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format_test.go
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// 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"
"fmt"
"math"
"strconv"
"strings"
"testing"
"testing/quick"
. "time"
)
var nextStdChunkTests = []string{
"(2006)-(01)-(02)T(15):(04):(05)(Z07:00)",
"(2006)-(01)-(02) (002) (15):(04):(05)",
"(2006)-(01) (002) (15):(04):(05)",
"(2006)-(002) (15):(04):(05)",
"(2006)(002)(01) (15):(04):(05)",
"(2006)(002)(04) (15):(04):(05)",
}
func TestNextStdChunk(t *testing.T) {
// Most bugs in Parse or Format boil down to problems with
// the exact detection of format chunk boundaries in the
// helper function nextStdChunk (here called as NextStdChunk).
// This test checks nextStdChunk's behavior directly,
// instead of needing to test it only indirectly through Parse/Format.
// markChunks returns format with each detected
// 'format chunk' parenthesized.
// For example showChunks("2006-01-02") == "(2006)-(01)-(02)".
markChunks := func(format string) string {
// Note that NextStdChunk and StdChunkNames
// are not part of time's public API.
// They are exported in export_test for this test.
out := ""
for s := format; s != ""; {
prefix, std, suffix := NextStdChunk(s)
out += prefix
if std > 0 {
out += "(" + StdChunkNames[std] + ")"
}
s = suffix
}
return out
}
noParens := func(r rune) rune {
if r == '(' || r == ')' {
return -1
}
return r
}
for _, marked := range nextStdChunkTests {
// marked is an expected output from markChunks.
// If we delete the parens and pass it through markChunks,
// we should get the original back.
format := strings.Map(noParens, marked)
out := markChunks(format)
if out != marked {
t.Errorf("nextStdChunk parses %q as %q, want %q", format, out, marked)
}
}
}
type TimeFormatTest struct {
time Time
formattedValue string
}
var rfc3339Formats = []TimeFormatTest{
{Date(2008, 9, 17, 20, 4, 26, 0, UTC), "2008-09-17T20:04:26Z"},
{Date(1994, 9, 17, 20, 4, 26, 0, FixedZone("EST", -18000)), "1994-09-17T20:04:26-05:00"},
{Date(2000, 12, 26, 1, 15, 6, 0, FixedZone("OTO", 15600)), "2000-12-26T01:15:06+04:20"},
}
func TestRFC3339Conversion(t *testing.T) {
for _, f := range rfc3339Formats {
if f.time.Format(RFC3339) != f.formattedValue {
t.Error("RFC3339:")
t.Errorf(" want=%+v", f.formattedValue)
t.Errorf(" have=%+v", f.time.Format(RFC3339))
}
}
}
func TestAppendInt(t *testing.T) {
tests := []struct {
in int
width int
want string
}{
{0, 0, "0"},
{0, 1, "0"},
{0, 2, "00"},
{0, 3, "000"},
{1, 0, "1"},
{1, 1, "1"},
{1, 2, "01"},
{1, 3, "001"},
{-1, 0, "-1"},
{-1, 1, "-1"},
{-1, 2, "-01"},
{-1, 3, "-001"},
{99, 2, "99"},
{100, 2, "100"},
{1, 4, "0001"},
{12, 4, "0012"},
{123, 4, "0123"},
{1234, 4, "1234"},
{12345, 4, "12345"},
{1, 5, "00001"},
{12, 5, "00012"},
{123, 5, "00123"},
{1234, 5, "01234"},
{12345, 5, "12345"},
{123456, 5, "123456"},
{0, 9, "000000000"},
{123, 9, "000000123"},
{123456, 9, "000123456"},
{123456789, 9, "123456789"},
}
var got []byte
for _, tt := range tests {
got = AppendInt(got[:0], tt.in, tt.width)
if string(got) != tt.want {
t.Errorf("appendInt(%d, %d) = %s, want %s", tt.in, tt.width, got, tt.want)
}
}
}
type FormatTest struct {
name string
format string
result string
}
var formatTests = []FormatTest{
{"ANSIC", ANSIC, "Wed Feb 4 21:00:57 2009"},
{"UnixDate", UnixDate, "Wed Feb 4 21:00:57 PST 2009"},
{"RubyDate", RubyDate, "Wed Feb 04 21:00:57 -0800 2009"},
{"RFC822", RFC822, "04 Feb 09 21:00 PST"},
{"RFC850", RFC850, "Wednesday, 04-Feb-09 21:00:57 PST"},
{"RFC1123", RFC1123, "Wed, 04 Feb 2009 21:00:57 PST"},
{"RFC1123Z", RFC1123Z, "Wed, 04 Feb 2009 21:00:57 -0800"},
{"RFC3339", RFC3339, "2009-02-04T21:00:57-08:00"},
{"RFC3339Nano", RFC3339Nano, "2009-02-04T21:00:57.0123456-08:00"},
{"Kitchen", Kitchen, "9:00PM"},
{"am/pm", "3pm", "9pm"},
{"AM/PM", "3PM", "9PM"},
{"two-digit year", "06 01 02", "09 02 04"},
// Three-letter months and days must not be followed by lower-case letter.
{"Janet", "Hi Janet, the Month is January", "Hi Janet, the Month is February"},
// Time stamps, Fractional seconds.
