NetworkStatsFactoryTest.java revision 2d6c580262ba1c19fc4f20c3566889e332fbdcb6 
1/*
2 * Copyright (C) 2011 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
17package com.android.internal.net;
18
19import static android.net.NetworkStats.SET_ALL;
20import static android.net.NetworkStats.SET_DEFAULT;
21import static android.net.NetworkStats.SET_FOREGROUND;
22import static android.net.NetworkStats.TAG_NONE;
23import static android.net.NetworkStats.UID_ALL;
24import static com.android.server.NetworkManagementSocketTagger.kernelToTag;
25
26import android.content.res.Resources;
27import android.net.NetworkStats;
28import android.net.TrafficStats;
29import android.test.AndroidTestCase;
30
31import com.android.frameworks.coretests.R;
32
33import java.io.File;
34import java.io.FileOutputStream;
35import java.io.FileWriter;
36import java.io.InputStream;
37import java.io.OutputStream;
38
39import libcore.io.IoUtils;
40import libcore.io.Streams;
41
42/**
43 * Tests for {@link NetworkStatsFactory}.
44 */
45public class NetworkStatsFactoryTest extends AndroidTestCase {
46    private File mTestProc;
47    private NetworkStatsFactory mFactory;
48
49    @Override
50    public void setUp() throws Exception {
51        super.setUp();
52
53        mTestProc = new File(getContext().getFilesDir(), "proc");
54        if (mTestProc.exists()) {
55            IoUtils.deleteContents(mTestProc);
56        }
57
58        mFactory = new NetworkStatsFactory(mTestProc);
59    }
60
61    @Override
62    public void tearDown() throws Exception {
63        mFactory = null;
64
65        if (mTestProc.exists()) {
66            IoUtils.deleteContents(mTestProc);
67        }
68
69        super.tearDown();
70    }
71
72    public void testNetworkStatsDetail() throws Exception {
73        stageFile(R.raw.xt_qtaguid_typical, new File(mTestProc, "net/xt_qtaguid/stats"));
74
75        final NetworkStats stats = mFactory.readNetworkStatsDetail();
76        assertEquals(70, stats.size());
77        assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 18621L, 2898L);
78        assertStatsEntry(stats, "wlan0", 10011, SET_DEFAULT, 0x0, 35777L, 5718L);
79        assertStatsEntry(stats, "wlan0", 10021, SET_DEFAULT, 0x7fffff01, 562386L, 49228L);
80        assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 227423L);
81        assertStatsEntry(stats, "rmnet2", 10001, SET_DEFAULT, 0x0, 1125899906842624L, 984L);
82    }
83
84    public void testNetworkStatsSummary() throws Exception {
85        stageFile(R.raw.net_dev_typical, new File(mTestProc, "net/dev"));
86
87        final NetworkStats stats = mFactory.readNetworkStatsSummary();
88        assertEquals(6, stats.size());
89        assertStatsEntry(stats, "lo", UID_ALL, SET_ALL, TAG_NONE, 8308L, 8308L);
90        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 1507570L, 489339L);
91        assertStatsEntry(stats, "ifb0", UID_ALL, SET_ALL, TAG_NONE, 52454L, 0L);
92        assertStatsEntry(stats, "ifb1", UID_ALL, SET_ALL, TAG_NONE, 52454L, 0L);
93        assertStatsEntry(stats, "sit0", UID_ALL, SET_ALL, TAG_NONE, 0L, 0L);
94        assertStatsEntry(stats, "ip6tnl0", UID_ALL, SET_ALL, TAG_NONE, 0L, 0L);
95    }
96
97    public void testNetworkStatsSummaryDown() throws Exception {
98        stageFile(R.raw.net_dev_typical, new File(mTestProc, "net/dev"));
99        stageLong(1L, new File(mTestProc, "net/xt_qtaguid/iface_stat/wlan0/active"));
100        stageLong(1024L, new File(mTestProc, "net/xt_qtaguid/iface_stat/wlan0/rx_bytes"));
101        stageLong(128L, new File(mTestProc, "net/xt_qtaguid/iface_stat/wlan0/rx_packets"));
102        stageLong(2048L, new File(mTestProc, "net/xt_qtaguid/iface_stat/wlan0/tx_bytes"));
103        stageLong(256L, new File(mTestProc, "net/xt_qtaguid/iface_stat/wlan0/tx_packets"));
104
105        final NetworkStats stats = mFactory.readNetworkStatsSummary();
106        assertEquals(7, stats.size());
107        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 1507570L, 489339L);
108        assertStatsEntry(stats, "wlan0", UID_ALL, SET_ALL, TAG_NONE, 1024L, 2048L);
109    }
110
111    public void testNetworkStatsCombined() throws Exception {
112        stageFile(R.raw.net_dev_typical, new File(mTestProc, "net/dev"));
113        stageLong(1L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/active"));
114        stageLong(10L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/rx_bytes"));
115        stageLong(20L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/rx_packets"));
116        stageLong(30L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/tx_bytes"));
117        stageLong(40L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/tx_packets"));
118
