6, 116, 35, 0, Local, 1321631795}, // Nov 18 6:116:35 631 {2011, 10, 49, 7, 56, 35, 0, Local, 1321631795}, // Oct 49 7:56:35 632 {2011, 11, 18, 7, 55, 95, 0, Local, 1321631795}, // Nov 18 7:55:95 633 {2011, 11, 18, 7, 56, 34, 1e9, Local, 1321631795}, // Nov 18 7:56:34 + 10⁹ns 634 {2011, 12, -12, 7, 56, 35, 0, Local, 1321631795}, // Dec -21 7:56:35 635 {2012, 1, -43, 7, 56, 35, 0, Local, 1321631795}, // Jan -52 7:56:35 2012 636 {2012, int(January - 2), 18, 7, 56, 35, 0, Local, 1321631795}, // (Jan-2) 18 7:56:35 2012 637 {2010, int(December + 11), 18, 7, 56, 35, 0, Local, 1321631795}, // (Dec+11) 18 7:56:35 2010 638 } 639 640 func TestDate(t *testing.T) { 641 for _, tt := range dateTests { 642 time := Date(tt.year, Month(tt.month), tt.day, tt.hour, tt.min, tt.sec, tt.nsec, tt.z) 643 want := Unix(tt.unix, 0) 644 if !time.Equal(want) { 645 t.Errorf("Date(%d, %d, %d, %d, %d, %d, %d, %s) = %v, want %v", 646 tt.year, tt.month, tt.day, tt.hour, tt.min, tt.sec, tt.nsec, tt.z, 647 time, want) 648 } 649 } 650 } 651 652 // Several ways of getting from 653 // Fri Nov 18 7:56:35 PST 2011 654 // to 655 // Thu Mar 19 7:56:35 PST 2016 656 var addDateTests = []struct { 657 years, months, days int 658 }{ 659 {4, 4, 1}, 660 {3, 16, 1}, 661 {3, 15, 30}, 662 {5, -6, -18 - 30 - 12}, 663 } 664 665 func TestAddDate(t *testing.T) { 666 t0 := Date(2011, 11, 18, 7, 56, 35, 0, UTC) 667 t1 := Date(2016, 3, 19, 7, 56, 35, 0, UTC) 668 for _, at := range addDateTests { 669 time := t0.AddDate(at.years, at.months, at.days) 670 if !time.Equal(t1) { 671 t.Errorf("AddDate(%d, %d, %d) = %v, want %v", 672 at.years, at.months, at.days, 673 time, t1) 674 } 675 } 676 } 677 678 var daysInTests = []struct { 679 year, month, di int 680 }{ 681 {2011, 1, 31}, // January, first month, 31 days 682 {2011, 2, 28}, // February, non-leap year, 28 days 683 {2012, 2, 29}, // February, leap year, 29 days 684 {2011, 6, 30}, // June, 30 days 685 {2011, 12, 31}, // December, last month, 31 days 686 } 687 688 func TestDaysIn(t *testing.T) { 689 // The daysIn function is not exported. 690 // Test the daysIn function via the `var DaysIn = daysIn` 691 // statement in the internal_test.go file. 692 for _, tt := range daysInTests { 693 di := DaysIn(Month(tt.month), tt.year) 694 if di != tt.di { 695 t.Errorf("got %d; expected %d for %d-%02d", 696 di, tt.di, tt.year, tt.month) 697 } 698 } 699 } 700 701 func TestAddToExactSecond(t *testing.T) { 702 // Add an amount to the current time to round it up to the next exact second. 703 // This test checks that the nsec field still lies within the range [0, 999999999]. 704 t1 := Now() 705 t2 := t1.Add(Second - Duration(t1.Nanosecond())) 706 sec := (t1.Second() + 1) % 60 707 if t2.Second() != sec || t2.Nanosecond() != 0 { 708 t.Errorf("sec = %d, nsec = %d, want sec = %d, nsec = 0", t2.Second(), t2.Nanosecond(), sec) 709 } 710 } 711 712 func equalTimeAndZone(a, b Time) bool { 713 aname, aoffset := a.Zone() 714 bname, boffset := b.Zone() 715 return a.Equal(b) && aoffset == boffset && aname == bname 716 } 717 718 var gobTests = []Time{ 719 Date(0, 1, 2, 3, 4, 5, 6, UTC), 720 Date(7, 8, 9, 10, 11, 12, 13, FixedZone("", 0)), 721 Unix(81985467080890095, 0x76543210), // Time.sec: 0x0123456789ABCDEF 722 {}, // nil location 723 Date(1, 2, 3, 4, 5, 6, 7, FixedZone("", 32767*60)), 724 Date(1, 2, 3, 4, 5, 6, 7, FixedZone("", -32768*60)), 725 } 726 727 func TestTimeGob(t *testing.T) { 728 var b bytes.Buffer 729 enc := gob.NewEncoder(&b) 730 dec := gob.NewDecoder(&b) 731 for _, tt := range gobTests { 732 var gobtt Time 733 if err := enc.Encode(&tt); err != nil { 734 t.Errorf("%v gob Encode error = %q, want nil", tt, err) 735 } else if err := dec.Decode(&gobtt); err != nil { 736 t.Errorf("%v gob Decode error = %q, want nil", tt, err) 737 } else if !equalTimeAndZone(gobtt, tt) { 738 t.Errorf("Decoded time = %v, want %v", gobtt, tt) 739 } 740 b.Reset() 741 } 742 } 743 744 var invalidEncodingTests = []struct { 745 bytes []byte 746 want string 747 }{ 748 {[]byte{}, "Time.UnmarshalBinary: no data"}, 749 {[]byte{0, 2, 3}, "Time.UnmarshalBinary: unsupported version"}, 750 {[]byte{1, 2, 3}, "Time.UnmarshalBinary: invalid length"}, 751 } 752 753 func TestInvalidTimeGob(t *testing.T) { 754 for _, tt := range invalidEncodingTests { 755 var ignored