import { promises as fs } from 'node:fs';
import { readFileSync } from 'node:fs';
import { join } from 'node:path';
import os from 'node:os';
import { format } from 'node:util';
import { beforeEach, afterEach, describe, expect, it, vi } from 'vitest';
import { createCliProgram } from '../src/cli/index.js';
const FIXTURE = join(process.cwd(), 'tests', 'fixtures', 'claude', 'config.base.json');
describe('cli install --dry-run', () => {
const ORIGINAL_ENV = { ...process.env };
beforeEach(() => {
process.exitCode = undefined;
process.env = { ...ORIGINAL_ENV };
});
afterEach(() => {
vi.restoreAllMocks();
process.env = { ...ORIGINAL_ENV };
});
it('prints a unified diff without writing changes', async () => {
const tmpDir = await fs.mkdtemp(join(os.tmpdir(), 'vibe-dryrun-'));
const configPath = join(tmpDir, 'claude.json');
const original = readFileSync(FIXTURE, 'utf8');
await fs.writeFile(configPath, original, 'utf8');
process.env.VIBE_CHECK_API_KEY = 'dry-run-key';
const logs: string[] = [];
const logSpy = vi.spyOn(console, 'log').mockImplementation((message?: unknown, ...rest: unknown[]) => {
logs.push(format(String(message ?? ''), ...rest));
});
const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
const program = createCliProgram();
await program.parseAsync([
'node',
'vibe-check-mcp',
'install',
'--client',
'claude',
'--config',
configPath,
'--dry-run',
'--non-interactive',
]);
logSpy.mockRestore();
warnSpy.mockRestore();
const joined = logs.join('\n');
expect(joined).toContain('@@');
expect(joined).toContain('vibe-check-mcp-cli"');
expect(joined).toContain('@pv-bhat/vibe-check-mcp');
const after = await fs.readFile(configPath, 'utf8');
expect(after).toBe(original);
const files = await fs.readdir(tmpDir);
expect(files.some((file) => file.endsWith('.bak'))).toBe(false);
});
});
