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/*
* Copyright (C) 2021 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.d2d;
import static junit.framework.Assert.assertEquals;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.verify;
import android.telecom.Connection;
import android.test.suitebuilder.annotation.SmallTest;
import android.util.ArraySet;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Captor;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
@RunWith(AndroidJUnit4.class)
public class CommunicatorTest {
private List<TransportProtocol> mTransportProtocols = new ArrayList<>();
private TransportProtocol.Callback mCallback;
private Communicator mCommunicator;
@Mock
private Communicator.Callback mCommunicatorCallback;
@Captor
private ArgumentCaptor<Set<Communicator.Message>> mMessagesCaptor;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
TransportProtocol protocol1 = getMockTransportProtocol();
TransportProtocol protocol2 = getMockTransportProtocol();
mTransportProtocols.add(protocol1);
mTransportProtocols.add(protocol2);
}
/**
* Verifies that we can setup the communicator and negotiate a transport.
*/
@SmallTest
@Test
public void testNegotiate() {
mCommunicator = new Communicator(mTransportProtocols, mCommunicatorCallback);
mCommunicator.onStateChanged(null, Connection.STATE_ACTIVE);
verify(mTransportProtocols.get(0)).startNegotiation();
assertEquals(mTransportProtocols.get(0), mCommunicator.getActiveTransport());
// Assume negotiation on the first one failed.
mCallback.onNegotiationFailed(mTransportProtocols.get(0));
verify(mTransportProtocols.get(1)).startNegotiation();
assertEquals(mTransportProtocols.get(1), mCommunicator.getActiveTransport());
mCallback.onNegotiationSuccess(mTransportProtocols.get(1));
verify(mCommunicatorCallback).onD2DAvailabilitychanged(eq(true));
}
/**
* Verifies that D2D negotiation failed callback is invoked when D2D could not be negotiated.
*/
@SmallTest
@Test
public void testNegotiationFailed() {
mCommunicator = new Communicator(mTransportProtocols, mCommunicatorCallback);
mCommunicator.onStateChanged(null, Connection.STATE_ACTIVE);
verify(mTransportProtocols.get(0)).startNegotiation();
assertEquals(mTransportProtocols.get(0), mCommunicator.getActiveTransport());
// Assume negotiation on the first one failed.
mCallback.onNegotiationFailed(mTransportProtocols.get(0));
verify(mTransportProtocols.get(1)).startNegotiation();
assertEquals(mTransportProtocols.get(1), mCommunicator.getActiveTransport());
// Oops, the second one failed too; not negotiated!
mCallback.onNegotiationFailed(mTransportProtocols.get(1));
verify(mCommunicatorCallback).onD2DAvailabilitychanged(eq(false));
}
/**
* Verifies that D2D negotiation failed callback is invoked when no transports are available.
*/
@SmallTest
@Test
public void testNegotiationFailedNoProtocols() {
mCommunicator = new Communicator(Collections.EMPTY_LIST, mCommunicatorCallback);
mCommunicator.onStateChanged(null, Connection.STATE_ACTIVE);
verify(mCommunicatorCallback).onD2DAvailabilitychanged(eq(false));
}
/**
* Verifies that we can relay messages to send via the active transport.
*/
@SmallTest
@Test
public void testSendMessage() {
testNegotiate();
TransportProtocol protocol = mCommunicator.getActiveTransport();
// Send a couple test messages.
ArraySet<Communicator.Message> test = new ArraySet<>();
test.add(new Communicator.Message(Communicator.MESSAGE_DEVICE_BATTERY_STATE,
Communicator.BATTERY_STATE_GOOD));
test.add(new Communicator.Message(Communicator.MESSAGE_CALL_AUDIO_CODEC,
Communicator.AUDIO_CODEC_EVS));
mCommunicator.sendMessages(test);
// Ensure they got relayed to the transport protocol intact.
verify(protocol).sendMessages(mMessagesCaptor.capture());
Set<Communicator.Message> send = mMessagesCaptor.getValue();
assertEquals(test, send);
}
/**
* Verifies that we can relay messages received via the active transport to interested parties.
*/
@SmallTest
@Test
public void testReceiveMessage() {
testNegotiate();
TransportProtocol protocol = mCommunicator.getActiveTransport();
// Receive some messages
ArraySet<Communicator.Message> test = new ArraySet<>();
test.add(new Communicator.Message(Communicator.MESSAGE_DEVICE_BATTERY_STATE,
Communicator.BATTERY_STATE_GOOD));
test.add(new Communicator.Message(Communicator.MESSAGE_CALL_AUDIO_CODEC,
Communicator.AUDIO_CODEC_EVS));
mCallback.onMessagesReceived(test);
// Ensure they got relayed to the communicator listener.
verify(mCommunicatorCallback).onMessagesReceived(mMessagesCaptor.capture());
Set<Communicator.Message> send = mMessagesCaptor.getValue();
assertEquals(test, send);
}
/**
* @return a mocked instance of {@link TransportProtocol}.
*/
private TransportProtocol getMockTransportProtocol() {
TransportProtocol transportProtocol = Mockito.mock(TransportProtocol.class);
doNothing().when(transportProtocol).startNegotiation();
doNothing().when(transportProtocol).sendMessages(any());
doAnswer(invocation -> {
mCallback = (TransportProtocol.Callback) invocation.getArgument(0);
return true;
}).when(transportProtocol).setCallback(any());
return transportProtocol;
}
}
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