From 47ab3d4a42e9ab51c465c4322d2ec233f6324e6b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:16:40 +0200 Subject: Adding upstream version 1.18.10. Signed-off-by: Daniel Baumann --- src/time/time_test.go | 1660 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1660 insertions(+) create mode 100644 src/time/time_test.go (limited to 'src/time/time_test.go') diff --git a/src/time/time_test.go b/src/time/time_test.go new file mode 100644 index 0000000..6a40496 --- /dev/null +++ b/src/time/time_test.go @@ -0,0 +1,1660 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package time_test + +import ( + "bytes" + "encoding/gob" + "encoding/json" + "fmt" + "math" + "math/big" + "math/rand" + "os" + "runtime" + "strings" + "sync" + "testing" + "testing/quick" + . "time" +) + +// We should be in PST/PDT, but if the time zone files are missing we +// won't be. The purpose of this test is to at least explain why some of +// the subsequent tests fail. +func TestZoneData(t *testing.T) { + lt := Now() + // PST is 8 hours west, PDT is 7 hours west. We could use the name but it's not unique. + if name, off := lt.Zone(); off != -8*60*60 && off != -7*60*60 { + t.Errorf("Unable to find US Pacific time zone data for testing; time zone is %q offset %d", name, off) + t.Error("Likely problem: the time zone files have not been installed.") + } +} + +// parsedTime is the struct representing a parsed time value. +type parsedTime struct { + Year int + Month Month + Day int + Hour, Minute, Second int // 15:04:05 is 15, 4, 5. + Nanosecond int // Fractional second. + Weekday Weekday + ZoneOffset int // seconds east of UTC, e.g. -7*60*60 for -0700 + Zone string // e.g., "MST" +} + +type TimeTest struct { + seconds int64 + golden parsedTime +} + +var utctests = []TimeTest{ + {0, parsedTime{1970, January, 1, 0, 0, 0, 0, Thursday, 0, "UTC"}}, + {1221681866, parsedTime{2008, September, 17, 20, 4, 26, 0, Wednesday, 0, "UTC"}}, + {-1221681866, parsedTime{1931, April, 16, 3, 55, 34, 0, Thursday, 0, "UTC"}}, + {-11644473600, parsedTime{1601, January, 1, 0, 0, 0, 0, Monday, 0, "UTC"}}, + {599529660, parsedTime{1988, December, 31, 0, 1, 0, 0, Saturday, 0, "UTC"}}, + {978220860, parsedTime{2000, December, 31, 0, 1, 0, 0, Sunday, 0, "UTC"}}, +} + +var nanoutctests = []TimeTest{ + {0, parsedTime{1970, January, 1, 0, 0, 0, 1e8, Thursday, 0, "UTC"}}, + {1221681866, parsedTime{2008, September, 17, 20, 4, 26, 2e8, Wednesday, 0, "UTC"}}, +} + +var localtests = []TimeTest{ + {0, parsedTime{1969, December, 31, 16, 0, 0, 0, Wednesday, -8 * 60 * 60, "PST"}}, + {1221681866, parsedTime{2008, September, 17, 13, 4, 26, 0, Wednesday, -7 * 60 * 60, "PDT"}}, + {2159200800, parsedTime{2038, June, 3, 11, 0, 0, 0, Thursday, -7 * 60 * 60, "PDT"}}, + {2152173599, parsedTime{2038, March, 14, 1, 59, 59, 0, Sunday, -8 * 60 * 60, "PST"}}, + {2152173600, parsedTime{2038, March, 14, 3, 0, 0, 0, Sunday, -7 * 60 * 60, "PDT"}}, + {2152173601, parsedTime{2038, March, 14, 3, 0, 1, 0, Sunday, -7 * 60 * 60, "PDT"}}, + {2172733199, parsedTime{2038, November, 7, 1, 59, 59, 0, Sunday, -7 * 60 * 60, "PDT"}}, + {2172733200, parsedTime{2038, November, 7, 1, 0, 0, 0, Sunday, -8 * 60 * 60, "PST"}}, + {2172733201, parsedTime{2038, November, 7, 1, 0, 1, 0, Sunday, -8 * 60 * 60, "PST"}}, +} + +var nanolocaltests = []TimeTest{ + {0, parsedTime{1969, December, 31, 16, 0, 0, 1e8, Wednesday, -8 * 60 * 60, "PST"}}, + {1221681866, parsedTime{2008, September, 17, 13, 4, 26, 3e8, Wednesday, -7 * 60 * 60, "PDT"}}, +} + +func same(t Time, u *parsedTime) bool { + // Check aggregates. + year, month, day := t.Date() + hour, min, sec := t.Clock() + name, offset := t.Zone() + if year != u.Year || month != u.Month || day != u.Day || + hour != u.Hour || min != u.Minute || sec != u.Second || + name != u.Zone || offset != u.ZoneOffset { + return false + } + // Check individual entries. + return t.Year() == u.Year && + t.Month() == u.Month && + t.Day() == u.Day && + t.Hour() == u.Hour && + t.Minute() == u.Minute && + t.Second() == u.Second && + t.Nanosecond() == u.Nanosecond && + t.Weekday() == u.Weekday +} + +func TestSecondsToUTC(t *testing.T) { + for _, test := range utctests { + sec := test.seconds + golden := &test.golden + tm := Unix(sec, 0).UTC() + newsec := tm.Unix() + if newsec != sec { + t.Errorf("SecondsToUTC(%d).Seconds() = %d", sec, newsec) + } + if !same(tm, golden) { + t.Errorf("SecondsToUTC(%d): // %#v", sec, tm) + t.Errorf(" want=%+v", *golden) + t.Errorf(" have=%v", tm.Format(RFC3339+" MST")) + } + } +} + +func TestNanosecondsToUTC(t *testing.T) { + for _, test := range nanoutctests { + golden := &test.golden + nsec := test.seconds*1e9 + int64(golden.Nanosecond) + tm := Unix(0, nsec).UTC() + newnsec := tm.Unix()*1e9 + int64(tm.Nanosecond()) + if newnsec != nsec { + t.Errorf("NanosecondsToUTC(%d).Nanoseconds() = %d", nsec, newnsec) + } + if !same(tm, golden) { + t.Errorf("NanosecondsToUTC(%d):", nsec) + t.Errorf(" want=%+v", *golden) + t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) + } + } +} + +func TestSecondsToLocalTime(t *testing.T) { + for _, test := range localtests { + sec := test.seconds + golden := &test.golden + tm := Unix(sec, 0) + newsec := tm.Unix() + if newsec != sec { + t.Errorf("SecondsToLocalTime(%d).Seconds() = %d", sec, newsec) + } + if !same(tm, golden) { + t.Errorf("SecondsToLocalTime(%d):", sec) + t.Errorf(" want=%+v", *golden) + t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) + } + } +} + +func TestNanosecondsToLocalTime(t *testing.T) { + for _, test := range nanolocaltests { + golden := &test.golden + nsec := test.seconds*1e9 + int64(golden.Nanosecond) + tm := Unix(0, nsec) + newnsec := tm.Unix()*1e9 + int64(tm.Nanosecond()) + if newnsec != nsec { + t.Errorf("NanosecondsToLocalTime(%d).Seconds() = %d", nsec, newnsec) + } + if !same(tm, golden) { + t.Errorf("NanosecondsToLocalTime(%d):", nsec) + t.Errorf(" want=%+v", *golden) + t.Errorf(" have=%+v", tm.Format(RFC3339+" MST")) + } + } +} + +func TestSecondsToUTCAndBack(t *testing.T) { + f := func(sec int64) bool { return Unix(sec, 0).UTC().Unix() == sec } + f32 := func(sec int32) bool { return f(int64(sec)) } + cfg := &quick.Config{MaxCount: 10000} + + // Try a reasonable date first, then the huge ones. + if err := quick.Check(f32, cfg); err != nil { + t.Fatal(err) + } + if err := quick.Check(f, cfg); err != nil { + t.Fatal(err) + } +} + +func TestNanosecondsToUTCAndBack(t *testing.T) { + f := func(nsec int64) bool { + t := Unix(0, nsec).UTC() + ns := t.Unix()*1e9 + int64(t.Nanosecond()) + return ns == nsec + } + f32 := func(nsec int32) bool { return f(int64(nsec)) } + cfg := &quick.Config{MaxCount: 10000} + + // Try a small date first, then the large ones. (The span is only a few hundred years + // for nanoseconds in an int64.) + if err := quick.Check(f32, cfg); err != nil { + t.Fatal(err) + } + if err := quick.Check(f, cfg); err != nil { + t.Fatal(err) + } +} + +func TestUnixMilli(t *testing.T) { + f := func(msec int64) bool { + t := UnixMilli(msec) + return t.UnixMilli() == msec + } + cfg := &quick.Config{MaxCount: 10000} + if err := quick.Check(f, cfg); err != nil { + t.Fatal(err) + } +} + +func TestUnixMicro(t *testing.T) { + f := func(usec int64) bool { + t := UnixMicro(usec) + return t.UnixMicro() == usec + } + cfg := &quick.Config{MaxCount: 10000} + if err := quick.Check(f, cfg); err != nil { + t.Fatal(err) + } +} + +// The time routines provide no way to get absolute time +// (seconds since zero), but we need it to compute the right +// answer for bizarre roundings like "to the nearest 3 ns". +// Compute as t - year1 = (t - 1970) + (1970 - 2001) + (2001 - 1). +// t - 1970 is returned by Unix and Nanosecond. +// 1970 - 2001 is -(31*365+8)*86400 = -978307200 seconds. +// 2001 - 1 is 2000*365.2425*86400 = 63113904000 seconds. +const unixToZero = -978307200 + 63113904000 + +// abs returns the absolute time stored in t, as seconds and nanoseconds. +func abs(t Time) (sec, nsec int64) { + unix := t.Unix() + nano := t.Nanosecond() + return unix + unixToZero, int64(nano) +} + +// absString returns abs as a decimal string. +func absString(t Time) string { + sec, nsec := abs(t) + if sec < 0 { + sec = -sec + nsec = -nsec + if nsec < 0 { + nsec += 1e9 + sec-- + } + return fmt.Sprintf("-%d%09d", sec, nsec) + } + return fmt.Sprintf("%d%09d", sec, nsec) +} + +var truncateRoundTests = []struct { + t Time + d Duration +}{ + {Date(-1, January, 1, 12, 15, 30, 5e8, UTC), 3}, + {Date(-1, January, 1, 12, 15, 31, 5e8, UTC), 3}, + {Date(2012, January, 1, 12, 15, 30, 5e8, UTC), Second}, + {Date(2012, January, 1, 12, 15, 31, 5e8, UTC), Second}, + {Unix(-19012425939, 649146258), 7435029458905025217}, // 5.8*d rounds to 6*d, but .8*d+.8*d < 0 < d +} + +func TestTruncateRound(t *testing.T) { + var ( + bsec = new(big.Int) + bnsec = new(big.Int) + bd = new(big.Int) + bt = new(big.Int) + br = new(big.Int) + bq = new(big.Int) + b1e9 = new(big.Int) + ) + + b1e9.SetInt64(1e9) + + testOne := func(ti, tns, di int64) bool { + t0 := Unix(ti, int64(tns)).UTC() + d := Duration(di) + if d < 0 { + d = -d + } + if d <= 0 { + d = 1 + } + + // Compute bt = absolute nanoseconds. + sec, nsec := abs(t0) + bsec.SetInt64(sec) + bnsec.SetInt64(nsec) + bt.Mul(bsec, b1e9) + bt.Add(bt, bnsec) + + // Compute quotient and remainder mod d. + bd.SetInt64(int64(d)) + bq.DivMod(bt, bd, br) + + // To truncate, subtract remainder. + // br is < d, so it fits in an int64. + r := br.Int64() + t1 := t0.Add(-Duration(r)) + + // Check that time.Truncate works. + if trunc := t0.Truncate(d); trunc != t1 { + t.Errorf("Time.Truncate(%s, %s) = %s, want %s\n"+ + "%v trunc %v =\n%v want\n%v", + t0.Format(RFC3339Nano), d, trunc, t1.Format(RFC3339Nano), + absString(t0), int64(d), absString(trunc), absString(t1)) + return false + } + + // To round, add d back if remainder r > d/2 or r == exactly d/2. + // The commented out code would round half to even instead of up, + // but that makes it time-zone dependent, which is a bit strange. + if r > int64(d)/2 || r+r == int64(d) /*&& bq.Bit(0) == 1*/ { + t1 = t1.Add(Duration(d)) + } + + // Check that time.Round works. + if rnd := t0.Round(d); rnd != t1 { + t.Errorf("Time.Round(%s, %s) = %s, want %s\n"+ + "%v round %v =\n%v want\n%v", + t0.Format(RFC3339Nano), d, rnd, t1.Format(RFC3339Nano), + absString(t0), int64(d), absString(rnd), absString(t1)) + return false + } + return true + } + + // manual test cases + for _, tt := range truncateRoundTests { + testOne(tt.t.Unix(), int64(tt.t.Nanosecond()), int64(tt.d)) + } + + // exhaustive near 0 + for i := 0; i < 100; i++ { + for j := 1; j < 100; j++ { + testOne(unixToZero, int64(i), int64(j)) + testOne(unixToZero, -int64(i), int64(j)) + if t.Failed() { + return + } + } + } + + if t.Failed() { + return + } + + // randomly generated test cases + cfg := &quick.Config{MaxCount: 100000} + if testing.Short() { + cfg.MaxCount = 1000 + } + + // divisors of Second + f1 := func(ti int64, tns int32, logdi int32) bool { + d := Duration(1) + a, b := uint(logdi%9), (logdi>>16)%9 + d <<= a + for i := 0; i < int(b); i++ { + d *= 5 + } + return testOne(ti, int64(tns), int64(d)) + } + quick.Check(f1, cfg) + + // multiples of Second + f2 := func(ti int64, tns int32, di int32) bool { + d := Duration(di) * Second + if d < 0 { + d = -d + } + return testOne(ti, int64(tns), int64(d)) + } + quick.Check(f2, cfg) + + // halfway cases + f3 := func(tns, di int64) bool { + di &= 0xfffffffe + if di == 0 { + di = 2 + } + tns -= tns % di + if tns < 0 { + tns += di / 2 + } else { + tns -= di / 2 + } + return testOne(0, tns, di) + } + quick.Check(f3, cfg) + + // full generality + f4 := func(ti int64, tns int32, di int64) bool { + return testOne(ti, int64(tns), di) + } + quick.Check(f4, cfg) +} + +type ISOWeekTest struct { + year int // year + month, day int // month and day + yex int // expected year + wex int // expected week +} + +var isoWeekTests = []ISOWeekTest{ + {1981, 1, 1, 1981, 1}, {1982, 1, 1, 1981, 53}, {1983, 1, 1, 1982, 52}, + {1984, 1, 1, 1983, 52}, {1985, 1, 1, 1985, 1}, {1986, 1, 1, 1986, 1}, + {1987, 1, 1, 1987, 1}, {1988, 1, 1, 1987, 53}, {1989, 1, 1, 1988, 52}, + {1990, 1, 1, 1990, 1}, {1991, 1, 1, 1991, 1}, {1992, 1, 1, 1992, 1}, + {1993, 1, 1, 1992, 53}, {1994, 1, 1, 1993, 52}, {1995, 1, 2, 1995, 1}, + {1996, 1, 1, 1996, 1}, {1996, 1, 7, 1996, 1}, {1996, 1, 8, 1996, 2}, + {1997, 1, 1, 1997, 1}, {1998, 1, 1, 1998, 1}, {1999, 1, 1, 1998, 53}, + {2000, 1, 1, 1999, 52}, {2001, 1, 1, 2001, 1}, {2002, 1, 1, 2002, 1}, + {2003, 1, 1, 2003, 1}, {2004, 1, 1, 2004, 1}, {2005, 1, 1, 2004, 53}, + {2006, 1, 1, 2005, 