NetworkStatsTest.java revision 98170b0db191f916bf2a0f104f5d5057c2aaeaa9 
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 android.net;
18
19import static android.net.NetworkStats.SET_DEFAULT;
20import static android.net.NetworkStats.SET_FOREGROUND;
21import static android.net.NetworkStats.SET_DBG_VPN_IN;
22import static android.net.NetworkStats.SET_DBG_VPN_OUT;
23import static android.net.NetworkStats.SET_ALL;
24import static android.net.NetworkStats.IFACE_ALL;
25import static android.net.NetworkStats.TAG_NONE;
26import static android.net.NetworkStats.UID_ALL;
27
28import android.test.suitebuilder.annotation.SmallTest;
29
30import com.google.android.collect.Sets;
31
32import junit.framework.TestCase;
33
34import java.util.HashSet;
35
36@SmallTest
37public class NetworkStatsTest extends TestCase {
38
39    private static final String TEST_IFACE = "test0";
40    private static final String TEST_IFACE2 = "test2";
41    private static final int TEST_UID = 1001;
42    private static final long TEST_START = 1194220800000L;
43
44    public void testFindIndex() throws Exception {
45        final NetworkStats stats = new NetworkStats(TEST_START, 3)
46                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 10)
47                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 11)
48                .addValues(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE, 1024L, 8L, 1024L, 8L, 12);
49
50        assertEquals(2, stats.findIndex(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE));
51        assertEquals(2, stats.findIndex(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE));
52        assertEquals(0, stats.findIndex(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE));
53        assertEquals(-1, stats.findIndex(TEST_IFACE, 6, SET_DEFAULT, TAG_NONE));
54    }
55
56    public void testFindIndexHinted() {
57        final NetworkStats stats = new NetworkStats(TEST_START, 3)
58                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 10)
59                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 11)
60                .addValues(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE, 1024L, 8L, 1024L, 8L, 12)
61                .addValues(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, 1024L, 8L, 0L, 0L, 10)
62                .addValues(TEST_IFACE2, 101, SET_DEFAULT, 0xF00D, 0L, 0L, 1024L, 8L, 11)
63                .addValues(TEST_IFACE2, 102, SET_DEFAULT, TAG_NONE, 1024L, 8L, 1024L, 8L, 12);
64
65        // verify that we correctly find across regardless of hinting
66        for (int hint = 0; hint < stats.size(); hint++) {
67            assertEquals(0, stats.findIndexHinted(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, hint));
68            assertEquals(1, stats.findIndexHinted(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, hint));
69            assertEquals(2, stats.findIndexHinted(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE, hint));
70            assertEquals(3, stats.findIndexHinted(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, hint));
71            assertEquals(4, stats.findIndexHinted(TEST_IFACE2, 101, SET_DEFAULT, 0xF00D, hint));
72            assertEquals(5, stats.findIndexHinted(TEST_IFACE2, 102, SET_DEFAULT, TAG_NONE, hint));
73            assertEquals(-1, stats.findIndexHinted(TEST_IFACE, 6, SET_DEFAULT, TAG_NONE, hint));
74        }
75    }
76
77    public void testAddEntryGrow() throws Exception {
78        final NetworkStats stats = new NetworkStats(TEST_START, 2);
79
80        assertEquals(0, stats.size());
81        assertEquals(2, stats.internalSize());
82
83        stats.addValues(TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 1L, 1L, 2L, 2L, 3);
84        stats.addValues(TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 2L, 2L, 2L, 2L, 4);
85
86        assertEquals(2, stats.size());
87        assertEquals(2, stats.internalSize());
88
