Files
tapir/internal/domain/language_test.go
T
mathiasandClaude Sonnet 5.5 8e4872d2e7 feat(domain): Language, a closed set carried to the engines on the context (#61)
sv and auto; an empty form value is sv, anything else is refused. LanguageFrom defaults to
sv so a caller that sets nothing behaves as before.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-04 22:25:51 +02:00

42 lines
1.2 KiB
Go

package domain_test
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"git.d-ma.be/mathias/tapir/internal/domain"
)
func TestParseLanguage_KnownValuesAndEmptyAreAcceptedEverythingElseIsNot(t *testing.T) {
tests := []struct {
in string
want domain.Language
wantOK bool
}{
{"sv", domain.LangSwedish, true},
{"auto", domain.LangAuto, true},
{"", domain.LangSwedish, true}, // a client that sends no field keeps today's behaviour
{"SV", "", false}, // exact match: the value reaches a request field
{" sv", "", false},
{"sv\n", "", false},
{"en", "", false}, // a specific other language is not offered yet
{"sv,en", "", false},
{"../sv", "", false},
}
for _, tt := range tests {
t.Run(tt.in, func(t *testing.T) {
got, ok := domain.ParseLanguage(tt.in)
assert.Equal(t, tt.wantOK, ok)
assert.Equal(t, tt.want, got)
})
}
}
func TestLanguageFrom_IsSwedishWhenTheContextCarriesNoneAndOtherwiseWhatWasSet(t *testing.T) {
assert.Equal(t, domain.LangSwedish, domain.LanguageFrom(context.Background()))
ctx := domain.WithLanguage(context.Background(), domain.LangAuto)
assert.Equal(t, domain.LangAuto, domain.LanguageFrom(ctx))
}