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// Copyright 2014 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 (
"errors"
"fmt"
"os"
"reflect"
"testing"
"time"
)
func init() {
if time.ZoneinfoForTesting() != nil {
panic(fmt.Errorf("zoneinfo initialized before first LoadLocation"))
}
}
func TestEnvVarUsage(t *testing.T) {
time.ResetZoneinfoForTesting()
const testZoneinfo = "foo.zip"
const env = "ZONEINFO"
defer os.Setenv(env, os.Getenv(env))
os.Setenv(env, testZoneinfo)
// Result isn't important, we're testing the side effect of this command
time.LoadLocation("Asia/Jerusalem")
defer time.ResetZoneinfoForTesting()
if zoneinfo := time.ZoneinfoForTesting(); testZoneinfo != *zoneinfo {
t.Errorf("zoneinfo does not match env variable: got %q want %q", *zoneinfo, testZoneinfo)
}
}
func TestBadLocationErrMsg(t *testing.T) {
time.ResetZoneinfoForTesting()
loc := "Asia/SomethingNotExist"
want := errors.New("unknown time zone " + loc)
_, err := time.LoadLocation(loc)
if err.Error() != want.Error() {
t.Errorf("LoadLocation(%q) error = %v; want %v", loc, err, want)
}
}
func TestLoadLocationValidatesNames(t *testing.T) {
time.ResetZoneinfoForTesting()
const env = "ZONEINFO"
defer os.Setenv(env, os.Getenv(env))
os.Setenv(env, "")
bad := []string{
"/usr/foo/Foo",
"\\UNC\foo",
"..",
"a..",
}
for _, v := range bad {
_, err := time.LoadLocation(v)
if err != time.ErrLocation {
t.Errorf("LoadLocation(%q) error = %v; want ErrLocation", v, err)
}
}
}
func TestVersion3(t *testing.T) {
time.ForceZipFileForTesting(true)
defer time.ForceZipFileForTesting(false)
_, err := time.LoadLocation("Asia/Jerusalem")
if err != nil {
t.Fatal(err)
}
}
// Test that we get the correct results for times before the first
// transition time. To do this we explicitly check early dates in a
// couple of specific timezones.
func TestFirstZone(t *testing.T) {
time.ForceZipFileForTesting(true)
defer time.ForceZipFileForTesting(false)
const format = "Mon, 02 Jan 2006 15:04:05 -0700 (MST)"
var tests = []struct {
zone string
unix int64
want1 string
want2 string
}{
{
"PST8PDT",
-1633269601,
"Sun, 31 Mar 1918 01:59:59 -0800 (PST)",
"Sun, 31 Mar 1918 03:00:00 -0700 (PDT)",
},
{
"Pacific/Fakaofo",
1325242799,
"Thu, 29 Dec 2011 23:59:59 -1100 (-11)",
"Sat, 31 Dec 2011 00:00:00 +1300 (+13)",
},
}
for _, test := range tests {
z, err := time.LoadLocation(test.zone)
if err != nil {
t.Fatal(err)
}
s := time.Unix(test.unix, 0).In(z).Format(format)
if s != test.want1 {
t.Errorf("for %s %d got %q want %q", test.zone, test.unix, s, test.want1)
}
s = time.Unix(test.unix+1, 0).In(z).Format(format)
if s != test.want2 {
t.Errorf("for %s %d got %q want %q", test.zone, test.unix, s, test.want2)
}
}
}
func TestLocationNames(t *testing.T) {
if time.Local.String() != "Local" {
t.Errorf(`invalid Local location name: got %q want "Local"`, time.Local)
}
if time.UTC.String() != "UTC" {
t.Errorf(`invalid UTC location name: got %q want "UTC"`, time.UTC)
}
}
func TestLoadLocationFromTZData(t *testing.T) {
time.ForceZipFileForTesting(true)
defer time.ForceZipFileForTesting(false)
const locationName = "Asia/Jerusalem"
reference, err := time.LoadLocation(locationName)
if err != nil {
t.Fatal(err)
}
tzinfo, err := time.LoadTzinfo(locationName, time.OrigZoneSources[len(time.OrigZoneSources)-1])
if err != nil {
t.Fatal(err)
}
sample, err := time.LoadLocationFromTZData(locationName, tzinfo)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(reference, sample) {
t.Errorf("return values of LoadLocationFromTZData and LoadLocation don't match")
}
}
// Issue 30099.
func TestEarlyLocation(t *testing.T) {
time.ForceZipFileForTesting(true)
defer time.ForceZipFileForTesting(false)
const locName = "America/New_York"
loc, err := time.LoadLocation(locName)
if err != nil {
t.Fatal(err)
}
d := time.Date(1900, time.January, 1, 0, 0, 0, 0, loc)
tzName, tzOffset := d.Zone()
if want := "EST"; tzName != want {
t.Errorf("Zone name == %s, want %s", tzName, want)
}
if want := -18000; tzOffset != want {
t.Errorf("Zone offset == %d, want %d", tzOffset, want)
}
}
func TestMalformedTZData(t *testing.T) {
// The goal here is just that malformed tzdata results in an error, not a panic.
issue29437 := "TZif\x00000000000000000\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0000"
_, err := time.LoadLocationFromTZData("abc", []byte(issue29437))
if err == nil {
t.Error("expected error, got none")
}
}
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