52}, {2007, 1, 1, 2007, 1}, {2008, 1, 1, 2008, 1}, + {2009, 1, 1, 2009, 1}, {2010, 1, 1, 2009, 53}, {2010, 1, 1, 2009, 53}, + {2011, 1, 1, 2010, 52}, {2011, 1, 2, 2010, 52}, {2011, 1, 3, 2011, 1}, + {2011, 1, 4, 2011, 1}, {2011, 1, 5, 2011, 1}, {2011, 1, 6, 2011, 1}, + {2011, 1, 7, 2011, 1}, {2011, 1, 8, 2011, 1}, {2011, 1, 9, 2011, 1}, + {2011, 1, 10, 2011, 2}, {2011, 1, 11, 2011, 2}, {2011, 6, 12, 2011, 23}, + {2011, 6, 13, 2011, 24}, {2011, 12, 25, 2011, 51}, {2011, 12, 26, 2011, 52}, + {2011, 12, 27, 2011, 52}, {2011, 12, 28, 2011, 52}, {2011, 12, 29, 2011, 52}, + {2011, 12, 30, 2011, 52}, {2011, 12, 31, 2011, 52}, {1995, 1, 1, 1994, 52}, + {2012, 1, 1, 2011, 52}, {2012, 1, 2, 2012, 1}, {2012, 1, 8, 2012, 1}, + {2012, 1, 9, 2012, 2}, {2012, 12, 23, 2012, 51}, {2012, 12, 24, 2012, 52}, + {2012, 12, 30, 2012, 52}, {2012, 12, 31, 2013, 1}, {2013, 1, 1, 2013, 1}, + {2013, 1, 6, 2013, 1}, {2013, 1, 7, 2013, 2}, {2013, 12, 22, 2013, 51}, + {2013, 12, 23, 2013, 52}, {2013, 12, 29, 2013, 52}, {2013, 12, 30, 2014, 1}, + {2014, 1, 1, 2014, 1}, {2014, 1, 5, 2014, 1}, {2014, 1, 6, 2014, 2}, + {2015, 1, 1, 2015, 1}, {2016, 1, 1, 2015, 53}, {2017, 1, 1, 2016, 52}, + {2018, 1, 1, 2018, 1}, {2019, 1, 1, 2019, 1}, {2020, 1, 1, 2020, 1}, + {2021, 1, 1, 2020, 53}, {2022, 1, 1, 2021, 52}, {2023, 1, 1, 2022, 52}, + {2024, 1, 1, 2024, 1}, {2025, 1, 1, 2025, 1}, {2026, 1, 1, 2026, 1}, + {2027, 1, 1, 2026, 53}, {2028, 1, 1, 2027, 52}, {2029, 1, 1, 2029, 1}, + {2030, 1, 1, 2030, 1}, {2031, 1, 1, 2031, 1}, {2032, 1, 1, 2032, 1}, + {2033, 1, 1, 2032, 53}, {2034, 1, 1, 2033, 52}, {2035, 1, 1, 2035, 1}, + {2036, 1, 1, 2036, 1}, {2037, 1, 1, 2037, 1}, {2038, 1, 1, 2037, 53}, + {2039, 1, 1, 2038, 52}, {2040, 1, 1, 2039, 52}, +} + +func TestISOWeek(t *testing.T) { + // Selected dates and corner cases + for _, wt := range isoWeekTests { + dt := Date(wt.year, Month(wt.month), wt.day, 0, 0, 0, 0, UTC) + y, w := dt.ISOWeek() + if w != wt.wex || y != wt.yex { + t.Errorf("got %d/%d; expected %d/%d for %d-%02d-%02d", + y, w, wt.yex, wt.wex, wt.year, wt.month, wt.day) + } + } + + // The only real invariant: Jan 04 is in week 1 + for year := 1950; year < 2100; year++ { + if y, w := Date(year, January, 4, 0, 0, 0, 0, UTC).ISOWeek(); y != year || w != 1 { + t.Errorf("got %d/%d; expected %d/1 for Jan 04", y, w, year) + } + } +} + +type YearDayTest struct { + year, month, day int + yday int +} + +// Test YearDay in several different scenarios +// and corner cases +var yearDayTests = []YearDayTest{ + // Non-leap-year tests + {2007, 1, 1, 1}, + {2007, 1, 15, 15}, + {2007, 2, 1, 32}, + {2007, 2, 15, 46}, + {2007, 3, 1, 60}, + {2007, 3, 15, 74}, + {2007, 4, 1, 91}, + {2007, 12, 31, 365}, + + // Leap-year tests + {2008, 1, 1, 1}, + {2008, 1, 15, 15}, + {2008, 2, 1, 32}, + {2008, 2, 15, 46}, + {2008, 3, 1, 61}, + {2008, 3, 15, 75}, + {2008, 4, 1, 92}, + {2008, 12, 31, 366}, + + // Looks like leap-year (but isn't) tests + {1900, 1, 1, 1}, + {1900, 1, 15, 15}, + {1900, 2, 1, 32}, + {1900, 2, 15, 46}, + {1900, 3, 1, 60}, + {1900, 3, 15, 74}, + {1900, 4, 1, 91}, + {1900, 12, 31, 365}, + + // Year one tests (non-leap) + {1, 1, 1, 1}, + {1, 1, 15, 15}, + {1, 2, 1, 32}, + {1, 2, 15, 46}, + {1, 3, 1, 60}, + {1, 3, 15, 74}, + {1, 4, 1, 91}, + {1, 12, 31, 365}, + + // Year minus one tests (non-leap) + {-1, 1, 1, 1}, + {-1, 1, 15, 15}, + {-1, 2, 1, 32}, + {-1, 2, 15, 46}, + {-1, 3, 1, 60}, + {-1, 3, 15, 74}, + {-1, 4, 1, 91}, + {-1, 12, 31, 365}, + + // 400 BC tests (leap-year) + {-400, 1, 1, 1}, + {-400, 1, 15, 15}, + {-400, 2, 1, 32}, + {-400, 2, 15, 46}, + {-400, 3, 1, 61}, + {-400, 3, 15, 75}, + {-400, 4, 1, 92}, + {-400, 12, 31, 366}, + + // Special Cases + + // Gregorian calendar change (no effect) + {1582, 10, 4, 277}, + {1582, 10, 15, 288}, +} + +// Check to see if YearDay is location sensitive +var yearDayLocations = []*Location{ + FixedZone("UTC-8", -8*60*60), + FixedZone("UTC-4", -4*60*60), + UTC, + FixedZone("UTC+4", 4*60*60), + FixedZone("UTC+8", 8*60*60), +} + +func TestYearDay(t *testing.T) { + for i, loc := range yearDayLocations { + for _, ydt := range yearDayTests { + dt := Date(ydt.year, Month(ydt.month), ydt.day, 0, 0, 0, 0, loc) + yday := dt.YearDay() + if yday != ydt.yday { + t.Errorf("Date(%d-%02d-%02d in %v).YearDay() = %d, want %d", + ydt.year, ydt.month, ydt.day, loc, yday, ydt.yday) + continue + } + + if ydt.year < 0 || ydt.year > 9999 { + continue + } + f := fmt.Sprintf("%04d-%02d-%02d %03d %+.2d00", + ydt.year, ydt.month, ydt.day, ydt.yday, (i-2)*4) + dt1, err := Parse("2006-01-02 002 -0700", f) + if err != nil { + t.Errorf(`Parse("2006-01-02 002 -0700", %q): %v`, f, err) + continue + } + if !dt1.Equal(dt) { + t.Errorf(`Parse("2006-01-02 002 -0700", %q) = %v, want %v`, f, dt1, dt) + } + } + } +} + +var durationTests = []struct { + str string + d Duration +}{ + {"0s", 0}, + {"1ns", 1 * Nanosecond}, + {"1.1µs", 1100 * Nanosecond}, + {"2.2ms", 2200 * Microsecond}, + {"3.3s", 3300 * Millisecond}, + {"4m5s", 4*Minute + 5*Second}, + {"4m5.001s", 4*Minute + 5001*Millisecond}, + {"5h6m7.001s", 5*Hour + 6*Minute + 7001*Millisecond}, + {"8m0.000000001s", 8*Minute + 1*Nanosecond}, + {"2562047h47m16.854775807s", 1<<63 - 1}, + {"-2562047h47m16.854775808s", -1 << 63}, +} + +func TestDurationString(t *testing.T) { + for _, tt := range durationTests { + if str := tt.d.String(); str != tt.str { + t.Errorf("Duration(%d).String() = %s, want %s", int64(tt.d), str, tt.str) + } + if tt.d > 0 { + if str := (-tt.d).String(); str != "-"+tt.str { + t.Errorf("Duration(%d).String() = %s, want %s", int64(-tt.d), str, "-"+tt.str) + } + } + } +} + +var dateTests = []struct { + year, month, day, hour, min, sec, nsec int + z *Location + unix int64 +}{ + {2011, 11, 6, 1, 0, 0, 0, Local, 1320566400}, // 1:00:00 PDT + {2011, 11, 6, 1, 59, 59, 0, Local, 1320569999}, // 1:59:59 PDT + {2011, 11, 6, 2, 0, 0, 0, Local, 1320573600}, // 2:00:00 PST + + {2011, 3, 13, 1, 0, 0, 0, Local, 1300006800}, // 1:00:00 PST + {2011, 3, 13, 1, 59, 59, 0, Local, 1300010399}, // 1:59:59 PST + {2011, 3, 13, 3, 0, 0, 0, Local, 1300010400}, // 3:00:00 PDT + {2011, 3, 13, 2, 30, 0, 0, Local, 1300008600}, // 2:30:00 PDT ≡ 1:30 PST + {2012, 12, 24, 0, 0, 0, 0, Local, 1356336000}, // Leap year + + // Many names for Fri Nov 18 7:56:35 PST 2011 + {2011, 11, 