Time 756 err := ignored.GobDecode(tt.bytes) 757 if err == nil || err.Error() != tt.want { 758 t.Errorf("time.GobDecode(%#v) error = %v, want %v", tt.bytes, err, tt.want) 759 } 760 err = ignored.UnmarshalBinary(tt.bytes) 761 if err == nil || err.Error() != tt.want { 762 t.Errorf("time.UnmarshalBinary(%#v) error = %v, want %v", tt.bytes, err, tt.want) 763 } 764 } 765 } 766 767 var notEncodableTimes = []struct { 768 time Time 769 want string 770 }{ 771 {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", -1*60)), "Time.MarshalBinary: unexpected zone offset"}, 772 {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", -32769*60)), "Time.MarshalBinary: unexpected zone offset"}, 773 {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", 32768*60)), "Time.MarshalBinary: unexpected zone offset"}, 774 } 775 776 func TestNotGobEncodableTime(t *testing.T) { 777 for _, tt := range notEncodableTimes { 778 _, err := tt.time.GobEncode() 779 if err == nil || err.Error() != tt.want { 780 t.Errorf("%v GobEncode error = %v, want %v", tt.time, err, tt.want) 781 } 782 _, err = tt.time.MarshalBinary() 783 if err == nil || err.Error() != tt.want { 784 t.Errorf("%v MarshalBinary error = %v, want %v", tt.time, err, tt.want) 785 } 786 } 787 } 788 789 var jsonTests = []struct { 790 time Time 791 json string 792 }{ 793 {Date(9999, 4, 12, 23, 20, 50, 520*1e6, UTC), `"9999-04-12T23:20:50.52Z"`}, 794 {Date(1996, 12, 19, 16, 39, 57, 0, Local), `"1996-12-19T16:39:57-08:00"`}, 795 {Date(0, 1, 1, 0, 0, 0, 1, FixedZone("", 1*60)), `"0000-01-01T00:00:00.000000001+00:01"`}, 796 } 797 798 func TestTimeJSON(t *testing.T) { 799 for _, tt := range jsonTests { 800 var jsonTime Time 801 802 if jsonBytes, err := json.Marshal(tt.time); err != nil { 803 t.Errorf("%v json.Marshal error = %v, want nil", tt.time, err) 804 } else if string(jsonBytes) != tt.json { 805 t.Errorf("%v JSON = %#q, want %#q", tt.time, string(jsonBytes), tt.json) 806 } else if err = json.Unmarshal(jsonBytes, &jsonTime); err != nil { 807 t.Errorf("%v json.Unmarshal error = %v, want nil", tt.time, err) 808 } else if !equalTimeAndZone(jsonTime, tt.time) { 809 t.Errorf("Unmarshaled time = %v, want %v", jsonTime, tt.time) 810 } 811 } 812 } 813 814 func TestInvalidTimeJSON(t *testing.T) { 815 var tt Time 816 err := json.Unmarshal([]byte(`{"now is the time":"buddy"}`), &tt) 817 _, isParseErr := err.(*ParseError) 818 if !isParseErr { 819 t.Errorf("expected *time.ParseError unmarshaling JSON, got %v", err) 820 } 821 } 822 823 var notJSONEncodableTimes = []struct { 824 time Time 825 want string 826 }{ 827 {Date(10000, 1, 1, 0, 0, 0, 0, UTC), "Time.MarshalJSON: year outside of range [0,9999]"}, 828 {Date(-1, 1, 1, 0, 0, 0, 0, UTC), "Time.MarshalJSON: year outside of range [0,9999]"}, 829 } 830 831 func TestNotJSONEncodableTime(t *testing.T) { 832 for _, tt := range notJSONEncodableTimes { 833 _, err := tt.time.MarshalJSON() 834 if err == nil || err.Error() != tt.want { 835 t.Errorf("%v MarshalJSON error = %v, want %v", tt.time, err, tt.want) 836 } 837 } 838 } 839 840 var parseDurationTests = []struct { 841 in string 842 want Duration 843 }{ 844 // simple 845 {"0", 0}, 846 {"5s", 5 * Second}, 847 {"30s", 30 * Second}, 848 {"1478s", 1478 * Second}, 849 // sign 850 {"-5s", -5 * Second}, 851 {"+5s", 5 * Second}, 852 {"-0", 0}, 853 {"+0", 0}, 854 // decimal 855 {"5.0s", 5 * Second}, 856 {"5.6s", 5*Second + 600*Millisecond}, 857 {"5.s", 5 * Second}, 858 {".5s", 500 * Millisecond}, 859 {"1.0s", 1 * Second}, 860 {"1.00s", 1 * Second}, 861 {"1.004s", 1*Second + 4*Millisecond}, 862 {"1.0040s", 1*Second + 4*Millisecond}, 863 {"100.00100s", 100*Second + 1*Millisecond}, 864 // different units 865 {"10ns", 10 * Nanosecond}, 866 {"11us", 11 * Microsecond}, 867 {"12µs", 12 * Microsecond}, // U+00B5 868 {"12μs", 12 * Microsecond}, // U+03BC 869 {"13ms", 13 * Millisecond}, 870 {"14s", 14 * Second}, 871 {"15m", 15 * Minute}, 872 {"16h", 16 * Hour}, 873 // composite durations 874 {"3h30m", 3*Hour + 30*Minute}, 875 {"10.5s4m", 4*Minute + 10*Second + 500*Millisecond}, 876 {"-2m3.4s", -(2*Minute + 3*Second + 400*Millisecond)}, 877 {"1h2m3s4ms5us6ns", 1*Hour + 2*Minute + 3*Second + 4*Millisecond + 5*Microsecond + 6*Nanosecond}, 878 {"39h9m14.425s", 39*Hour + 9*Minute + 14*Second + 425*Millisecond}, 