feat: run component cleanup if it's registered

packages/browser/src/client/tester/tester.ts

@@ -1,4 +1,5 @@
 import { SpyModule, collectTests, setupCommonEnv, startTests } from 'vitest/browser'
+import { page } from '@vitest/browser/context'
 import { channel, client, onCancel } from '@vitest/browser/client'
 import { getBrowserState, getConfig, getWorkerState } from '../utils'
 import { setupDialogsSpy } from './dialog'
@@ -8,6 +9,8 @@ import { browserHashMap, initiateRunner } from './runner'
 import { VitestBrowserClientMocker } from './mocker'
 import { setupExpectDom } from './expect-element'
 
+const cleanupSymbol = Symbol.for('vitest:component-cleanup')
+
 const url = new URL(location.href)
 const reloadStart = url.searchParams.get('__reloadStart')
 
@@ -123,6 +126,18 @@ async function executeTests(method: 'run' | 'collect', files: string[]) {
  }
  }
  finally {
+ try {
+ if (cleanupSymbol in page) {
+ (page[cleanupSymbol] as any)()
+ }
+ }
+ catch (error: any) {
+ await client.rpc.onUnhandledError({
+ name: error.name,
+ message: error.message,
+ stack: String(error.stack),
+ }, 'Cleanup Error')
+ }
  state.environmentTeardownRun = true
  debug('finished running tests')
  done(files)