typescript-sdk/test/client/stdio.test.ts
2025-12-05 23:56:12 +00:00

77 lines
2 KiB
TypeScript

import { JSONRPCMessage } from '../../src/types.js';
import { StdioClientTransport, StdioServerParameters } from '../../src/client/stdio.js';
// Configure default server parameters based on OS
// Uses 'more' command for Windows and 'tee' command for Unix/Linux
const getDefaultServerParameters = (): StdioServerParameters => {
if (process.platform === 'win32') {
return { command: 'more' };
}
return { command: '/usr/bin/tee' };
};
const serverParameters = getDefaultServerParameters();
test('should start then close cleanly', async () => {
const client = new StdioClientTransport(serverParameters);
client.onerror = error => {
throw error;
};
let didClose = false;
client.onclose = () => {
didClose = true;
};
await client.start();
expect(didClose).toBeFalsy();
await client.close();
expect(didClose).toBeTruthy();
});
test('should read messages', async () => {
const client = new StdioClientTransport(serverParameters);
client.onerror = error => {
throw error;
};
const messages: JSONRPCMessage[] = [
{
jsonrpc: '2.0',
id: 1,
method: 'ping'
},
{
jsonrpc: '2.0',
method: 'notifications/initialized'
}
];
const readMessages: JSONRPCMessage[] = [];
const finished = new Promise<void>(resolve => {
client.onmessage = message => {
readMessages.push(message);
if (JSON.stringify(message) === JSON.stringify(messages[1])) {
resolve();
}
};
});
await client.start();
await client.send(messages[0]);
await client.send(messages[1]);
await finished;
expect(readMessages).toEqual(messages);
await client.close();
});
test('should return child process pid', async () => {
const client = new StdioClientTransport(serverParameters);
await client.start();
expect(client.pid).not.toBeNull();
await client.close();
expect(client.pid).toBeNull();
});