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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.net.metrics;
import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
import static com.android.net.module.util.NetworkCapabilitiesUtils.unpackBits;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.timeout;
import static org.mockito.Mockito.verify;
import android.net.ConnectivityMetricsEvent;
import android.net.IIpConnectivityMetrics;
import android.net.Network;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class IpConnectivityLogTest {
private static final int FAKE_NET_ID = 100;
private static final int[] FAKE_TRANSPORT_TYPES = unpackBits(TRANSPORT_WIFI);
private static final long FAKE_TIME_STAMP = System.currentTimeMillis();
private static final String FAKE_INTERFACE_NAME = "test";
private static final IpReachabilityEvent FAKE_EV =
new IpReachabilityEvent(IpReachabilityEvent.NUD_FAILED);
@Mock IIpConnectivityMetrics mMockService;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
@Test
public void testLoggingEvents() throws Exception {
IpConnectivityLog logger = new IpConnectivityLog(mMockService);
assertTrue(logger.log(FAKE_EV));
assertTrue(logger.log(FAKE_TIME_STAMP, FAKE_EV));
assertTrue(logger.log(FAKE_NET_ID, FAKE_TRANSPORT_TYPES, FAKE_EV));
assertTrue(logger.log(new Network(FAKE_NET_ID), FAKE_TRANSPORT_TYPES, FAKE_EV));
assertTrue(logger.log(FAKE_INTERFACE_NAME, FAKE_EV));
assertTrue(logger.log(makeExpectedEvent(FAKE_TIME_STAMP, FAKE_NET_ID, TRANSPORT_WIFI,
FAKE_INTERFACE_NAME)));
List<ConnectivityMetricsEvent> got = verifyEvents(6);
assertEventsEqual(makeExpectedEvent(got.get(0).timestamp, 0, 0, null), got.get(0));
assertEventsEqual(makeExpectedEvent(FAKE_TIME_STAMP, 0, 0, null), got.get(1));
assertEventsEqual(makeExpectedEvent(got.get(2).timestamp, FAKE_NET_ID,
TRANSPORT_WIFI, null), got.get(2));
assertEventsEqual(makeExpectedEvent(got.get(3).timestamp, FAKE_NET_ID,
TRANSPORT_WIFI, null), got.get(3));
assertEventsEqual(makeExpectedEvent(got.get(4).timestamp, 0, 0, FAKE_INTERFACE_NAME),
got.get(4));
assertEventsEqual(makeExpectedEvent(FAKE_TIME_STAMP, FAKE_NET_ID,
TRANSPORT_WIFI, FAKE_INTERFACE_NAME), got.get(5));
}
@Test
public void testLoggingEventsWithMultipleCallers() throws Exception {
IpConnectivityLog logger = new IpConnectivityLog(mMockService);
final int nCallers = 10;
final int nEvents = 10;
for (int n = 0; n < nCallers; n++) {
final int i = n;
new Thread() {
public void run() {
for (int j = 0; j < nEvents; j++) {
assertTrue(logger.log(makeExpectedEvent(
FAKE_TIME_STAMP + i * 100 + j,
FAKE_NET_ID + i * 100 + j,
((i + j) % 2 == 0) ? TRANSPORT_WIFI : TRANSPORT_CELLULAR,
FAKE_INTERFACE_NAME)));
}
}
}.start();
}
List<ConnectivityMetricsEvent> got = verifyEvents(nCallers * nEvents, 200);
Collections.sort(got, EVENT_COMPARATOR);
Iterator<ConnectivityMetricsEvent> iter = got.iterator();
for (int i = 0; i < nCallers; i++) {
for (int j = 0; j < nEvents; j++) {
final long expectedTimestamp = FAKE_TIME_STAMP + i * 100 + j;
final int expectedNetId = FAKE_NET_ID + i * 100 + j;
final long expectedTransports =
((i + j) % 2 == 0) ? TRANSPORT_WIFI : TRANSPORT_CELLULAR;
assertEventsEqual(makeExpectedEvent(expectedTimestamp, expectedNetId,
expectedTransports, FAKE_INTERFACE_NAME), iter.next());
}
}
}
private List<ConnectivityMetricsEvent> verifyEvents(int n, int timeoutMs) throws Exception {
ArgumentCaptor<ConnectivityMetricsEvent> captor =
ArgumentCaptor.forClass(ConnectivityMetricsEvent.class);
verify(mMockService, timeout(timeoutMs).times(n)).logEvent(captor.capture());
return captor.getAllValues();
}
private List<ConnectivityMetricsEvent> verifyEvents(int n) throws Exception {
return verifyEvents(n, 10);
}
private ConnectivityMetricsEvent makeExpectedEvent(long timestamp, int netId, long transports,
String ifname) {
ConnectivityMetricsEvent ev = new ConnectivityMetricsEvent();
ev.timestamp = timestamp;
ev.data = FAKE_EV;
ev.netId = netId;
ev.transports = transports;
ev.ifname = ifname;
return ev;
}
/** Outer equality for ConnectivityMetricsEvent to avoid overriding equals() and hashCode(). */
private void assertEventsEqual(ConnectivityMetricsEvent expected,
ConnectivityMetricsEvent got) {
assertEquals(expected.data, got.data);
assertEquals(expected.timestamp, got.timestamp);
assertEquals(expected.netId, got.netId);
assertEquals(expected.transports, got.transports);
assertEquals(expected.ifname, got.ifname);
}
static final Comparator<ConnectivityMetricsEvent> EVENT_COMPARATOR =
Comparator.comparingLong((ev) -> ev.timestamp);
}
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