| /* |
| * Copyright (C) 2016, 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 android.os.Bundle; |
| import android.os.Parcel; |
| import android.net.ConnectivityMetricsEvent; |
| import android.net.IConnectivityMetricsLogger; |
| |
| import junit.framework.TestCase; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.mockito.ArgumentCaptor; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| import static org.mockito.Mockito.any; |
| import static org.mockito.Mockito.eq; |
| import static org.mockito.Mockito.timeout; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.List; |
| |
| public class IpConnectivityLogTest extends TestCase { |
| |
| // use same Parcel object everywhere for pointer equality |
| static final Bundle FAKE_EV = new Bundle(); |
| |
| @Mock IConnectivityMetricsLogger mService; |
| ArgumentCaptor<ConnectivityMetricsEvent> evCaptor; |
| |
| IpConnectivityLog mLog; |
| |
| public void setUp() { |
| MockitoAnnotations.initMocks(this); |
| evCaptor = ArgumentCaptor.forClass(ConnectivityMetricsEvent.class); |
| mLog = new IpConnectivityLog(mService); |
| } |
| |
| public void testLogEvents() throws Exception { |
| assertTrue(mLog.log(1, FAKE_EV)); |
| assertTrue(mLog.log(2, FAKE_EV)); |
| assertTrue(mLog.log(3, FAKE_EV)); |
| |
| List<ConnectivityMetricsEvent> gotEvents = verifyEvents(3); |
| assertEventsEqual(expectedEvent(1), gotEvents.get(0)); |
| assertEventsEqual(expectedEvent(2), gotEvents.get(1)); |
| assertEventsEqual(expectedEvent(3), gotEvents.get(2)); |
| } |
| |
| public void testLogEventTriggerThrottling() throws Exception { |
| when(mService.logEvent(any())).thenReturn(1234L); |
| |
| assertFalse(mLog.log(1, FAKE_EV)); |
| } |
| |
| public void testLogEventFails() throws Exception { |
| when(mService.logEvent(any())).thenReturn(-1L); // Error. |
| |
| assertFalse(mLog.log(1, FAKE_EV)); |
| } |
| |
| public void testLogEventWhenThrottling() throws Exception { |
| when(mService.logEvent(any())).thenReturn(Long.MAX_VALUE); // Throttled |
| |
| // No events are logged. The service is only called once |
| // After that, throttling state is maintained locally. |
| assertFalse(mLog.log(1, FAKE_EV)); |
| assertFalse(mLog.log(2, FAKE_EV)); |
| |
| List<ConnectivityMetricsEvent> gotEvents = verifyEvents(1); |
| assertEventsEqual(expectedEvent(1), gotEvents.get(0)); |
| } |
| |
| public void testLogEventRecoverFromThrottling() throws Exception { |
| final long throttleTimeout = System.currentTimeMillis() + 50; |
| when(mService.logEvent(any())).thenReturn(throttleTimeout, 0L); |
| |
| assertFalse(mLog.log(1, FAKE_EV)); |
| new Thread() { |
| public void run() { |
| busySpinLog(); |
| } |
| }.start(); |
| |
| List<ConnectivityMetricsEvent> gotEvents = verifyEvents(2, 200); |
| assertEventsEqual(expectedEvent(1), gotEvents.get(0)); |
| assertEventsEqual(expectedEvent(2), gotEvents.get(1)); |
| } |
| |
| public void testLogEventRecoverFromThrottlingWithMultipleCallers() throws Exception { |
| final long throttleTimeout = System.currentTimeMillis() + 50; |
| when(mService.logEvent(any())).thenReturn(throttleTimeout, 0L); |
| |
| assertFalse(mLog.log(1, FAKE_EV)); |
| final int nCallers = 10; |
| for (int i = 0; i < nCallers; i++) { |
| new Thread() { |
| public void run() { |
| busySpinLog(); |
| } |
| }.start(); |
| } |
| |
| List<ConnectivityMetricsEvent> gotEvents = verifyEvents(1 + nCallers, 200); |
| assertEventsEqual(expectedEvent(1), gotEvents.get(0)); |
| for (int i = 0; i < nCallers; i++) { |
| assertEventsEqual(expectedEvent(2), gotEvents.get(1 + i)); |
| } |
| } |
| |
| void busySpinLog() { |
| final long timeout = 200; |
| final long stop = System.currentTimeMillis() + timeout; |
| try { |
| while (System.currentTimeMillis() < stop) { |
| if (mLog.log(2, FAKE_EV)) { |
| return; |
| } |
| Thread.sleep(10); |
| } |
| } catch (InterruptedException e) { } |
| } |
| |
| List<ConnectivityMetricsEvent> verifyEvents(int n) throws Exception { |
| verify(mService, times(n)).logEvent(evCaptor.capture()); |
| return evCaptor.getAllValues(); |
| } |
| |
| List<ConnectivityMetricsEvent> verifyEvents(int n, int timeoutMs) throws Exception { |
| verify(mService, timeout(timeoutMs).times(n)).logEvent(evCaptor.capture()); |
| return evCaptor.getAllValues(); |
| } |
| |
| static ConnectivityMetricsEvent expectedEvent(int timestamp) { |
| return new ConnectivityMetricsEvent((long)timestamp, 0, 0, FAKE_EV); |
| } |
| |
| /** Outer equality for ConnectivityMetricsEvent to avoid overriding equals() and hashCode(). */ |
| static void assertEventsEqual(ConnectivityMetricsEvent expected, ConnectivityMetricsEvent got) { |
| assertEquals(expected.timestamp, got.timestamp); |
| assertEquals(expected.componentTag, got.componentTag); |
| assertEquals(expected.eventTag, got.eventTag); |
| assertEquals(expected.data, got.data); |
| } |
| } |