fix: rpc timeout error messages to include caller

[AriPerkkio]

Description

• Ref. feat: add onTimeoutError option antfu/birpc#13

Improves error messages caused by birpc timeouts. Currently it can be difficult to track down a birpc timeout error as those are used in multiple modules. This PR extends the error message to include the caller in Vitest's context. The test runner's RPC also adds arguments of some known functions.

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[hi-ogawa]

Looks good!
I tested locally by patching fetch and timeout:

Show diff

diff --git a/packages/vitest/src/node/pools/rpc.ts b/packages/vitest/src/node/pools/rpc.ts
index 3144e3c7..7fe3fdb5 100644
--- a/packages/vitest/src/node/pools/rpc.ts
+++ b/packages/vitest/src/node/pools/rpc.ts
@@ -20,7 +20,11 @@ export function createMethodsRPC(project: WorkspaceProject): RuntimeRPC {
       const r = await project.vitenode.transformRequest(id)
       return r?.map as RawSourceMap | undefined
     },
-    fetch(id, transformMode) {
+    async fetch(id, transformMode) {
+      if (id === "/@vite/env") {
+        console.log("sleeping...")
+        await new Promise(resolve => setTimeout(resolve, 2_000))
+      }
       return project.vitenode.fetchModule(id, transformMode)
     },
     resolveId(id, importer, transformMode) {
diff --git a/packages/vitest/src/runtime/rpc.ts b/packages/vitest/src/runtime/rpc.ts
index c5723f2d..fed0f5c3 100644
--- a/packages/vitest/src/runtime/rpc.ts
+++ b/packages/vitest/src/runtime/rpc.ts
@@ -76,6 +76,7 @@ export function createRuntimeRpc(options: Pick<BirpcOptions<RuntimeRPC>, 'on' |
         throw new Error(message)
       },
       ...options,
+      timeout: 1_000
     },
   ))

$ pnpm -C test/core test basic.test.ts

> @vitest/test-core@ test /home/hiroshi/code/others/vitest/test/core
> vitest "basic.test.ts"


 DEV  v1.2.2 /home/hiroshi/code/others/vitest/test/core

sleeping...

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Vitest caught 1 unhandled error during the test run.
This might cause false positive tests. Resolve unhandled errors to make sure your tests are not affected.

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ Unhandled Error ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Error: [vitest-worker]: Timeout calling "fetch" with "["/@vite/env","ssr"]"
 ❯ Object.onTimeoutError ../../packages/vitest/dist/vendor/rpc._cY2a4B3.js:58:15
 ❯ Timeout._onTimeout ../../packages/vitest/dist/vendor/index.8bPxjt7g.js:39:41
 ❯ listOnTimeout node:internal/timers:573:17
 ❯ process.processTimers node:internal/timers:514:7