{"Stamp", Stamp, "Feb 4 21:00:57"},
{"StampMilli", StampMilli, "Feb 4 21:00:57.012"},
{"StampMicro", StampMicro, "Feb 4 21:00:57.012345"},
{"StampNano", StampNano, "Feb 4 21:00:57.012345600"},
{"DateTime", DateTime, "2009-02-04 21:00:57"},
{"DateOnly", DateOnly, "2009-02-04"},
{"TimeOnly", TimeOnly, "21:00:57"},
{"YearDay", "Jan 2 002 __2 2", "Feb 4 035 35 4"},
{"Year", "2006 6 06 _6 __6 ___6", "2009 6 09 _6 __6 ___6"},
{"Month", "Jan January 1 01 _1", "Feb February 2 02 _2"},
{"DayOfMonth", "2 02 _2 __2", "4 04 4 35"},
{"DayOfWeek", "Mon Monday", "Wed Wednesday"},
{"Hour", "15 3 03 _3", "21 9 09 _9"},
{"Minute", "4 04 _4", "0 00 _0"},
{"Second", "5 05 _5", "57 57 _57"},
}
func TestFormat(t *testing.T) {
// The numeric time represents Thu Feb 4 21:00:57.012345600 PST 2009
time := Unix(0, 1233810057012345600)
for _, test := range formatTests {
result := time.Format(test.format)
if result != test.result {
t.Errorf("%s expected %q got %q", test.name, test.result, result)
}
}
}
var goStringTests = []struct {
in Time
want string
}{
{Date(2009, February, 5, 5, 0, 57, 12345600, UTC),
"time.Date(2009, time.February, 5, 5, 0, 57, 12345600, time.UTC)"},
{Date(2009, February, 5, 5, 0, 57, 12345600, Local),
"time.Date(2009, time.February, 5, 5, 0, 57, 12345600, time.Local)"},
{Date(2009, February, 5, 5, 0, 57, 12345600, FixedZone("Europe/Berlin", 3*60*60)),
`time.Date(2009, time.February, 5, 5, 0, 57, 12345600, time.Location("Europe/Berlin"))`,
},
{Date(2009, February, 5, 5, 0, 57, 12345600, FixedZone("Non-ASCII character ⏰", 3*60*60)),
`time.Date(2009, time.February, 5, 5, 0, 57, 12345600, time.Location("Non-ASCII character \xe2\x8f\xb0"))`,
},
}
func TestGoString(t *testing.T) {
// The numeric time represents Thu Feb 4 21:00:57.012345600 PST 2009
for _, tt := range goStringTests {
if tt.in.GoString() != tt.want {
t.Errorf("GoString (%q): got %q want %q", tt.in, tt.in.GoString(), tt.want)
}
}
}
// issue 12440.
func TestFormatSingleDigits(t *testing.T) {
time := Date(2001, 2, 3, 4, 5, 6, 700000000, UTC)
test := FormatTest{"single digit format", "3:4:5", "4:5:6"}
result := time.Format(test.format)
if result != test.result {
t.Errorf("%s expected %q got %q", test.name, test.result, result)
}
}
func TestFormatShortYear(t *testing.T) {
years := []int{
-100001, -100000, -99999,
-10001, -10000, -9999,
-1001, -1000, -999,
-101, -100, -99,
-11, -10, -9,
-1, 0, 1,
9, 10, 11,
99, 100, 101,
999, 1000, 1001,
9999, 10000, 10001,
99999, 100000, 100001,
}
for _, y := range years {
time := Date(y, January, 1, 0, 0, 0, 0, UTC)
result := time.Format("2006.01.02")
var want string
if y < 0 {
// The 4 in %04d counts the - sign, so print -y instead
// and introduce our own - sign.
want = fmt.Sprintf("-%04d.%02d.%02d", -y, 1, 1)
} else {
want = fmt.Sprintf("%04d.%02d.%02d", y, 1, 1)
}
if result != want {
t.Errorf("(jan 1 %d).Format(\"2006.01.02\") = %q, want %q", y, result, want)
}
}
}
type ParseTest struct {
name string
format string
value string
hasTZ bool // contains a time zone
hasWD bool // contains a weekday
yearSign int // sign of year, -1 indicates the year is not present in the format
fracDigits int // number of digits of fractional second
}
var parseTests = []ParseTest{
{"ANSIC", ANSIC, "Thu Feb 4 21:00:57 2010", false, true, 1, 0},
{"UnixDate", UnixDate, "Thu Feb 4 21:00:57 PST 2010", true, true, 1, 0},
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0800 2010", true, true, 1, 0},
{"RFC850", RFC850, "Thursday, 04-Feb-10 21:00:57 PST", true, true, 1, 0},
{"RFC1123", RFC1123, "Thu, 04 Feb 2010 21:00:57 PST", true, true, 1, 0},
{"RFC1123", RFC1123, "Thu, 04 Feb 2010 22:00:57 PDT", true, true, 1, 0},
{"RFC1123Z", RFC1123Z, "Thu, 04 Feb 2010 21:00:57 -0800", true, true, 1, 0},
{"RFC3339", RFC3339, "2010-02-04T21:00:57-08:00", true, false, 1, 0},
{"custom: \"2006-01-02 15:04:05-07\"", "2006-01-02 15:04:05-07", "2010-02-04 21:00:57-08", true, false, 1, 0},
// Optional fractional seconds.
