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Author: cursoragent

exercises/02.start/01.problem/package.json

@@ -25,6 +25,7 @@
     "@types/node": "^24.1.0",
     "cross-env": "^10.0.0",
     "eslint": "^9.32.0",
+    "execa": "^9.5.1",
     "prettier": "^3.6.2",
     "typescript": "^5.9.2",
     "vitest": "^3.2.4",

exercises/02.start/01.problem/src/globalSetup.ts

@@ -0,0 +1,81 @@
+import { execa } from 'execa'
+import type { TestProject } from 'vitest/node'
+
+export default function setup(project: TestProject) {
+	let appServerProcess: ReturnType<typeof execa> | null = null
+	let mcpServerProcess: ReturnType<typeof execa> | null = null
+
+	const startServers = async () => {
+		// Start the app server from the root directory
+		console.log('Starting app server...')
+		appServerProcess = execa(
+			'npm',
+			[
+				'run',
+				'dev',
+				'--prefix',
+				'./epicshop/epic-me',
+				'--',
+				'--clearScreen=false',
+				'--logLevel=error',
+				'--strictPort',
+			],
+			{
+				cwd: process.cwd().replace(/exercises\/.*$/, ''),
+				stdio: 'pipe',
+				env: {
+					...process.env,
+					PORT: '7788',
+				},
+			},
+		)
+
+		// Start the MCP server from the exercise directory
+		console.log('Starting MCP server...')
+		mcpServerProcess = execa('npm', ['run', 'dev:server'], {
+			cwd: process.cwd(),
+			stdio: 'pipe',
+			env: {
+				...process.env,
+				PORT: '8787',
+			},
+		})
+
+		// Wait a bit for servers to start
+		await new Promise((resolve) => setTimeout(resolve, 3000))
+		console.log('Servers started successfully')
+	}
+
+	const cleanup = async () => {
+		console.log('Cleaning up servers...')
+		
+		if (mcpServerProcess) {
+			mcpServerProcess.kill('SIGTERM')
+			try {
+				await mcpServerProcess
+			} catch {
+				// Process was killed, which is expected
+			}
+		}
+
+		if (appServerProcess) {
+			appServerProcess.kill('SIGTERM')
+			try {
+				await appServerProcess
+			} catch {
+				// Process was killed, which is expected
+			}
+		}
+
+		console.log('Servers cleaned up')
+	}
+
+	// Start servers immediately
+	startServers().catch((error) => {
+		console.error('Failed to start servers:', error)
+		process.exit(1)
+	})
+
+	// Return cleanup function
+	return cleanup
+}

exercises/02.start/01.problem/src/index.test.ts

@@ -0,0 +1,34 @@
+import { Client } from '@modelcontextprotocol/sdk/client/index.js'
+import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js'
+import { test, expect } from 'vitest'
+
+async function setupClient() {
+	const client = new Client(
+		{
+			name: 'EpicMeTester',
+			version: '1.0.0',
+		},
+		{ capabilities: {} },
+	)
+
+	const transport = new StreamableHTTPClientTransport({
+		url: 'http://localhost:8787/mcp',
+	})
+
+	await client.connect(transport)
+
+	return {
+		client,
+		async [Symbol.asyncDispose]() {
+			await client.transport?.close()
+		},
+	}
+}
+
+test('ping works', async () => {
+	await using setup = await setupClient()
+	const { client } = setup
+	
+	const result = await client.ping()
+	expect(result).toEqual({})
+})

exercises/02.start/01.problem/vitest.config.ts

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+	test: {
+		globalSetup: './src/globalSetup.ts',
+	},
+})