{% setvar book_path %}/reference/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}

AndroidJUnit4

public final class AndroidJUnit4 extends Runner implements Filterable, Sortable

java.lang.Object
↳	org.junit.runner.Runner
	↳	androidx.test.ext.junit.runners.AndroidJUnit4

A JUnit4 runner for Android tests.

This runner offers several features on top of the standard JUnit4 runner,

Supports running on Robolectric. This implementation will delegate to RobolectricTestRunner if test is running in Robolectric enviroment. A custom runner can be provided by specifying the full class name in a 'android.junit.runner' system property.
Supports a per-test timeout - specfied via a 'timeout_msec' argument.
Supports running tests on the application's UI Thread, for tests annotated with .

Usage @RunWith(AndroidJUnit4.class)

Summary

Public constructors
`AndroidJUnit4(Class<Object> klass)`

Public methods
`void`	`filter(Filter filter)`
`Description`	`getDescription()`
`void`	`run(RunNotifier runNotifier)`
`void`	`sort(Sorter sorter)`

From class org.junit.runner.Runner

int

testCount()

public AndroidJUnit4(Class<Object> klass)

public void filter(Filter filter)

Throws
`org.junit.runner.manipulation.NoTestsRemainException org.junit.runner.manipulation.NoTestsRemainException`

public Description getDescription()

public void run(RunNotifier runNotifier)

public void sort(Sorter sorter)