39 lines
1.1 KiB
Go
39 lines
1.1 KiB
Go
package timezone
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import (
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"crypto/sha256"
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"fmt"
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"testing"
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"time"
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)
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func TestFrozenSnapshot(t *testing.T) {
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if got := fmt.Sprintf("%x", sha256.Sum256(data)); got != "b2d18a7c8fa8142097a48c99609fb3c92db5ee98bc740294e57eab8ae9f94779" {
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t.Fatal("snapshot changed without a new version")
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}
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t.Setenv("ZONEINFO", t.TempDir())
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for _, name := range []string{"UTC", "Asia/Shanghai", "America/New_York", "Australia/Lord_Howe", "Pacific/Apia"} {
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zone, err := Load(name, Version)
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if err != nil || zone == nil {
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t.Fatalf("load %s: %v", name, err)
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}
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again, err := Load(name, Version)
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if err != nil || again != zone {
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t.Fatal("cache changed")
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}
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}
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zone, _ := Load("Asia/Shanghai", Version)
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_, offset := time.Date(2026, 1, 1, 0, 0, 0, 0, zone).Zone()
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if offset != 8*3600 {
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t.Fatal("wrong frozen zone")
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}
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for _, name := range []string{"", "Local", "../UTC", "/etc/localtime"} {
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if _, err := Load(name, Version); err == nil {
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t.Fatal("accepted external timezone")
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}
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}
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if _, err := Load("UTC", "unavailable-version"); err == nil {
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t.Fatal("silently upgraded frozen version")
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}
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}
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