# androidx.arch.core.executor.testing

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## Classes

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| `https://developer.android.com/reference/kotlin/androidx/arch/core/executor/testing/CountingTaskExecutorRule` | A JUnit Test Rule that swaps the background executor used by the Architecture Components with a different one which counts the tasks as they are start and finish. |
| `https://developer.android.com/reference/kotlin/androidx/arch/core/executor/testing/InstantTaskExecutorRule` | A JUnit Test Rule that swaps the background executor used by the Architecture Components with a different one which executes each task synchronously. |