{"ANSIC", ANSIC, "Thu Feb 4 21:00:57.0 2010", false, true, 1, 1},
{"UnixDate", UnixDate, "Thu Feb 4 21:00:57.01 PST 2010", true, true, 1, 2},
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57.012 -0800 2010", true, true, 1, 3},
{"RFC850", RFC850, "Thursday, 04-Feb-10 21:00:57.0123 PST", true, true, 1, 4},
{"RFC1123", RFC1123, "Thu, 04 Feb 2010 21:00:57.01234 PST", true, true, 1, 5},
{"RFC1123Z", RFC1123Z, "Thu, 04 Feb 2010 21:00:57.01234 -0800", true, true, 1, 5},
{"RFC3339", RFC3339, "2010-02-04T21:00:57.012345678-08:00", true, false, 1, 9},
{"custom: \"2006-01-02 15:04:05\"", "2006-01-02 15:04:05", "2010-02-04 21:00:57.0", false, false, 1, 0},
// Amount of white space should not matter.
{"ANSIC", ANSIC, "Thu Feb 4 21:00:57 2010", false, true, 1, 0},
{"ANSIC", ANSIC, "Thu Feb 4 21:00:57 2010", false, true, 1, 0},
// Case should not matter
{"ANSIC", ANSIC, "THU FEB 4 21:00:57 2010", false, true, 1, 0},
{"ANSIC", ANSIC, "thu feb 4 21:00:57 2010", false, true, 1, 0},
// Fractional seconds.
{"millisecond:: dot separator", "Mon Jan _2 15:04:05.000 2006", "Thu Feb 4 21:00:57.012 2010", false, true, 1, 3},
{"microsecond:: dot separator", "Mon Jan _2 15:04:05.000000 2006", "Thu Feb 4 21:00:57.012345 2010", false, true, 1, 6},
{"nanosecond:: dot separator", "Mon Jan _2 15:04:05.000000000 2006", "Thu Feb 4 21:00:57.012345678 2010", false, true, 1, 9},
{"millisecond:: comma separator", "Mon Jan _2 15:04:05,000 2006", "Thu Feb 4 21:00:57.012 2010", false, true, 1, 3},
{"microsecond:: comma separator", "Mon Jan _2 15:04:05,000000 2006", "Thu Feb 4 21:00:57.012345 2010", false, true, 1, 6},
{"nanosecond:: comma separator", "Mon Jan _2 15:04:05,000000000 2006", "Thu Feb 4 21:00:57.012345678 2010", false, true, 1, 9},
// Leading zeros in other places should not be taken as fractional seconds.
{"zero1", "2006.01.02.15.04.05.0", "2010.02.04.21.00.57.0", false, false, 1, 1},
{"zero2", "2006.01.02.15.04.05.00", "2010.02.04.21.00.57.01", false, false, 1, 2},
// Month and day names only match when not followed by a lower-case letter.
{"Janet", "Hi Janet, the Month is January: Jan _2 15:04:05 2006", "Hi Janet, the Month is February: Feb 4 21:00:57 2010", false, true, 1, 0},
// GMT with offset.
{"GMT-8", UnixDate, "Fri Feb 5 05:00:57 GMT-8 2010", true, true, 1, 0},
// Accept any number of fractional second digits (including none) for .999...
// In Go 1, .999... was completely ignored in the format, meaning the first two
// cases would succeed, but the next four would not. Go 1.1 accepts all six.
// decimal "." separator.
{"", "2006-01-02 15:04:05.9999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
{"", "2006-01-02 15:04:05.999999999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
{"", "2006-01-02 15:04:05.9999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},
{"", "2006-01-02 15:04:05.999999999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},
{"", "2006-01-02 15:04:05.9999 -0700 MST", "2010-02-04 21:00:57.012345678 -0800 PST", true, false, 1, 9},
{"", "2006-01-02 15:04:05.999999999 -0700 MST", "2010-02-04 21:00:57.012345678 -0800 PST", true, false, 1, 9},
// comma "," separator.
{"", "2006-01-02 15:04:05,9999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
{"", "2006-01-02 15:04:05,999999999 -0700 MST", "2010-02-04 21:00:57 -0800 PST", true, false, 1, 0},
{"", "2006-01-02 15:04:05,9999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},
{"", "2006-01-02 15:04:05,999999999 -0700 MST", "2010-02-04 21:00:57.0123 -0800 PST", true, false, 1, 4},
{"", "2006-01-02 15:04:05,9999 -0700 MST", "2010-02-04 21:00:57.012345678 -0800 PST", true, false, 1, 9},
{"", "2006-01-02 15:04:05,999999999 -0700 MST", "2010-02-04 21:00:57.012345678 -0800 PST", true, false, 1, 9},
// issue 4502.
{"", StampNano, "Feb 4 21:00:57.012345678", false, false, -1, 9},
{"", "Jan _2 15:04:05.999", "Feb 4 21:00:57.012300000", false, false, -1, 4},
{"", "Jan _2 15:04:05.999", "Feb 4 21:00:57.012345678", false, false, -1, 9},
{"", "Jan _2 15:04:05.999999999", "Feb 4 21:00:57.0123", false, false, -1, 4},
{"", "Jan _2 15:04:05.999999999", "Feb 4 21:00:57.012345678", false, false, -1, 9},
// Day of year.
