add locale validate

Author: CoolPlayLin

Diff for: __test__/locale.spec.ts

@@ -4,22 +4,32 @@ import { readdirSync } from 'node:fs'
 import { Language } from '../utils/getLanguage'
 import { includeAllKeys, excludeKeys } from './utils'
 
-const locales = readdirSync(resolve(__dirname, '../locales'))
+const locales = readdirSync(resolve(__dirname, '../locales')).filter((file) => {
+  return file.includes('.json') // exclude unnecessary files
+})
+
+describe('should match name regex', () => {
+  locales.forEach((locale) => {
+      it(`for ${locale}`, () => {
+        expect(locale).toMatch(/^[a-zA-Z]{2}(-[a-zA-Z]{2})*.json$/)
+      })
+  })
+})
 
 describe('should include full keys', () => {
-    const structure: Language = require('../schema/locale.json')
-    locales.forEach((locale) => {
-        it(`for ${locale}`, () => {
-            expect(includeAllKeys(require(`../locales/${locale}`), structure)).toBeTruthy()
-        })
+  const structure: Language = require('../schema/locale.json')
+  locales.forEach((locale) => {
+    it(`for ${locale}`, () => {
+      expect(includeAllKeys(require(`../locales/${locale}`), structure)).toBeTruthy()
     })
+  })
 })
 
-describe("shouldn't include unnecessary keys", () => {
-    const structure: Language = require('../schema/locale.json')
-    locales.forEach((locale) => {
-        it(`for ${locale}`, () => {
-            expect(excludeKeys(require(`../locales/${locale}`), structure)).toBeTruthy()
-        })
+describe("should not include unnecessary keys", () => {
+  const structure: Language = require('../schema/locale.json')
+  locales.forEach((locale) => {
+    it(`for ${locale}`, () => {
+      expect(excludeKeys(require(`../locales/${locale}`), structure)).toBeTruthy()
     })
-})
+  })
+})