import { execa } from 'execa';
import fs from 'fs/promises';
import os from 'os';
import path from 'path';
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
describe('CLI', () => {
const cliPath = path.join(__dirname, '../bin/cli.js');
let tmpDir: string;
beforeEach(async () => {
tmpDir = await fs.mkdtemp(path.join(os.tmpdir(), 'mcp-cli-test-'));
});
afterEach(async () => {
await fs.rm(tmpDir, { recursive: true, force: true });
});
it('shows help with --help', async () => {
const { stdout, exitCode } = await execa('node', [cliPath, '--help'], {
cwd: tmpDir,
});
expect(stdout).toMatch(/USAGE:/);
expect(stdout).toMatch(/Repository:/);
expect(exitCode).toBe(0);
});
it('shows help with -h', async () => {
const { stdout, exitCode } = await execa('node', [cliPath, '-h'], {
cwd: tmpDir,
});
expect(stdout).toMatch(/USAGE:/);
expect(exitCode).toBe(0);
});
it('shows error on unknown command', async () => {
const { stderr, exitCode } = await execa('node', [cliPath, 'unknown'], {
reject: false,
cwd: tmpDir,
});
expect(stderr).toMatch(/Unknown command/);
expect(exitCode).toBe(1);
});
it('runs init without error (dry run)', async () => {
// We do not check the effect, just that it does not crash
const { exitCode } = await execa('node', [cliPath, 'init'], {
reject: false,
cwd: tmpDir,
});
expect([0, 1]).toContain(exitCode); // 0 = success, 1 = already initialized or minor error
});
it('runs server by default (dry run)', async () => {
// Start the server, wait a bit, then kill the process and check the output
const subprocess = execa('node', [cliPath], { reject: false, cwd: tmpDir });
let output = '';
subprocess.stdout?.on('data', (data) => {
output += data.toString();
});
subprocess.stderr?.on('data', (data) => {
output += data.toString();
});
await new Promise((resolve) => setTimeout(resolve, 500));
subprocess.kill();
await subprocess.catch(() => {}); // ignore exit error
expect(output).toMatch(/MCP Log Server|Error|usage/i);
});
});