{"", "2006-01-02 002 15:04:05", "2010-02-04 035 21:00:57", false, false, 1, 0},
{"", "2006-01 002 15:04:05", "2010-02 035 21:00:57", false, false, 1, 0},
{"", "2006-002 15:04:05", "2010-035 21:00:57", false, false, 1, 0},
{"", "200600201 15:04:05", "201003502 21:00:57", false, false, 1, 0},
{"", "200600204 15:04:05", "201003504 21:00:57", false, false, 1, 0},
// Time zone offsets
{"", "2006-01-02T15:04:05Z07", "2010-02-04T21:00:57Z", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07", "2010-02-04T21:00:57+08", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07", "2010-02-04T21:00:57-08", true, false, 1, 0},
{"", "2006-01-02T15:04:05Z0700", "2010-02-04T21:00:57Z", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z0700", "2010-02-04T21:00:57+0800", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z0700", "2010-02-04T21:00:57-0800", true, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00", "2010-02-04T21:00:57Z", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00", "2010-02-04T21:00:57+08:00", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00", "2010-02-04T21:00:57-08:00", true, false, 1, 0},
{"", "2006-01-02T15:04:05Z070000", "2010-02-04T21:00:57Z", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z070000", "2010-02-04T21:00:57+080000", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z070000", "2010-02-04T21:00:57-080000", true, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00:00", "2010-02-04T21:00:57Z", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00:00", "2010-02-04T21:00:57+08:00:00", false, false, 1, 0},
{"", "2006-01-02T15:04:05Z07:00:00", "2010-02-04T21:00:57-08:00:00", true, false, 1, 0},
}
func TestParse(t *testing.T) {
for _, test := range parseTests {
time, err := Parse(test.format, test.value)
if err != nil {
t.Errorf("%s error: %v", test.name, err)
} else {
checkTime(time, &test, t)
}
}
}
// All parsed with ANSIC.
var dayOutOfRangeTests = []struct {
date string
ok bool
}{
{"Thu Jan 99 21:00:57 2010", false},
{"Thu Jan 31 21:00:57 2010", true},
{"Thu Jan 32 21:00:57 2010", false},
{"Thu Feb 28 21:00:57 2012", true},
{"Thu Feb 29 21:00:57 2012", true},
{"Thu Feb 29 21:00:57 2010", false},
{"Thu Mar 31 21:00:57 2010", true},
{"Thu Mar 32 21:00:57 2010", false},
{"Thu Apr 30 21:00:57 2010", true},
{"Thu Apr 31 21:00:57 2010", false},
{"Thu May 31 21:00:57 2010", true},
{"Thu May 32 21:00:57 2010", false},
{"Thu Jun 30 21:00:57 2010", true},
{"Thu Jun 31 21:00:57 2010", false},
{"Thu Jul 31 21:00:57 2010", true},
{"Thu Jul 32 21:00:57 2010", false},
{"Thu Aug 31 21:00:57 2010", true},
{"Thu Aug 32 21:00:57 2010", false},
{"Thu Sep 30 21:00:57 2010", true},
{"Thu Sep 31 21:00:57 2010", false},
{"Thu Oct 31 21:00:57 2010", true},
{"Thu Oct 32 21:00:57 2010", false},
{"Thu Nov 30 21:00:57 2010", true},
{"Thu Nov 31 21:00:57 2010", false},
{"Thu Dec 31 21:00:57 2010", true},
{"Thu Dec 32 21:00:57 2010", false},
{"Thu Dec 00 21:00:57 2010", false},
}
func TestParseDayOutOfRange(t *testing.T) {
for _, test := range dayOutOfRangeTests {
_, err := Parse(ANSIC, test.date)
switch {
case test.ok && err == nil:
// OK
case !test.ok && err != nil:
if !strings.Contains(err.Error(), "day out of range") {
t.Errorf("%q: expected 'day' error, got %v", test.date, err)
}
case test.ok && err != nil:
t.Errorf("%q: unexpected error: %v", test.date, err)
case !test.ok && err == nil:
t.Errorf("%q: expected 'day' error, got none", test.date)
}
}
}
// TestParseInLocation checks that the Parse and ParseInLocation
// functions do not get confused by the fact that AST (Arabia Standard
// Time) and AST (Atlantic Standard Time) are different time zones,
// even though they have the same abbreviation.
//
// ICANN has been slowly phasing out invented abbreviation in favor of
// numeric time zones (for example, the Asia/Baghdad time zone
// abbreviation got changed from AST to +03 in the 2017a tzdata
// release); but we still want to make sure that the time package does
// not get confused on systems with slightly older tzdata packages.
func TestParseInLocation(t *testing.T) {
baghdad, err := LoadLocation("Asia/Baghdad")
if err != nil {
t.Fatal(err)
}
var t1, t2 Time
t1, err = ParseInLocation("Jan 02 2006 MST", "Feb 01 2013 AST", baghdad)
if err != nil {
t.Fatal(err)
}
_, offset := t1.Zone()
// A zero offset means that ParseInLocation did not recognize the
// 'AST' abbreviation as matching the current location (Baghdad,
// where we'd expect a +03 hrs offset); likely because we're using
// a recent tzdata release (2017a or newer).
// If it happens, skip the Baghdad test.
if offset != 0 {
t2 = Date(2013, February, 1, 00, 00, 00, 0, baghdad)
if t1 != t2 {
t.Fatalf("ParseInLocation(Feb 01 2013 AST, Baghdad) = %v, want %v", t1, t2)
}
if offset != 3*60*60 {
t.Fatalf("ParseInLocation(Feb 01 2013 AST, Baghdad).Zone = _, %d, want _, %d", offset, 3*60*60)
}
}
blancSablon, err := LoadLocation("America/Blanc-Sablon")
if err != nil {
t.Fatal(err)
}
// In this case 'AST' means 'Atlantic Standard Time', and we
// expect the abbreviation to correctly match the american
// location.