89        stats.addValues(TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 3L, 30L, 4L, 40L, 7);
90        stats.addValues(TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 4L, 40L, 4L, 40L, 8);
91        stats.addValues(TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 5L, 50L, 5L, 50L, 10);
92
93        assertEquals(5, stats.size());
94        assertTrue(stats.internalSize() >= 5);
95
96        assertValues(stats, 0, TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 1L, 1L, 2L, 2L, 3);
97        assertValues(stats, 1, TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 2L, 2L, 2L, 2L, 4);
98        assertValues(stats, 2, TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 3L, 30L, 4L, 40L, 7);
99        assertValues(stats, 3, TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 4L, 40L, 4L, 40L, 8);
100        assertValues(stats, 4, TEST_IFACE, TEST_UID, SET_DEFAULT, TAG_NONE, 5L, 50L, 5L, 50L, 10);
101    }
102
103    public void testCombineExisting() throws Exception {
104        final NetworkStats stats = new NetworkStats(TEST_START, 10);
105
106        stats.addValues(TEST_IFACE, 1001, SET_DEFAULT, TAG_NONE, 512L, 4L, 256L, 2L, 10);
107        stats.addValues(TEST_IFACE, 1001, SET_DEFAULT, 0xff, 128L, 1L, 128L, 1L, 2);
108        stats.combineValues(TEST_IFACE, 1001, SET_DEFAULT, TAG_NONE, -128L, -1L, -128L, -1L, -1);
109
110        assertValues(stats, 0, TEST_IFACE, 1001, SET_DEFAULT, TAG_NONE, 384L, 3L, 128L, 1L, 9);
111        assertValues(stats, 1, TEST_IFACE, 1001, SET_DEFAULT, 0xff, 128L, 1L, 128L, 1L, 2);
112
113        // now try combining that should create row
114        stats.combineValues(TEST_IFACE, 5005, SET_DEFAULT, TAG_NONE, 128L, 1L, 128L, 1L, 3);
115        assertValues(stats, 2, TEST_IFACE, 5005, SET_DEFAULT, TAG_NONE, 128L, 1L, 128L, 1L, 3);
116        stats.combineValues(TEST_IFACE, 5005, SET_DEFAULT, TAG_NONE, 128L, 1L, 128L, 1L, 3);
117        assertValues(stats, 2, TEST_IFACE, 5005, SET_DEFAULT, TAG_NONE, 256L, 2L, 256L, 2L, 6);
118    }
119
120    public void testSubtractIdenticalData() throws Exception {
121        final NetworkStats before = new NetworkStats(TEST_START, 2)
122                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 11)
123                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 12);
124
125        final NetworkStats after = new NetworkStats(TEST_START, 2)
126                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 11)
127                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 12);
128
129        final NetworkStats result = after.subtract(before);
130
131        // identical data should result in zero delta
132        assertValues(result, 0, TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0);
133        assertValues(result, 1, TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0);
134    }
135
136    public void testSubtractIdenticalRows() throws Exception {
137        final NetworkStats before = new NetworkStats(TEST_START, 2)
138                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 11)
139                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 12);
140
141        final NetworkStats after = new NetworkStats(TEST_START, 2)
142                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1025L, 9L, 2L, 1L, 15)
143                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 3L, 1L, 1028L, 9L, 20);
144
145        final NetworkStats result = after.subtract(before);
146
147        // expect delta between measurements
148        assertValues(result, 0, TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1L, 1L, 2L, 1L, 4);
149        assertValues(result, 1, TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 3L, 1L, 4L, 1L, 8);
150    }
151
152    public void testSubtractNewRows() throws Exception {
153        final NetworkStats before = new NetworkStats(TEST_START, 2)
154                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 11)