879 // large value 880 {"52763797000ns", 52763797000 * Nanosecond}, 881 // more than 9 digits after decimal point, see https://golang.org/issue/6617 882 {"0.3333333333333333333h", 20 * Minute}, 883 // 9007199254740993 = 1<<53+1 cannot be stored precisely in a float64 884 {"9007199254740993ns", (1<<53 + 1) * Nanosecond}, 885 // largest duration that can be represented by int64 in nanoseconds 886 {"9223372036854775807ns", (1<<63 - 1) * Nanosecond}, 887 {"9223372036854775.807us", (1<<63 - 1) * Nanosecond}, 888 {"9223372036s854ms775us807ns", (1<<63 - 1) * Nanosecond}, 889 {"-9223372036854775808ns", -1 << 63 * Nanosecond}, 890 {"-9223372036854775.808us", -1 << 63 * Nanosecond}, 891 {"-9223372036s854ms775us808ns", -1 << 63 * Nanosecond}, 892 // largest negative value 893 {"-9223372036854775808ns", -1 << 63 * Nanosecond}, 894 // largest negative round trip value, see https://golang.org/issue/48629 895 {"-2562047h47m16.854775808s", -1 << 63 * Nanosecond}, 896 // huge string; issue 15011. 897 {"0.100000000000000000000h", 6 * Minute}, 898 // This value tests the first overflow check in leadingFraction. 899 {"0.830103483285477580700h", 49*Minute + 48*Second + 372539827*Nanosecond}, 900 } 901 902 func TestParseDuration(t *testing.T) { 903 for _, tc := range parseDurationTests { 904 d, err := ParseDuration(tc.in) 905 if err != nil || d != tc.want { 906 t.Errorf("ParseDuration(%q) = %v, %v, want %v, nil", tc.in, d, err, tc.want) 907 } 908 } 909 } 910 911 var parseDurationErrorTests = []struct { 912 in string 913 expect string 914 }{ 915 // invalid 916 {"", `""`}, 917 {"3", `"3"`}, 918 {"-", `"-"`}, 919 {"s", `"s"`}, 920 {".", `"."`}, 921 {"-.", `"-."`}, 922 {".s", `".s"`}, 923 {"+.s", `"+.s"`}, 924 {"1d", `"1d"`}, 925 {"\x85\x85", `"\x85\x85"`}, 926 {"\xffff", `"\xffff"`}, 927 {"hello \xffff world", `"hello \xffff world"`}, 928 {"\uFFFD", `"\xef\xbf\xbd"`}, // utf8.RuneError 929 {"\uFFFD hello \uFFFD world", `"\xef\xbf\xbd hello \xef\xbf\xbd world"`}, // utf8.RuneError 930 // overflow 931 {"9223372036854775810ns", `"9223372036854775810ns"`}, 932 {"9223372036854775808ns", `"9223372036854775808ns"`}, 933 {"-9223372036854775809ns", `"-9223372036854775809ns"`}, 934 {"9223372036854776us", `"9223372036854776us"`}, 935 {"3000000h", `"3000000h"`}, 936 {"9223372036854775.808us", `"9223372036854775.808us"`}, 937 {"9223372036854ms775us808ns", `"9223372036854ms775us808ns"`}, 938 } 939 940 func TestParseDurationErrors(t *testing.T) { 941 for _, tc := range parseDurationErrorTests { 942 _, err := ParseDuration(tc.in) 943 if err == nil { 944 t.Errorf("ParseDuration(%q) = _, nil, want _, non-nil", tc.in) 945 } else if !strings.Contains(err.Error(), tc.expect) { 946 t.Errorf("ParseDuration(%q) = _, %q, error does not contain %q", tc.in, err, tc.expect) 947 } 948 } 949 } 950 951 func TestParseDurationRoundTrip(t *testing.T) { 952 // https://golang.org/issue/48629 953 max0 := Duration(math.MaxInt64) 954 max1, err := ParseDuration(max0.String()) 955 if err != nil || max0 != max1 { 956 t.Errorf("round-trip failed: %d => %q => %d, %v", max0, max0.String(), max1, err) 957 } 958 959 min0 := Duration(math.MinInt64) 960 min1, err := ParseDuration(min0.String()) 961 if err != nil || min0 != min1 { 962 t.Errorf("round-trip failed: %d => %q => %d, %v", min0, min0.String(), min1, err) 963 } 964 965 for i := 0; i < 100; i++ { 966 // Resolutions finer than milliseconds will result in 967 // imprecise round-trips. 968 d0 := Duration(rand.Int31()) * Millisecond 969 s := d0.String() 970 d1, err := ParseDuration(s) 971 if err != nil || d0 != d1 { 972 t.Errorf("round-trip failed: %d => %q => %d, %v", d0, s, d1, err) 973 } 974 } 975 } 976 977 // golang.org/issue/4622 978 func TestLocationRace(t *testing.T) { 979 ResetLocalOnceForTest() // reset the Once to trigger the race 980 981 c := make(chan string, 1) 982 go func() { 983 c <- Now().String() 984 }() 985 _ = Now().String() 986 <-c 987 Sleep(100 * Millisecond) 988 989 // Back to Los Angeles for subsequent tests: 990 ForceUSPacificForTesting() 991 } 992 993 var ( 994 t Time 995 u int64 996 ) 997 998 var mallocTest = []struct { 999 count int 1000 desc string 1001 fn func() 1002 }{ 1003 {0, `time.Now()`, func() { t = Now() }}, 1004 {0, `time.Now().UnixNano()`, func() { u = Now().UnixNano() }}, 1005 {0, `time.Now().UnixMilli()`, func() { u = Now().UnixMilli() }}, 1006 {0, `time.Now().UnixMicro()`, func() { u = Now().UnixMicro() }}, 1007 } 1008 1009 func TestCountMallocs(t *testing.T) { 1010 if testing.Short() { 1011 t.Skip("skipping malloc count in short mode") 1012 } 1013 if runtime.GOMAXPROCS(0) > 1 { 1014 t.Skip("skipping; GOMAXPROCS>1") 1015 } 1016 for _, mt := range mallocTest { 1017 allocs := int(testing.AllocsPerRun(100, mt.fn)) 1018 if allocs > mt.count { 1019 t.Errorf("%s: %d allocs, want %d", mt.desc, allocs, mt.count) 1020 } 1021 } 1022 } 1023 1024 func TestLoadFixed(t *testing.T) { 1025 // Issue 4064: handle locations without any zone transitions. 1026 loc, err := LoadLocation("Etc/GMT+1") 1027 if err != nil { 1028 t.Fatal(err) 1029 } 1030 1031 // The tzdata name Etc/GMT+1 uses "east is negative", 1032 // but Go and most other systems use "east is positive". 1033 // So GMT+1 corresponds to -3600 in the Go zone, not +3600. 1034 name, offset := Now().In(loc).Zone() 1035 // The zone abbreviation is "-01" since tzdata-2016g, and "GMT+1" 1036 // on earlier versions; we accept both. (Issue #17276). 1037 if !(name == "GMT+1" || name == "-01") || offset != -1*60*60 { 1038 t.Errorf("Now().In(loc).Zone() = %q, %d, want %q or %q, %d", 1039 name, offset, "GMT+1", "-01", -1*60*60) 1040 } 1041 } 1042 1043 const ( 1044 minDuration Duration = -1 << 63 1045 maxDuration Duration = 1<<63 - 1 1046 ) 1047 1048 var subTests = []struct { 1049 t Time 1050 u Time 1051 d Duration 1052 }{ 1053 {Time{}, Time{}, Duration(0)}, 1054 {Date(2009, 11, 23, 0, 0, 0, 1, UTC), Date(2009, 11, 23, 0, 0, 0, 0, UTC), Duration(1)}, 1055 {Date(2009, 11, 23, 0, 0, 0, 0, UTC), Date(2009, 11, 24, 0, 0, 0, 0, UTC), -24 * Hour}, 1056 {Date(2009, 11, 24, 0, 0, 0, 0, UTC), Date(2009, 11, 23, 0, 0, 0, 0, UTC), 24 * Hour}, 1057 {Date(-2009, 11, 24, 0, 0, 0, 0, UTC), Date(-2009, 11, 23, 0, 0, 0, 0, UTC), 24 * Hour}, 1058 {Time{}, Date(2109, 11, 23, 0, 0, 0, 0, UTC), Duration(minDuration)}, 1059 {Date(2109, 11, 23, 0, 0, 0, 0, UTC), Time{}, Duration(maxDuration)}, 1060 {Time{}, Date(-2109, 11, 23, 0, 0, 0, 0, UTC), Duration(maxDuration)}, 1061 {Date(-2109, 11, 23, 0, 0, 0, 0, UTC), Time{}, Duration(minDuration)}, 1062 {Date(2290, 1, 1, 0, 0, 0, 0, UTC), Date(2000, 1, 1, 0, 0, 0, 0, UTC), 290*365*24*Hour + 71*24*Hour}, 1063 {Date(2300, 1, 1, 0, 0, 0, 0, UTC), Date(2000, 1, 1, 0, 0, 0, 0, UTC), Duration(maxDuration)}, 1064 {Date(2000, 1, 1, 0, 0, 0, 0, UTC), Date(2290, 1, 1, 0, 0, 0, 0, UTC), -290*365*24*Hour - 71*24*Hour}, 1065 {Date(2000, 1, 1, 0, 0, 0, 0, UTC), Date(2300, 1, 1, 0, 0, 0, 0, UTC), Duration(minDuration)}, 1066 {Date(2311, 11, 26, 02, 16, 47, 63535996, UTC), Date(2019, 8, 16, 2, 29, 30, 268436582, UTC), 9223372036795099414}, 1067 {MinMonoTime, MaxMonoTime, minDuration}, 1068 {MaxMonoTime, MinMonoTime, maxDuration}, 1069 } 1070 1071 func TestSub(t *testing.T) { 1072 for i, st := range subTests { 1073 got := st.t.Sub(st.u) 1074 if got != st.d { 1075 t.Errorf("#%d: Sub(%v, %v): got %v; want %v", i, st.t, st.u, got, st.d) 1076 } 1077 } 1078 } 1079 1080 var nsDurationTests = []struct { 1081 d Duration 1082 want int64 1083 }{ 1084 {Duration(-1000), -1000}, 1085 {Duration(-1), -1}, 1086 {Duration(1), 1}, 1087 {Duration(1000), 1000}, 1088 } 1089 1090 func TestDurationNanoseconds(t *testing.T) { 1091 for _, tt := range nsDurationTests { 1092 if got := tt.d.Nanoseconds(); got != tt.want { 1093 t.Errorf("Duration(%s).Nanoseconds() = %d; want: %d", tt.d, got, tt.want) 1094 } 1095 } 1096 } 1097 1098 var usDurationTests = []struct { 1099 d Duration 1100 want int64 1101 }{ 1102 {Duration(-1000), -1}, 1103 {Duration(1000), 1}, 1104 } 1105 1106 func TestDurationMicroseconds(t *testing.T) { 1107 for _, tt := range usDurationTests { 1108 if got := tt.d.Microseconds(); got != tt.want { 1109 t.Errorf("Duration(%s).Microseconds() = %d; want: %d", tt.d, got, tt.want) 1110 } 1111 } 1112 } 1113 1114 var msDurationTests = []struct { 1115 d Duration 1116 want int64 1117 }{ 1118 {Duration(-1000000), -1}, 1119 {Duration(1000000), 1}, 1120 } 1121 1122 func TestDurationMilliseconds(t *testing.T) { 1123 for _, tt := range msDurationTests { 1124 if got := tt.d.Milliseconds(); got != tt.want { 1125 t.Errorf("Duration(%s).Milliseconds() = %d; want: %d", tt.d, got, tt.want) 1126 } 1127 } 1128 } 1129 1130 var secDurationTests = []struct { 1131 d Duration 1132 want float64 1133 }{ 1134 {Duration(300000000), 0.3}, 1135 } 1136 1137 func TestDurationSeconds(t *testing.T) { 1138 for _, tt := range secDurationTests { 1139 if got := tt.d.Seconds(); got != tt.want { 1140 t.Errorf("Duration(%s).Seconds() = %g; want: %g", tt.d, got, tt.want) 1141 } 1142 } 1143 } 1144 1145 var minDurationTests = []struct { 1146 d Duration 1147 want float64 1148 }{ 1149 {Duration(-60000000000), -1}, 1150 {Duration(-1), -1 / 60e9}, 1151 {Duration(1), 1 / 60e9}, 1152 {Duration(60000000000), 1}, 1153 {Duration(3000), 5e-8}, 1154 } 1155 1156 func TestDurationMinutes(t *testing.T) { 1157 for _, tt := range minDurationTests { 1158 if got := tt.d.Minutes(); got != tt.want { 1159 t.Errorf("Duration(%s).Minutes() = %g; want: %g", tt.d, got, tt.want) 1160 } 1161 } 1162 } 1163 1164 var hourDurationTests = []struct { 1165 d Duration 1166 want float64 1167 }{ 1168 {Duration(-3600000000000), -1}, 1169 {Duration(-1), -1 / 3600e9}, 1170 {Duration(1), 1 / 3600e9}, 1171 {Duration(3600000000000), 1}, 1172 {Duration(36), 1e-11}, 1173 } 1174 1175 func TestDurationHours(t *testing.T) { 1176 for _, tt := range hourDurationTests { 1177 if got := tt.d.Hours(); got != tt.want { 1178 t.Errorf("Duration(%s).Hours() = %g; want: %g", tt.d, got, tt.want) 1179 } 1180 } 1181 } 1182 1183 var durationTruncateTests = []struct { 1184 d Duration 1185 m Duration 1186 want Duration 1187 }{ 1188 {0, Second, 0}, 1189 {Minute, -7 * Second, Minute}, 1190 {Minute, 0, Minute}, 1191 {Minute, 1, Minute}, 1192 {Minute + 10*Second, 10 * Second, Minute + 10*Second}, 1193 {2*Minute + 10*Second, Minute, 2 * Minute}, 1194 {10*Minute + 10*Second, 3 * Minute, 9 * Minute}, 1195 {Minute + 10*Second, Minute + 10*Second + 1, 0}, 1196 {Minute + 10*Second, Hour, 0}, 1197 {-Minute, Second, -Minute}, 1198 {-10 * Minute, 3 * Minute, -9 * Minute}, 1199 {-10 * Minute, Hour, 0}, 1200 } 1201 1202 func TestDurationTruncate(t *testing.T) { 1203 for _, tt := range durationTruncateTests { 1204 if got := tt.d.Truncate(tt.m); got != tt.want { 1205 t.Errorf("Duration(%s).Truncate(%s) = %s; want: %s", tt.d, tt.m, got, tt.want) 1206 } 1207 } 1208 } 1209 1210 var durationRoundTests = []struct { 1211 d Duration 1212 m Duration 1213 want Duration 1214 }{ 1215 {0, Second, 0}, 1216 {Minute, -11 * Second, Minute}, 1217 {Minute, 0, Minute}, 1218 {Minute, 1, Minute}, 1219 {2 * Minute, Minute, 2 * Minute}, 1220 {2*Minute + 10*Second, Minute, 2 * Minute}, 1221 {2*Minute + 30*Second, Minute, 3 * Minute}, 1222 {2*Minute + 50*Second, Minute, 3 * Minute}, 1223 {-Minute, 1, -Minute}, 1224 {-2 * Minute, Minute, -2 * Minute}, 1225 {-2*Minute - 10*Second, Minute, -2 * Minute}, 1226 {-2*Minute - 30*Second, Minute, -3 * Minute}, 1227 {-2*Minute - 50*Second, Minute, -3 * Minute}, 1228 {8e18, 3e18, 9e18}, 1229 {9e18, 5e18, 1<<63 - 1}, 1230 {-8e18, 3e18, -9e18}, 1231 {-9e18, 5e18, -1 << 63}, 1232 {3<<61 - 1, 3 << 61, 3 << 61}, 1233 } 1234 1235 func TestDurationRound(t *testing.T) { 1236 for _, tt := range durationRoundTests { 1237 if got := tt.d.Round(tt.m); got != tt.want { 1238 t.Errorf("Duration(%s).Round(%s) = %s; want: %s", tt.d, tt.m, got, tt.want) 1239 } 1240 } 1241 } 1242 1243 var defaultLocTests = []struct { 1244 name string 1245 f func(t1, t2 Time) bool 1246 }{ 1247 {"After", func(t1, t2 Time) bool { return t1.After(t2) == t2.After(t1) }}, 1248 {"Before", func(t1, t2 Time) bool { return t1.Before(t2) == t2.Before(t1) }}, 1249 {"Equal", func(t1, t2 Time) bool { return t1.Equal(t2) == t2.Equal(t1) }}, 1250 1251 {"IsZero", func(t1, t2 Time) bool { return t1.IsZero() == t2.IsZero() }}, 1252 {"Date", func(t1, t2 Time) bool { 1253 a1, b1, c1 := t1.Date() 1254 a2, b2, c2 := t2.Date() 1255 return a1 == a2 && b1 == b2 && c1 == c2 1256 }}, 1257 {"Year", func(t1, t2 Time) bool { return t1.Year() == t2.Year() }}, 1258 {"Month", func(t1, t2 Time) bool { return t1.Month() == t2.Month() }}, 1259 {"Day", func(t1, t2 Time) bool { return t1.Day() == t2.Day() }}, 1260 {"Weekday", func(t1, t2 Time) bool { return t1.Weekday() == t2.Weekday() }}, 1261 {"ISOWeek", func(t1, t2 Time) bool { 1262 a1, b1 := t1.ISOWeek() 1263 a2, b2 := t2.ISOWeek() 1264 return a1 == a2 && b1 == b2 1265 }}, 