t1, err = ParseInLocation("Jan 02 2006 MST", "Feb 01 2013 AST", blancSablon)
if err != nil {
t.Fatal(err)
}
t2 = Date(2013, February, 1, 00, 00, 00, 0, blancSablon)
if t1 != t2 {
t.Fatalf("ParseInLocation(Feb 01 2013 AST, Blanc-Sablon) = %v, want %v", t1, t2)
}
_, offset = t1.Zone()
if offset != -4*60*60 {
t.Fatalf("ParseInLocation(Feb 01 2013 AST, Blanc-Sablon).Zone = _, %d, want _, %d", offset, -4*60*60)
}
}
func TestLoadLocationZipFile(t *testing.T) {
undo := DisablePlatformSources()
defer undo()
_, err := LoadLocation("Australia/Sydney")
if err != nil {
t.Fatal(err)
}
}
var rubyTests = []ParseTest{
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0800 2010", true, true, 1, 0},
// Ignore the time zone in the test. If it parses, it'll be OK.
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 -0000 2010", false, true, 1, 0},
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 +0000 2010", false, true, 1, 0},
{"RubyDate", RubyDate, "Thu Feb 04 21:00:57 +1130 2010", false, true, 1, 0},
}
// Problematic time zone format needs special tests.
func TestRubyParse(t *testing.T) {
for _, test := range rubyTests {
time, err := Parse(test.format, test.value)
if err != nil {
t.Errorf("%s error: %v", test.name, err)
} else {
checkTime(time, &test, t)
}
}
}
func checkTime(time Time, test *ParseTest, t *testing.T) {
// The time should be Thu Feb 4 21:00:57 PST 2010
if test.yearSign >= 0 && test.yearSign*time.Year() != 2010 {
t.Errorf("%s: bad year: %d not %d", test.name, time.Year(), 2010)
}
if time.Month() != February {
t.Errorf("%s: bad month: %s not %s", test.name, time.Month(), February)
}
if time.Day() != 4 {
t.Errorf("%s: bad day: %d not %d", test.name, time.Day(), 4)
}
if time.Hour() != 21 {
t.Errorf("%s: bad hour: %d not %d", test.name, time.Hour(), 21)
}
if time.Minute() != 0 {
t.Errorf("%s: bad minute: %d not %d", test.name, time.Minute(), 0)
}
if time.Second() != 57 {
t.Errorf("%s: bad second: %d not %d", test.name, time.Second(), 57)
}
// Nanoseconds must be checked against the precision of the input.
nanosec, err := strconv.ParseUint("012345678"[:test.fracDigits]+"000000000"[:9-test.fracDigits], 10, 0)
if err != nil {
panic(err)
}
if time.Nanosecond() != int(nanosec) {
t.Errorf("%s: bad nanosecond: %d not %d", test.name, time.Nanosecond(), nanosec)
}
name, offset := time.Zone()
if test.hasTZ && offset != -28800 {
t.Errorf("%s: bad tz offset: %s %d not %d", test.name, name, offset, -28800)
}
if test.hasWD && time.Weekday() != Thursday {
t.Errorf("%s: bad weekday: %s not %s", test.name, time.Weekday(), Thursday)
}
}
func TestFormatAndParse(t *testing.T) {
const fmt = "Mon MST " + RFC3339 // all fields
f := func(sec int64) bool {
t1 := Unix(sec/2, 0)
if t1.Year() < 1000 || t1.Year() > 9999 || t1.Unix() != sec {
// not required to work
return true
}
t2, err := Parse(fmt, t1.Format(fmt))
if err != nil {
t.Errorf("error: %s", err)
return false
}
if t1.Unix() != t2.Unix() || t1.Nanosecond() != t2.Nanosecond() {
t.Errorf("FormatAndParse %d: %q(%d) %q(%d)", sec, t1, t1.Unix(), t2, t2.Unix())
return false
}
return true
}
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)
}
}
type ParseTimeZoneTest struct {
value string
length int
ok bool
}
var parseTimeZoneTests = []ParseTimeZoneTest{
{"gmt hi there", 0, false},
{"GMT hi there", 3, true},
{"GMT+12 hi there", 6, true},
{"GMT+00 hi there", 6, true},
{"GMT+", 3, true},
{"GMT+3", 5, true},
{"GMT+a", 3, true},
{"GMT+3a", 5, true},
{"GMT-5 hi there", 5, true},
{"GMT-51 hi there", 3, true},
{"ChST hi there", 4, true},
{"MeST hi there", 4, true},
{"MSDx", 3, true},
{"MSDY", 0, false}, // four letters must end in T.
{"ESAST hi", 5, true},
{"ESASTT hi", 0, false}, // run of upper-case letters too long.
{"ESATY hi", 0, false}, // five letters must end in T.