155                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 12);
156
157        final NetworkStats after = new NetworkStats(TEST_START, 3)
158                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 1024L, 8L, 0L, 0L, 11)
159                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 1024L, 8L, 12)
160                .addValues(TEST_IFACE, 102, SET_DEFAULT, TAG_NONE, 1024L, 8L, 1024L, 8L, 20);
161
162        final NetworkStats result = after.subtract(before);
163
164        // its okay to have new rows
165        assertValues(result, 0, TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0);
166        assertValues(result, 1, TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 0L, 0L, 0L, 0L, 0);
167        assertValues(result, 2, TEST_IFACE, 102, SET_DEFAULT, TAG_NONE, 1024L, 8L, 1024L, 8L, 20);
168    }
169
170    public void testSubtractMissingRows() throws Exception {
171        final NetworkStats before = new NetworkStats(TEST_START, 2)
172                .addValues(TEST_IFACE, UID_ALL, SET_DEFAULT, TAG_NONE, 1024L, 0L, 0L, 0L, 0)
173                .addValues(TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 2048L, 0L, 0L, 0L, 0);
174
175        final NetworkStats after = new NetworkStats(TEST_START, 1)
176                .addValues(TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 2049L, 2L, 3L, 4L, 0);
177
178        final NetworkStats result = after.subtract(before);
179
180        // should silently drop omitted rows
181        assertEquals(1, result.size());
182        assertValues(result, 0, TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 1L, 2L, 3L, 4L, 0);
183        assertEquals(4L, result.getTotalBytes());
184    }
185
186    public void testTotalBytes() throws Exception {
187        final NetworkStats iface = new NetworkStats(TEST_START, 2)
188                .addValues(TEST_IFACE, UID_ALL, SET_DEFAULT, TAG_NONE, 128L, 0L, 0L, 0L, 0L)
189                .addValues(TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 256L, 0L, 0L, 0L, 0L);
190        assertEquals(384L, iface.getTotalBytes());
191
192        final NetworkStats uidSet = new NetworkStats(TEST_START, 3)
193                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L)
194                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L)
195                .addValues(TEST_IFACE, 101, SET_FOREGROUND, TAG_NONE, 32L, 0L, 0L, 0L, 0L);
196        assertEquals(96L, uidSet.getTotalBytes());
197
198        final NetworkStats uidTag = new NetworkStats(TEST_START, 3)
199                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 16L, 0L, 0L, 0L, 0L)
200                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 16L, 0L, 0L, 0L, 0L)
201                .addValues(TEST_IFACE2, 100, SET_DEFAULT, 0xF00D, 8L, 0L, 0L, 0L, 0L)
202                .addValues(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, 16L, 0L, 0L, 0L, 0L)
203                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 16L, 0L, 0L, 0L, 0L)
204                .addValues(TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 8L, 0L, 0L, 0L, 0L);
205        assertEquals(64L, uidTag.getTotalBytes());
206    }
207
208    public void testGroupedByIfaceEmpty() throws Exception {
209        final NetworkStats uidStats = new NetworkStats(TEST_START, 3);
210        final NetworkStats grouped = uidStats.groupedByIface();
211
212        assertEquals(0, uidStats.size());
213        assertEquals(0, grouped.size());
214    }
215
216    public void testGroupedByIfaceAll() throws Exception {
217        final NetworkStats uidStats = new NetworkStats(TEST_START, 3)
218                .addValues(IFACE_ALL, 100, SET_ALL, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
219                .addValues(IFACE_ALL, 101, SET_FOREGROUND, TAG_NONE, 128L, 8L, 0L, 2L, 20L);
220        final NetworkStats grouped = uidStats.groupedByIface();
221
222        assertEquals(2, uidStats.size());
223        assertEquals(1, grouped.size());
