102 lines
2.5 KiB
TypeScript
102 lines
2.5 KiB
TypeScript
import { Readable, Writable } from 'node:stream';
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import { ReadBuffer, serializeMessage } from '../shared/stdio.js';
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import { JSONRPCMessage } from '../types.js';
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import { StdioServerTransport } from './stdio.js';
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let input: Readable;
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let outputBuffer: ReadBuffer;
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let output: Writable;
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beforeEach(() => {
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input = new Readable({
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// We'll use input.push() instead.
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read: () => {}
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});
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outputBuffer = new ReadBuffer();
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output = new Writable({
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write(chunk, encoding, callback) {
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outputBuffer.append(chunk);
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callback();
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}
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});
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});
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test('should start then close cleanly', async () => {
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const server = new StdioServerTransport(input, output);
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server.onerror = error => {
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throw error;
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};
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let didClose = false;
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server.onclose = () => {
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didClose = true;
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};
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await server.start();
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expect(didClose).toBeFalsy();
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await server.close();
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expect(didClose).toBeTruthy();
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});
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test('should not read until started', async () => {
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const server = new StdioServerTransport(input, output);
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server.onerror = error => {
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throw error;
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};
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let didRead = false;
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const readMessage = new Promise(resolve => {
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server.onmessage = message => {
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didRead = true;
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resolve(message);
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};
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});
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const message: JSONRPCMessage = {
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jsonrpc: '2.0',
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id: 1,
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method: 'ping'
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};
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input.push(serializeMessage(message));
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expect(didRead).toBeFalsy();
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await server.start();
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expect(await readMessage).toEqual(message);
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});
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test('should read multiple messages', async () => {
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const server = new StdioServerTransport(input, output);
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server.onerror = error => {
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throw error;
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};
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const messages: JSONRPCMessage[] = [
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{
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jsonrpc: '2.0',
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id: 1,
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method: 'ping'
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},
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{
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jsonrpc: '2.0',
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method: 'notifications/initialized'
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}
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];
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const readMessages: JSONRPCMessage[] = [];
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const finished = new Promise<void>(resolve => {
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server.onmessage = message => {
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readMessages.push(message);
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if (JSON.stringify(message) === JSON.stringify(messages[1])) {
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resolve();
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}
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};
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});
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input.push(serializeMessage(messages[0]));
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input.push(serializeMessage(messages[1]));
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await server.start();
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await finished;
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expect(readMessages).toEqual(messages);
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});
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