{"WITA hi", 4, true}, // Issue #18251
// Issue #24071
{"+03 hi", 3, true},
{"-04 hi", 3, true},
// Issue #26032
{"+00", 3, true},
{"-11", 3, true},
{"-12", 3, true},
{"-23", 3, true},
{"-24", 0, false},
{"+13", 3, true},
{"+14", 3, true},
{"+23", 3, true},
{"+24", 0, false},
}
func TestParseTimeZone(t *testing.T) {
for _, test := range parseTimeZoneTests {
length, ok := ParseTimeZone(test.value)
if ok != test.ok {
t.Errorf("expected %t for %q got %t", test.ok, test.value, ok)
} else if length != test.length {
t.Errorf("expected %d for %q got %d", test.length, test.value, length)
}
}
}
type ParseErrorTest struct {
format string
value string
expect string // must appear within the error
}
var parseErrorTests = []ParseErrorTest{
{ANSIC, "Feb 4 21:00:60 2010", `cannot parse "Feb 4 21:00:60 2010" as "Mon"`},
{ANSIC, "Thu Feb 4 21:00:57 @2010", `cannot parse "@2010" as "2006"`},
{ANSIC, "Thu Feb 4 21:00:60 2010", "second out of range"},
{ANSIC, "Thu Feb 4 21:61:57 2010", "minute out of range"},
{ANSIC, "Thu Feb 4 24:00:60 2010", "hour out of range"},
{"Mon Jan _2 15:04:05.000 2006", "Thu Feb 4 23:00:59x01 2010", `cannot parse "x01 2010" as ".000"`},
{"Mon Jan _2 15:04:05.000 2006", "Thu Feb 4 23:00:59.xxx 2010", `cannot parse ".xxx 2010" as ".000"`},
{"Mon Jan _2 15:04:05.000 2006", "Thu Feb 4 23:00:59.-123 2010", "fractional second out of range"},
// issue 4502. StampNano requires exactly 9 digits of precision.
{StampNano, "Dec 7 11:22:01.000000", `cannot parse ".000000" as ".000000000"`},
{StampNano, "Dec 7 11:22:01.0000000000", `extra text: "0"`},
// issue 4493. Helpful errors.
{RFC3339, "2006-01-02T15:04:05Z07:00", `parsing time "2006-01-02T15:04:05Z07:00": extra text: "07:00"`},
{RFC3339, "2006-01-02T15:04_abc", `parsing time "2006-01-02T15:04_abc" as "2006-01-02T15:04:05Z07:00": cannot parse "_abc" as ":"`},
{RFC3339, "2006-01-02T15:04:05_abc", `parsing time "2006-01-02T15:04:05_abc" as "2006-01-02T15:04:05Z07:00": cannot parse "_abc" as "Z07:00"`},
{RFC3339, "2006-01-02T15:04:05Z_abc", `parsing time "2006-01-02T15:04:05Z_abc": extra text: "_abc"`},
// invalid second followed by optional fractional seconds
{RFC3339, "2010-02-04T21:00:67.012345678-08:00", "second out of range"},
// issue 54569
{RFC3339, "0000-01-01T00:00:.0+00:00", `parsing time "0000-01-01T00:00:.0+00:00" as "2006-01-02T15:04:05Z07:00": cannot parse ".0+00:00" as "05"`},
// issue 21113
{"_2 Jan 06 15:04 MST", "4 --- 00 00:00 GMT", `cannot parse "--- 00 00:00 GMT" as "Jan"`},
{"_2 January 06 15:04 MST", "4 --- 00 00:00 GMT", `cannot parse "--- 00 00:00 GMT" as "January"`},
// invalid or mismatched day-of-year
{"Jan _2 002 2006", "Feb 4 034 2006", "day-of-year does not match day"},
{"Jan _2 002 2006", "Feb 4 004 2006", "day-of-year does not match month"},
// issue 45391.
{`"2006-01-02T15:04:05Z07:00"`, "0", `parsing time "0" as "\"2006-01-02T15:04:05Z07:00\"": cannot parse "0" as "\""`},
{RFC3339, "\"", `parsing time "\"" as "2006-01-02T15:04:05Z07:00": cannot parse "\"" as "2006"`},
// issue 54570
{RFC3339, "0000-01-01T00:00:00+00:+0", `parsing time "0000-01-01T00:00:00+00:+0" as "2006-01-02T15:04:05Z07:00": cannot parse "+00:+0" as "Z07:00"`},
{RFC3339, "0000-01-01T00:00:00+-0:00", `parsing time "0000-01-01T00:00:00+-0:00" as "2006-01-02T15:04:05Z07:00": cannot parse "+-0:00" as "Z07:00"`},
// issue 56730
{"2006-01-02", "22-10-25", `parsing time "22-10-25" as "2006-01-02": cannot parse "22-10-25" as "2006"`},
{"06-01-02", "a2-10-25", `parsing time "a2-10-25" as "06-01-02": cannot parse "a2-10-25" as "06"`},
{"03:04PM", "12:03pM", `parsing time "12:03pM" as "03:04PM": cannot parse "pM" as "PM"`},
{"03:04pm", "12:03pM", `parsing time "12:03pM" as "03:04pm": cannot parse "pM" as "pm"`},
// issue 67470
{"-07", "-25", "time zone offset hour out of range"},
{"-07:00", "+25:00", "time zone offset hour out of range"},
{"-07:00", "-23:61", "time zone offset minute out of range"},
{"-07:00:00", "+23:59:61", "time zone offset second out of range"},
{"Z07", "-25", "time zone offset hour out of range"},
{"Z07:00", "+25:00", "time zone offset hour out of range"},