224
225        assertValues(grouped, 0, IFACE_ALL, UID_ALL, SET_ALL, TAG_NONE, 256L, 16L, 0L, 4L, 0L);
226    }
227
228    public void testGroupedByIface() throws Exception {
229        final NetworkStats uidStats = new NetworkStats(TEST_START, 3)
230                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
231                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
232                .addValues(TEST_IFACE2, 100, SET_DEFAULT, 0xF00D, 64L, 4L, 0L, 0L, 0L)
233                .addValues(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
234                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L)
235                .addValues(TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 128L, 8L, 0L, 0L, 0L);
236
237        final NetworkStats grouped = uidStats.groupedByIface();
238
239        assertEquals(6, uidStats.size());
240
241        assertEquals(2, grouped.size());
242        assertValues(grouped, 0, TEST_IFACE, UID_ALL, SET_ALL, TAG_NONE, 256L, 16L, 0L, 2L, 0L);
243        assertValues(grouped, 1, TEST_IFACE2, UID_ALL, SET_ALL, TAG_NONE, 1024L, 64L, 0L, 0L, 0L);
244    }
245
246    public void testAddAllValues() {
247        final NetworkStats first = new NetworkStats(TEST_START, 5)
248                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L)
249                .addValues(TEST_IFACE, 100, SET_FOREGROUND, TAG_NONE, 32L, 0L, 0L, 0L, 0L);
250
251        final NetworkStats second = new NetworkStats(TEST_START, 2)
252                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L)
253                .addValues(TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L);
254
255        first.combineAllValues(second);
256
257        assertEquals(3, first.size());
258        assertValues(first, 0, TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 64L, 0L, 0L, 0L, 0L);
259        assertValues(first, 1, TEST_IFACE, 100, SET_FOREGROUND, TAG_NONE, 32L, 0L, 0L, 0L, 0L);
260        assertValues(first, 2, TEST_IFACE2, UID_ALL, SET_DEFAULT, TAG_NONE, 32L, 0L, 0L, 0L, 0L);
261    }
262
263    public void testGetTotal() {
264        final NetworkStats stats = new NetworkStats(TEST_START, 3)
265                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
266                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
267                .addValues(TEST_IFACE2, 100, SET_DEFAULT, 0xF00D, 64L, 4L, 0L, 0L, 0L)
268                .addValues(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
269                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L)
270                .addValues(TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 128L, 8L, 0L, 0L, 0L);
271
272        assertValues(stats.getTotal(null), 1280L, 80L, 0L, 2L, 20L);
273        assertValues(stats.getTotal(null, 100), 1152L, 72L, 0L, 2L, 20L);
274        assertValues(stats.getTotal(null, 101), 128L, 8L, 0L, 0L, 0L);
275
276        final HashSet<String> ifaces = Sets.newHashSet();
277        assertValues(stats.getTotal(null, ifaces), 0L, 0L, 0L, 0L, 0L);
278
279        ifaces.add(TEST_IFACE2);
280        assertValues(stats.getTotal(null, ifaces), 1024L, 64L, 0L, 0L, 0L);
281    }
282
283    public void testWithoutUid() throws Exception {
284        final NetworkStats before = new NetworkStats(TEST_START, 3)
285                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
286                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
287                .addValues(TEST_IFACE2, 100, SET_DEFAULT, 0xF00D, 64L, 4L, 0L, 0L, 0L)
288                .addValues(TEST_IFACE2, 100, SET_FOREGROUND, TAG_NONE, 512L, 32L, 0L, 0L, 0L)
289                .addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L)
290                .addValues(TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 128L, 8L, 0L, 0L, 0L);
291
292        final NetworkStats after = before.withoutUids(new int[] { 100 });
293        assertEquals(6, before.size());
294        assertEquals(2, after.size());
