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 testKernelTags() throws Exception {
85        assertEquals(0, kernelToTag("0x0000000000000000"));
86        assertEquals(0x32, kernelToTag("0x0000003200000000"));
87        assertEquals(2147483647, kernelToTag("0x7fffffff00000000"));
88        assertEquals(0, kernelToTag("0x0000000000000000"));
89        assertEquals(2147483136, kernelToTag("0x7FFFFE0000000000"));
90
91        assertEquals(0, kernelToTag("0x0"));
92        assertEquals(0, kernelToTag("0xf00d"));
93        assertEquals(1, kernelToTag("0x100000000"));
94        assertEquals(14438007, kernelToTag("0xdc4e7700000000"));
95        assertEquals(TrafficStats.TAG_SYSTEM_DOWNLOAD, kernelToTag("0xffffff0100000000"));
96    }
97
98    public void testNetworkStatsWithSet() throws Exception {
99        stageFile(R.raw.xt_qtaguid_typical, new File(mTestProc, "net/xt_qtaguid/stats"));
100
101        final NetworkStats stats = mFactory.readNetworkStatsDetail();
102        assertEquals(70, stats.size());
103        assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 578L, 227423L, 676L);
104        assertStatsEntry(stats, "rmnet1", 10021, SET_FOREGROUND, 0x30100000, 742L, 3L, 1265L, 3L);
105    }
106
107    public void testNetworkStatsSingle() throws Exception {
108        stageFile(R.raw.xt_qtaguid_iface_typical, new File(mTestProc, "net/xt_qtaguid/iface_stat_all"));
109
110        final NetworkStats stats = mFactory.readNetworkStatsSummaryDev();
111        assertEquals(6, stats.size());
112        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 2112L, 24L, 700L, 10L);
113        assertStatsEntry(stats, "test1", UID_ALL, SET_ALL, TAG_NONE, 6L, 8L, 10L, 12L);
114        assertStatsEntry(stats, "test2", UID_ALL, SET_ALL, TAG_NONE, 1L, 2L, 3L, 4L);
115    }
116
117    public void testNetworkStatsXt() throws Exception {
118        stageFile(R.raw.xt_qtaguid_iface_fmt_typical,
119                new File(mTestProc, "net/xt_qtaguid/iface_stat_fmt"));
120
121        final NetworkStats stats = mFactory.readNetworkStatsSummaryXt();
122        assertEquals(3, stats.size());
123        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 6824L, 16L, 5692L, 10L);
124        assertStatsEntry(stats, "rmnet1", UID_ALL, SET_ALL, TAG_NONE, 11153922L, 8051L, 190226L, 2468L);
125        assertStatsEntry(stats, "rmnet2", UID_ALL, SET_ALL, TAG_NONE, 4968L, 35L, 3081L, 39L);
126    }
127
128    /**
129     * Copy a {@link Resources#openRawResource(int)} into {@link File} for
130     * testing purposes.
131     */
132    private void stageFile(int rawId, File file) throws Exception {
133        new File(file.getParent()).mkdirs();
134        InputStream in = null;
135        OutputStream out = null;
136        try {
137            in = getContext().getResources().openRawResource(rawId);
138            out = new FileOutputStream(file);
139            Streams.copy(in, out);
140        } finally {
141            IoUtils.closeQuietly(in);
142            IoUtils.closeQuietly(out);
143        }
144    }
145
146    private void stageLong(long value, File file) throws Exception {
147        new File(file.getParent()).mkdirs();
148        FileWriter out = null;
149        try {
150            out = new FileWriter(file);
151            out.write(Long.toString(value));
152        } finally {
153            IoUtils.closeQuietly(out);
154        }
155    }
156
157    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
158            int tag, long rxBytes, long txBytes) {
159        final int i = stats.findIndex(iface, uid, set, tag);
160        final NetworkStats.Entry entry = stats.getValues(i, null);
161        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
162        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
163    }
164
165    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
166            int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) {
167        final int i = stats.findIndex(iface, uid, set, tag);
168        final NetworkStats.Entry entry = stats.getValues(i, null);
169        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
170        assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
171        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
172        assertEquals("unexpected txPackets", txPackets, entry.txPackets);
173    }
174
175}
176