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Auto-detect LLM output language from system locale on first startup

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Alexander Farber 2025-12-13 15:19:55 +01:00
parent a92be72e88
commit 4d9f25e9fe
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5 changed files with 259 additions and 1 deletions
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85
packages/cli/src/ui/commands/languageCommand.test.ts
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@ -13,6 +13,16 @@ import { createMockCommandContext } from '../../test-utils/mockCommandContext.js
vi.mock('../../i18n/index.js', () => ({
setLanguageAsync: vi.fn().mockResolvedValue(undefined),
getCurrentLanguage: vi.fn().mockReturnValue('en'),
detectSystemLanguage: vi.fn().mockReturnValue('en'),
getLanguageNameFromLocale: vi.fn((locale: string) => {
const map: Record<string, string> = {
zh: 'Chinese',
en: 'English',
ru: 'Russian',
de: 'German',
};
return map[locale] || 'English';
}),
t: vi.fn((key: string) => key),
}));
@ -61,7 +71,10 @@ vi.mock('@qwen-code/qwen-code-core', async (importOriginal) => {
// Import modules after mocking
import * as i18n from '../../i18n/index.js';
import { languageCommand } from './languageCommand.js';
import {
languageCommand,
initializeLlmOutputLanguage,
} from './languageCommand.js';
describe('languageCommand', () => {
let mockContext: CommandContext;
@ -597,4 +610,74 @@ describe('languageCommand', () => {
});
});
});
describe('initializeLlmOutputLanguage', () => {
beforeEach(() => {
vi.clearAllMocks();
vi.mocked(fs.existsSync).mockReturnValue(false);
vi.mocked(fs.mkdirSync).mockImplementation(() => undefined);
vi.mocked(fs.writeFileSync).mockImplementation(() => undefined);
});
it('should create file when it does not exist', () => {
vi.mocked(fs.existsSync).mockReturnValue(false);
vi.mocked(i18n.detectSystemLanguage).mockReturnValue('en');
initializeLlmOutputLanguage();
expect(fs.mkdirSync).toHaveBeenCalled();
expect(fs.writeFileSync).toHaveBeenCalledWith(
expect.stringContaining('output-language.md'),
expect.stringContaining('English'),
'utf-8',
);
});
it('should NOT overwrite existing file', () => {
vi.mocked(fs.existsSync).mockReturnValue(true);
initializeLlmOutputLanguage();
expect(fs.writeFileSync).not.toHaveBeenCalled();
});
it('should detect Chinese locale and create Chinese rule file', () => {
vi.mocked(fs.existsSync).mockReturnValue(false);
vi.mocked(i18n.detectSystemLanguage).mockReturnValue('zh');
initializeLlmOutputLanguage();
expect(fs.writeFileSync).toHaveBeenCalledWith(
expect.stringContaining('output-language.md'),
expect.stringContaining('Chinese'),
'utf-8',
);
});
it('should detect Russian locale and create Russian rule file', () => {
vi.mocked(fs.existsSync).mockReturnValue(false);
vi.mocked(i18n.detectSystemLanguage).mockReturnValue('ru');
initializeLlmOutputLanguage();
expect(fs.writeFileSync).toHaveBeenCalledWith(
expect.stringContaining('output-language.md'),
expect.stringContaining('Russian'),
'utf-8',
);
});
it('should detect German locale and create German rule file', () => {
vi.mocked(fs.existsSync).mockReturnValue(false);
vi.mocked(i18n.detectSystemLanguage).mockReturnValue('de');
initializeLlmOutputLanguage();
expect(fs.writeFileSync).toHaveBeenCalledWith(
expect.stringContaining('output-language.md'),
expect.stringContaining('German'),
'utf-8',
);
});
});
});