Merge changes I89162011,I110727b6,I1778832b am: cbc2c4f1

package com.android.settings.network;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

import android.content.ContentResolver;

import android.content.Context;

import android.provider.Settings;

import android.test.mock.MockContentResolver;

import androidx.test.core.app.ApplicationProvider;

import androidx.test.ext.junit.runners.AndroidJUnit4;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.RobolectricTestRunner;

import org.robolectric.RuntimeEnvironment;

@RunWith(RobolectricTestRunner.class)

@RunWith(AndroidJUnit4.class)

public class PreferredNetworkModeContentObserverTest {

    private static final int SUB_ID = 1;

    @Mock

    private ContentResolver mResolver;

    @Mock

    private Context mContext;

    private MockContentResolver mResolver;

    private PreferredNetworkModeContentObserver mPreferredNetworkModeContentObserver;

    @Mock

    private PreferredNetworkModeContentObserver.OnPreferredNetworkModeChangedListener mListener;

    private PreferredNetworkModeContentObserver mPreferredNetworkModeContentObserver;

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mContext = spy(ApplicationProvider.getApplicationContext());

        mResolver = spy(new MockContentResolver(mContext));

        when(mContext.getContentResolver()).thenReturn(mResolver);

        mPreferredNetworkModeContentObserver =

                spy(new PreferredNetworkModeContentObserver(null));

        verify(mResolver).unregisterContentObserver(mPreferredNetworkModeContentObserver);

    }

}