[Testing] Use AndroidJUnit4 instead in TelephonyBasePreferenceControllerTest

/*

 * Copyright (C) 2020 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.settings.network.telephony;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.when;

import android.content.Context;

import android.telephony.SubscriptionInfo;

import android.telephony.SubscriptionManager;

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 java.util.Arrays;

@RunWith(AndroidJUnit4.class)

public class TelephonyBasePreferenceControllerTest {

    private static final int VALID_SUB_ID = 1;

    @Mock

    private SubscriptionManager mSubscriptionManager;

    @Mock

    private SubscriptionInfo mSubscriptionInfo;

    private TestPreferenceController mPreferenceController;

    private Context mContext;

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mContext = spy(ApplicationProvider.getApplicationContext());

        when(mContext.getSystemService(SubscriptionManager.class))

                .thenReturn(mSubscriptionManager);

        when(mSubscriptionInfo.getSubscriptionId()).thenReturn(VALID_SUB_ID);

        mPreferenceController = new TestPreferenceController(mContext, "prefKey");

    }

    @Test

    public void isAvailable_validSubIdSet_returnTrue() {

        mPreferenceController.init(VALID_SUB_ID);

        assertThat(mPreferenceController.isAvailable()).isTrue();

    }

    @Test

    public void isAvailable_noIdSetHoweverHasDefaultOne_returnTrue() {

        when(mSubscriptionManager.getActiveSubscriptionInfoList()).thenReturn(

                Arrays.asList(mSubscriptionInfo));

        assertThat(mPreferenceController.isAvailable()).isTrue();

    }

    @Test

    public void isAvailable_noDefaultAndNoSet_returnFalse() {

        assertThat(mPreferenceController.isAvailable()).isFalse();

    }

    /**

     * Test preference controller for {@link TelephonyBasePreferenceController}

     */

    public class TestPreferenceController extends TelephonyBasePreferenceController {

        public TestPreferenceController(Context context, String prefKey) {

            super(context, prefKey);

        }

        public void init(int subId) {

            mSubId = subId;

        }

        @Override

        public int getAvailabilityStatus(int subId) {

            return subId == VALID_SUB_ID ? AVAILABLE : UNSUPPORTED_ON_DEVICE;

        }

    }

}