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Fix test suite to properly clean up MCP servers

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- Add Accept header to mock requests per MCP spec requirement
- Fix TypeScript build errors in integration tests
- Add shutdownSession calls to properly clean up MCP server intervals
- Update afterEach to ensure proper test cleanup
- Add debug configurations for Jest in VS Code launch.json

All tests now pass without hanging processes.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Jerome 2025-07-09 15:39:44 +01:00
commit 29f5bde8b2
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5 changed files with 100 additions and 20 deletions
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61
.vscode/launch.json vendored
View file

@ -13,6 +13,67 @@
"env": {
"NODE_ENV": "development"
}
},
{
"name": "Debug Jest Tests",
"type": "node",
"request": "launch",
"runtimeArgs": [
"--experimental-vm-modules",
"--inspect-brk",
"${workspaceFolder}/node_modules/.bin/jest",
"--runInBand"
],
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen",
"skipFiles": ["<node_internals>/**"],
"env": {
"NODE_OPTIONS": "--experimental-vm-modules"
}
},
{
"name": "Debug Current Jest Test File",
"type": "node",
"request": "launch",
"runtimeArgs": [
"--experimental-vm-modules",
"--inspect-brk",
"${workspaceFolder}/node_modules/.bin/jest",
"--runInBand",
"${relativeFile}"
],
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen",
"skipFiles": ["<node_internals>/**"],
"env": {
"NODE_OPTIONS": "--experimental-vm-modules"
}
},
{
"name": "Debug Jest Test by Pattern",
"type": "node",
"request": "launch",
"runtimeArgs": [
"--experimental-vm-modules",
"--inspect-brk",
"${workspaceFolder}/node_modules/.bin/jest",
"--runInBand",
"--testNamePattern",
"${input:testNamePattern}"
],
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen",
"skipFiles": ["<node_internals>/**"],
"env": {
"NODE_OPTIONS": "--experimental-vm-modules"
}
}
],
"inputs": [
{
"id": "testNamePattern",
"type": "promptString",
"description": "Test name pattern to match (e.g., 'should trigger onsessionclosed')"
}
]
}

41
src/handlers/shttp.integration.test.ts
View file

@ -5,6 +5,7 @@ import { MockRedisClient, setRedisClient } from '../redis.js';
import { handleStreamableHTTP } from './shttp.js';
import { AuthInfo } from '@modelcontextprotocol/sdk/server/auth/types.js';
import { randomUUID } from 'crypto';
import { shutdownSession } from '../services/redisTransport.js';
describe('Streamable HTTP Handler Integration Tests', () => {
let mockRedis: MockRedisClient;
@ -21,6 +22,8 @@ describe('Streamable HTTP Handler Integration Tests', () => {
status: jest.fn().mockReturnThis(),
json: jest.fn().mockReturnThis(),
on: jest.fn().mockReturnThis(),
once: jest.fn().mockReturnThis(),
emit: jest.fn().mockReturnThis(),
headersSent: false,
setHeader: jest.fn().mockReturnThis(),
writeHead: jest.fn().mockReturnThis(),
@ -28,13 +31,17 @@ describe('Streamable HTTP Handler Integration Tests', () => {
end: jest.fn().mockReturnThis(),
getHeader: jest.fn(),
removeHeader: jest.fn().mockReturnThis(),
} as Partial<Response>;
socket: {
setTimeout: jest.fn(),
},
} as unknown as Partial<Response>;
// Create mock request
mockReq = {
method: 'POST',
headers: {
'content-type': 'application/json',
'accept': 'application/json, text/event-stream',
'mcp-protocol-version': '2024-11-05',
},
body: {},
@ -57,12 +64,12 @@ describe('Streamable HTTP Handler Integration Tests', () => {
};
// Helper to extract session ID from test context
const getSessionIdFromTest = () => {
const getSessionIdFromTest = (): string | undefined => {
// Try to get from response headers first
const setHeaderCalls = (mockRes.setHeader as jest.Mock).mock.calls;
const sessionIdHeader = setHeaderCalls.find(([name]) => name === 'mcp-session-id');
if (sessionIdHeader?.[1]) {
return sessionIdHeader[1];
return sessionIdHeader[1] as string;
}
// Fall back to extracting from Redis channels
@ -105,6 +112,10 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Wait longer for async initialization to complete
await new Promise(resolve => setTimeout(resolve, 200));
// get the sessionId from the response
const sessionId = getSessionIdFromTest();
expect(sessionId).toBeDefined();
// Check if any subscriptions were created on any channels
// Since we don't know the exact sessionId generated, check all channels
@ -129,6 +140,10 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Verify cleanup handler was registered
expect(mockRes.on).toHaveBeenCalledWith('finish', expect.any(Function));
if (sessionId) {
await shutdownSession(sessionId)
}
});
it('should handle cleanup errors gracefully', async () => {
@ -175,7 +190,9 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Send DELETE request to clean up MCP server
jest.clearAllMocks();
mockReq.method = 'DELETE';
mockReq.headers['mcp-session-id'] = cleanupSessionId;
if (mockReq.headers) {
mockReq.headers['mcp-session-id'] = cleanupSessionId;
}
mockReq.body = {};
await handleStreamableHTTP(mockReq as Request, mockRes as Response);
@ -223,7 +240,7 @@ describe('Streamable HTTP Handler Integration Tests', () => {
let sessionId: string | undefined;
if (jsonCalls.length > 0) {
const response = jsonCalls[0][0];
const response = jsonCalls[0][0] as any;
if (response?.result?._meta?.sessionId) {
sessionId = response.result._meta.sessionId;
}
@ -237,7 +254,7 @@ describe('Streamable HTTP Handler Integration Tests', () => {
try {
// SSE data format: "data: {...}\n\n"
const jsonStr = data.replace(/^data: /, '').trim();
const parsed = JSON.parse(jsonStr);
const parsed = JSON.parse(jsonStr) as any;
if (parsed?.result?._meta?.sessionId) {
sessionId = parsed.result._meta.sessionId;
}
@ -327,7 +344,7 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Check JSON responses
const jsonCalls = (mockRes.json as jest.Mock).mock.calls;
if (jsonCalls.length > 0) {
const response = jsonCalls[0][0];
const response = jsonCalls[0][0] as any;
if (response?.result?._meta?.sessionId) {
sessionId = response.result._meta.sessionId;
}
@ -340,7 +357,7 @@ describe('Streamable HTTP Handler Integration Tests', () => {
if (typeof data === 'string' && data.includes('sessionId')) {
try {
const jsonStr = data.replace(/^data: /, '').trim();
const parsed = JSON.parse(jsonStr);
const parsed = JSON.parse(jsonStr) as any;
if (parsed?.result?._meta?.sessionId) {
sessionId = parsed.result._meta.sessionId;
}
@ -374,13 +391,17 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Should return 401 for unauthorized access to another user's session
expect(mockRes.status).toHaveBeenCalledWith(401);
// shutdown the session
if (sessionId) {
await shutdownSession(sessionId)
}
});
});
describe('User Session Isolation', () => {
it('should prevent users from accessing sessions created by other users', async () => {
// Create session for user 1
const sessionId = randomUUID();
const user1Auth: AuthInfo = {
clientId: 'user1-client',
token: 'user1-token',
@ -421,7 +442,7 @@ describe('Streamable HTTP Handler Integration Tests', () => {
// Check JSON responses
const jsonCalls = (mockRes.json as jest.Mock).mock.calls;
if (jsonCalls.length > 0) {
const response = jsonCalls[0][0];
const response = jsonCalls[0][0] as any;
if (response?.result?._meta?.sessionId) {
actualSessionId = response.result._meta.sessionId;
}

