[Testing] Use AndroidJUnit4 instead in GlobalSettingsChangeListenerTest

/*

 * 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 org.mockito.Mockito.doNothing;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.times;

import static org.mockito.Mockito.verify;

import android.content.Context;

import android.os.Looper;

import android.provider.Settings;

import androidx.lifecycle.Lifecycle;

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;

@RunWith(AndroidJUnit4.class)

public class GlobalSettingsChangeListenerTest {

    @Mock

    private Lifecycle mLifecycle;

    private Context mContext;

    private TestListener mTestListener;

    private static final String SETTINGS_FIELD = Settings.Global.AIRPLANE_MODE_ON;

    public class TestListener extends GlobalSettingsChangeListener {

        TestListener(Looper looper, Context context, String field) {

            super(looper, context, field);

        }

        @Override

        public void onChanged(String field) {}

    }

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mContext = spy(ApplicationProvider.getApplicationContext());

        mTestListener = spy(new TestListener(Looper.getMainLooper(), mContext, SETTINGS_FIELD));

        doNothing().when(mLifecycle).addObserver(mTestListener);

        doNothing().when(mLifecycle).removeObserver(mTestListener);

    }

    /*

     * The method onChange is override from {@link ContentObserver}, and when the content change

     * occurs will be called. And the method onChanged is subclass from

     * {@link GlobalSettingsChangeListener}, it will be called when the onChange be called.

     */

    @Test

    public void whenChanged_onChangedBeenCalled() {

        mTestListener.onChange(false);

        verify(mTestListener, times(1)).onChanged(SETTINGS_FIELD);

    }

    @Test

    public void whenNotifyChangeBasedOnLifecycle_onStopEvent_onChangedNotCalled() {

        mTestListener.notifyChangeBasedOn(mLifecycle);

        mTestListener.onStart();

        mTestListener.onChange(false);

        verify(mTestListener, times(1)).onChanged(SETTINGS_FIELD);

        mTestListener.onStop();

        mTestListener.onChange(false);

        verify(mTestListener, times(1)).onChanged(SETTINGS_FIELD);

        mTestListener.onStart();

        mTestListener.onChange(false);

        verify(mTestListener, times(2)).onChanged(SETTINGS_FIELD);

    }

}