/* * 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 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); sendMessage("613 IfaceClass idle eth0"); expectSoon(observer).interfaceClassDataActivityChanged("eth0", false); sendMessage("613 IfaceClass reallyactive rmnet0"); expectSoon(observer).interfaceClassDataActivityChanged("rmnet0", false); 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); } }