✅ Add tests for some tools functions (#1377)

* ✅ Add tests for some tools functions

* 🐛 Build issue with language definition

src/tools/language.ts

@@ -13,7 +13,7 @@ export type Language = {
   locale: string;
 };
 
-export const languages: Language[] = [
+export const languages = [
   {
     shortName: 'de',
     originalName: 'Deutsch',
@@ -93,6 +93,7 @@ export const languages: Language[] = [
     originalName: 'LOLCAT',
     translatedName: 'LOLCAT',
     emoji: '🐱',
+    country: 'LOL',
     locale: 'en-gb',
   },
   // Norwegian
@@ -224,9 +225,11 @@ export const languages: Language[] = [
     originalName: 'Magyar',
     translatedName: 'Hungarian',
     emoji: '🇭🇺',
+    country: 'HU',
     locale: 'hu',
   },
-];
+] as const satisfies Readonly<Language[]>;
 
 export const getLanguageByCode = (code: string | null) =>
-  languages.find((language) => language.shortName === code) ?? languages[languages.length - 1];
+  languages.find((language) => language.shortName === code) ??
+  languages.find((x) => x.locale === 'en-gb')!;