1266 {"Clock", func(t1, t2 Time) bool { 1267 a1, b1, c1 := t1.Clock() 1268 a2, b2, c2 := t2.Clock() 1269 return a1 == a2 && b1 == b2 && c1 == c2 1270 }}, 1271 {"Hour", func(t1, t2 Time) bool { return t1.Hour() == t2.Hour() }}, 1272 {"Minute", func(t1, t2 Time) bool { return t1.Minute() == t2.Minute() }}, 1273 {"Second", func(t1, t2 Time) bool { return t1.Second() == t2.Second() }}, 1274 {"Nanosecond", func(t1, t2 Time) bool { return t1.Hour() == t2.Hour() }}, 1275 {"YearDay", func(t1, t2 Time) bool { return t1.YearDay() == t2.YearDay() }}, 1276 1277 // Using Equal since Add don't modify loc using "==" will cause a fail 1278 {"Add", func(t1, t2 Time) bool { return t1.Add(Hour).Equal(t2.Add(Hour)) }}, 1279 {"Sub", func(t1, t2 Time) bool { return t1.Sub(t2) == t2.Sub(t1) }}, 1280 1281 //Original caus for this test case bug 15852 1282 {"AddDate", func(t1, t2 Time) bool { return t1.AddDate(1991, 9, 3) == t2.AddDate(1991, 9, 3) }}, 1283 1284 {"UTC", func(t1, t2 Time) bool { return t1.UTC() == t2.UTC() }}, 1285 {"Local", func(t1, t2 Time) bool { return t1.Local() == t2.Local() }}, 1286 {"In", func(t1, t2 Time) bool { return t1.In(UTC) == t2.In(UTC) }}, 1287 1288 {"Local", func(t1, t2 Time) bool { return t1.Local() == t2.Local() }}, 1289 {"Zone", func(t1, t2 Time) bool { 1290 a1, b1 := t1.Zone() 1291 a2, b2 := t2.Zone() 1292 return a1 == a2 && b1 == b2 1293 }}, 1294 1295 {"Unix", func(t1, t2 Time) bool { return t1.Unix() == t2.Unix() }}, 1296 {"UnixNano", func(t1, t2 Time) bool { return t1.UnixNano() == t2.UnixNano() }}, 1297 {"UnixMilli", func(t1, t2 Time) bool { return t1.UnixMilli() == t2.UnixMilli() }}, 1298 {"UnixMicro", func(t1, t2 Time) bool { return t1.UnixMicro() == t2.UnixMicro() }}, 1299 1300 {"MarshalBinary", func(t1, t2 Time) bool { 1301 a1, b1 := t1.MarshalBinary() 1302 a2, b2 := t2.MarshalBinary() 1303 return bytes.Equal(a1, a2) && b1 == b2 1304 }}, 1305 {"GobEncode", func(t1, t2 Time) bool { 1306 a1, b1 := t1.GobEncode() 1307 a2, b2 := t2.GobEncode() 1308 return bytes.Equal(a1, a2) && b1 == b2 1309 }}, 1310 {"MarshalJSON", func(t1, t2 Time) bool { 1311 a1, b1 := t1.MarshalJSON() 1312 a2, b2 := t2.MarshalJSON() 1313 return bytes.Equal(a1, a2) && b1 == b2 1314 }}, 1315 {"MarshalText", func(t1, t2 Time) bool { 1316 a1, b1 := t1.MarshalText() 1317 a2, b2 := t2.MarshalText() 1318 return bytes.Equal(a1, a2) && b1 == b2 1319 }}, 1320 1321 {"Truncate", func(t1, t2 Time) bool { return t1.Truncate(Hour).Equal(t2.Truncate(Hour)) }}, 1322 {"Round", func(t1, t2 Time) bool { return t1.Round(Hour).Equal(t2.Round(Hour)) }}, 1323 1324 {"== Time{}", func(t1, t2 Time) bool { return (t1 == Time{}) == (t2 == Time{}) }}, 1325 } 1326 1327 func TestDefaultLoc(t *testing.T) { 1328 // Verify that all of Time's methods behave identically if loc is set to 1329 // nil or UTC. 1330 for _, tt := range defaultLocTests { 1331 t1 := Time{} 1332 t2 := Time{}.UTC() 1333 if !tt.f(t1, t2) { 1334 t.Errorf("Time{} and Time{}.UTC() behave differently for %s", tt.name) 1335 } 1336 } 1337 } 1338 1339 func BenchmarkNow(b *testing.B) { 1340 for i := 0; i < b.N; i++ { 1341 t = Now() 1342 } 1343 } 1344 1345 func BenchmarkNowUnixNano(b *testing.B) { 1346 for i := 0; i < b.N; i++ { 1347 u = Now().UnixNano() 1348 } 1349 } 1350 1351 func BenchmarkNowUnixMilli(b *testing.B) { 1352 for i := 0; i < b.N; i++ { 1353 u = Now().UnixMilli() 1354 } 1355 } 1356 1357 func BenchmarkNowUnixMicro(b *testing.B) { 1358 for i := 0; i < b.N; i++ { 1359 u = Now().UnixMicro() 1360 } 1361 } 1362 1363 func BenchmarkFormat(b *testing.B) { 1364 t := Unix(1265346057, 0) 1365 for i := 0; i < b.N; i++ { 1366 t.Format("Mon Jan 2 15:04:05 2006") 1367 } 1368 } 1369 1370 func BenchmarkFormatNow(b *testing.B) { 1371 // Like BenchmarkFormat, but easier, because the time zone 1372 // lookup cache is optimized for the present. 