18, 7, 56, 35, 0, Local, 1321631795}, // Nov 18 7:56:35 + {2011, 11, 19, -17, 56, 35, 0, Local, 1321631795}, // Nov 19 -17:56:35 + {2011, 11, 17, 31, 56, 35, 0, Local, 1321631795}, // Nov 17 31:56:35 + {2011, 11, 18, 6, 116, 35, 0, Local, 1321631795}, // Nov 18 6:116:35 + {2011, 10, 49, 7, 56, 35, 0, Local, 1321631795}, // Oct 49 7:56:35 + {2011, 11, 18, 7, 55, 95, 0, Local, 1321631795}, // Nov 18 7:55:95 + {2011, 11, 18, 7, 56, 34, 1e9, Local, 1321631795}, // Nov 18 7:56:34 + 10⁹ns + {2011, 12, -12, 7, 56, 35, 0, Local, 1321631795}, // Dec -21 7:56:35 + {2012, 1, -43, 7, 56, 35, 0, Local, 1321631795}, // Jan -52 7:56:35 2012 + {2012, int(January - 2), 18, 7, 56, 35, 0, Local, 1321631795}, // (Jan-2) 18 7:56:35 2012 + {2010, int(December + 11), 18, 7, 56, 35, 0, Local, 1321631795}, // (Dec+11) 18 7:56:35 2010 +} + +func TestDate(t *testing.T) { + for _, tt := range dateTests { + time := Date(tt.year, Month(tt.month), tt.day, tt.hour, tt.min, tt.sec, tt.nsec, tt.z) + want := Unix(tt.unix, 0) + if !time.Equal(want) { + t.Errorf("Date(%d, %d, %d, %d, %d, %d, %d, %s) = %v, want %v", + tt.year, tt.month, tt.day, tt.hour, tt.min, tt.sec, tt.nsec, tt.z, + time, want) + } + } +} + +// Several ways of getting from +// Fri Nov 18 7:56:35 PST 2011 +// to +// Thu Mar 19 7:56:35 PST 2016 +var addDateTests = []struct { + years, months, days int +}{ + {4, 4, 1}, + {3, 16, 1}, + {3, 15, 30}, + {5, -6, -18 - 30 - 12}, +} + +func TestAddDate(t *testing.T) { + t0 := Date(2011, 11, 18, 7, 56, 35, 0, UTC) + t1 := Date(2016, 3, 19, 7, 56, 35, 0, UTC) + for _, at := range addDateTests { + time := t0.AddDate(at.years, at.months, at.days) + if !time.Equal(t1) { + t.Errorf("AddDate(%d, %d, %d) = %v, want %v", + at.years, at.months, at.days, + time, t1) + } + } +} + +var daysInTests = []struct { + year, month, di int +}{ + {2011, 1, 31}, // January, first month, 31 days + {2011, 2, 28}, // February, non-leap year, 28 days + {2012, 2, 29}, // February, leap year, 29 days + {2011, 6, 30}, // June, 30 days + {2011, 12, 31}, // December, last month, 31 days +} + +func TestDaysIn(t *testing.T) { + // The daysIn function is not exported. + // Test the daysIn function via the `var DaysIn = daysIn` + // statement in the internal_test.go file. + for _, tt := range daysInTests { + di := DaysIn(Month(tt.month), tt.year) + if di != tt.di { + t.Errorf("got %d; expected %d for %d-%02d", + di, tt.di, tt.year, tt.month) + } + } +} + +func TestAddToExactSecond(t *testing.T) { + // Add an amount to the current time to round it up to the next exact second. + // This test checks that the nsec field still lies within the range [0, 999999999]. + t1 := Now() + t2 := t1.Add(Second - Duration(t1.Nanosecond())) + sec := (t1.Second() + 1) % 60 + if t2.Second() != sec || t2.Nanosecond() != 0 { + t.Errorf("sec = %d, nsec = %d, want sec = %d, nsec = 0", t2.Second(), t2.Nanosecond(), sec) + } +} + +func equalTimeAndZone(a, b Time) bool { + aname, aoffset := a.Zone() + bname, boffset := b.Zone() + return a.Equal(b) && aoffset == boffset && aname == bname +} + +var gobTests = []Time{ + Date(0, 1, 2, 3, 4, 5, 6, UTC), + Date(7, 8, 9, 10, 11, 12, 13, FixedZone("", 0)), + Unix(81985467080890095, 0x76543210), // Time.sec: 0x0123456789ABCDEF + {}, // nil location + Date(1, 2, 3, 4, 5, 6, 7, FixedZone("", 32767*60)), + Date(1, 2, 3, 4, 5, 6, 7, FixedZone("", -32768*60)), +} + +func TestTimeGob(t *testing.T) { + var b bytes.Buffer + enc := gob.NewEncoder(&b) + dec := gob.NewDecoder(&b) + for _, tt := range gobTests { + var gobtt Time + if err := enc.Encode(&tt); err != nil { + t.Errorf("%v gob Encode error = %q, want nil", tt, err) + } else if err := dec.Decode(&gobtt); err != nil { + t.Errorf("%v gob Decode error = %q, want nil", tt, err) + } else if !equalTimeAndZone(gobtt, tt) { + t.Errorf("Decoded time = %v, want %v", gobtt, tt) + } + b.Reset() + } +} + +var invalidEncodingTests = []struct { + bytes []byte + want string +}{ + {[]byte{}, "Time.UnmarshalBinary: no data"}, + {[]byte{0, 2, 3}, "Time.UnmarshalBinary: unsupported version"}, + {[]byte{1, 2, 3}, "Time.UnmarshalBinary: invalid length"}, +} + +func TestInvalidTimeGob(t *testing.T) { + for _, tt := range invalidEncodingTests { + var ignored Time + err := ignored.GobDecode(tt.bytes) + if err == nil || err.Error() != tt.want { + t.Errorf("time.GobDecode(%#v) error = %v, want %v", tt.bytes, err, tt.want) + } + err = ignored.UnmarshalBinary(tt.bytes) + if err == nil || err.Error() != tt.want { + t.Errorf("time.UnmarshalBinary(%#v) error = %v, want %v", tt.bytes, err, tt.want) + } + } +} + +var notEncodableTimes = []struct { + time Time + want string +}{ + {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", -1*60)), "Time.MarshalBinary: unexpected zone offset"}, + {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", -32769*60)), "Time.MarshalBinary: unexpected zone offset"}, + {Date(0, 1, 2, 3, 4, 5, 6, FixedZone("", 32768*60)), "Time.MarshalBinary: unexpected zone offset"}, +} + +func TestNotGobEncodableTime(t *testing.T) { + for _, tt := range notEncodableTimes { + _, err := tt.time.GobEncode() + if err == nil || err.Error() != tt.want { + t.Errorf("%v GobEncode error = %v, want %v", tt.time, err, tt.want) + } + _, err = tt.time.MarshalBinary() + if err == nil || err.Error() != tt.want { + t.Errorf("%v MarshalBinary error = %v, want %v", tt.time, err, tt.want) + } + } +} + +var jsonTests = []struct { + time Time + json string +}{ + {Date(9999, 4, 12, 23, 20, 50, 520*1e6, UTC), `"9999-04-12T23:20:50.52Z"`}, + {Date(1996, 12, 19, 16, 39, 57, 0, Local), `"1996-12-19T16:39:57-08:00"`}, + {Date(0, 1, 1, 0, 0, 0, 1, FixedZone("", 1*60)), `"0000-01-01T00:00:00.000000001+00:01"`}, +} + +func TestTimeJSON(t *testing.T) { + for _, tt := range jsonTests { + var jsonTime Time + + if jsonBytes, err := json.Marshal(tt.time); err != nil { + t.Errorf("%v json.Marshal error = %v, want nil", tt.time, err) + } else if string(jsonBytes) != tt.json { + t.Errorf("%v JSON = %#q, want %#q", tt.time, string(jsonBytes), tt.json) + } else if err = json.Unmarshal(jsonBytes, &jsonTime); err != nil { + t.Errorf("%v json.Unmarshal error = %v, want nil", tt.time, err) + } else if !equalTimeAndZone(jsonTime, tt.time) { + t.Errorf("Unmarshaled time = %v, want %v", jsonTime, tt.time) + } + } +} + +func TestInvalidTimeJSON(t *testing.T) { + var tt Time + err := json.Unmarshal([]byte(`{"now is the time":"buddy"}`), &tt) + _, isParseErr := err.