119        final NetworkStats stats = mFactory.readNetworkStatsSummary();
120        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 1507570L + 10L,
121                2205L + 20L, 489339L + 30L, 2237L + 40L);
122    }
123
124    public void testNetworkStatsCombinedInactive() throws Exception {
125        stageFile(R.raw.net_dev_typical, new File(mTestProc, "net/dev"));
126        stageLong(0L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/active"));
127        stageLong(10L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/rx_bytes"));
128        stageLong(20L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/rx_packets"));
129        stageLong(30L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/tx_bytes"));
130        stageLong(40L, new File(mTestProc, "net/xt_qtaguid/iface_stat/rmnet0/tx_packets"));
131
132        final NetworkStats stats = mFactory.readNetworkStatsSummary();
133        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 10L, 20L, 30L, 40L);
134    }
135
136    public void testKernelTags() throws Exception {
137        assertEquals(0, kernelToTag("0x0000000000000000"));
138        assertEquals(0x32, kernelToTag("0x0000003200000000"));
139        assertEquals(2147483647, kernelToTag("0x7fffffff00000000"));
140        assertEquals(0, kernelToTag("0x0000000000000000"));
141        assertEquals(2147483136, kernelToTag("0x7FFFFE0000000000"));
142
143        assertEquals(0, kernelToTag("0x0"));
144        assertEquals(0, kernelToTag("0xf00d"));
145        assertEquals(1, kernelToTag("0x100000000"));
146        assertEquals(14438007, kernelToTag("0xdc4e7700000000"));
147        assertEquals(TrafficStats.TAG_SYSTEM_DOWNLOAD, kernelToTag("0xffffff0100000000"));
148    }
149
150    public void testNetworkStatsWithSet() throws Exception {
151        stageFile(R.raw.xt_qtaguid_typical, new File(mTestProc, "net/xt_qtaguid/stats"));
152
153        final NetworkStats stats = mFactory.readNetworkStatsDetail();
154        assertEquals(70, stats.size());
155        assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 578L, 227423L, 676L);
156        assertStatsEntry(stats, "rmnet1", 10021, SET_FOREGROUND, 0x30100000, 742L, 3L, 1265L, 3L);
157    }
158
159    public void testNetworkStatsSingle() throws Exception {
160        stageFile(R.raw.xt_qtaguid_iface_typical, new File(mTestProc, "net/xt_qtaguid/iface_stat_all"));
161
162        final NetworkStats stats = mFactory.readNetworkStatsSummary();
163        assertEquals(6, stats.size());
164        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 2112L, 24L, 700L, 10L);
165        assertStatsEntry(stats, "test1", UID_ALL, SET_ALL, TAG_NONE, 6L, 8L, 10L, 12L);
166        assertStatsEntry(stats, "test2", UID_ALL, SET_ALL, TAG_NONE, 1L, 2L, 3L, 4L);
167    }
168
169    /**
170     * Copy a {@link Resources#openRawResource(int)} into {@link File} for
171     * testing purposes.
172     */
173    private void stageFile(int rawId, File file) throws Exception {
174        new File(file.getParent()).mkdirs();
175        InputStream in = null;
176        OutputStream out = null;
177        try {
178            in = getContext().getResources().openRawResource(rawId);
179            out = new FileOutputStream(file);
180            Streams.copy(in, out);
181        } finally {
182            IoUtils.closeQuietly(in);
183            IoUtils.closeQuietly(out);
184        }
185    }
186
187    private void stageLong(long value, File file) throws Exception {
188        new File(file.getParent()).mkdirs();
189        FileWriter out = null;
190        try {
191            out = new FileWriter(file);
192            out.write(Long.toString(value));
193        } finally {
194            IoUtils.closeQuietly(out);
195        }
196    }
197
198    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
199            int tag, long rxBytes, long txBytes) {
200        final int i = stats.findIndex(iface, uid, set, tag);
201        final NetworkStats.Entry entry = stats.getValues(i, null);
202        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
203        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
204    }
205
206    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
207            int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) {
208        final int i = stats.findIndex(iface, uid, set, tag);
209        final NetworkStats.Entry entry = stats.getValues(i, null);
210        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
211        assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
212        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
213        assertEquals("unexpected txPackets", txPackets, entry.txPackets);
214    }
215
216}
217