blob: 36943f0766e1ac5bb26c4b783da7b735325c0a8c [file] [log] [blame] [edit]
package colltab
import (
"testing"
"golang.org/x/text/language"
)
func TestMatchLang(t *testing.T) {
tags := []language.Tag{
0: language.Und,
1: language.MustParse("bs"),
2: language.German,
3: language.English,
4: language.AmericanEnglish,
5: language.MustParse("en-US-u-va-posix"),
6: language.Portuguese,
7: language.Serbian,
8: language.MustParse("sr-Latn"),
9: language.Chinese,
10: language.MustParse("zh-u-co-stroke"),
11: language.MustParse("zh-Hant-u-co-pinyin"),
12: language.TraditionalChinese,
}
for i, tc := range []struct {
x int
t language.Tag
}{
{0, language.Und},
{0, language.Persian}, // Default to first element when no match.
{3, language.English},
{4, language.AmericanEnglish},
{5, language.MustParse("en-US-u-va-posix")}, // Ext. variant match.
{4, language.MustParse("en-US-u-va-noposix")}, // Ext. variant mismatch.
{3, language.MustParse("en-UK-u-va-noposix")}, // Ext. variant mismatch.
{7, language.Serbian},
{0, language.Croatian}, // Don't match to close language!
{0, language.MustParse("gsw")}, // Don't match to close language!
{1, language.MustParse("bs-Cyrl")}, // Odd, but correct.
{1, language.MustParse("bs-Latn")}, // Estimated script drops.
{8, language.MustParse("sr-Latn")},
{9, language.Chinese},
{9, language.SimplifiedChinese},
{12, language.TraditionalChinese},
{11, language.MustParse("zh-Hant-u-co-pinyin")},
// TODO: should this be 12? Either inherited value (10) or default is
// fine in this case, though. Other locales are not affected.
{10, language.MustParse("zh-Hant-u-co-stroke")},
// There is no "phonebk" sorting order for zh-Hant, so use default.
{12, language.MustParse("zh-Hant-u-co-phonebk")},
{10, language.MustParse("zh-u-co-stroke")},
{12, language.MustParse("und-TW")}, // Infer script and language.
{12, language.MustParse("und-HK")}, // Infer script and language.
{6, language.MustParse("und-BR")}, // Infer script and language.
{6, language.MustParse("und-PT")}, // Infer script and language.
{2, language.MustParse("und-Latn-DE")}, // Infer language.
{0, language.MustParse("und-Jpan-BR")}, // Infers "ja", so no match.
{0, language.MustParse("zu")}, // No match past index.
} {
t.Run(tc.t.String(), func(t *testing.T) {
if x := MatchLang(tc.t, tags); x != tc.x {
t.Errorf("%d: MatchLang(%q, tags) = %d; want %d", i, tc.t, x, tc.x)
}
})
}
}