vendor/golang.org/x/text/internal/colltab/colltab_test.go

   1 package colltab
   2
   3 import (
   4         "testing"
   5
   6         "golang.org/x/text/language"
   7 )
   8
   9 func TestMatchLang(t *testing.T) {
  10         tags := []language.Tag{
  11                 0:  language.Und,
  12                 1:  language.MustParse("bs"),
  13                 2:  language.German,
  14                 3:  language.English,
  15                 4:  language.AmericanEnglish,
  16                 5:  language.MustParse("en-US-u-va-posix"),
  17                 6:  language.Portuguese,
  18                 7:  language.Serbian,
  19                 8:  language.MustParse("sr-Latn"),
  20                 9:  language.Chinese,
  21                 10: language.MustParse("zh-u-co-stroke"),
  22                 11: language.MustParse("zh-Hant-u-co-pinyin"),
  23                 12: language.TraditionalChinese,
  24         }
  25         for i, tc := range []struct {
  26                 x int
  27                 t language.Tag
  28         }{
  29                 {0, language.Und},
  30                 {0, language.Persian}, // Default to first element when no match.
  31                 {3, language.English},
  32                 {4, language.AmericanEnglish},
  33                 {5, language.MustParse("en-US-u-va-posix")},   // Ext. variant match.
  34                 {4, language.MustParse("en-US-u-va-noposix")}, // Ext. variant mismatch.
  35                 {3, language.MustParse("en-UK-u-va-noposix")}, // Ext. variant mismatch.
  36                 {7, language.Serbian},
  37                 {0, language.Croatian},             // Don't match to close language!
  38                 {0, language.MustParse("gsw")},     // Don't match to close language!
  39                 {1, language.MustParse("bs-Cyrl")}, // Odd, but correct.
  40                 {1, language.MustParse("bs-Latn")}, // Estimated script drops.
  41                 {8, language.MustParse("sr-Latn")},
  42                 {9, language.Chinese},
  43                 {9, language.SimplifiedChinese},
  44                 {12, language.TraditionalChinese},
  45                 {11, language.MustParse("zh-Hant-u-co-pinyin")},
  46                 // TODO: should this be 12? Either inherited value (10) or default is
  47                 // fine in this case, though. Other locales are not affected.
  48                 {10, language.MustParse("zh-Hant-u-co-stroke")},
  49                 // There is no "phonebk" sorting order for zh-Hant, so use default.
  50                 {12, language.MustParse("zh-Hant-u-co-phonebk")},
  51                 {10, language.MustParse("zh-u-co-stroke")},
  52                 {12, language.MustParse("und-TW")},     // Infer script and language.
  53                 {12, language.MustParse("und-HK")},     // Infer script and language.
  54                 {6, language.MustParse("und-BR")},      // Infer script and language.
  55                 {6, language.MustParse("und-PT")},      // Infer script and language.
  56                 {2, language.MustParse("und-Latn-DE")}, // Infer language.
  57                 {0, language.MustParse("und-Jpan-BR")}, // Infers "ja", so no match.
  58                 {0, language.MustParse("zu")},          // No match past index.
  59         } {
  60                 if x := MatchLang(tc.t, tags); x != tc.x {
  61                         t.Errorf("%d: MatchLang(%q, tags) = %d; want %d", i, tc.t, x, tc.x)
  62                 }
  63         }
  64 }