Add unit tests for BluetoothAddress under BluetoothDevice

/*

 * Copyright 2024 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.bluetooth;

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

import android.bluetooth.BluetoothDevice.AddressType;

import android.bluetooth.BluetoothDevice.BluetoothAddress;

import android.os.Parcel;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.junit.runners.JUnit4;

/** Test cases for {@link BluetoothDevice}. */

@RunWith(JUnit4.class)

public class BluetoothDeviceTest {

    @Test

    public void testBluetoothAddress_empty() {

        BluetoothAddress bluetoothAddress =

                new BluetoothAddress(null, BluetoothDevice.ADDRESS_TYPE_UNKNOWN);

        assertThat(bluetoothAddress.getAddress()).isNull();

        assertThat(bluetoothAddress.getAddressType())

                .isEqualTo(BluetoothDevice.ADDRESS_TYPE_UNKNOWN);

    }

    @Test

    public void testBluetoothAddress_addressWithTypePublic() {

        doTestAddressWithType("00:11:22:AA:BB:CC", BluetoothDevice.ADDRESS_TYPE_PUBLIC);

    }

    @Test

    public void testBluetoothAddress_addressWithTypeRandom() {

        doTestAddressWithType("51:F7:A8:75:AC:5E", BluetoothDevice.ADDRESS_TYPE_RANDOM);

    }

    @Test

    public void testBluetoothAddress_Parcelable() {

        String address = "00:11:22:AA:BB:CC";

        int addressType = BluetoothDevice.ADDRESS_TYPE_PUBLIC;

        BluetoothAddress bluetoothAddress = new BluetoothAddress(address, addressType);

        doAssertBluetoothAddress(bluetoothAddress, address, addressType);

        Parcel parcel = Parcel.obtain();

        bluetoothAddress.writeToParcel(parcel, 0 /* flags */);

        parcel.setDataPosition(0);

        BluetoothAddress bluetoothAddressOut = BluetoothAddress.CREATOR.createFromParcel(parcel);

        parcel.recycle();

        doAssertBluetoothAddress(bluetoothAddressOut, address, addressType);

    }

    private void doTestAddressWithType(String address, @AddressType int addressType) {

        BluetoothAddress bluetoothAddress = new BluetoothAddress(address, addressType);

        doAssertBluetoothAddress(bluetoothAddress, address, addressType);

    }

    private void doAssertBluetoothAddress(

            BluetoothAddress bluetoothAddress, String address, @AddressType int addressType) {

        assertThat(bluetoothAddress.getAddress()).isEqualTo(address);

        assertThat(bluetoothAddress.getAddressType())

                .isEqualTo(

                        addressType == BluetoothDevice.ADDRESS_TYPE_RANDOM

                                ? BluetoothDevice.ADDRESS_TYPE_RANDOM

                                : BluetoothDevice.ADDRESS_TYPE_PUBLIC);

    }

}