(*ParseError) + if !isParseErr { + t.Errorf("expected *time.ParseError unmarshaling JSON, got %v", err) + } +} + +var notJSONEncodableTimes = []struct { + time Time + want string +}{ + {Date(10000, 1, 1, 0, 0, 0, 0, UTC), "Time.MarshalJSON: year outside of range [0,9999]"}, + {Date(-1, 1, 1, 0, 0, 0, 0, UTC), "Time.MarshalJSON: year outside of range [0,9999]"}, +} + +func TestNotJSONEncodableTime(t *testing.T) { + for _, tt := range notJSONEncodableTimes { + _, err := tt.time.MarshalJSON() + if err == nil || err.Error() != tt.want { + t.Errorf("%v MarshalJSON error = %v, want %v", tt.time, err, tt.want) + } + } +} + +var parseDurationTests = []struct { + in string + want Duration +}{ + // simple + {"0", 0}, + {"5s", 5 * Second}, + {"30s", 30 * Second}, + {"1478s", 1478 * Second}, + // sign + {"-5s", -5 * Second}, + {"+5s", 5 * Second}, + {"-0", 0}, + {"+0", 0}, + // decimal + {"5.0s", 5 * Second}, + {"5.6s", 5*Second + 600*Millisecond}, + {"5.s", 5 * Second}, + {".5s", 500 * Millisecond}, + {"1.0s", 1 * Second}, + {"1.00s", 1 * Second}, + {"1.004s", 1*Second + 4*Millisecond}, + {"1.0040s", 1*Second + 4*Millisecond}, + {"100.00100s", 100*Second + 1*Millisecond}, + // different units + {"10ns", 10 * Nanosecond}, + {"11us", 11 * Microsecond}, + {"12µs", 12 * Microsecond}, // U+00B5 + {"12μs", 12 * Microsecond}, // U+03BC + {"13ms", 13 * Millisecond}, + {"14s", 14 * Second}, + {"15m", 15 * Minute}, + {"16h", 16 * Hour}, + // composite durations + {"3h30m", 3*Hour + 30*Minute}, + {"10.5s4m", 4*Minute + 10*Second + 500*Millisecond}, + {"-2m3.4s", -(2*Minute + 3*Second + 400*Millisecond)}, + {"1h2m3s4ms5us6ns", 1*Hour + 2*Minute + 3*Second + 4*Millisecond + 5*Microsecond + 6*Nanosecond}, + {"39h9m14.425s", 39*Hour + 9*Minute + 14*Second + 425*Millisecond}, + // large value + {"52763797000ns", 52763797000 * Nanosecond}, + // more than 9 digits after decimal point, see https://golang.org/issue/6617 + {"0.3333333333333333333h", 20 * Minute}, + // 9007199254740993 = 1<<53+1 cannot be stored precisely in a float64 + {"9007199254740993ns", (1<<53 + 1) * Nanosecond}, + // largest duration that can be represented by int64 in nanoseconds + {"9223372036854775807ns", (1<<63 - 1) * Nanosecond}, + {"9223372036854775.807us", (1<<63 - 1) * Nanosecond}, + {"9223372036s854ms775us807ns", (1<<63 - 1) * Nanosecond}, + {"-9223372036854775808ns", -1 << 63 * Nanosecond}, + {"-9223372036854775.808us", -1 << 63 * Nanosecond}, + {"-9223372036s854ms775us808ns", -1 << 63 * Nanosecond}, + // largest negative value + {"-9223372036854775808ns", -1 << 63 * Nanosecond}, + // largest negative round trip value, see https://golang.org/issue/48629 + {"-2562047h47m16.854775808s", -1 << 63 * Nanosecond}, + // huge string; issue 15011. + {"0.100000000000000000000h", 6 * Minute}, + // This value tests the first overflow check in leadingFraction. + {"0.830103483285477580700h", 49*Minute + 48*Second + 372539827*Nanosecond}, +} + +func TestParseDuration(t *testing.T) { + for _, tc := range parseDurationTests { + d, err := ParseDuration(tc.in) + if err != nil || d != tc.want { + t.Errorf("ParseDuration(%q) = %v, %v, want %v, nil", tc.in, d, err, tc.want) + } + } +} + +var parseDurationErrorTests = []struct { + in string + expect string +}{ + // invalid + {"", `""`}, + {"3", `"3"`}, + {"-", `"-"`}, + {"s", `"s"`}, + {".", `"."`}, + {"-.", `"-."`}, + {".s", `".s"`}, + {"+.s", `"+.s"`}, + {"1d", `"1d"`}, + {"\x85\x85", `"\x85\x85"`}, + {"\xffff", `"\xffff"`}, + {"hello \xffff world", `"hello \xffff world"`}, + {"\uFFFD", `"\xef\xbf\xbd"`}, // utf8.RuneError + {"\uFFFD hello \uFFFD world", `"\xef\xbf\xbd hello \xef\xbf\xbd world"`}, // utf8.RuneError + // overflow + {"9223372036854775810ns", `"9223372036854775810ns"`}, + {"9223372036854775808ns", `"9223372036854775808ns"`}, + {"-9223372036854775809ns", `"-9223372036854775809ns"`}, + {"9223372036854776us", `"9223372036854776us"`}, + {"3000000h", `"3000000h"`}, + {"9223372036854775.808us", `"9223372036854775.808us"`}, + {"9223372036854ms775us808ns", `"9223372036854ms775us808ns"`}, +} + +func TestParseDurationErrors(t *testing.T) { + for _, tc := range parseDurationErrorTests { + _, err := ParseDuration(tc.in) + if err == nil { + t.Errorf("ParseDuration(%q) = _, nil, want _, non-nil", tc.in) + } else if !strings.Contains(err.Error(), tc.expect) { + t.Errorf("ParseDuration(%q) = _, %q, error does not contain %q", tc.in, err, tc.expect) + } + } +} + +func TestParseDurationRoundTrip(t *testing.T) { + // https://golang.org/issue/48629 + max0 := Duration(math.MaxInt64) + max1, err := ParseDuration(max0.String()) + if err != nil || max0 != max1 { + t.Errorf("round-trip failed: %d => %q => %d, %v", max0, max0.String(), max1, err) + } + + min0 := Duration(math.MinInt64) + min1, err := ParseDuration(min0.String()) + if err != nil || min0 != min1 { + t.Errorf("round-trip failed: %d => %q => %d, %v", min0, min0.String(), min1, err) + } + + for i := 0; i < 100; i++ { + // Resolutions finer than milliseconds will result in + // imprecise round-trips. + d0 := Duration(rand.Int31()) * Millisecond + s := d0.String() + d1, err := ParseDuration(s) + if err != nil || d0 != d1 { + t.Errorf("round-trip failed: %d => %q => %d, %v", d0, s, d1, err) + } + } +} + +// golang.org/issue/4622 +func TestLocationRace(t *testing.T) { + ResetLocalOnceForTest() // reset the Once to trigger the race + + c := make(chan string, 1) + go func() { + c <- Now().String() + }() + _ = Now().String() + <-c + Sleep(100 * Millisecond) + + // Back to Los Angeles for subsequent tests: + ForceUSPacificForTesting() +} + +var ( + t Time + u int64 +) + +var mallocTest = []struct { + count int + desc string + fn func() +}{ + {0, `time.Now()`, func() { t = Now() }}, + {0, `time.Now().UnixNano()`, func() { u = Now().UnixNano() }}, + {0, `time.Now().UnixMilli()`, func() { u = Now().UnixMilli() }}, + {0, `time.Now().UnixMicro()`, func() { u = Now().UnixMicro() }}, +} + +func TestCountMallocs(t *testing.T) { + if testing.Short() { + t.Skip("skipping malloc count in short mode") + } + if runtime.GOMAXPROCS(0) > 1 { + t.Skip("skipping; GOMAXPROCS>1") + } + for _, mt := range mallocTest { + allocs := int(testing.AllocsPerRun(100, mt.fn)) + if allocs > mt.count { + t.Errorf("%s: %d allocs, want %d", mt.desc, allocs, mt.count) + } + } +} + +func TestLoadFixed(t *testing.T) { + // Issue 4064: handle locations without any zone transitions. + loc, err := LoadLocation("Etc/GMT+1") + if err != nil { + t.Fatal(err) + } + + // The tzdata name Etc/GMT+1 uses "east is negative", + // but Go and most other systems use "east is positive". + // So GMT+1 corresponds to -3600 in the Go zone, not +3600. + name, offset := Now().In(loc).Zone() + // The zone abbreviation is "-01" since tzdata-2016g, and "GMT+1" + // on earlier versions; we accept both. (Issue #17276). + if !