Erik Kline | 473355f | 2016-10-19 17:42:01 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.net.util; |
| 18 | |
| 19 | import static android.system.OsConstants.*; |
| 20 | |
| 21 | import android.system.ErrnoException; |
| 22 | import android.system.Os; |
| 23 | import android.system.StructTimeval; |
| 24 | |
| 25 | import libcore.io.IoBridge; |
| 26 | |
| 27 | import java.io.FileDescriptor; |
| 28 | import java.io.FileInputStream; |
| 29 | import java.io.IOException; |
| 30 | import java.net.DatagramPacket; |
| 31 | import java.net.DatagramSocket; |
| 32 | import java.net.Inet6Address; |
| 33 | import java.net.InetAddress; |
| 34 | import java.net.InetSocketAddress; |
| 35 | import java.net.SocketException; |
| 36 | import java.util.Arrays; |
| 37 | import java.util.concurrent.CountDownLatch; |
| 38 | import java.util.concurrent.TimeUnit; |
| 39 | |
| 40 | import junit.framework.TestCase; |
| 41 | |
| 42 | |
| 43 | /** |
| 44 | * Tests for BlockingSocketReader. |
| 45 | * |
| 46 | * @hide |
| 47 | */ |
| 48 | public class BlockingSocketReaderTest extends TestCase { |
| 49 | static final InetAddress LOOPBACK6 = Inet6Address.getLoopbackAddress(); |
| 50 | static final StructTimeval TIMEO = StructTimeval.fromMillis(500); |
| 51 | |
| 52 | protected CountDownLatch mLatch; |
| 53 | protected FileDescriptor mLocalSocket; |
| 54 | protected InetSocketAddress mLocalSockName; |
| 55 | protected byte[] mLastRecvBuf; |
| 56 | protected boolean mExited; |
| 57 | protected BlockingSocketReader mReceiver; |
| 58 | |
| 59 | @Override |
| 60 | public void setUp() { |
| 61 | resetLatch(); |
| 62 | mLocalSocket = null; |
| 63 | mLocalSockName = null; |
| 64 | mLastRecvBuf = null; |
| 65 | mExited = false; |
| 66 | |
| 67 | mReceiver = new BlockingSocketReader() { |
| 68 | @Override |
| 69 | protected FileDescriptor createSocket() { |
| 70 | FileDescriptor s = null; |
| 71 | try { |
| 72 | s = Os.socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP); |
| 73 | Os.bind(s, LOOPBACK6, 0); |
| 74 | mLocalSockName = (InetSocketAddress) Os.getsockname(s); |
| 75 | Os.setsockoptTimeval(s, SOL_SOCKET, SO_SNDTIMEO, TIMEO); |
| 76 | } catch (ErrnoException|SocketException e) { |
| 77 | closeSocket(s); |
| 78 | fail(); |
| 79 | return null; |
| 80 | } |
| 81 | |
| 82 | mLocalSocket = s; |
| 83 | return s; |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | protected void handlePacket(byte[] recvbuf, int length) { |
| 88 | mLastRecvBuf = Arrays.copyOf(recvbuf, length); |
| 89 | mLatch.countDown(); |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | protected void onExit() { |
| 94 | mExited = true; |
| 95 | mLatch.countDown(); |
| 96 | } |
| 97 | }; |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | public void tearDown() { |
| 102 | if (mReceiver != null) mReceiver.stop(); |
| 103 | mReceiver = null; |
| 104 | } |
| 105 | |
| 106 | void resetLatch() { mLatch = new CountDownLatch(1); } |
| 107 | |
| 108 | void waitForActivity() throws Exception { |
| 109 | assertTrue(mLatch.await(500, TimeUnit.MILLISECONDS)); |
| 110 | resetLatch(); |
| 111 | } |
| 112 | |
| 113 | void sendPacket(byte[] contents) throws Exception { |
| 114 | final DatagramSocket sender = new DatagramSocket(); |
| 115 | sender.connect(mLocalSockName); |
| 116 | sender.send(new DatagramPacket(contents, contents.length)); |
| 117 | sender.close(); |
| 118 | } |
| 119 | |
| 120 | public void testBasicWorking() throws Exception { |
| 121 | assertTrue(mReceiver.start()); |
| 122 | assertTrue(mLocalSockName != null); |
| 123 | assertEquals(LOOPBACK6, mLocalSockName.getAddress()); |
| 124 | assertTrue(0 < mLocalSockName.getPort()); |
| 125 | assertTrue(mLocalSocket != null); |
| 126 | assertFalse(mExited); |
| 127 | |
| 128 | final byte[] one = "one 1".getBytes("UTF-8"); |
| 129 | sendPacket(one); |
| 130 | waitForActivity(); |
| 131 | assertEquals(1, mReceiver.numPacketsReceived()); |
| 132 | assertTrue(Arrays.equals(one, mLastRecvBuf)); |
| 133 | assertFalse(mExited); |
| 134 | |
| 135 | final byte[] two = "two 2".getBytes("UTF-8"); |
| 136 | sendPacket(two); |
| 137 | waitForActivity(); |
| 138 | assertEquals(2, mReceiver.numPacketsReceived()); |
| 139 | assertTrue(Arrays.equals(two, mLastRecvBuf)); |
| 140 | assertFalse(mExited); |
| 141 | |
| 142 | mReceiver.stop(); |
| 143 | waitForActivity(); |
| 144 | assertEquals(2, mReceiver.numPacketsReceived()); |
| 145 | assertTrue(Arrays.equals(two, mLastRecvBuf)); |
| 146 | assertTrue(mExited); |
| 147 | } |
| 148 | } |