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registry_test.go
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registry_test.go
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package zyt
import (
"testing"
"github.com/google/go-cmp/cmp"
"github.com/hansmi/zyt/internal/xtextlanguage"
"golang.org/x/text/language"
)
func TestDefaultBest(t *testing.T) {
for _, tc := range []struct {
name string
tag language.Tag
want language.Tag
wantConfidence language.Confidence
}{
{
name: "empty",
want: language.English,
wantConfidence: language.No,
},
{
name: "en-us",
tag: language.AmericanEnglish,
want: language.English,
wantConfidence: language.Exact,
},
{
name: "en-gb",
tag: language.BritishEnglish,
want: language.English,
wantConfidence: language.High,
},
{
name: "de",
tag: language.German,
want: language.German,
wantConfidence: language.Exact,
},
{
name: "de-at",
tag: xtextlanguage.MustCompose(language.German, language.MustParseRegion("at")),
want: xtextlanguage.MustCompose(language.German, language.MustParseRegion("at")),
wantConfidence: language.Exact,
},
{
name: "de-ch",
tag: xtextlanguage.MustCompose(language.German, language.MustParseRegion("ch")),
want: language.German,
wantConfidence: language.High,
},
{
name: "fr",
tag: language.French,
want: language.English,
wantConfidence: language.No,
},
} {
t.Run(tc.name, func(t *testing.T) {
got, c := Best(tc.tag)
if diff := cmp.Diff(tc.want, got.Tag(), cmp.Comparer(func(a, b language.Tag) bool {
return a == b
})); diff != "" {
t.Errorf("Best() locale diff (-want +got):\n%s", diff)
}
if diff := cmp.Diff(tc.wantConfidence, c); diff != "" {
t.Errorf("Best() confidence diff (-want +got):\n%s", diff)
}
})
}
}