MCP Time Server Node

import { ListToolsResultSchema } from '@modelcontextprotocol/sdk/types.js'; import { createTestEnvironment, createTestEnvironmentWithInterceptor } from './helpers/setup'; describe('MCP Protocol Communication', () => { describe('Tools List', () => { it('should list tools through protocol', async () => { const { client, cleanup } = await createTestEnvironment(); try { const response = await client.request( { method: 'tools/list', params: {}, }, ListToolsResultSchema, ); expect(response.tools).toBeDefined(); expect(response.tools.length).toBe(10); } finally { await cleanup(); } }); }); describe('JSON-RPC Message Structure', () => { it('should send valid JSON-RPC 2.0 messages', async () => { const { client, clientInterceptor, cleanup } = await createTestEnvironmentWithInterceptor(); try { await client.request({ method: 'tools/list', params: {} }, ListToolsResultSchema); const sentMessages = clientInterceptor.getSentMessages(); // Find the tools/list message (ignoring initialization messages) const toolsListMessage = sentMessages.find((msg) => msg.method === 'tools/list'); expect(toolsListMessage).toBeDefined(); expect(toolsListMessage.jsonrpc).toBe('2.0'); expect(toolsListMessage.method).toBe('tools/list'); expect(toolsListMessage.id).toBeDefined(); expect(typeof toolsListMessage.id).toBe('number'); } finally { await cleanup(); } }); }); });