Use androidx shadow for Fragment testing.

import com.android.settingslib.core.lifecycle.events.OnResume;

import com.android.settingslib.core.lifecycle.events.OnStart;

import com.android.settingslib.core.lifecycle.events.OnStop;

import com.android.settingslib.testutils.FragmentTestUtils;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.robolectric.Robolectric;

import org.robolectric.android.controller.ActivityController;

import org.robolectric.shadows.androidx.fragment.FragmentController;

@RunWith(SettingsLibRobolectricTestRunner.class)

public class LifecycleTest {

    @Test

    public void runThroughDialogFragmentLifecycles_shouldObserveEverything() {

        final TestDialogFragment fragment = new TestDialogFragment();

        FragmentTestUtils.startFragment(fragment);

        FragmentController.setupFragment(fragment);

        fragment.onCreateOptionsMenu(null, null);

        fragment.onPrepareOptionsMenu(null);

    @Test

    public void runThroughFragmentLifecycles_shouldObserveEverything() {

        final TestFragment fragment = new TestFragment();

        FragmentTestUtils.startFragment(fragment);

        FragmentController.setupFragment(fragment);

        fragment.onCreateOptionsMenu(null, null);

        fragment.onPrepareOptionsMenu(null);

    @Test

    public void onOptionItemSelectedShortCircuitsIfAnObserverHandlesTheMenuItem() {

        final TestFragment fragment = new TestFragment();

        FragmentTestUtils.startFragment(fragment);

        FragmentController.setupFragment(fragment);

        final OptionItemAccepter accepter = new OptionItemAccepter();

        fragment.getLifecycle().addObserver(accepter);