[Testing] Use AndroidJUnit4 instead in NetworkDashboardFragmentTest

/*

 * 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;

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

import android.app.Instrumentation;

import android.content.Context;

import android.provider.SearchIndexableResource;

import androidx.test.core.app.ApplicationProvider;

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

import androidx.test.platform.app.InstrumentationRegistry;

import com.android.settingslib.drawer.CategoryKey;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import java.util.List;

@RunWith(AndroidJUnit4.class)

public class NetworkDashboardFragmentTest {

    private Context mContext;

    private NetworkDashboardFragment mFragment;

    @Before

    public void setUp() {

        mContext = ApplicationProvider.getApplicationContext();

        final Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();

        instrumentation.runOnMainSync(() -> {

            mFragment = new NetworkDashboardFragment();

        });

    }

    @Test

    public void getCategoryKey_isNetwork() {

        assertThat(mFragment.getCategoryKey()).isEqualTo(CategoryKey.CATEGORY_NETWORK);

    }

    @Test

    public void getXmlResourcesToIndex_shouldIncludeFragmentXml() {

        final List<SearchIndexableResource> indexRes =

                NetworkDashboardFragment.SEARCH_INDEX_DATA_PROVIDER.getXmlResourcesToIndex(

                        mContext,

                        true /* enabled */);

        assertThat(indexRes).hasSize(1);

        assertThat(indexRes.get(0).xmlResId).isEqualTo(mFragment.getPreferenceScreenResId());

    }

}