Add AvrcpBipClientTest

import android.util.Log;

import com.android.bluetooth.BluetoothObexTransport;

import com.android.internal.annotations.VisibleForTesting;

import com.android.obex.ClientSession;

import com.android.obex.HeaderSet;

import com.android.obex.ResponseCodes;

    /**

     * Update our client's connection state and notify of the new status

     */

    private void setConnectionState(int state) {

    @VisibleForTesting

    void setConnectionState(int state) {

        int oldState = -1;

        synchronized (this) {

            oldState = mState;

        }

    }

    private String getStateName() {

    @VisibleForTesting

    String getStateName() {

        int state = getState();

        switch (state) {

            case BluetoothProfile.STATE_DISCONNECTED:

/*

 * Copyright 2022 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.bluetooth.avrcpcontroller;

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

import static org.junit.Assert.assertThrows;

import static org.mockito.ArgumentMatchers.anyString;

import static org.mockito.Mockito.doReturn;

import android.bluetooth.BluetoothAdapter;

import android.bluetooth.BluetoothDevice;

import android.bluetooth.BluetoothProfile;

import androidx.test.filters.SmallTest;

import androidx.test.rule.ServiceTestRule;

import androidx.test.runner.AndroidJUnit4;

import com.android.bluetooth.TestUtils;

import com.android.bluetooth.btservice.AdapterService;

import org.junit.After;

import org.junit.Before;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

@SmallTest

@RunWith(AndroidJUnit4.class)

public class AvrcpBipClientTest {

    private static final int TEST_PSM = 1;

    @Rule

    public final ServiceTestRule mServiceRule = new ServiceTestRule();

    @Mock

    private AdapterService mAdapterService;

    private BluetoothAdapter mAdapter;

    private BluetoothDevice mTestDevice;

    private AvrcpControllerService mService = null;

    private AvrcpCoverArtManager mArtManager;

    private AvrcpBipClient mClient;

    @Before

    public void setUp() throws Exception {

        MockitoAnnotations.initMocks(this);

        TestUtils.setAdapterService(mAdapterService);

        doReturn(true, false).when(mAdapterService).isStartedProfile(anyString());

        TestUtils.startService(mServiceRule, AvrcpControllerService.class);

        mService = AvrcpControllerService.getAvrcpControllerService();

        mAdapter = BluetoothAdapter.getDefaultAdapter();

        mTestDevice = mAdapter.getRemoteDevice("00:01:02:03:04:05");

        AvrcpCoverArtManager.Callback callback = (device, event) -> {

        };

        mArtManager = new AvrcpCoverArtManager(mService, callback);

        mClient = new AvrcpBipClient(mTestDevice, TEST_PSM,

                mArtManager.new BipClientCallback(mTestDevice));

    }

    @After

    public void tearDown() throws Exception {

        TestUtils.stopService(mServiceRule, AvrcpControllerService.class);

        mService = AvrcpControllerService.getAvrcpControllerService();

        assertThat(mService).isNull();

        TestUtils.clearAdapterService(mAdapterService);

        mArtManager.cleanup();

    }

    @Test

    public void constructor() {

        AvrcpBipClient client = new AvrcpBipClient(mTestDevice, TEST_PSM,

                mArtManager.new BipClientCallback(mTestDevice));

        assertThat(client.getL2capPsm()).isEqualTo(TEST_PSM);

    }

    @Test

    public void constructor_withNullDevice() {

        assertThrows(NullPointerException.class, () -> new AvrcpBipClient(null, TEST_PSM,

                mArtManager.new BipClientCallback(mTestDevice)));

    }

    @Test

    public void constructor_withNullCallback() {

        assertThrows(NullPointerException.class, () -> new AvrcpBipClient(mTestDevice, TEST_PSM,

                null));

    }

    @Test

    public void setConnectionState() {

        mClient.setConnectionState(BluetoothProfile.STATE_CONNECTING);

        assertThat(mClient.getState()).isEqualTo(BluetoothProfile.STATE_CONNECTING);

    }

    @Test

    public void getConnectionState() {

        mClient.setConnectionState(BluetoothProfile.STATE_DISCONNECTED);

        assertThat(mClient.getStateName()).isEqualTo("Disconnected");

        mClient.setConnectionState(BluetoothProfile.STATE_CONNECTING);

        assertThat(mClient.getStateName()).isEqualTo("Connecting");

        mClient.setConnectionState(BluetoothProfile.STATE_CONNECTED);

        assertThat(mClient.getStateName()).isEqualTo("Connected");

        mClient.setConnectionState(BluetoothProfile.STATE_DISCONNECTING);

        assertThat(mClient.getStateName()).isEqualTo("Disconnecting");

        int invalidState = 4;

        mClient.setConnectionState(invalidState);

        assertThat(mClient.getStateName()).isEqualTo("Unknown");

    }

    @Test

    public void toString_returnsClientInfo() {

        AvrcpBipClient client = new AvrcpBipClient(mTestDevice, TEST_PSM,

                mArtManager.new BipClientCallback(mTestDevice));

        String expected = "<AvrcpBipClient" + " device=" + mTestDevice.getAddress() + " psm="

                + TEST_PSM + " state=" + client.getStateName() + ">";

        assertThat(client.toString()).isEqualTo(expected);

    }

}