Localize user-facing UI, agent output, and backend messages to Simplified Chinese

sidequestion/sidequestion_localized_test.go

@@ -7,25 +7,25 @@ import (
 	"unicode"
 )
 
-// assertKorean fails if msg is empty, carries a CJK Han ideograph (= leftover
-// untranslated Chinese), or has no Hangul at all. ASCII field names and the
-// "1–4000"-style ranges are fine; only Han marks an unlocalized string.
-func assertKorean(t *testing.T, label, msg string) {
+// assertChinese fails if msg is empty, carries Hangul (= leftover untranslated
+// Korean), or has no Han ideograph at all. ASCII field names and the
+// "1–4000"-style ranges are fine; only Hangul marks an unlocalized string.
+func assertChinese(t *testing.T, label, msg string) {
 	t.Helper()
 	if msg == "" {
 		t.Fatalf("%s: 빈 메시지", label)
 	}
-	hangul := false
+	han := false
 	for _, r := range msg {
-		if unicode.Is(unicode.Han, r) {
-			t.Fatalf("%s: 중국어 한자가 남아 있습니다: %q", label, msg)
-		}
 		if unicode.Is(unicode.Hangul, r) {
-			hangul = true
+			t.Fatalf("%s: 한국어가 남아 있습니다: %q", label, msg)
+		}
+		if unicode.Is(unicode.Han, r) {
+			han = true
 		}
 	}
-	if !hangul {
-		t.Fatalf("%s: 한글이 없습니다: %q", label, msg)
+	if !han {
+		t.Fatalf("%s: 汉字缺失: %q", label, msg)
 	}
 }
 
@@ -34,16 +34,16 @@ func assertKorean(t *testing.T, label, msg string) {
 // These surface through /api/.../side-questions into the chat 곁질문 panel, so a
 // revert to Chinese here is a user-visible regression and must fail the build.
 func TestSideQuestionOutputsLocalized(t *testing.T) {
-	assertKorean(t, "ErrContextBudget", ErrContextBudget.Error())
-	assertKorean(t, "errSideModelInterrupted", errSideModelInterrupted.Error())
-	assertKorean(t, "errSideNoAnswer", errSideNoAnswer.Error())
-	assertKorean(t, "msgSideToolUnavailable", msgSideToolUnavailable)
-	assertKorean(t, "errSideSummaryCallCap", errSideSummaryCallCap.Error())
-	assertKorean(t, "sideSummaryFailedPrefix", sideSummaryFailedPrefix)
-	assertKorean(t, "errSideSummaryIncomplete", errSideSummaryIncomplete.Error())
-	assertKorean(t, "errSideSummaryOverBudget", errSideSummaryOverBudget.Error())
-	assertKorean(t, "errSideHistoryCursor", errSideHistoryCursor.Error())
-	assertKorean(t, "errSideCompactionStalled", errSideCompactionStalled.Error())
+	assertChinese(t, "ErrContextBudget", ErrContextBudget.Error())
+	assertChinese(t, "errSideModelInterrupted", errSideModelInterrupted.Error())
+	assertChinese(t, "errSideNoAnswer", errSideNoAnswer.Error())
+	assertChinese(t, "msgSideToolUnavailable", msgSideToolUnavailable)
+	assertChinese(t, "errSideSummaryCallCap", errSideSummaryCallCap.Error())
+	assertChinese(t, "sideSummaryFailedPrefix", sideSummaryFailedPrefix)
+	assertChinese(t, "errSideSummaryIncomplete", errSideSummaryIncomplete.Error())
+	assertChinese(t, "errSideSummaryOverBudget", errSideSummaryOverBudget.Error())
+	assertChinese(t, "errSideHistoryCursor", errSideHistoryCursor.Error())
+	assertChinese(t, "errSideCompactionStalled", errSideCompactionStalled.Error())
 }
 
 // TestSideQuestionBudgetSentinelPreserved: localizing the message must not break