testing setup

test/trpc/vitest.trpcProxyClient.ts

@@ -0,0 +1,26 @@
+import { createTRPCProxyClient, httpBatchLink } from '@trpc/client'
+import { fetchRequestHandler } from '@trpc/server/adapters/fetch'
+import { trpcRouter, type TrpcRouter } from '~/server/routers/_app'
+
+// This simulates the server without HTTP
+function serverHandler(path: string, req: Request) {
+  return fetchRequestHandler({
+    endpoint: '/api/trpc',
+    router: trpcRouter,
+    req,
+    createContext: () => ({}),
+  })
+}
+
+export function createTestTrpcClient() {
+  return createTRPCProxyClient<TrpcRouter>({
+    links: [
+      httpBatchLink({
+        url: 'http://localhost/api/trpc',
+        fetch: (input, init) => {
+          return serverHandler(input as string, new Request(input as string, init))
+        },
+      }),
+    ],
+  })
+}