295        assertValues(after, 0, TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L);
296        assertValues(after, 1, TEST_IFACE, 101, SET_DEFAULT, 0xF00D, 128L, 8L, 0L, 0L, 0L);
297    }
298
299    public void testClone() throws Exception {
300        final NetworkStats original = new NetworkStats(TEST_START, 5)
301                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
302                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L);
303
304        // make clone and mutate original
305        final NetworkStats clone = original.clone();
306        original.addValues(TEST_IFACE, 101, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 0L, 0L);
307
308        assertEquals(3, original.size());
309        assertEquals(2, clone.size());
310
311        assertEquals(128L + 512L + 128L, original.getTotalBytes());
312        assertEquals(128L + 512L, clone.getTotalBytes());
313    }
314
315    public void testAddWhenEmpty() throws Exception {
316        final NetworkStats red = new NetworkStats(TEST_START, -1);
317        final NetworkStats blue = new NetworkStats(TEST_START, 5)
318                .addValues(TEST_IFACE, 100, SET_DEFAULT, TAG_NONE, 128L, 8L, 0L, 2L, 20L)
319                .addValues(TEST_IFACE2, 100, SET_DEFAULT, TAG_NONE, 512L, 32L, 0L, 0L, 0L);
320
321        // We're mostly checking that we don't crash
322        red.combineAllValues(blue);
323    }
324
325    public void testMigrateTun() throws Exception {
326        final int tunUid = 10030;
327        final String tunIface = "tun0";
328        final String underlyingIface = "wlan0";
329        final int testTag1 = 8888;
330        NetworkStats delta = new NetworkStats(TEST_START, 17)
331            .addValues(tunIface, 10100, SET_DEFAULT, TAG_NONE, 39605L, 46L, 12259L, 55L, 0L)
332            .addValues(tunIface, 10100, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L)
333            .addValues(tunIface, 10120, SET_DEFAULT, TAG_NONE, 72667L, 197L, 43909L, 241L, 0L)
334            .addValues(tunIface, 10120, SET_FOREGROUND, TAG_NONE, 9297L, 17L, 4128L, 21L, 0L)
335            // VPN package also uses some traffic through unprotected network.
336            .addValues(tunIface, tunUid, SET_DEFAULT, TAG_NONE, 4983L, 10L, 1801L, 12L, 0L)
337            .addValues(tunIface, tunUid, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L)
338            // Tag entries
339            .addValues(tunIface, 10120, SET_DEFAULT, testTag1, 21691L, 41L, 13820L, 51L, 0L)
340            .addValues(tunIface, 10120, SET_FOREGROUND, testTag1, 1281L, 2L, 665L, 2L, 0L)
341            // Irrelevant entries
342            .addValues(TEST_IFACE, 10100, SET_DEFAULT, TAG_NONE, 1685L, 5L, 2070L, 6L, 0L)
343            // Underlying Iface entries
344            .addValues(underlyingIface, 10100, SET_DEFAULT, TAG_NONE, 5178L, 8L, 2139L, 11L, 0L)
345            .addValues(underlyingIface, 10100, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L)
346            .addValues(underlyingIface, tunUid, SET_DEFAULT, TAG_NONE, 149873L, 287L,
347                    59217L /* smaller than sum(tun0) */, 299L /* smaller than sum(tun0) */, 0L)
348            .addValues(underlyingIface, tunUid, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
349
350        assertTrue(delta.migrateTun(tunUid, tunIface, underlyingIface));
351        assertEquals(21, delta.size());
352
353        // tunIface and TEST_IFACE entries are not changed.
354        assertValues(delta, 0, tunIface, 10100, SET_DEFAULT, TAG_NONE,
355                39605L, 46L, 12259L, 55L, 0L);
356        assertValues(delta, 1, tunIface, 10100, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
357        assertValues(delta, 2, tunIface, 10120, SET_DEFAULT, TAG_NONE,
358                72667L, 197L, 43909L, 241L, 0L);
359        assertValues(delta, 3, tunIface, 10120, SET_FOREGROUND, TAG_NONE,
360                9297L, 17L, 4128L, 21L, 0L);
