// ---------------------------------------------------------------------------// vitest-pool-workers test entry// ---------------------------------------------------------------------------//// Re-exports the real McpSessionDO and drives /mcp + /.well-known/* through// the same Effect HttpApp the prod worker uses. Only the `McpAuth` service// is swapped: the real impl calls WorkOS's JWKS endpoint, which can't be// reached from the test isolate.//// `stdio`-transport branch of plugin-mcp is now dynamically imported (see// packages/plugins/mcp/src/sdk/connection.ts), so `@modelcontextprotocol/// sdk/client/stdio.js` no longer touches `node:child_process` at module// load — that was SIGSEGV-ing workerd during test instantiation.// --------------------------------------------------------------------------- import { HttpApp } from "@effect/platform";import { Effect, Layer } from "effect";import { drizzle } from "drizzle-orm/postgres-js";import postgres, { type Sql } from "postgres"; import { McpAuth, classifyMcpPath, mcpApp } from "./mcp";import { organizations } from "./services/schema";import { parseTestBearer } from "./test-bearer";import { DoTelemetryLive } from "./services/telemetry"; export { McpSessionDO } from "./mcp-session"; const TestMcpAuthLive = Layer.succeed(McpAuth, {  verifyBearer: (request) =>    Effect.sync(() => {      const header = request.headers.get("authorization");      if (!header?.startsWith("Bearer ")) return null;      return parseTestBearer(header.slice("Bearer ".length));    }),}); // ---------------------------------------------------------------------------// Test seed endpoint// ---------------------------------------------------------------------------//// Exposed at POST /__test__/seed-org. Tests call it via SELF.fetch to insert// organization rows into the same PGlite-backed database the DO reads from. Doing// the insert from inside the test worker avoids pulling postgres.js into the// test file's top-level imports (which segfaulted workerd during test// module instantiation).// --------------------------------------------------------------------------- const seedConnectionString = (envArg: Record<string, unknown>) =>  (envArg.DATABASE_URL as string | undefined) ??  "postgresql://postgres:postgres@127.0.0.1:5434/postgres"; // Per-request postgres connection. Sharing a `Sql` across requests breaks// mid-suite — vitest-pool-workers' isolate resets tear down the socket and// the next insert errors with "read end of pipe was aborted". Open + close// per request; the test DO runtime does the same to avoid workerd's// cross-request I/O guard.const handleSeedOrg = async (  request: Request,  envArg: Record<string, unknown>,): Promise<Response> => {  const body = (await request.json()) as { id: string; name: string };  const sql: Sql = postgres(seedConnectionString(envArg), {    max: 1,    idle_timeout: 0,    max_lifetime: 30,    connect_timeout: 10,    onnotice: () => undefined,  });  try {    await drizzle(sql, { schema: { organizations } })      .insert(organizations)      .values({ id: body.id, name: body.name })      .onConflictDoUpdate({        target: organizations.id,        set: { name: body.name },      });  } finally {    await sql.end({ timeout: 0 }).catch(() => undefined);  }  return new Response(null, { status: 204 });}; // Provide a WebSdk-backed tracer on the worker side so the `mcp.request` span// gets reported to the OTLP receiver. Prod uses the global TracerProvider// installed by `otel-cf-workers.instrument()`; the test worker has no such// instrumentation, so we reuse DoTelemetryLive (it's a plain WebSdk +// OTLPTraceExporter — not Durable-Object-specific) to stand in.const testMcpFetch = HttpApp.toWebHandler(  mcpApp.pipe(Effect.provide(Layer.mergeAll(TestMcpAuthLive, DoTelemetryLive))),); export default {  async fetch(request: Request, envArg: Record<string, unknown>): Promise<Response> {    const url = new URL(request.url);    if (url.pathname === "/__test__/seed-org" && request.method === "POST") {      return handleSeedOrg(request, envArg);    }    if (classifyMcpPath(url.pathname) !== null) {      return testMcpFetch(request);    }    return new Response("not found", { status: 404 });  },};