1373 t := Now() 1374 for i := 0; i < b.N; i++ { 1375 t.Format("Mon Jan 2 15:04:05 2006") 1376 } 1377 } 1378 1379 func BenchmarkMarshalJSON(b *testing.B) { 1380 t := Now() 1381 for i := 0; i < b.N; i++ { 1382 t.MarshalJSON() 1383 } 1384 } 1385 1386 func BenchmarkMarshalText(b *testing.B) { 1387 t := Now() 1388 for i := 0; i < b.N; i++ { 1389 t.MarshalText() 1390 } 1391 } 1392 1393 func BenchmarkParse(b *testing.B) { 1394 for i := 0; i < b.N; i++ { 1395 Parse(ANSIC, "Mon Jan 2 15:04:05 2006") 1396 } 1397 } 1398 1399 func BenchmarkParseDuration(b *testing.B) { 1400 for i := 0; i < b.N; i++ { 1401 ParseDuration("9007199254.740993ms") 1402 ParseDuration("9007199254740993ns") 1403 } 1404 } 1405 1406 func BenchmarkHour(b *testing.B) { 1407 t := Now() 1408 for i := 0; i < b.N; i++ { 1409 _ = t.Hour() 1410 } 1411 } 1412 1413 func BenchmarkSecond(b *testing.B) { 1414 t := Now() 1415 for i := 0; i < b.N; i++ { 1416 _ = t.Second() 1417 } 1418 } 1419 1420 func BenchmarkYear(b *testing.B) { 1421 t := Now() 1422 for i := 0; i < b.N; i++ { 1423 _ = t.Year() 1424 } 1425 } 1426 1427 func BenchmarkDay(b *testing.B) { 1428 t := Now() 1429 for i := 0; i < b.N; i++ { 1430 _ = t.Day() 1431 } 1432 } 1433 1434 func BenchmarkISOWeek(b *testing.B) { 1435 t := Now() 1436 for i := 0; i < b.N; i++ { 1437 _, _ = t.ISOWeek() 1438 } 1439 } 1440 1441 func TestMarshalBinaryZeroTime(t *testing.T) { 1442 t0 := Time{} 1443 enc, err := t0.MarshalBinary() 1444 if err != nil { 1445 t.Fatal(err) 1446 } 1447 t1 := Now() // not zero 1448 if err := t1.UnmarshalBinary(enc); err != nil { 1449 t.Fatal(err) 1450 } 1451 if t1 != t0 { 1452 t.Errorf("t0=%#v\nt1=%#v\nwant identical structures", t0, t1) 1453 } 1454 } 1455 1456 func TestMarshalBinaryVersion2(t *testing.T) { 1457 t0, err := Parse(RFC3339, "1880-01-01T00:00:00Z") 1458 if err != nil { 1459 t.Errorf("Failed to parse time, error = %v", err) 1460 } 1461 loc, err := LoadLocation("US/Eastern") 1462 if err != nil { 1463 t.Errorf("Failed to load location, error = %v", err) 1464 } 1465 t1 := t0.In(loc) 1466 b, err := t1.MarshalBinary() 1467 if err != nil { 1468 t.Errorf("Failed to Marshal, error = %v", err) 1469 } 1470 1471 t2 := Time{} 1472 err = t2.UnmarshalBinary(b) 1473 if err != nil { 1474 t.Errorf("Failed to Unmarshal, error = %v", err) 1475 } 1476 1477 if !(t0.Equal(t1) && t1.Equal(t2)) { 1478 if !t0.Equal(t1) { 1479 t.Errorf("The result t1: %+v after Marshal is not matched original t0: %+v", t1, t0) 1480 } 1481 if !t1.Equal(t2) { 1482 t.Errorf("The result t2: %+v after Unmarshal is not matched original t1: %+v", t2, t1) 1483 } 1484 } 1485 } 1486 1487 // Issue 17720: Zero value of time.Month fails to print 1488 func TestZeroMonthString(t *testing.T) { 1489 if got, want := Month(0).String(), "%!Month(0)"; got != want { 1490 t.Errorf("zero month = %q; want %q", got, want) 1491 } 1492 } 1493 1494 // Issue 24692: Out of range weekday panics 1495 func TestWeekdayString(t *testing.T) { 1496 if got, want := Weekday(Tuesday).String(), "Tuesday"; got != want { 1497 t.Errorf("Tuesday weekday = %q; want %q", got, want) 1498 } 1499 if got, want := Weekday(14).String(), "%!Weekday(14)"; got != want { 1500 t.Errorf("14th weekday = %q; want %q", got, want) 1501 } 1502 } 1503 1504 func TestReadFileLimit(t *testing.T) { 1505 const zero = "/dev/zero" 1506 if _, err := os.Stat(zero); err != nil { 1507 t.Skip("skipping test without a /dev/zero") 1508 } 1509 _, err := ReadFile(zero) 1510 if err == nil || !strings.Contains(err.Error(), "is too large") { 1511 t.Errorf("readFile(%q) error = %v; want error containing 'is too large'", zero, err) 1512 } 1513 } 1514 1515 // Issue 25686: hard crash on concurrent timer access. 1516 // Issue 37400: panic with "racy use of timers" 1517 // This test deliberately invokes a race condition. 1518 // We are testing that we don't crash with "fatal error: panic holding locks", 1519 // and that we also don't panic. 1520 func TestConcurrentTimerReset(t *testing.T) { 1521 const goroutines = 8 1522 const tries = 1000 1523 var wg sync.WaitGroup 1524 wg.Add(goroutines) 1525 timer := NewTimer(Hour) 1526 for i := 0; i < goroutines; i++ { 1527 go func(i int) { 1528 defer wg.Done() 1529 for j := 0; j < tries; j++ { 1530 timer.Reset(Hour + Duration(i*j)) 1531 } 1532 }(i) 1533 } 1534 wg.Wait() 1535 } 1536 1537 // Issue 37400: panic with "racy use of timers". 