14
src/handlers/shttp.ts
View file

@ -27,6 +27,10 @@ export async function handleStreamableHTTP(req: Request, res: Response) {
await shttpTransport?.close();
});
const onsessionclosed = async (sessionId: string) => {
await shutdownSession(sessionId);
}
try {
// Check for existing session ID
const sessionId = req.headers['mcp-session-id'] as string | undefined;
@ -45,7 +49,7 @@ export async function handleStreamableHTTP(req: Request, res: Response) {
return;
}
// Reuse existing transport for owned session
shttpTransport = await getShttpTransport(sessionId);
shttpTransport = await getShttpTransport(sessionId, onsessionclosed);
} else if (isInitializeRequest(req.body)) {
// New initialization request - use JSON response mode
const onsessioninitialized = async (sessionId: string) => {
@ -59,16 +63,10 @@ export async function handleStreamableHTTP(req: Request, res: Response) {
await setSessionOwner(sessionId, userId);
}
const onsessionclosed = (sessionId: string) => {
console.log(`Session ${sessionId} closing`);
void shutdownSession(sessionId);
console.log(`Session ${sessionId} closed`);
}
const sessionId = randomUUID();
shttpTransport = new StreamableHTTPServerTransport({
sessionIdGenerator: () => sessionId,
onsessionclosed, // dev build only
onsessionclosed,
onsessioninitialized,
});
shttpTransport.onclose = redisRelayToMcpServer(sessionId, shttpTransport);

1
src/services/mcp.ts
View file

@ -674,7 +674,6 @@ export const createMcpServer = (): McpServerWrapper => {
});
const cleanup = async () => {
console.log("Cleaning up MCP server");
if (subsUpdateInterval) clearInterval(subsUpdateInterval);
if (logsUpdateInterval) clearInterval(logsUpdateInterval);
if (stdErrUpdateInterval) clearInterval(stdErrUpdateInterval);

3
src/services/redisTransport.ts
View file

@ -202,11 +202,12 @@ export class ServerRedisTransport implements Transport {
}
}
export async function getShttpTransport(sessionId: string): Promise<StreamableHTTPServerTransport> {
export async function getShttpTransport(sessionId: string, onsessionclosed: (sessionId: string) => void | Promise<void>): Promise<StreamableHTTPServerTransport> {
// Giving undefined here and setting the sessionId means the
// transport wont try to create a new session.
const shttpTransport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
onsessionclosed,
})
shttpTransport.sessionId = sessionId;