(name == "GMT+1" || name == "-01") || offset != -1*60*60 { + t.Errorf("Now().In(loc).Zone() = %q, %d, want %q or %q, %d", + name, offset, "GMT+1", "-01", -1*60*60) + } +} + +const ( + minDuration Duration = -1 << 63 + maxDuration Duration = 1<<63 - 1 +) + +var subTests = []struct { + t Time + u Time + d Duration +}{ + {Time{}, Time{}, Duration(0)}, + {Date(2009, 11, 23, 0, 0, 0, 1, UTC), Date(2009, 11, 23, 0, 0, 0, 0, UTC), Duration(1)}, + {Date(2009, 11, 23, 0, 0, 0, 0, UTC), Date(2009, 11, 24, 0, 0, 0, 0, UTC), -24 * Hour}, + {Date(2009, 11, 24, 0, 0, 0, 0, UTC), Date(2009, 11, 23, 0, 0, 0, 0, UTC), 24 * Hour}, + {Date(-2009, 11, 24, 0, 0, 0, 0, UTC), Date(-2009, 11, 23, 0, 0, 0, 0, UTC), 24 * Hour}, + {Time{}, Date(2109, 11, 23, 0, 0, 0, 0, UTC), Duration(minDuration)}, + {Date(2109, 11, 23, 0, 0, 0, 0, UTC), Time{}, Duration(maxDuration)}, + {Time{}, Date(-2109, 11, 23, 0, 0, 0, 0, UTC), Duration(maxDuration)}, + {Date(-2109, 11, 23, 0, 0, 0, 0, UTC), Time{}, Duration(minDuration)}, + {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}, + {Date(2300, 1, 1, 0, 0, 0, 0, UTC), Date(2000, 1, 1, 0, 0, 0, 0, UTC), Duration(maxDuration)}, + {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}, + {Date(2000, 1, 1, 0, 0, 0, 0, UTC), Date(2300, 1, 1, 0, 0, 0, 0, UTC), Duration(minDuration)}, + {Date(2311, 11, 26, 02, 16, 47, 63535996, UTC), Date(2019, 8, 16, 2, 29, 30, 268436582, UTC), 9223372036795099414}, + {MinMonoTime, MaxMonoTime, minDuration}, + {MaxMonoTime, MinMonoTime, maxDuration}, +} + +func TestSub(t *testing.T) { + for i, st := range subTests { + got := st.t.Sub(st.u) + if got != st.d { + t.Errorf("#%d: Sub(%v, %v): got %v; want %v", i, st.t, st.u, got, st.d) + } + } +} + +var nsDurationTests = []struct { + d Duration + want int64 +}{ + {Duration(-1000), -1000}, + {Duration(-1), -1}, + {Duration(1), 1}, + {Duration(1000), 1000}, +} + +func TestDurationNanoseconds(t *testing.T) { + for _, tt := range nsDurationTests { + if got := tt.d.Nanoseconds(); got != tt.want { + t.Errorf("Duration(%s).Nanoseconds() = %d; want: %d", tt.d, got, tt.want) + } + } +} + +var usDurationTests = []struct { + d Duration + want int64 +}{ + {Duration(-1000), -1}, + {Duration(1000), 1}, +} + +func TestDurationMicroseconds(t *testing.T) { + for _, tt := range usDurationTests { + if got := tt.d.Microseconds(); got != tt.want { + t.Errorf("Duration(%s).Microseconds() = %d; want: %d", tt.d, got, tt.want) + } + } +} + +var msDurationTests = []struct { + d Duration + want int64 +}{ + {Duration(-1000000), -1}, + {Duration(1000000), 1}, +} + +func TestDurationMilliseconds(t *testing.T) { + for _, tt := range msDurationTests { + if got := tt.d.Milliseconds(); got != tt.want { + t.Errorf("Duration(%s).Milliseconds() = %d; want: %d", tt.d, got, tt.want) + } + } +} + +var secDurationTests = []struct { + d Duration + want float64 +}{ + {Duration(300000000), 0.3}, +} + +func TestDurationSeconds(t *testing.T) { + for _, tt := range secDurationTests { + if got := tt.d.Seconds(); got != tt.want { + t.Errorf("Duration(%s).Seconds() = %g; want: %g", tt.d, got, tt.want) + } + } +} + +var minDurationTests = []struct { + d Duration + want float64 +}{ + {Duration(-60000000000), -1}, + {Duration(-1), -1 / 60e9}, + {Duration(1), 1 / 60e9}, + {Duration(60000000000), 1}, + {Duration(3000), 5e-8}, +} + +func TestDurationMinutes(t *testing.T) { + for _, tt := range minDurationTests { + if got := tt.d.Minutes(); got != tt.want { + t.Errorf("Duration(%s).Minutes() = %g; want: %g", tt.d, got, tt.want) + } + } +} + +var hourDurationTests = []struct { + d Duration + want float64 +}{ + {Duration(-3600000000000), -1}, + {Duration(-1), -1 / 3600e9}, + {Duration(1), 1 / 3600e9}, + {Duration(3600000000000), 1}, + {Duration(36), 1e-11}, +} + +func TestDurationHours(t *testing.T) { + for _, tt := range hourDurationTests { + if got := tt.d.Hours(); got != tt.want { + t.Errorf("Duration(%s).Hours() = %g; want: %g", tt.d, got, tt.want) + } + } +} + +var durationTruncateTests = []struct { + d Duration + m Duration + want Duration +}{ + {0, Second, 0}, + {Minute, -7 * Second, Minute}, + {Minute, 0, Minute}, + {Minute, 1, Minute}, + {Minute + 10*Second, 10 * Second, Minute + 10*Second}, + {2*Minute + 10*Second, Minute, 2 * Minute}, + {10*Minute + 10*Second, 3 * Minute, 9 * Minute}, + {Minute + 10*Second, Minute + 10*Second + 1, 0}, + {Minute + 10*Second, Hour, 0}, + {-Minute, Second, -Minute}, + {-10 * Minute, 3 * Minute, -9 * Minute}, + {-10 * Minute, Hour, 0}, +} + +func TestDurationTruncate(t *testing.T) { + for _, tt := range durationTruncateTests { + if got := tt.d.Truncate(tt.m); got != tt.want { + t.Errorf("Duration(%s).Truncate(%s) = %s; want: %s", tt.d, tt.m, got, tt.want) + } + } +} + +var durationRoundTests = []struct { + d Duration + m Duration + want Duration +}{ + {0, Second, 0}, + {Minute, -11 * Second, Minute}, + {Minute, 0, Minute}, + {Minute, 1, Minute}, + {2 * Minute, Minute, 2 * Minute}, + {2*Minute + 10*Second, Minute, 2 * Minute}, + {2*Minute + 30*Second, Minute, 3 * Minute}, + {2*Minute + 50*Second, Minute, 3 * Minute}, + {-Minute, 1, -Minute}, + {-2 * Minute, Minute, -2 * Minute}, + {-2*Minute - 10*Second, Minute, -2 * Minute}, + {-2*Minute - 30*Second, Minute, -3 * Minute}, + {-2*Minute - 50*Second, Minute, -3 * Minute}, + {8e18, 3e18, 9e18}, + {9e18, 5e18, 1<<63 - 1}, + {-8e18, 3e18, -9e18}, + {-9e18, 5e18, -1 << 63}, + {3<<61 - 1, 3 << 61, 3 << 61}, +} + +func TestDurationRound(t *testing.T) { + for _, tt := range durationRoundTests { + if got := tt.d.Round(tt.m); got != tt.want { + t.Errorf("Duration(%s).Round(%s) = %s; want: %s", tt.d, tt.m, got, tt.want) + } + } +} + +var defaultLocTests = []struct { + name string + f func(t1, t2 Time) bool +}{ + {"After", func(t1, t2 Time) bool { return t1.After(t2) == t2.After(t1) }}, + {"Before", func(t1, t2 Time) bool { return t1.Before(t2) == t2.Before(t1) }}, + {"Equal", func(t1, t2 Time) bool { return t1.Equal(t2) == t2.Equal(t1) }}, + + {"IsZero", func(t1, t2 Time) bool { return t1.IsZero() == t2.IsZero() }}, + {"Date", func(t1, t2 Time) bool { + a1, b1, c1 := t1.Date() + a2, b2, c2 := t2.Date() + return a1 == a2 && b1 == b2 && c1 == c2 + }}, + {"Year", func(t1, t2 Time) bool { return t1.Year() == t2.Year() }}, + {"Month", func(t1, t2 Time) bool { return t1.Month() == t2.Month() }}, + {"Day", func(t1, t2 Time) bool { return t1.Day() == t2.Day() }}, + {"Weekday", func(t1, t2 Time) bool { return t1.Weekday() == t2.Weekday() }}, + {"ISOWeek", func(t1, t2 Time) bool { + a1, b1 := t1.ISOWeek() + a2, b2 := t2.ISOWeek() + return a1 == a2 && b1 == b2 + }}, + {"Clock", func(t1, t2 Time) bool { + a1, b1, c1 := t1.Clock() + a2, b2, c2 := t2.Clock() + return a1 == a2 && b1 == b2 && c1 == c2 + }}, + {"Hour", func(t1, t2 Time) bool { return t1.Hour() == t2.Hour() }}, + {"Minute", func(t1, t2 Time) bool { return t1.Minute() == t2.Minute() }}, + {"Second", func(t1, t2 Time) bool { return t1.Second() == t2.Second() }}, + {"Nanosecond", func(t1, t2 Time) bool { return t1.Hour() == t2.Hour() }}, + {"YearDay", func(t1, t2 Time) bool { return t1.YearDay() == t2.YearDay() }}, + + // Using Equal since Add don't modify loc using "==" will cause a fail + {"Add", func(t1, t2 Time) bool { return t1.Add(Hour).Equal(t2.Add(Hour)) }}, + {"Sub", func(t1, t2 Time) bool { return t1.Sub(t2) == t2.Sub(t1) }}, + + //Original caus for this test case bug 15852 + {"AddDate", func(t1, t2 Time) bool { return t1.AddDate(1991, 9, 3) == t2.AddDate(1991, 9, 3) }}, + + {"UTC", func(t1, t2 Time) bool { return t1.UTC() == t2.UTC() }}, + {"Local", func(t1, t2 Time) bool { return t1.Local() == t2.Local() }}, + {"In", func(t1, t2 Time) bool { return t1.In(UTC) == t2.In(UTC) }}, + + {"Local", func(t1, t2 Time) bool { return t1.Local() == t2.Local() }}, + {"Zone", func(t1, t2 Time) bool { + a1, b1 := t1.Zone() + a2, b2 := t2.Zone() + return a1 == a2 && b1 == b2 + }}, + + {"Unix", func(t1, t2 Time) bool { return t1.Unix() == t2.Unix() }}, + {"UnixNano", func(t1, t2 Time) bool { return t1.UnixNano() == t2.UnixNano() }}, + {"UnixMilli", func(t1, t2 Time) bool { return t1.UnixMilli() == t2.UnixMilli() }}, + {"UnixMicro", func(t1, t2 Time) bool { return t1.UnixMicro() == t2.UnixMicro() }}, + + {"MarshalBinary", func(t1, t2 Time) bool { + a1, b1 := t1.MarshalBinary() + a2, b2 := t2.MarshalBinary() + return bytes.Equal(a1, a2) && b1 == b2 + }}, + {"GobEncode", func(t1, t2 Time) bool { + a1, b1 := t1.GobEncode() + a2, b2 := t2.GobEncode() + return bytes.Equal(a1, a2) && b1 == b2 + }}, + {"MarshalJSON", func(t1, t2 Time) bool { + a1, b1 := t1.MarshalJSON() + a2, b2 := t2.MarshalJSON() + return bytes.Equal(a1, a2) && b1 == b2 + }}, + {"MarshalText", func(t1, t2 Time) bool { + a1, b1 := t1.MarshalText() + a2, b2 := t2.MarshalText() + return bytes.Equal(a1, a2) && b1 == b2 + }}, + + {"Truncate", func(t1, t2 Time) bool { return t1.Truncate(Hour).Equal(t2.Truncate(Hour)) }}, + {"Round", func(t1, t2 Time) bool { return t1.Round(Hour).Equal(t2.Round(Hour)) }}, + + {"== Time{}", func(t1, t2 Time) bool { return (t1 == Time{}) == (t2 == Time{}) }}, +} + +func TestDefaultLoc(t *testing.T) { + // Verify that all of Time's methods behave identically if loc is set to + // nil or UTC. + for _, tt := range defaultLocTests { + t1 := Time{} + t2 := Time{}.UTC() + if !tt.f(t1, t2) { + t.Errorf("Time{} and Time{}.UTC() behave differently for %s", tt.name) + } + } +} + +func BenchmarkNow(b *testing.B) { + for i := 0; i < b.N; i++ { + t = Now() + } +} + +func BenchmarkNowUnixNano(b *testing.B) { + for i := 0; i < b.N; i++ { + u = Now().UnixNano() + } +} + +func BenchmarkNowUnixMilli(b *testing.B) { + for i := 0; i < b.N; i++ { + u = Now().UnixMilli() + } +} + +func BenchmarkNowUnixMicro(b *testing.B) { + for i := 0; i < b.N; i++ { + u = Now().UnixMicro() + } +} + +func BenchmarkFormat(b *testing.B) { + t := Unix(1265346057, 0) + for i := 0; i < b.N; i++ { + t.Format("Mon Jan 2 15:04:05 2006") + } +} + +func BenchmarkFormatNow(b *testing.B) { + // Like BenchmarkFormat, but easier, because the time zone + // lookup cache is optimized for the present. + t := Now() + for i := 0; i < b.N; i++ { + t.Format("Mon Jan 2 15:04:05 2006") + } +} + +func BenchmarkMarshalJSON(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + t.MarshalJSON() + } +} + +func BenchmarkMarshalText(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + t.MarshalText() + } +} + +func BenchmarkParse(b *testing.B) { + for i := 0; i < b.N; i++ { + Parse(ANSIC, "Mon Jan 2 15:04:05 2006") + } +} + +func BenchmarkParseDuration(b *testing.B) { + for i := 0; i < b.N; i++ { + ParseDuration("9007199254.740993ms") + ParseDuration("9007199254740993ns") + } +} + +func BenchmarkHour(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + _ = t.Hour() + } +} + +func BenchmarkSecond(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + _ = t.Second() + } +} + +func BenchmarkYear(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + _ = t.Year() + } +} + +func BenchmarkDay(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + _ = t.Day() + } +} + +func BenchmarkISOWeek(b *testing.B) { + t := Now() + for i := 0; i < b.N; i++ { + _, _ = t.ISOWeek() + } +} + +func TestMarshalBinaryZeroTime(t *testing.T) { + t0 := Time{} + enc, err := t0.MarshalBinary() + if err != nil { + t.Fatal(err) + } + t1 := Now() // not zero + if err := t1.UnmarshalBinary(enc); err != nil { + t.Fatal(err) + } + if t1 != t0 { + t.Errorf("t0=%#v\nt1=%#v\nwant identical structures", t0, t1) + } +} + +func TestMarshalBinaryVersion2(t *testing.T) { + t0, err := Parse(RFC3339, "1880-01-01T00:00:00Z") + if err != nil { + t.Errorf("Failed to parse time, error = %v", err) + } + loc, err := LoadLocation("US/Eastern") + if err != nil { + t.Errorf("Failed to load location, error = %v", err) + } + t1 := t0.In(loc) + b, err := t1.MarshalBinary() + if err != nil { + t.Errorf("Failed to Marshal, error = %v", err) + } + + t2 := Time{} + err = t2.UnmarshalBinary(b) + if err != nil { + t.Errorf("Failed to Unmarshal, error = %v", err) + } + + if !