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/*
* Copyright (C) 2012 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;
import android.content.Context;
import android.net.LinkAddress;
import android.net.LocalSocket;
import android.net.LocalServerSocket;
import android.os.Binder;
import android.test.AndroidTestCase;
import android.test.suitebuilder.annotation.LargeTest;
import com.android.server.net.BaseNetworkObserver;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.reset;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import java.io.IOException;
import java.io.OutputStream;
/**
* Tests for {@link NetworkManagementService}.
*/
@LargeTest
public class NetworkManagementServiceTest extends AndroidTestCase {
private static final String SOCKET_NAME = "__test__NetworkManagementServiceTest";
private NetworkManagementService mNMService;
private LocalServerSocket mServerSocket;
private LocalSocket mSocket;
private OutputStream mOutputStream;
@Override
public void setUp() throws Exception {
super.setUp();
// TODO: make this unnecessary. runtest might already make it unnecessary.
System.setProperty("dexmaker.dexcache", getContext().getCacheDir().toString());
// Set up a sheltered test environment.
BroadcastInterceptingContext context = new BroadcastInterceptingContext(getContext());
mServerSocket = new LocalServerSocket(SOCKET_NAME);
// Start the service and wait until it connects to our socket.
mNMService = NetworkManagementService.create(context, SOCKET_NAME);
mSocket = mServerSocket.accept();
mOutputStream = mSocket.getOutputStream();
}
@Override
public void tearDown() throws Exception {
if (mSocket != null) mSocket.close();
if (mServerSocket != null) mServerSocket.close();
super.tearDown();
}
/**
* Sends a message on the netd socket and gives the events some time to make it back.
*/
private void sendMessage(String message) throws IOException {
// Strings are null-terminated, so add "\0" at the end.
mOutputStream.write((message + "\0").getBytes());
}
private static <T> T expectSoon(T mock) {
return verify(mock, timeout(100));
}
/**
* Tests that network observers work properly.
*/
public void testNetworkObservers() throws Exception {
BaseNetworkObserver observer = mock(BaseNetworkObserver.class);
doReturn(new Binder()).when(observer).asBinder(); // Used by registerObserver.
mNMService.registerObserver(observer);
// Forget everything that happened to the mock so far, so we can explicitly verify
// everything that happens and does not happen to it from now on.
reset(observer);
// Now send NetworkManagementService messages and ensure that the observer methods are
// called. After every valid message we expect a callback soon after; to ensure that
// invalid messages don't cause any callbacks, we call verifyNoMoreInteractions at the end.
/**
* Interface changes.
*/
sendMessage("600 Iface added rmnet12");
expectSoon(observer).interfaceAdded("rmnet12");
sendMessage("600 Iface removed eth1");
expectSoon(observer).interfaceRemoved("eth1");
sendMessage("607 Iface removed eth1");
// Invalid code.
sendMessage("600 Iface borked lo down");
// Invalid event.
sendMessage("600 Iface changed clat4 up again");
// Extra tokens.
sendMessage("600 Iface changed clat4 up");
expectSoon(observer).interfaceStatusChanged("clat4", true);
sendMessage("600 Iface linkstate rmnet0 down");
expectSoon(observer).interfaceLinkStateChanged("rmnet0", false);
sendMessage("600 IFACE linkstate clat4 up");
// Invalid group.
/**
* Bandwidth control events.
*/
sendMessage("601 limit alert data rmnet_usb0");
expectSoon(observer).limitReached("data", "rmnet_usb0");
sendMessage("601 invalid alert data rmnet0");
// Invalid group.
sendMessage("601 limit increased data rmnet0");
// Invalid event.
/**
* Interface class activity.
*/
sendMessage("613 IfaceClass active rmnet0");
expectSoon(observer).interfaceClassDataActivityChanged("rmnet0", true, 0);
sendMessage("613 IfaceClass active rmnet0 1234");
expectSoon(observer).interfaceClassDataActivityChanged("rmnet0", true, 1234);
sendMessage("613 IfaceClass idle eth0");
expectSoon(observer).interfaceClassDataActivityChanged("eth0", false, 0);
sendMessage("613 IfaceClass idle eth0 1234");
expectSoon(observer).interfaceClassDataActivityChanged("eth0", false, 1234);
sendMessage("613 IfaceClass reallyactive rmnet0 1234");
expectSoon(observer).interfaceClassDataActivityChanged("rmnet0", false, 1234);
sendMessage("613 InterfaceClass reallyactive rmnet0");
// Invalid group.
/**
* IP address changes.
*/
sendMessage("614 Address updated fe80::1/64 wlan0 128 253");
expectSoon(observer).addressUpdated("wlan0", new LinkAddress("fe80::1/64", 128, 253));
// There is no "added", so we take this as "removed".
sendMessage("614 Address added fe80::1/64 wlan0 128 253");
expectSoon(observer).addressRemoved("wlan0", new LinkAddress("fe80::1/64", 128, 253));
sendMessage("614 Address removed 2001:db8::1/64 wlan0 1 0");
expectSoon(observer).addressRemoved("wlan0", new LinkAddress("2001:db8::1/64", 1, 0));
sendMessage("614 Address removed 2001:db8::1/64 wlan0 1");
// Not enough arguments.
sendMessage("666 Address removed 2001:db8::1/64 wlan0 1 0");
// Invalid code.
/**
* DNS information broadcasts.
*/
sendMessage("615 DnsInfo servers rmnet_usb0 3600 2001:db8::1");
expectSoon(observer).interfaceDnsServerInfo("rmnet_usb0", 3600,
new String[]{"2001:db8::1"});
sendMessage("615 DnsInfo servers wlan0 14400 2001:db8::1,2001:db8::2");
expectSoon(observer).interfaceDnsServerInfo("wlan0", 14400,
new String[]{"2001:db8::1", "2001:db8::2"});
// We don't check for negative lifetimes, only for parse errors.
sendMessage("615 DnsInfo servers wlan0 -3600 ::1");
expectSoon(observer).interfaceDnsServerInfo("wlan0", -3600,
new String[]{"::1"});
sendMessage("615 DnsInfo servers wlan0 SIXHUNDRED ::1");
// Non-numeric lifetime.
sendMessage("615 DnsInfo servers wlan0 2001:db8::1");
// Missing lifetime.
sendMessage("615 DnsInfo servers wlan0 3600");
// No servers.
sendMessage("615 DnsInfo servers 3600 wlan0 2001:db8::1,2001:db8::2");
// Non-numeric lifetime.
sendMessage("615 DnsInfo wlan0 7200 2001:db8::1,2001:db8::2");
// Invalid tokens.
sendMessage("666 DnsInfo servers wlan0 5400 2001:db8::1");
// Invalid code.
// No syntax checking on the addresses.
sendMessage("615 DnsInfo servers wlan0 600 ,::,,foo,::1,");
expectSoon(observer).interfaceDnsServerInfo("wlan0", 600,
new String[]{"", "::", "", "foo", "::1"});
// Make sure nothing else was called.
verifyNoMoreInteractions(observer);
}
}
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