69 lines
2.7 KiB
TypeScript
69 lines
2.7 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import React from 'react';
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import { render, screen } from '@testing-library/react';
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import {
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I18nProvider,
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UI_LANGUAGE_STORAGE_KEY,
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useI18n,
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translateUi,
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resolveSupportedUiLanguage,
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resolveUiLanguageFromSystemLocale,
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} from '../../src/renderer/i18n';
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const LanguageProbe: React.FC = () => {
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const { language, t } = useI18n();
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return React.createElement(
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React.Fragment,
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null,
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React.createElement('span', { 'data-testid': 'language' }, language),
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React.createElement('span', { 'data-testid': 'save-label' }, t('common.save')),
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);
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};
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describe('renderer i18n', () => {
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it('resolves supported ui language from OS locale', () => {
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expect(resolveUiLanguageFromSystemLocale('de-DE')).toBe('de');
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expect(resolveUiLanguageFromSystemLocale('fr-CH')).toBe('fr');
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expect(resolveUiLanguageFromSystemLocale('pt-BR')).toBe('en');
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});
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it('normalizes explicit ui language values', () => {
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expect(resolveSupportedUiLanguage('it')).toBe('it');
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expect(resolveSupportedUiLanguage('es-MX')).toBe('es');
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expect(resolveSupportedUiLanguage('')).toBe('en');
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});
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it('returns translated text for supported languages without per-key english fallback', () => {
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expect(translateUi('de', 'common.save')).toBe('Speichern');
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expect(translateUi('fr', 'common.cancel')).toBe('Annuler');
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expect(translateUi('de', 'settings.language.english')).toBe('Englisch');
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expect(translateUi('it', 'missing.key')).toBe('missing.key');
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});
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it('falls back to english only when requested language is unsupported', () => {
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const resolved = resolveSupportedUiLanguage('pt-BR');
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expect(resolved).toBe('en');
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expect(translateUi(resolved, 'common.save')).toBe('Save');
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});
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it('uses system locale for ui language when no persisted choice exists', async () => {
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localStorage.removeItem(UI_LANGUAGE_STORAGE_KEY);
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(window.electronAPI.app as { getSystemLanguage?: () => Promise<string> }).getSystemLanguage = async () => 'de-DE';
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render(React.createElement(I18nProvider, null, React.createElement(LanguageProbe)));
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expect(await screen.findByTestId('language')).toHaveTextContent('de');
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expect(screen.getByTestId('save-label')).toHaveTextContent('Speichern');
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});
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it('uses persisted ui language over system locale', async () => {
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localStorage.setItem(UI_LANGUAGE_STORAGE_KEY, 'fr');
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(window.electronAPI.app as { getSystemLanguage?: () => Promise<string> }).getSystemLanguage = async () => 'de-DE';
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render(React.createElement(I18nProvider, null, React.createElement(LanguageProbe)));
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expect(await screen.findByTestId('language')).toHaveTextContent('fr');
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expect(screen.getByTestId('save-label')).toHaveTextContent('Enregistrer');
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});
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});
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