e257af0e0a
- Match regional language tags to supported base locales in preference order - Preserve exact regional matches and English fallback - Cover the reported locale sequence and unsupported variants
27 lines
921 B
TypeScript
27 lines
921 B
TypeScript
import { describe, expect, test } from 'bun:test'
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import { resolveBrowserLocale } from '#vue/i18n/locale'
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describe('browser locale matching', () => {
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test('matches a primary regional locale before secondary languages', () => {
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expect(resolveBrowserLocale(['en-US', 'it-IT', 'it', 'es-ES', 'es', 'en'])).toBe('en')
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})
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test('preserves browser language preference order', () => {
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expect(resolveBrowserLocale(['it-IT', 'en-US'])).toBe('it')
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})
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test('prefers exact supported regional locales', () => {
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expect(resolveBrowserLocale(['zh-CN', 'en-US'])).toBe('zh-CN')
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expect(resolveBrowserLocale(['ZH-cn', 'en-US'])).toBe('zh-CN')
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})
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test('does not substitute a different regional locale', () => {
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expect(resolveBrowserLocale(['zh-TW', 'fr-CA'])).toBe('fr')
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})
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test('falls back to English when no locale matches', () => {
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expect(resolveBrowserLocale(['ko-KR'])).toBe('en')
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})
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})
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