Google Calendar MCP

import { describe, it, expect, beforeAll, afterAll } from 'vitest'; import { Client } from "@modelcontextprotocol/sdk/client/index.js"; import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; import { spawn, ChildProcess } from 'child_process'; const MULTI_ACCOUNT_IDS = (process.env.MULTI_ACCOUNT_IDS || '') .split(',') .map(id => id.trim()) .filter(id => id.length > 0); const MULTI_ACCOUNT_TESTS_ENABLED = process.env.MULTI_ACCOUNT_TESTS === 'true' && MULTI_ACCOUNT_IDS.length >= 2; if (!MULTI_ACCOUNT_TESTS_ENABLED) { console.warn( `[multi-account.test] Skipping multi-account integration tests. ` + `Set MULTI_ACCOUNT_TESTS=true and MULTI_ACCOUNT_IDS=work,personal (or similar) ` + `after authenticating each account to run these tests.` ); } const describeIfEnabled = MULTI_ACCOUNT_TESTS_ENABLED ? describe : describe.skip; describeIfEnabled('Multi-account integration (stdio transport)', () => { let client: Client; let serverProcess: ChildProcess; const createdEvents: Array<{ accountId: string; calendarId: string; eventId: string }> = []; beforeAll(async () => { const cleanEnv = Object.fromEntries( Object.entries(process.env).filter(([_, value]) => value !== undefined) ) as Record<string, string>; cleanEnv.NODE_ENV = 'test'; serverProcess = spawn('node', ['build/index.js'], { stdio: ['pipe', 'pipe', 'pipe'], env: cleanEnv }); await new Promise(resolve => setTimeout(resolve, 3000)); client = new Client({ name: "multi-account-integration", version: "1.0.0" }, { capabilities: { tools: {} } }); const transport = new StdioClientTransport({ command: 'node', args: ['build/index.js'], env: cleanEnv }); await client.connect(transport); }, 40000); afterAll(async () => { for (const event of createdEvents.reverse()) { try { await client.callTool({ name: 'delete-event', arguments: { calendarId: event.calendarId, eventId: event.eventId, account: event.accountId } }); } catch { // Best-effort cleanup } } if (client) { await client.close(); } if (serverProcess && !serverProcess.killed) { serverProcess.kill(); await new Promise(resolve => setTimeout(resolve, 500)); } }, 40000); it('merges list-events results and detects cross-account conflicts', async () => { const [accountA, accountB] = MULTI_ACCOUNT_IDS; const now = Date.now(); const startA = new Date(now + 30 * 60 * 1000); // 30 minutes from now const endA = new Date(startA.getTime() + 45 * 60 * 1000); const startB = new Date(startA.getTime() + 10 * 60 * 1000); const endB = new Date(startB.getTime() + 45 * 60 * 1000); const timeMin = new Date(startA.getTime() - 15 * 60 * 1000).toISOString(); const timeMax = new Date(endB.getTime() + 15 * 60 * 1000).toISOString(); const eventA = await createEventForAccount(accountA, { summary: `Multi-account Test (${accountA}) ${now}`, start: startA.toISOString(), end: endA.toISOString() }); const eventB = await createEventForAccount(accountB, { summary: `Multi-account Test (${accountB}) ${now}`, start: startB.toISOString(), end: endB.toISOString() }); const listResult = await client.callTool({ name: 'list-events', arguments: { account: MULTI_ACCOUNT_IDS, calendarId: 'primary', timeMin, timeMax } }); const listResponse = parseToolResponse(listResult); expect(listResponse.accounts).toEqual(MULTI_ACCOUNT_IDS); const eventIds = (listResponse.events || []).map((event: any) => event.id); expect(eventIds).toContain(eventA); expect(eventIds).toContain(eventB); const eventFromA = listResponse.events.find((event: any) => event.id === eventA); const eventFromB = listResponse.events.find((event: any) => event.id === eventB); expect(eventFromA?.accountId).toBe(accountA); expect(eventFromB?.accountId).toBe(accountB); }); async function createEventForAccount( accountId: string, options: { summary: string; start: string; end: string } ): Promise<string> { const result = await client.callTool({ name: 'create-event', arguments: { calendarId: 'primary', account: accountId, summary: options.summary, start: options.start, end: options.end, allowDuplicates: true } }); const eventId = extractEventId(result); expect(eventId, `create-event should return an ID for account ${accountId}`).toBeTruthy(); if (!eventId) { throw new Error('Failed to create event'); } createdEvents.push({ accountId, calendarId: 'primary', eventId }); return eventId; } function parseToolResponse(result: any): any { const text = (result.content as any)[0]?.text; if (!text) { throw new Error('Tool response did not contain text output'); } return JSON.parse(text); } function extractEventId(result: any): string | null { try { const response = parseToolResponse(result); return response.event?.id || null; } catch { return null; } } });