diff --git a/tests/unit/i18n.test.ts b/tests/unit/i18n.test.ts
new file mode 100644
index 0000000..4c3b769
--- /dev/null
+++ b/tests/unit/i18n.test.ts
@@ -0,0 +1,28 @@
+
+import { expect, test } from 'vitest'
+import { countryCodeToName } from '../../src/services/i18n'
+
+test('Country code to Name', async () => {
+  expect(countryCodeToName('en')).toBe('English')
+  expect(countryCodeToName('es')).toBe('Spanish')
+  expect(countryCodeToName('fr')).toBe('French')
+  expect(countryCodeToName('de')).toBe('German')
+  expect(countryCodeToName('it')).toBe('Italian')
+  expect(countryCodeToName('pt')).toBe('Portuguese')
+  expect(countryCodeToName('nl')).toBe('Dutch')
+  expect(countryCodeToName('pl')).toBe('Polish')
+  expect(countryCodeToName('ru')).toBe('Russian')
+  expect(countryCodeToName('ja')).toBe('Japanese')
+  expect(countryCodeToName('ko')).toBe('Korean')
+  expect(countryCodeToName('zh')).toBe('Chinese')
+  expect(countryCodeToName('vi')).toBe('Vietnamese')
+  expect(countryCodeToName('th')).toBe('Thai')
+  expect(countryCodeToName('id')).toBe('Indonesian')
+  expect(countryCodeToName('hi')).toBe('Hindi')
+  expect(countryCodeToName('ar')).toBe('Arabic')
+  expect(countryCodeToName('tr')).toBe('Turkish')
+  expect(countryCodeToName('ms')).toBe('Malay')
+  expect(countryCodeToName('fi')).toBe(' Filipino')
+  expect(countryCodeToName('sw')).toBe('Swahili')
+  expect(countryCodeToName('xx')).toBe('English')
+})