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/*
* Copyright (C) 2018 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.server.wifi;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import android.net.wifi.ITrafficStateCallback;
import android.net.wifi.WifiManager;
import android.os.IBinder;
import android.os.RemoteException;
import android.os.test.TestLooper;
import androidx.test.filters.SmallTest;
import com.android.server.wifi.util.ExternalCallbackTracker;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
/**
* Unit tests for {@link com.android.server.wifi.WifiTrafficPoller}.
*/
@SmallTest
public class WifiTrafficPollerTest {
public static final String TAG = "WifiTrafficPollerTest";
private TestLooper mLooper;
private WifiTrafficPoller mWifiTrafficPoller;
private final static long DEFAULT_PACKET_COUNT = 10;
private final static long TX_PACKET_COUNT = 40;
private final static long RX_PACKET_COUNT = 50;
private static final int TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER = 14;
@Mock IBinder mAppBinder;
@Mock ITrafficStateCallback mTrafficStateCallback;
@Mock ExternalCallbackTracker<ITrafficStateCallback> mCallbackTracker;
/**
* Called before each test
*/
@Before
public void setUp() throws Exception {
// Ensure looper exists
mLooper = new TestLooper();
MockitoAnnotations.initMocks(this);
mWifiTrafficPoller = new WifiTrafficPoller(mLooper.getLooper());
// Set the current mTxPkts and mRxPkts to DEFAULT_PACKET_COUNT
mWifiTrafficPoller.notifyOnDataActivity(DEFAULT_PACKET_COUNT, DEFAULT_PACKET_COUNT);
}
/**
* Verify that clients should be notified of activity in case Tx/Rx packet count changes.
*/
@Test
public void testClientNotification() throws RemoteException {
// Register Client to verify that Tx/RX packet message is properly received.
mWifiTrafficPoller.addCallback(
mAppBinder, mTrafficStateCallback, TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
mWifiTrafficPoller.notifyOnDataActivity(TX_PACKET_COUNT, RX_PACKET_COUNT);
// Client should get the DATA_ACTIVITY_NOTIFICATION
verify(mTrafficStateCallback).onStateChanged(
WifiManager.TrafficStateCallback.DATA_ACTIVITY_INOUT);
}
/**
* Verify that remove client should be handled
*/
@Test
public void testRemoveClient() throws RemoteException {
// Register Client to verify that Tx/RX packet message is properly received.
mWifiTrafficPoller.addCallback(
mAppBinder, mTrafficStateCallback, TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
mWifiTrafficPoller.removeCallback(TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
verify(mAppBinder).unlinkToDeath(any(), anyInt());
mWifiTrafficPoller.notifyOnDataActivity(TX_PACKET_COUNT, RX_PACKET_COUNT);
// Client should not get any message after the client is removed.
verify(mTrafficStateCallback, never()).onStateChanged(anyInt());
}
/**
* Verify that remove client ignores when callback identifier is wrong.
*/
@Test
public void testRemoveClientWithWrongIdentifier() throws RemoteException {
// Register Client to verify that Tx/RX packet message is properly received.
mWifiTrafficPoller.addCallback(
mAppBinder, mTrafficStateCallback, TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
mWifiTrafficPoller.removeCallback(TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER + 5);
mLooper.dispatchAll();
mWifiTrafficPoller.notifyOnDataActivity(TX_PACKET_COUNT, RX_PACKET_COUNT);
// Client should get the DATA_ACTIVITY_NOTIFICATION
verify(mTrafficStateCallback).onStateChanged(
WifiManager.TrafficStateCallback.DATA_ACTIVITY_INOUT);
}
/**
*
* Verify that traffic poller registers for death notification on adding client.
*/
@Test
public void registersForBinderDeathOnAddClient() throws Exception {
mWifiTrafficPoller.addCallback(
mAppBinder, mTrafficStateCallback, TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
verify(mAppBinder).linkToDeath(any(IBinder.DeathRecipient.class), anyInt());
}
/**
*
* Verify that traffic poller registers for death notification on adding client.
*/
@Test
public void addCallbackFailureOnLinkToDeath() throws Exception {
doThrow(new RemoteException())
.when(mAppBinder).linkToDeath(any(IBinder.DeathRecipient.class), anyInt());
mWifiTrafficPoller.addCallback(
mAppBinder, mTrafficStateCallback, TEST_TRAFFIC_STATE_CALLBACK_IDENTIFIER);
verify(mAppBinder).linkToDeath(any(IBinder.DeathRecipient.class), anyInt());
mWifiTrafficPoller.notifyOnDataActivity(TX_PACKET_COUNT, RX_PACKET_COUNT);
// Client should not get any message callback add failed.
verify(mTrafficStateCallback, never()).onStateChanged(anyInt());
}
}
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