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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import * as fs from 'node:fs';
import * as os from 'node:os';
import * as path from 'node:path';
import * as net from 'node:net';
import * as child_process from 'node:child_process';
import { IdeClient } from '../packages/core/src/ide/ide-client.js';
import { TestMcpServer } from './test-mcp-server.js';
describe.skip('IdeClient', () => {
it('reads port from file and connects', async () => {
const server = new TestMcpServer();
const port = await server.start();
const pid = process.pid;
const portFile = path.join(os.tmpdir(), `gemini-ide-server-${pid}.json`);
fs.writeFileSync(portFile, JSON.stringify({ port }));
process.env['GEMINI_CLI_IDE_WORKSPACE_PATH'] = process.cwd();
process.env['TERM_PROGRAM'] = 'vscode';
const ideClient = IdeClient.getInstance();
await ideClient.connect();
expect(ideClient.getConnectionStatus()).toEqual({
status: 'connected',
details: undefined,
});
fs.unlinkSync(portFile);
await server.stop();
delete process.env['GEMINI_CLI_IDE_WORKSPACE_PATH'];
// Reset instance
IdeClient.instance = undefined;
});
});
const getFreePort = (): Promise<number> => {
return new Promise((resolve, reject) => {
const server = net.createServer();
server.unref();
server.on('error', reject);
server.listen(0, () => {
const port = (server.address() as net.AddressInfo).port;
server.close(() => {
resolve(port);
});
});
});
};
describe('IdeClient fallback connection logic', () => {
let server: TestMcpServer;
let envPort: number;
let pid: number;
let portFile: string;
beforeEach(async () => {
pid = process.pid;
portFile = path.join(os.tmpdir(), `gemini-ide-server-${pid}.json`);
server = new TestMcpServer();
envPort = await server.start();
process.env['GEMINI_CLI_IDE_SERVER_PORT'] = String(envPort);
process.env['TERM_PROGRAM'] = 'vscode';
process.env['GEMINI_CLI_IDE_WORKSPACE_PATH'] = process.cwd();
// Reset instance
IdeClient.instance = undefined;
});
afterEach(async () => {
await server.stop();
delete process.env['GEMINI_CLI_IDE_SERVER_PORT'];
delete process.env['GEMINI_CLI_IDE_WORKSPACE_PATH'];
if (fs.existsSync(portFile)) {
fs.unlinkSync(portFile);
}
});
it('connects using env var when port file does not exist', async () => {
// Ensure port file doesn't exist
if (fs.existsSync(portFile)) {
fs.unlinkSync(portFile);
}
const ideClient = IdeClient.getInstance();
await ideClient.connect();
expect(ideClient.getConnectionStatus()).toEqual({
status: 'connected',
details: undefined,
});
});
it('falls back to env var when connection with port from file fails', async () => {
const filePort = await getFreePort();
// Write port file with a port that is not listening
fs.writeFileSync(portFile, JSON.stringify({ port: filePort }));
const ideClient = IdeClient.getInstance();
await ideClient.connect();
expect(ideClient.getConnectionStatus()).toEqual({
status: 'connected',
details: undefined,
});
});
});
describe.skip('getIdeProcessId', () => {
let child: ChildProcess;
afterEach(() => {
if (child) {
child.kill();
}
});
it('should return the pid of the parent process', async () => {
// We need to spawn a child process that will run the test
// so that we can check that getIdeProcessId returns the pid of the parent
const parentPid = process.pid;
const output = await new Promise<string>((resolve, reject) => {
child = child_process.spawn(
'node',
[
'-e',
`
const { getIdeProcessId } = require('../packages/core/src/ide/process-utils.js');
getIdeProcessId().then(pid => console.log(pid));
`,
],
{
stdio: ['pipe', 'pipe', 'pipe'],
},
);
let out = '';
child.stdout?.on('data', (data) => {
out += data.toString();
});
child.on('close', (code) => {
if (code === 0) {
resolve(out.trim());
} else {
reject(new Error(`Child process exited with code ${code}`));
}
});
});
expect(parseInt(output, 10)).toBe(parentPid);
}, 10000);
});
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