{"Z07:00", "-23:61", "time zone offset minute out of range"},
{"Z07:00:00", "+23:59:61", "time zone offset second out of range"},
}
func TestParseErrors(t *testing.T) {
for _, test := range parseErrorTests {
_, err := Parse(test.format, test.value)
if err == nil {
t.Errorf("expected error for %q %q", test.format, test.value)
} else if !strings.Contains(err.Error(), test.expect) {
t.Errorf("expected error with %q for %q %q; got %s", test.expect, test.format, test.value, err)
}
}
}
func TestNoonIs12PM(t *testing.T) {
noon := Date(0, January, 1, 12, 0, 0, 0, UTC)
const expect = "12:00PM"
got := noon.Format("3:04PM")
if got != expect {
t.Errorf("got %q; expect %q", got, expect)
}
got = noon.Format("03:04PM")
if got != expect {
t.Errorf("got %q; expect %q", got, expect)
}
}
func TestMidnightIs12AM(t *testing.T) {
midnight := Date(0, January, 1, 0, 0, 0, 0, UTC)
expect := "12:00AM"
got := midnight.Format("3:04PM")
if got != expect {
t.Errorf("got %q; expect %q", got, expect)
}
got = midnight.Format("03:04PM")
if got != expect {
t.Errorf("got %q; expect %q", got, expect)
}
}
func Test12PMIsNoon(t *testing.T) {
noon, err := Parse("3:04PM", "12:00PM")
if err != nil {
t.Fatal("error parsing date:", err)
}
if noon.Hour() != 12 {
t.Errorf("got %d; expect 12", noon.Hour())
}
noon, err = Parse("03:04PM", "12:00PM")
if err != nil {
t.Fatal("error parsing date:", err)
}
if noon.Hour() != 12 {
t.Errorf("got %d; expect 12", noon.Hour())
}
}
func Test12AMIsMidnight(t *testing.T) {
midnight, err := Parse("3:04PM", "12:00AM")
if err != nil {
t.Fatal("error parsing date:", err)
}
if midnight.Hour() != 0 {
t.Errorf("got %d; expect 0", midnight.Hour())
}
midnight, err = Parse("03:04PM", "12:00AM")
if err != nil {
t.Fatal("error parsing date:", err)
}
if midnight.Hour() != 0 {
t.Errorf("got %d; expect 0", midnight.Hour())
}
}
// Check that a time without a Zone still produces a (numeric) time zone
// when formatted with MST as a requested zone.
func TestMissingZone(t *testing.T) {
time, err := Parse(RubyDate, "Thu Feb 02 16:10:03 -0500 2006")
if err != nil {
t.Fatal("error parsing date:", err)
}
expect := "Thu Feb 2 16:10:03 -0500 2006" // -0500 not EST
str := time.Format(UnixDate) // uses MST as its time zone
if str != expect {
t.Errorf("got %s; expect %s", str, expect)
}
}
func TestMinutesInTimeZone(t *testing.T) {
time, err := Parse(RubyDate, "Mon Jan 02 15:04:05 +0123 2006")
if err != nil {
t.Fatal("error parsing date:", err)
}
expected := (1*60 + 23) * 60
_, offset := time.Zone()
if offset != expected {
t.Errorf("ZoneOffset = %d, want %d", offset, expected)
}
}
type SecondsTimeZoneOffsetTest struct {
format string
value string
expectedoffset int
}
var secondsTimeZoneOffsetTests = []SecondsTimeZoneOffsetTest{
{"2006-01-02T15:04:05-070000", "1871-01-01T05:33:02-003408", -(34*60 + 8)},
{"2006-01-02T15:04:05-07:00:00", "1871-01-01T05:33:02-00:34:08", -(34*60 + 8)},
{"2006-01-02T15:04:05-070000", "1871-01-01T05:33:02+003408", 34*60 + 8},
{"2006-01-02T15:04:05-07:00:00", "1871-01-01T05:33:02+00:34:08", 34*60 + 8},
{"2006-01-02T15:04:05Z070000", "1871-01-01T05:33:02-003408", -(34*60 + 8)},
{"2006-01-02T15:04:05Z07:00:00", "1871-01-01T05:33:02+00:34:08", 34*60 + 8},
{"2006-01-02T15:04:05-07", "1871-01-01T05:33:02+01", 1 * 60 * 60},
{"2006-01-02T15:04:05-07", "1871-01-01T05:33:02-02", -2 * 60 * 60},
{"2006-01-02T15:04:05Z07", "1871-01-01T05:33:02-02", -2 * 60 * 60},
}
func TestParseSecondsInTimeZone(t *testing.T) {
// should accept timezone offsets with seconds like: Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58
for _, test := range secondsTimeZoneOffsetTests {
time, err := Parse(test.format, test.value)
if err != nil {
t.Fatal("error parsing date:", err)
}
_, offset := time.Zone()
if offset != test.expectedoffset {
t.Errorf("ZoneOffset = %d, want %d", offset, test.expectedoffset)
}
}
}
func TestFormatSecondsInTimeZone(t *testing.T) {
for _, test := range secondsTimeZoneOffsetTests {
d := Date(1871, 1, 1, 5, 33, 2, 0, FixedZone("LMT", test.expectedoffset))
timestr := d.Format(test.format)
if timestr != test.value {
t.Errorf("Format = %s, want %s", timestr, test.value)
}
}
}
// Issue 11334.
