tests/telephonytests/src/com/android/internal/telephony/PhoneStateListenerTest.java

/*
 * Copyright (C) 2016 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.internal.telephony;

import android.os.HandlerThread;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.test.suitebuilder.annotation.SmallTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.lang.reflect.Field;
import static org.mockito.Mockito.verify;

public class PhoneStateListenerTest extends TelephonyTest {

    private PhoneStateListener mPhoneStateListenerUT;
    private PhoneStateListenerHandler mPhoneStateListenerHandler;

    private class PhoneStateListenerHandler extends HandlerThread {
        private PhoneStateListenerHandler(String name) {
            super(name);
        }
        @Override
        public void onLooperPrepared() {

            mPhoneStateListenerUT = new PhoneStateListener() {
                @Override
                public void onServiceStateChanged(ServiceState serviceState) {
                    logd("Service State Changed");
                    mServiceState.setVoiceRegState(serviceState.getVoiceRegState());
                    mServiceState.setDataRegState(serviceState.getDataRegState());
                    setReady(true);
                }
            };
            setReady(true);
        }
    }

    @Before
    public void setUp() throws Exception {
        this.setUp(this.getClass().getSimpleName());
        mPhoneStateListenerHandler = new PhoneStateListenerHandler(TAG);
        mPhoneStateListenerHandler.start();
        waitUntilReady();
    }

    @After
    public void tearDown() throws Exception {
        mPhoneStateListenerHandler.quitSafely();
        super.tearDown();
    }

    @Test @SmallTest
    public void testTriggerServiceStateChanged() throws Exception {
        Field field = PhoneStateListener.class.getDeclaredField("callback");
        field.setAccessible(true);

        ServiceState ss = new ServiceState();
        ss.setDataRegState(ServiceState.STATE_IN_SERVICE);
        ss.setVoiceRegState(ServiceState.STATE_EMERGENCY_ONLY);

        setReady(false);
        ((IPhoneStateListener) field.get(mPhoneStateListenerUT)).onServiceStateChanged(ss);
        waitUntilReady();

        verify(mServiceState).setDataRegState(ServiceState.STATE_IN_SERVICE);
        verify(mServiceState).setVoiceRegState(ServiceState.STATE_EMERGENCY_ONLY);
    }

}