fix: show actual unhandled errors, serialize DOMErrors

packages/vitest/src/node/error.ts

@@ -91,8 +91,6 @@ function printErrorType(type: string, ctx: Vitest) {
 }
 
 const skipErrorProperties = [
-  'message',
-  'name',
   'nameStr',
   'stack',
   'cause',
@@ -102,8 +100,8 @@ const skipErrorProperties = [
   'showDiff',
   'actual',
   'expected',
-  'constructor',
-  'toString',
+  ...Object.getOwnPropertyNames(Error.prototype),
+  ...Object.getOwnPropertyNames(Object.prototype),
 ]
 
 function getErrorProperties(e: ErrorWithDiff) {

packages/vitest/src/runtime/error.ts

@@ -53,10 +53,10 @@ export function serializeError(val: any, seen = new WeakMap()): any {
     let obj = val
     while (obj && obj !== OBJECT_PROTO) {
       Object.getOwnPropertyNames(obj).forEach((key) => {
-        if ((key in clone))
+        if (key in clone)
           return
         try {
-          clone[key] = serializeError(obj[key], seen)
+          clone[key] = serializeError(val[key], seen)
         }
         catch (err) {
           // delete in case it has a setter from prototype that might throw

packages/vitest/src/runtime/worker.ts

@@ -8,6 +8,7 @@ import { getWorkerState } from '../utils'
 import type { MockMap } from '../types/mocker'
 import { executeInViteNode } from './execute'
 import { rpc } from './rpc'
+import { processError } from './error'
 
 let _viteNode: {
   run: (files: string[], config: ResolvedConfig) => Promise<void>
@@ -32,7 +33,7 @@ async function startViteNode(ctx: WorkerContext) {
   }
 
   process.on('unhandledRejection', (err) => {
-    rpc().onUnhandledRejection(err)
+    rpc().onUnhandledRejection(processError(err))
   })
 
   const { config } = ctx

test/core/test/serialize.test.ts

@@ -1,3 +1,5 @@
+// @vitest-environment jsdom
+
 import { describe, expect, it } from 'vitest'
 import { serializeError } from '../../../packages/vitest/src/runtime/error'
 
@@ -125,4 +127,14 @@ describe('error serialize', () => {
       unserializable: '<unserializable>: I am unserializable',
     })
   })
+
+  it('can serialize DOMException', () => {
+    const err = new DOMException('You failed', 'InvalidStateError')
+    expect(serializeError(err)).toMatchObject({
+      NETWORK_ERR: 19,
+      name: 'InvalidStateError',
+      message: 'You failed',
+      stack: expect.stringContaining('InvalidStateError: You failed'),
+    })
+  })
 })