8dc2499aa6
gotools/ * Makefile.am (go_cmd_cgo_files): Add ast_go118.go (check-go-tool): Copy golang.org/x/tools directories. * Makefile.in: Regenerate. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/384695
91 lines
2.4 KiB
Go
91 lines
2.4 KiB
Go
// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build aix || (darwin && !ios) || dragonfly || freebsd || (linux && !android) || netbsd || openbsd || solaris
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package time_test
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import (
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"os"
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"testing"
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"time"
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)
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func TestEnvTZUsage(t *testing.T) {
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const env = "TZ"
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tz, ok := os.LookupEnv(env)
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if !ok {
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defer os.Unsetenv(env)
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} else {
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defer os.Setenv(env, tz)
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}
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defer time.ForceUSPacificForTesting()
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localZoneName := "Local"
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// The file may not exist.
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if _, err := os.Stat("/etc/localtime"); os.IsNotExist(err) {
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localZoneName = "UTC"
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}
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cases := []struct {
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nilFlag bool
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tz string
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local string
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}{
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// no $TZ means use the system default /etc/localtime.
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{true, "", localZoneName},
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// $TZ="" means use UTC.
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{false, "", "UTC"},
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{false, ":", "UTC"},
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{false, "Asia/Shanghai", "Asia/Shanghai"},
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{false, ":Asia/Shanghai", "Asia/Shanghai"},
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{false, "/etc/localtime", localZoneName},
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{false, ":/etc/localtime", localZoneName},
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}
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for _, c := range cases {
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time.ResetLocalOnceForTest()
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if c.nilFlag {
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os.Unsetenv(env)
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} else {
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os.Setenv(env, c.tz)
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}
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if time.Local.String() != c.local {
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t.Errorf("invalid Local location name for %q: got %q want %q", c.tz, time.Local, c.local)
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}
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}
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time.ResetLocalOnceForTest()
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// The file may not exist on Solaris 2 and IRIX 6.
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path := "/usr/share/zoneinfo/Asia/Shanghai"
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os.Setenv(env, path)
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if _, err := os.Stat(path); os.IsNotExist(err) {
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if time.Local.String() != "UTC" {
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t.Errorf(`invalid path should fallback to UTC: got %q want "UTC"`, time.Local)
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}
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return
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}
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if time.Local.String() != path {
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t.Errorf(`custom path should lead to path itself: got %q want %q`, time.Local, path)
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}
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timeInUTC := time.Date(2009, 1, 1, 12, 0, 0, 0, time.UTC)
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sameTimeInShanghai := time.Date(2009, 1, 1, 20, 0, 0, 0, time.Local)
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if !timeInUTC.Equal(sameTimeInShanghai) {
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t.Errorf("invalid timezone: got %q want %q", timeInUTC, sameTimeInShanghai)
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}
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time.ResetLocalOnceForTest()
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os.Setenv(env, ":"+path)
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if time.Local.String() != path {
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t.Errorf(`custom path should lead to path itself: got %q want %q`, time.Local, path)
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}
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time.ResetLocalOnceForTest()
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os.Setenv(env, path[:len(path)-1])
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if time.Local.String() != "UTC" {
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t.Errorf(`invalid path should fallback to UTC: got %q want "UTC"`, time.Local)
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}
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}
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