[android-components](../../index.md) / [mozilla.components.support.utils](../index.md) / [ThreadUtils](index.md) / [setHandlerForTest](./set-handler-for-test.md)

# setHandlerForTest

`fun setHandlerForTest(handler: <ERROR CLASS>): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/support/utils/src/main/java/mozilla/components/support/utils/ThreadUtils.kt#L29)