[android-components](../../index.md) / [mozilla.components.support.test.rule](../index.md) / [MainCoroutineRule](index.md) / [starting](./starting.md)

# starting

`protected fun starting(description: Description?): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/support/test/src/main/java/mozilla/components/support/test/rule/MainCoroutineRule.kt#L30)