21 lines
776 B
TypeScript
21 lines
776 B
TypeScript
import { describe, expect, it } from 'vitest';
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import { resolveSupportedLanguage } from '../../shared/language';
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describe('resolveSupportedLanguage', () => {
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it('uses the base language for supported regional locales', () => {
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expect(resolveSupportedLanguage('zh-CN')).toBe('zh');
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expect(resolveSupportedLanguage('en-US')).toBe('en');
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});
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it('falls back to English for unsupported locales', () => {
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expect(resolveSupportedLanguage('fr-FR')).toBe('en');
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expect(resolveSupportedLanguage('ja_JP')).toBe('en');
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expect(resolveSupportedLanguage('ko')).toBe('en');
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});
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it('falls back to English when locale is missing', () => {
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expect(resolveSupportedLanguage('')).toBe('en');
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expect(resolveSupportedLanguage(undefined)).toBe('en');
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});
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});
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