1538 func TestConcurrentTimerResetStop(t *testing.T) { 1539 const goroutines = 8 1540 const tries = 1000 1541 var wg sync.WaitGroup 1542 wg.Add(goroutines * 2) 1543 timer := NewTimer(Hour) 1544 for i := 0; i < goroutines; i++ { 1545 go func(i int) { 1546 defer wg.Done() 1547 for j := 0; j < tries; j++ { 1548 timer.Reset(Hour + Duration(i*j)) 1549 } 1550 }(i) 1551 go func(i int) { 1552 defer wg.Done() 1553 timer.Stop() 1554 }(i) 1555 } 1556 wg.Wait() 1557 } 1558 1559 func TestTimeIsDST(t *testing.T) { 1560 ForceZipFileForTesting(true) 1561 defer ForceZipFileForTesting(false) 1562 1563 tzWithDST, err := LoadLocation("Australia/Sydney") 1564 if err != nil { 1565 t.Fatalf("could not load tz 'Australia/Sydney': %v", err) 1566 } 1567 tzWithoutDST, err := LoadLocation("Australia/Brisbane") 1568 if err != nil { 1569 t.Fatalf("could not load tz 'Australia/Brisbane': %v", err) 1570 } 1571 tzFixed := FixedZone("FIXED_TIME", 12345) 1572 1573 tests := [...]struct { 1574 time Time 1575 want bool 1576 }{ 1577 0: {Date(2009, 1, 1, 12, 0, 0, 0, UTC), false}, 1578 1: {Date(2009, 6, 1, 12, 0, 0, 0, UTC), false}, 1579 2: {Date(2009, 1, 1, 12, 0, 0, 0, tzWithDST), true}, 1580 3: {Date(2009, 6, 1, 12, 0, 0, 0, tzWithDST), false}, 1581 4: {Date(2009, 1, 1, 12, 0, 0, 0, tzWithoutDST), false}, 1582 5: {Date(2009, 6, 1, 12, 0, 0, 0, tzWithoutDST), false}, 1583 6: {Date(2009, 1, 1, 12, 0, 0, 0, tzFixed), false}, 1584 7: {Date(2009, 6, 1, 12, 0, 0, 0, tzFixed), false}, 1585 } 1586 1587 for i, tt := range tests { 1588 got := tt.time.IsDST() 1589 if got != tt.want { 1590 t.Errorf("#%d:: (%#v).IsDST()=%t, want %t", i, tt.time.Format(RFC3339), got, tt.want) 1591 } 1592 } 1593 } 1594 1595 func TestTimeAddSecOverflow(t *testing.T) { 1596 // Test it with positive delta. 1597 var maxInt64 int64 = 1<<63 - 1 1598 timeExt := maxInt64 - UnixToInternal - 50 1599 notMonoTime := Unix(timeExt, 0) 1600 for i := int64(0); i < 100; i++ { 1601 sec := notMonoTime.Unix() 1602 notMonoTime = notMonoTime.Add(Duration(i * 1e9)) 1603 if newSec := notMonoTime.Unix(); newSec != sec+i && newSec+UnixToInternal != maxInt64 { 1604 t.Fatalf("time ext: %d overflows with positive delta, overflow threshold: %d", newSec, maxInt64) 1605 } 1606 } 1607 1608 // Test it with negative delta. 1609 maxInt64 = -maxInt64 1610 notMonoTime = NotMonoNegativeTime 1611 for i := int64(0); i > -100; i-- { 1612 sec := notMonoTime.Unix() 1613 notMonoTime = notMonoTime.Add(Duration(i * 1e9)) 1614 if newSec := notMonoTime.Unix(); newSec != sec+i && newSec+UnixToInternal != maxInt64 { 1615 t.Fatalf("time ext: %d overflows with positive delta, overflow threshold: %d", newSec, maxInt64) 1616 } 1617 } 1618 } 1619 1620 // Issue 49284: time: ParseInLocation incorrectly because of Daylight Saving Time 1621 func TestTimeWithZoneTransition(t *testing.T) { 1622 ForceZipFileForTesting(true) 1623 defer ForceZipFileForTesting(false) 1624 1625 loc, err := LoadLocation("Asia/Shanghai") 1626 if err != nil { 1627 t.Fatal(err) 1628 } 1629 1630 tests := [...]struct { 1631 give Time 1632 want Time 1633 }{ 1634 // 14 Apr 1991 - Daylight Saving Time Started 1635 // When time of "Asia/Shanghai" was about to reach 1636 // Sunday, 14 April 1991, 02:00:00 clocks were turned forward 1 hour to 1637 // Sunday, 14 April 1991, 03:00:00 local daylight time instead. 1638 // The UTC time was 13 April 1991, 18:00:00 1639 0: {Date(1991, April, 13, 17, 50, 0, 0, loc), Date(1991, April, 13, 9, 50, 0, 0, UTC)}, 1640 1: {Date(1991, April, 13, 18, 0, 0, 0, loc), Date(1991, April, 13, 10, 0, 0, 0, UTC)}, 1641 2: {Date(1991, April, 14, 1, 50, 0, 0, loc), Date(1991, April, 13, 17, 50, 0, 0, UTC)}, 1642 3: {Date(1991, April, 14, 3, 0, 0, 0, loc), Date(1991, April, 13, 18, 0, 0, 0, UTC)}, 1643 1644 // 15 Sep 1991 - Daylight Saving Time Ended 1645 // When local daylight time of "Asia/Shanghai" was about to reach 1646 // Sunday, 15 September 1991, 02:00:00 clocks were turned backward 1 hour to 1647 // Sunday, 15 September 1991, 01:00:00 local standard time instead. 1648 // The UTC time was 14 September 1991, 17:00:00 1649 4: {Date(1991, September, 14, 16, 50, 0, 0, loc), Date(1991, September, 14, 7, 50, 0, 0, UTC)}, 1650 5: {Date(1991, September, 14, 17, 0, 0, 0, loc), Date(1991, September, 14, 8, 0, 0, 0, UTC)}, 1651 6: {Date(1991, September, 15, 0, 50, 0, 0, loc), Date(1991, September, 14, 15, 50, 0, 0, UTC)}, 1652 7: {Date(1991, September, 15, 2, 00, 0, 0, loc), Date(1991, September, 14, 18, 00, 0, 0, UTC)}, 1653 } 1654 1655 for i, tt := range tests { 1656 if !tt.give.Equal(tt.want) { 1657 t.Errorf("#%d:: %#v is not equal to %#v", i, tt.give.Format(RFC3339), tt.want.Format(RFC3339)) 1658 } 1659 } 1660 }