| 1 | package localeenv |
| 2 | |
| 3 | import ( |
| 4 | "reflect" |
| 5 | "testing" |
| 6 | ) |
| 7 | |
| 8 | func TestDefaultPreservesExplicitLocale(t *testing.T) { |
| 9 | for _, key := range []string{"LANG", "LC_ALL", "LC_CTYPE"} { |
| 10 | for _, value := range []string{"C", "POSIX", "zh_CN.GB18030", "en_US.UTF-8"} { |
| 11 | env := []string{"PATH=/bin", key + "=" + value} |
| 12 | if got := withDefault(env, "C.UTF-8"); !reflect.DeepEqual(got, env) { |
| 13 | t.Fatalf("changed explicit locale: %v", got) |
| 14 | } |
| 15 | } |
| 16 | } |
| 17 | } |
| 18 | |
| 19 | func TestDefaultOnlyFillsMissingLocale(t *testing.T) { |
| 20 | env := []string{"PATH=/bin", "LANG=", "LC_ALL=", "LC_COLLATE=C"} |
| 21 | want := []string{"PATH=/bin", "LC_ALL=", "LC_COLLATE=C", "LANG=C.UTF-8"} |
| 22 | if got := withDefault(env, "C.UTF-8"); !reflect.DeepEqual(got, want) { |
| 23 | t.Fatalf("got %v", got) |
| 24 | } |
| 25 | if env[1] != "LANG=" { |
| 26 | t.Fatal("mutated source environment") |
| 27 | } |
| 28 | if got := withDefault(env, ""); !reflect.DeepEqual(got, env) { |
| 29 | t.Fatal("invented unavailable locale") |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | func TestSelectInstalledUTF8(t *testing.T) { |
| 34 | for input, want := range map[string]string{ |
| 35 | "C\nPOSIX\nen_US.UTF-8\n": "en_US.UTF-8", |
| 36 | "en_US.utf8\nC.utf8\n": "C.utf8", |
| 37 | "C\nPOSIX\n": "", |
| 38 | "C\nzh_CN.UTF-8\n": "zh_CN.UTF-8", |
| 39 | } { |
| 40 | if got := selectUTF8(input); got != want { |
| 41 | t.Fatalf("got %q want %q", got, want) |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 |