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.ROAMING_NO;
20import static android.net.NetworkStats.SET_ALL;
21import static android.net.NetworkStats.SET_DEFAULT;
22import static android.net.NetworkStats.SET_FOREGROUND;
23import static android.net.NetworkStats.TAG_NONE;
24import static android.net.NetworkStats.UID_ALL;
25import static com.android.server.NetworkManagementSocketTagger.kernelToTag;
26
27import android.content.res.Resources;
28import android.net.NetworkStats;
29import android.net.TrafficStats;
30import android.test.AndroidTestCase;
31
32import com.android.frameworks.coretests.R;
33
34import java.io.File;
35import java.io.FileOutputStream;
36import java.io.FileWriter;
37import java.io.InputStream;
38import java.io.OutputStream;
39
40import libcore.io.IoUtils;
41import libcore.io.Streams;
42
43/**
44 * Tests for {@link NetworkStatsFactory}.
45 */
46public class NetworkStatsFactoryTest extends AndroidTestCase {
47    private File mTestProc;
48    private NetworkStatsFactory mFactory;
49
50    @Override
51    public void setUp() throws Exception {
52        super.setUp();
53
54        mTestProc = new File(getContext().getFilesDir(), "proc");
55        if (mTestProc.exists()) {
56            IoUtils.deleteContents(mTestProc);
57        }
58
59        mFactory = new NetworkStatsFactory(mTestProc);
60    }
61
62    @Override
63    public void tearDown() throws Exception {
64        mFactory = null;
65
66        if (mTestProc.exists()) {
67            IoUtils.deleteContents(mTestProc);
68        }
69
70        super.tearDown();
71    }
72
73    public void testNetworkStatsDetail() throws Exception {
74        stageFile(R.raw.xt_qtaguid_typical, new File(mTestProc, "net/xt_qtaguid/stats"));
75
76        final NetworkStats stats = mFactory.readNetworkStatsDetail();
77        assertEquals(70, stats.size());
78        assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 18621L, 2898L);
79        assertStatsEntry(stats, "wlan0", 10011, SET_DEFAULT, 0x0, 35777L, 5718L);
80        assertStatsEntry(stats, "wlan0", 10021, SET_DEFAULT, 0x7fffff01, 562386L, 49228L);
81        assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 227423L);
82        assertStatsEntry(stats, "rmnet2", 10001, SET_DEFAULT, 0x0, 1125899906842624L, 984L);
83    }
84
85    public void testKernelTags() throws Exception {
86        assertEquals(0, kernelToTag("0x0000000000000000"));
87        assertEquals(0x32, kernelToTag("0x0000003200000000"));
88        assertEquals(2147483647, kernelToTag("0x7fffffff00000000"));
89        assertEquals(0, kernelToTag("0x0000000000000000"));
90        assertEquals(2147483136, kernelToTag("0x7FFFFE0000000000"));
91
92        assertEquals(0, kernelToTag("0x0"));
93        assertEquals(0, kernelToTag("0xf00d"));
94        assertEquals(1, kernelToTag("0x100000000"));
95        assertEquals(14438007, kernelToTag("0xdc4e7700000000"));
96        assertEquals(TrafficStats.TAG_SYSTEM_DOWNLOAD, kernelToTag("0xffffff0100000000"));
97    }
98
99    public void testNetworkStatsWithSet() throws Exception {
100        stageFile(R.raw.xt_qtaguid_typical, new File(mTestProc, "net/xt_qtaguid/stats"));
101
102        final NetworkStats stats = mFactory.readNetworkStatsDetail();
103        assertEquals(70, stats.size());
104        assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 578L, 227423L, 676L);
105        assertStatsEntry(stats, "rmnet1", 10021, SET_FOREGROUND, 0x30100000, 742L, 3L, 1265L, 3L);
106    }
107
108    public void testNetworkStatsSingle() throws Exception {
109        stageFile(R.raw.xt_qtaguid_iface_typical, new File(mTestProc, "net/xt_qtaguid/iface_stat_all"));
110
111        final NetworkStats stats = mFactory.readNetworkStatsSummaryDev();
112        assertEquals(6, stats.size());
113        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 2112L, 24L, 700L, 10L);
114        assertStatsEntry(stats, "test1", UID_ALL, SET_ALL, TAG_NONE, 6L, 8L, 10L, 12L);
115        assertStatsEntry(stats, "test2", UID_ALL, SET_ALL, TAG_NONE, 1L, 2L, 3L, 4L);
116    }
117
118    public void testNetworkStatsXt() throws Exception {
119        stageFile(R.raw.xt_qtaguid_iface_fmt_typical,
120                new File(mTestProc, "net/xt_qtaguid/iface_stat_fmt"));
121
122        final NetworkStats stats = mFactory.readNetworkStatsSummaryXt();
123        assertEquals(3, stats.size());
124        assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 6824L, 16L, 5692L, 10L);
125        assertStatsEntry(stats, "rmnet1", UID_ALL, SET_ALL, TAG_NONE, 11153922L, 8051L, 190226L, 2468L);
126        assertStatsEntry(stats, "rmnet2", UID_ALL, SET_ALL, TAG_NONE, 4968L, 35L, 3081L, 39L);
127    }
128
129    /**
130     * Copy a {@link Resources#openRawResource(int)} into {@link File} for
131     * testing purposes.
132     */
133    private void stageFile(int rawId, File file) throws Exception {
134        new File(file.getParent()).mkdirs();
135        InputStream in = null;
136        OutputStream out = null;
137        try {
138            in = getContext().getResources().openRawResource(rawId);
139            out = new FileOutputStream(file);
140            Streams.copy(in, out);
141        } finally {
142            IoUtils.closeQuietly(in);
143            IoUtils.closeQuietly(out);
144        }
145    }
146
147    private void stageLong(long value, File file) throws Exception {
148        new File(file.getParent()).mkdirs();
149        FileWriter out = null;
150        try {
151            out = new FileWriter(file);
152            out.write(Long.toString(value));
153        } finally {
154            IoUtils.closeQuietly(out);
155        }
156    }
157
158    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
159            int tag, long rxBytes, long txBytes) {
160        final int i = stats.findIndex(iface, uid, set, tag, ROAMING_NO);
161        final NetworkStats.Entry entry = stats.getValues(i, null);
162        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
163        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
164    }
165
166    private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
167            int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) {
168        final int i = stats.findIndex(iface, uid, set, tag, ROAMING_NO);
169        final NetworkStats.Entry entry = stats.getValues(i, null);
170        assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
171        assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
172        assertEquals("unexpected txBytes", txBytes, entry.txBytes);
173        assertEquals("unexpected txPackets", txPackets, entry.txPackets);
174    }
175
176}
177