From 073b79e76bbda29ac0268844ca2fe4a3363d7864 Mon Sep 17 00:00:00 2001
From: ivanThePleasant <sevcenko.ivan@gmail.com>
Date: Tue, 15 Nov 2022 11:22:04 +0200
Subject: [PATCH] Add new test to check for duplicate iso locales

---
 .../plugins/i18n/server/constants/__tests__/index.test.js  | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/plugins/i18n/server/constants/__tests__/index.test.js b/packages/plugins/i18n/server/constants/__tests__/index.test.js
index e0618330c6..c94bdb58cc 100644
--- a/packages/plugins/i18n/server/constants/__tests__/index.test.js
+++ b/packages/plugins/i18n/server/constants/__tests__/index.test.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const { getInitLocale } = require('..');
+const { getInitLocale, isoLocales } = require('..');
 
 describe('I18N default locale', () => {
   describe('getInitLocale', () => {
@@ -23,5 +23,10 @@ describe('I18N default locale', () => {
       process.env.STRAPI_PLUGIN_I18N_INIT_LOCALE_CODE = 'zzzzz';
       expect(() => getInitLocale()).toThrow();
     });
+
+    test('Checks if there are any duplicate locales present in the "iso-locales.json" file', () => {
+      const set = new Set(isoLocales.map((item) => item.code)).size !== isoLocales.length;
+      expect(set).toBe(false);
+    });
   });
 });