p2p: unit tests for WifiP2pInfo

/*

 * Copyright (C) 2019 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 android.net.wifi.p2p;

import static org.junit.Assert.assertEquals;

import android.os.Parcel;

import androidx.test.filters.SmallTest;

import org.junit.Before;

import org.junit.Test;

import java.net.InetAddress;

/**

 * Unit test harness for {@link android.net.wifi.p2p.WifiP2pInfo}

 */

@SmallTest

public class WifiP2pInfoTest {

    private InetAddress mGroupOnwerIpv4Address;

    @Before

    public void setUp() throws Exception {

        byte[] ipv4 = {(byte) 192, (byte) 168, (byte) 49, (byte) 1};

        mGroupOnwerIpv4Address = InetAddress.getByAddress(ipv4);

    }

    /**

     * Verifies copy constructor.

     */

    @Test

    public void testCopyOperator() throws Exception {

        WifiP2pInfo info = new WifiP2pInfo();

        info.groupFormed = true;

        info.isGroupOwner = true;

        info.groupOwnerAddress = mGroupOnwerIpv4Address;

        WifiP2pInfo copiedInfo = new WifiP2pInfo(info);

        // no equals operator, use toString for data comparison.

        assertEquals(info.toString(), copiedInfo.toString());

    }

    /**

     * Verifies parcel serialization/deserialization.

     */

    @Test

    public void testParcelOperation() throws Exception {

        WifiP2pInfo info = new WifiP2pInfo();

        info.groupFormed = true;

        info.isGroupOwner = true;

        info.groupOwnerAddress = mGroupOnwerIpv4Address;

        Parcel parcelW = Parcel.obtain();

        info.writeToParcel(parcelW, 0);

        byte[] bytes = parcelW.marshall();

        parcelW.recycle();

        Parcel parcelR = Parcel.obtain();

        parcelR.unmarshall(bytes, 0, bytes.length);

        parcelR.setDataPosition(0);

        WifiP2pInfo fromParcel = WifiP2pInfo.CREATOR.createFromParcel(parcelR);

        // no equals operator, use toString for data comparison.

        assertEquals(info.toString(), fromParcel.toString());

    }

}