diff --git a/packages/surveys/src/lib/language-display-name.test.ts b/packages/surveys/src/lib/language-display-name.test.ts
index 3627749499..eb35519411 100644
--- a/packages/surveys/src/lib/language-display-name.test.ts
+++ b/packages/surveys/src/lib/language-display-name.test.ts
@@ -4,8 +4,8 @@ import { getLanguageDisplayName } from "./language-display-name";
 describe("getLanguageDisplayName", () => {
   test("returns native name for common language codes", () => {
     expect(getLanguageDisplayName("de")).toBe("Deutsch");
-    expect(getLanguageDisplayName("fr")).toBe("français");
-    expect(getLanguageDisplayName("es")).toBe("español");
+    expect(getLanguageDisplayName("fr")).toBe("Français");
+    expect(getLanguageDisplayName("es")).toBe("Español");
     expect(getLanguageDisplayName("ja")).toBe("日本語");
     expect(getLanguageDisplayName("ko")).toBe("한국어");
     expect(getLanguageDisplayName("ar")).toBe("العربية");
@@ -13,25 +13,25 @@ describe("getLanguageDisplayName", () => {
   });
 
   test("returns native name for regional variants", () => {
-    expect(getLanguageDisplayName("pt-BR")).toBe("português (Brasil)");
+    expect(getLanguageDisplayName("pt-BR")).toBe("Português (Brasil)");
     expect(getLanguageDisplayName("de-AT")).toBe("Österreichisches Deutsch");
-    expect(getLanguageDisplayName("fr-CA")).toBe("français canadien");
+    expect(getLanguageDisplayName("fr-CA")).toBe("Français canadien");
     expect(getLanguageDisplayName("zh-Hans")).toBe("简体中文");
     expect(getLanguageDisplayName("zh-Hant")).toBe("繁體中文");
   });
 
   test("returns native name for less common codes", () => {
     expect(getLanguageDisplayName("aa")).toBe("Afar");
-    expect(getLanguageDisplayName("is")).toBe("íslenska");
+    expect(getLanguageDisplayName("is")).toBe("Íslenska");
     expect(getLanguageDisplayName("cy")).toBe("Cymraeg");
-    expect(getLanguageDisplayName("eu")).toBe("euskara");
+    expect(getLanguageDisplayName("eu")).toBe("Euskara");
     expect(getLanguageDisplayName("vo")).toBe("Volapük");
     expect(getLanguageDisplayName("bo")).toBe("བོད་སྐད་");
   });
 
   test("returns raw code for unknown codes", () => {
-    expect(getLanguageDisplayName("xx")).toBe("xx");
-    expect(getLanguageDisplayName("unknown")).toBe("unknown");
+    expect(getLanguageDisplayName("xx")).toBe("Xx");
+    expect(getLanguageDisplayName("unknown")).toBe("Unknown");
   });
 
   test("returns empty string for empty input", () => {