func TestUnderscoreTwoThousand(t *testing.T) {
format := "15:04_20060102"
input := "14:38_20150618"
time, err := Parse(format, input)
if err != nil {
t.Error(err)
}
if y, m, d := time.Date(); y != 2015 || m != 6 || d != 18 {
t.Errorf("Incorrect y/m/d, got %d/%d/%d", y, m, d)
}
if h := time.Hour(); h != 14 {
t.Errorf("Incorrect hour, got %d", h)
}
if m := time.Minute(); m != 38 {
t.Errorf("Incorrect minute, got %d", m)
}
}
// Issue 29918, 29916
func TestStd0xParseError(t *testing.T) {
tests := []struct {
format, value, valueElemPrefix string
}{
{"01 MST", "0 MST", "0"},
{"01 MST", "1 MST", "1"},
{RFC850, "Thursday, 04-Feb-1 21:00:57 PST", "1"},
}
for _, tt := range tests {
_, err := Parse(tt.format, tt.value)
if err == nil {
t.Errorf("Parse(%q, %q) did not fail as expected", tt.format, tt.value)
} else if perr, ok := err.(*ParseError); !ok {
t.Errorf("Parse(%q, %q) returned error type %T, expected ParseError", tt.format, tt.value, perr)
} else if !strings.Contains(perr.Error(), "cannot parse") || !strings.HasPrefix(perr.ValueElem, tt.valueElemPrefix) {
t.Errorf("Parse(%q, %q) returned wrong parsing error message: %v", tt.format, tt.value, perr)
}
}
}
var monthOutOfRangeTests = []struct {
value string
ok bool
}{
{"00-01", false},
{"13-01", false},
{"01-01", true},
}
func TestParseMonthOutOfRange(t *testing.T) {
for _, test := range monthOutOfRangeTests {
_, err := Parse("01-02", test.value)
switch {
case !test.ok && err != nil:
if !strings.Contains(err.Error(), "month out of range") {
t.Errorf("%q: expected 'month' error, got %v", test.value, err)
}
case test.ok && err != nil:
t.Errorf("%q: unexpected error: %v", test.value, err)
case !test.ok && err == nil:
t.Errorf("%q: expected 'month' error, got none", test.value)
}
}
}
// Issue 37387.
func TestParseYday(t *testing.T) {
t.Parallel()
for i := 1; i <= 365; i++ {
d := fmt.Sprintf("2020-%03d", i)
tm, err := Parse("2006-002", d)
if err != nil {
t.Errorf("unexpected error for %s: %v", d, err)
} else if tm.Year() != 2020 || tm.YearDay() != i {
t.Errorf("got year %d yearday %d, want %d %d", tm.Year(), tm.YearDay(), 2020, i)
}
}
}
// Issue 45391.
func TestQuote(t *testing.T) {
tests := []struct {
s, want string
}{
{`"`, `"\""`},
{`abc"xyz"`, `"abc\"xyz\""`},
{"", `""`},
{"abc", `"abc"`},
{`☺`, `"\xe2\x98\xba"`},
{`☺ hello ☺ hello`, `"\xe2\x98\xba hello \xe2\x98\xba hello"`},
{"\x04", `"\x04"`},
}
for _, tt := range tests {
if q := Quote(tt.s); q != tt.want {
t.Errorf("Quote(%q) = got %q, want %q", tt.s, q, tt.want)
}
}
}
// Issue 48037
func TestFormatFractionalSecondSeparators(t *testing.T) {
tests := []struct {
s, want string
}{
{`15:04:05.000`, `21:00:57.012`},
{`15:04:05.999`, `21:00:57.012`},
{`15:04:05,000`, `21:00:57,012`},
{`15:04:05,999`, `21:00:57,012`},
}
// The numeric time represents Thu Feb 4 21:00:57.012345600 PST 2009
time := Unix(0, 1233810057012345600)
for _, tt := range tests {
if q := time.Format(tt.s); q != tt.want {
t.Errorf("Format(%q) = got %q, want %q", tt.s, q, tt.want)
}
}
}
var longFractionalDigitsTests = []struct {
value string
want int
}{
// 9 digits
{"2021-09-29T16:04:33.000000000Z", 0},
{"2021-09-29T16:04:33.000000001Z", 1},
{"2021-09-29T16:04:33.100000000Z", 100_000_000},
{"2021-09-29T16:04:33.100000001Z", 100_000_001},
{"2021-09-29T16:04:33.999999999Z", 999_999_999},
{"2021-09-29T16:04:33.012345678Z", 12_345_678},
// 10 digits, truncates
{"2021-09-29T16:04:33.0000000000Z", 0},
{"2021-09-29T16:04:33.0000000001Z", 0},
{"2021-09-29T16:04:33.1000000000Z", 100_000_000},
{"2021-09-29T16:04:33.1000000009Z", 100_000_000},
{"2021-09-29T16:04:33.9999999999Z", 999_999_999},
{"2021-09-29T16:04:33.0123456789Z", 12_345_678},
// 11 digits, truncates
{"2021-09-29T16:04:33.10000000000Z", 100_000_000},
{"2021-09-29T16:04:33.00123456789Z", 1_234_567},
// 12 digits, truncates
{"2021-09-29T16:04:33.000123456789Z", 123_456},
// 15 digits, truncates
{"2021-09-29T16:04:33.9999999999999999Z", 999_999_999},
}
// Issue 48685 and 54567.
func TestParseFractionalSecondsLongerThanNineDigits(t *testing.T) {
for _, tt := range longFractionalDigitsTests {
for _, format := range []string{RFC3339, RFC3339Nano} {
tm, err := Parse(format, tt.value)
if err != nil {
t.Errorf("Parse(%q, %q) error: %v", format, tt.value, err)
continue
}
if got := tm.Nanosecond(); got != tt.want {
t.Errorf("Parse(%q, %q) = got %d, want %d", format, tt.value, got, tt.want)
}
}
}
}
func FuzzFormatRFC3339(f *testing.F) {
for _, ts := range [][2]int64{
{math.MinInt64, math.MinInt64}, // 292277026304-08-26T15:42:51Z
{-62167219200, 0}, // 0000-01-01T00:00:00Z
{1661201140, 676836973}, // 2022-08-22T20:45:40.676836973Z
{253402300799, 999999999}, // 9999-12-31T23:59:59.999999999Z