(t0.Equal(t1) && t1.Equal(t2)) { + if !t0.Equal(t1) { + t.Errorf("The result t1: %+v after Marshal is not matched original t0: %+v", t1, t0) + } + if !t1.Equal(t2) { + t.Errorf("The result t2: %+v after Unmarshal is not matched original t1: %+v", t2, t1) + } + } +} + +// Issue 17720: Zero value of time.Month fails to print +func TestZeroMonthString(t *testing.T) { + if got, want := Month(0).String(), "%!Month(0)"; got != want { + t.Errorf("zero month = %q; want %q", got, want) + } +} + +// Issue 24692: Out of range weekday panics +func TestWeekdayString(t *testing.T) { + if got, want := Weekday(Tuesday).String(), "Tuesday"; got != want { + t.Errorf("Tuesday weekday = %q; want %q", got, want) + } + if got, want := Weekday(14).String(), "%!Weekday(14)"; got != want { + t.Errorf("14th weekday = %q; want %q", got, want) + } +} + +func TestReadFileLimit(t *testing.T) { + const zero = "/dev/zero" + if _, err := os.Stat(zero); err != nil { + t.Skip("skipping test without a /dev/zero") + } + _, err := ReadFile(zero) + if err == nil || !strings.Contains(err.Error(), "is too large") { + t.Errorf("readFile(%q) error = %v; want error containing 'is too large'", zero, err) + } +} + +// Issue 25686: hard crash on concurrent timer access. +// Issue 37400: panic with "racy use of timers" +// This test deliberately invokes a race condition. +// We are testing that we don't crash with "fatal error: panic holding locks", +// and that we also don't panic. +func TestConcurrentTimerReset(t *testing.T) { + const goroutines = 8 + const tries = 1000 + var wg sync.WaitGroup + wg.Add(goroutines) + timer := NewTimer(Hour) + for i := 0; i < goroutines; i++ { + go func(i int) { + defer wg.Done() + for j := 0; j < tries; j++ { + timer.Reset(Hour + Duration(i*j)) + } + }(i) + } + wg.Wait() +} + +// Issue 37400: panic with "racy use of timers". +func TestConcurrentTimerResetStop(t *testing.T) { + const goroutines = 8 + const tries = 1000 + var wg sync.WaitGroup + wg.Add(goroutines * 2) + timer := NewTimer(Hour) + for i := 0; i < goroutines; i++ { + go func(i int) { + defer wg.Done() + for j := 0; j < tries; j++ { + timer.Reset(Hour + Duration(i*j)) + } + }(i) + go func(i int) { + defer wg.Done() + timer.Stop() + }(i) + } + wg.Wait() +} + +func TestTimeIsDST(t *testing.T) { + ForceZipFileForTesting(true) + defer ForceZipFileForTesting(false) + + tzWithDST, err := LoadLocation("Australia/Sydney") + if err != nil { + t.Fatalf("could not load tz 'Australia/Sydney': %v", err) + } + tzWithoutDST, err := LoadLocation("Australia/Brisbane") + if err != nil { + t.Fatalf("could not load tz 'Australia/Brisbane': %v", err) + } + tzFixed := FixedZone("FIXED_TIME", 12345) + + tests := [...]struct { + time Time + want bool + }{ + 0: {Date(2009, 1, 1, 12, 0, 0, 0, UTC), false}, + 1: {Date(2009, 6, 1, 12, 0, 0, 0, UTC), false}, + 2: {Date(2009, 1, 1, 12, 0, 0, 0, tzWithDST), true}, + 3: {Date(2009, 6, 1, 12, 0, 0, 0, tzWithDST), false}, + 4: {Date(2009, 1, 1, 12, 0, 0, 0, tzWithoutDST), false}, + 5: {Date(2009, 6, 1, 12, 0, 0, 0, tzWithoutDST), false}, + 6: {Date(2009, 1, 1, 12, 0, 0, 0, tzFixed), false}, + 7: {Date(2009, 6, 1, 12, 0, 0, 0, tzFixed), false}, + } + + for i, tt := range tests { + got := tt.time.IsDST() + if got != tt.want { + t.Errorf("#%d:: (%#v).IsDST()=%t, want %t", i, tt.time.Format(RFC3339), got, tt.want) + } + } +} + +func TestTimeAddSecOverflow(t *testing.T) { + // Test it with positive delta. + var maxInt64 int64 = 1<<63 - 1 + timeExt := maxInt64 - UnixToInternal - 50 + notMonoTime := Unix(timeExt, 0) + for i := int64(0); i < 100; i++ { + sec := notMonoTime.Unix() + notMonoTime = notMonoTime.Add(Duration(i * 1e9)) + if newSec := notMonoTime.Unix(); newSec != sec+i && newSec+UnixToInternal != maxInt64 { + t.Fatalf("time ext: %d overflows with positive delta, overflow threshold: %d", newSec, maxInt64) + } + } + + // Test it with negative delta. + maxInt64 = -maxInt64 + notMonoTime = NotMonoNegativeTime + for i := int64(0); i > -100; i-- { + sec := notMonoTime.Unix() + notMonoTime = notMonoTime.Add(Duration(i * 1e9)) + if newSec := notMonoTime.Unix(); newSec != sec+i && newSec+UnixToInternal != maxInt64 { + t.Fatalf("time ext: %d overflows with positive delta, overflow threshold: %d", newSec, maxInt64) + } + } +} + +// Issue 49284: time: ParseInLocation incorrectly because of Daylight Saving Time +func TestTimeWithZoneTransition(t *testing.T) { + ForceZipFileForTesting(true) + defer ForceZipFileForTesting(false) + + loc, err := LoadLocation("Asia/Shanghai") + if err != nil { + t.Fatal(err) + } + + tests := [...]struct { + give Time + want Time + }{ + // 14 Apr 1991 - Daylight Saving Time Started + // When time of "Asia/Shanghai" was about to reach + // Sunday, 14 April 1991, 02:00:00 clocks were turned forward 1 hour to + // Sunday, 14 April 1991, 03:00:00 local daylight time instead. + // The UTC time was 13 April 1991, 18:00:00 + 0: {Date(1991, April, 13, 17, 50, 0, 0, loc), Date(1991, April, 13, 9, 50, 0, 0, UTC)}, + 1: {Date(1991, April, 13, 18, 0, 0, 0, loc), Date(1991, April, 13, 10, 0, 0, 0, UTC)}, + 2: {Date(1991, April, 14, 1, 50, 0, 0, loc), Date(1991, April, 13, 17, 50, 0, 0, UTC)}, + 3: {Date(1991, April, 14, 3, 0, 0, 0, loc), Date(1991, April, 13, 18, 0, 0, 0, UTC)}, + + // 15 Sep 1991 - Daylight Saving Time Ended + // When local daylight time of "Asia/Shanghai" was about to reach + // Sunday, 15 September 1991, 02:00:00 clocks were turned backward 1 hour to + // Sunday, 15 September 1991, 01:00:00 local standard time instead. + // The UTC time was 14 September 1991, 17:00:00 + 4: {Date(1991, September, 14, 16, 50, 0, 0, loc), Date(1991, September, 14, 7, 50, 0, 0, UTC)}, + 5: {Date(1991, September, 14, 17, 0, 0, 0, loc), Date(1991, September, 14, 8, 0, 0, 0, UTC)}, + 6: {Date(1991, September, 15, 0, 50, 0, 0, loc), Date(1991, September, 14, 15, 50, 0, 0, UTC)}, + 7: {Date(1991, September, 15, 2, 00, 0, 0, loc), Date(1991, September, 14, 18, 00, 0, 0, UTC)}, + } + + for i, tt := range tests { + if !tt.give.Equal(tt.want) { + t.Errorf("#%d:: %#v is not equal to %#v", i, tt.give.Format(RFC3339), tt.want.Format(RFC3339)) + } + } +} -- cgit v1.2.3