---
title: "unregisterIdlingResource"
description: "Attempts to unregister an IdlingResource in this test."
type: "function"
lastmod: "2026-05-20T01:13:53.142863Z"
---
## API Reference

### unregisterIdlingResource

> Source set: Common

```kotlin
@ExperimentalTestApi
fun ComposeUiTest.unregisterIdlingResource(idlingResource: IdlingResource): Boolean
```

Attempts to unregister an [IdlingResource](/jetpack-compose/androidx.compose.ui/ui-test/interfaces/IdlingResource) in this test.

This implementation checks [isIdlingResourceSupported](/jetpack-compose/androidx.compose.ui/ui-test/functions/isIdlingResourceSupported) before attempting to unregister the
resource.

#### Returns

| | |
| --- | --- |
|  | true if the idling resource was successfully unregistered, or false if the implementation does not support idling resources. |