github.com/slayercat/go@v0.0.0-20170428012452-c51559813f61/src/time/zoneinfo_windows_test.go (about)

     1  // Copyright 2013 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package time_test
     6  
     7  import (
     8  	"internal/syscall/windows/registry"
     9  	"testing"
    10  	. "time"
    11  )
    12  
    13  func testZoneAbbr(t *testing.T) {
    14  	t1 := Now()
    15  	// discard nsec
    16  	t1 = Date(t1.Year(), t1.Month(), t1.Day(), t1.Hour(), t1.Minute(), t1.Second(), 0, t1.Location())
    17  	t2, err := Parse(RFC1123, t1.Format(RFC1123))
    18  	if err != nil {
    19  		t.Fatalf("Parse failed: %v", err)
    20  	}
    21  	if t1 != t2 {
    22  		t.Fatalf("t1 (%v) is not equal to t2 (%v)", t1, t2)
    23  	}
    24  }
    25  
    26  func TestLocalZoneAbbr(t *testing.T) {
    27  	ResetLocalOnceForTest() // reset the Once to trigger the race
    28  	defer ForceUSPacificForTesting()
    29  	testZoneAbbr(t)
    30  }
    31  
    32  func TestAusZoneAbbr(t *testing.T) {
    33  	ForceAusForTesting()
    34  	defer ForceUSPacificForTesting()
    35  	testZoneAbbr(t)
    36  }
    37  
    38  func TestToEnglishName(t *testing.T) {
    39  	const want = "Central Europe Standard Time"
    40  	k, err := registry.OpenKey(registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\`+want, registry.READ)
    41  	if err != nil {
    42  		t.Fatalf("cannot open CEST time zone information from registry: %s", err)
    43  	}
    44  	defer k.Close()
    45  
    46  	var std, dlt string
    47  	if err = registry.LoadRegLoadMUIString(); err == nil {
    48  		// Try MUI_Std and MUI_Dlt first, fallback to Std and Dlt if *any* error occurs
    49  		std, err = k.GetMUIStringValue("MUI_Std")
    50  		if err == nil {
    51  			dlt, err = k.GetMUIStringValue("MUI_Dlt")
    52  		}
    53  	}
    54  	if err != nil { // Fallback to Std and Dlt
    55  		if std, _, err = k.GetStringValue("Std"); err != nil {
    56  			t.Fatalf("cannot read CEST Std registry key: %s", err)
    57  		}
    58  		if dlt, _, err = k.GetStringValue("Dlt"); err != nil {
    59  			t.Fatalf("cannot read CEST Dlt registry key: %s", err)
    60  		}
    61  	}
    62  
    63  	name, err := ToEnglishName(std, dlt)
    64  	if err != nil {
    65  		t.Fatalf("toEnglishName failed: %s", err)
    66  	}
    67  	if name != want {
    68  		t.Fatalf("english name: %q, want: %q", name, want)
    69  	}
    70  }