not ignoring Translation.ts but unit test and bug fixed

src/main/java/tech/jhipster/lite/generator/client/vue/i18n/domain/VueI18nModuleFactory.java

@@ -65,7 +65,6 @@ public JHipsterModule buildModule(JHipsterModuleProperties properties) {
         .and()
         .in(path("./vitest.config.ts"))
           .add(lineAfterRegex("test:"), properties.indentation().times(2) + "setupFiles: ['./src/test/setupTests.ts'],")
-          .add(lineAfterText("'src/main/webapp/app/main.ts',"), properties.indentation().times(4) + "'src/main/webapp/app/Translations.ts',")
           .and()
         .and()
       .build();

src/main/resources/generator/client/common/i18n/Translations.ts

@@ -10,13 +10,13 @@ const toLanguage = ([key, value]: [string, ResourceKey]): [string, ResourceLangu
   },
 ];
 
-const mergeTranslations = (translations: Translations[]): Translations =>
+export const mergeTranslations = (translations: Translations[]): Translations =>
   translations
     .flatMap(translations => Object.entries(translations))
     .reduce(
       (acc, [key, translation]) => ({
         ...acc,
-        [key]: acc[key] ? { ...acc[key], ...translation } : translation,
+        [key]: acc[key] ? { ...acc[key], ...deepMerge(acc[key], translation) } : translation,
       }),
       {} as Translations,
     );
@@ -31,3 +31,12 @@ export const toTranslationResources = (...translations: Translations[]): Resourc
       }),
       {},
     );
+
+const deepMerge = (target: Translation, source: Translation): Translation => {
+  for (const key of Object.keys(source)) {
+    if (source[key] instanceof Object && key in target) {
+      Object.assign(source[key], deepMerge(target[key] as Translation, source[key] as Translation));
+    }
+  }
+  return { ...target, ...source };
+};

src/main/resources/generator/client/common/i18n/i18n.spec.ts

@@ -1,4 +1,5 @@
 import i18n from '@/i18n';
+import { mergeTranslations } from '@/Translations';
 
 describe('i18n configuration', () => {
   it('loads en translation', () => {
@@ -8,4 +9,37 @@ describe('i18n configuration', () => {
   it('loads fr translation', () => {
     expect(i18n.getResourceBundle('fr', '')['home']['translationEnabled']).toEqual('Internationalisation activée');
   });
+
+  describe('mergeTranslations function', () => {
+    it('merges translations correctly when keys overlap', () => {
+      const translationSet1 = {
+        en: {
+          home: {
+            translationEnabled: 'Internationalization enabled',
+            welcome: 'Welcome',
+          },
+        },
+      };
+
+      const translationSet2 = {
+        en: {
+          home: {
+            anotherMessage: 'Another message',
+          },
+        },
+      };
+
+      const mergedResult = mergeTranslations([translationSet1, translationSet2]);
+
+      expect(mergedResult).toEqual({
+        en: {
+          home: {
+            translationEnabled: 'Internationalization enabled',
+            welcome: 'Welcome',
+            anotherMessage: 'Another message',
+          },
+        },
+      });
+    });
+  });
 });

src/main/resources/generator/client/react/i18n/src/main/webapp/app/i18n.ts

@@ -4,7 +4,7 @@ import { initReactI18next } from 'react-i18next';
 import LanguageDetector from 'i18next-browser-languagedetector';
 import Backend from 'i18next-http-backend';
 
-i18n
+void i18n
   .use(Backend)
   .use(LanguageDetector)
   .use(initReactI18next)

src/test/java/tech/jhipster/lite/generator/client/vue/i18n/domain/VueI18nModuleFactoryTest.java

@@ -58,10 +58,7 @@ void shouldBuildI18nModule() {
       .and()
       .hasFile("src/main/webapp/app/home/locales/fr.ts")
       .and()
-      .hasFile("src/test/webapp/unit/home/infrastructure/primary/HomepageVue.spec.ts")
-      .and()
-      .hasFile("vitest.config.ts")
-      .containing("src/main/webapp/app/Translations.ts");
+      .hasFile("src/test/webapp/unit/home/infrastructure/primary/HomepageVue.spec.ts");
   }
 
   private ModuleFile mainFile() {