361        assertValues(delta, 4, tunIface, tunUid, SET_DEFAULT, TAG_NONE,
362                4983L, 10L, 1801L, 12L, 0L);
363        assertValues(delta, 5, tunIface, tunUid, SET_FOREGROUND, TAG_NONE, 0L, 0L, 0L, 0L, 0L);
364        assertValues(delta, 6, tunIface, 10120, SET_DEFAULT, testTag1,
365                21691L, 41L, 13820L, 51L, 0L);
366        assertValues(delta, 7, tunIface, 10120, SET_FOREGROUND, testTag1, 1281L, 2L, 665L, 2L, 0L);
367        assertValues(delta, 8, TEST_IFACE, 10100, SET_DEFAULT, TAG_NONE, 1685L, 5L, 2070L, 6L, 0L);
368
369        // Existing underlying Iface entries are updated
370        assertValues(delta, 9, underlyingIface, 10100, SET_DEFAULT, TAG_NONE,
371                44783L, 54L, 13829L, 60L, 0L);
372        assertValues(delta, 10, underlyingIface, 10100, SET_FOREGROUND, TAG_NONE,
373                0L, 0L, 0L, 0L, 0L);
374
375        // VPN underlying Iface entries are updated
376        assertValues(delta, 11, underlyingIface, tunUid, SET_DEFAULT, TAG_NONE,
377                28304L, 27L, 1719L, 12L, 0L);
378        assertValues(delta, 12, underlyingIface, tunUid, SET_FOREGROUND, TAG_NONE,
379                0L, 0L, 0L, 0L, 0L);
380
381        // New entries are added for new application's underlying Iface traffic
382        assertContains(delta, underlyingIface, 10120, SET_DEFAULT, TAG_NONE,
383                72667L, 197L, 41872l, 219L, 0L);
384        assertContains(delta, underlyingIface, 10120, SET_FOREGROUND, TAG_NONE,
385                9297L, 17L, 3936, 19L, 0L);
386        assertContains(delta, underlyingIface, 10120, SET_DEFAULT, testTag1,
387                21691L, 41L, 13179L, 46L, 0L);
388        assertContains(delta, underlyingIface, 10120, SET_FOREGROUND, testTag1,
389                1281L, 2L, 634L, 1L, 0L);
390
391        // New entries are added for debug purpose
392        assertContains(delta, underlyingIface, 10100, SET_DBG_VPN_IN, TAG_NONE,
393                39605L, 46L, 11690, 49, 0);
394        assertContains(delta, underlyingIface, 10120, SET_DBG_VPN_IN, TAG_NONE,
395                81964, 214, 45808, 238, 0);
396        assertContains(delta, underlyingIface, tunUid, SET_DBG_VPN_IN, TAG_NONE,
397                4983, 10, 1717, 10, 0);
398        assertContains(delta, underlyingIface, tunUid, SET_DBG_VPN_OUT, TAG_NONE,
399                126552, 270, 59215, 297, 0);
400
401    }
402
403    private static void assertContains(NetworkStats stats,  String iface, int uid, int set,
404            int tag, long rxBytes, long rxPackets, long txBytes, long txPackets, long operations) {
405        int index = stats.findIndex(iface, uid, set, tag);
406        assertTrue(index != -1);
407        assertValues(stats, index, iface, uid, set, tag,
408                rxBytes, rxPackets, txBytes, txPackets, operations);
409    }
410
411    private static void assertValues(NetworkStats stats, int index, String iface, int uid, int set,
412            int tag, long rxBytes, long rxPackets, long txBytes, long txPackets, long operations) {
413        final NetworkStats.Entry entry = stats.getValues(index, null);
414        assertValues(entry, iface, uid, set, tag);
415        assertValues(entry, rxBytes, rxPackets, txBytes, txPackets, operations);
416    }
417
418    private static void assertValues(
419            NetworkStats.Entry entry, String iface, int uid, int set, int tag) {
420        assertEquals(iface, entry.iface);
421        assertEquals(uid, entry.uid);
422        assertEquals(set, entry.set);
423        assertEquals(tag, entry.tag);
424    }
425
426    private static void assertValues(NetworkStats.Entry entry, long rxBytes, long rxPackets,
427            long txBytes, long txPackets, long operations) {
428        assertEquals(rxBytes, entry.rxBytes);
429        assertEquals(rxPackets, entry.rxPackets);
430        assertEquals(txBytes, entry.txBytes);
431        assertEquals(txPackets, entry.txPackets);
432        assertEquals(operations, entry.operations);
433    }
434
435}
436