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   1 /*
   2  * SonarQube
   3  * Copyright (C) 2009-2017 SonarSource SA
   4  * mailto:info AT sonarsource DOT com
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 3 of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20 package org.sonar.server.qualitygate.changeevent;
  21
  22 import com.google.common.collect.ImmutableList;
  23 import java.util.Arrays;
  24 import java.util.Collection;
  25 import java.util.Collections;
  26 import java.util.List;
  27 import java.util.Random;
  28 import org.junit.Rule;
  29 import org.junit.Test;
  30 import org.mockito.ArgumentCaptor;
  31 import org.mockito.InOrder;
  32 import org.mockito.Mockito;
  33 import org.sonar.api.utils.log.LogTester;
  34 import org.sonar.api.utils.log.LoggerLevel;
  35 import org.sonar.core.issue.DefaultIssue;
  36 import org.sonar.db.component.ComponentDto;
  37
  38 import static java.util.Collections.emptyList;
  39 import static java.util.Collections.singletonList;
  40 import static org.assertj.core.api.Assertions.assertThat;
  41 import static org.mockito.Matchers.eq;
  42 import static org.mockito.Mockito.doThrow;
  43 import static org.mockito.Mockito.mock;
  44 import static org.mockito.Mockito.verify;
  45 import static org.mockito.Mockito.verifyZeroInteractions;
  46
  47 public class QGChangeEventListenersImplTest {
  48   @Rule
  49   public LogTester logTester = new LogTester();
  50
  51   private QGChangeEventListener listener1 = mock(QGChangeEventListener.class);
  52   private QGChangeEventListener listener2 = mock(QGChangeEventListener.class);
  53   private QGChangeEventListener listener3 = mock(QGChangeEventListener.class);
  54   private QGChangeEventFactory.IssueChangeData issueChangeData = new QGChangeEventFactory.IssueChangeData(singletonList(new DefaultIssue()), singletonList(new ComponentDto()));
  55   private InOrder inOrder = Mockito.inOrder(listener1, listener2, listener3);
  56   private List<QGChangeEvent> threeChangeEvents = Arrays.asList(mock(QGChangeEvent.class), mock(QGChangeEvent.class));
  57
  58   private QGChangeEventListenersImpl underTest = new QGChangeEventListenersImpl(new QGChangeEventListener[] {listener1, listener2, listener3});
  59
  60   @Test
  61   public void broadcastOnIssueChange_has_no_effect_when_issueChangeData_is_empty() {
  62     QGChangeEventFactory.IssueChangeData issueChangeData = new QGChangeEventFactory.IssueChangeData(emptyList(), emptyList());
  63
  64     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
  65
  66     verifyZeroInteractions(listener1, listener2, listener3);
  67   }
  68
  69   @Test
  70   public void broadcastOnIssueChange_has_no_effect_when_issueChangeData_has_no_issue() {
  71     QGChangeEventFactory.IssueChangeData issueChangeData = new QGChangeEventFactory.IssueChangeData(emptyList(), singletonList(new ComponentDto()));
  72
  73     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
  74
  75     verifyZeroInteractions(listener1, listener2, listener3);
  76   }
  77
  78   @Test
  79   public void broadcastOnIssueChange_has_no_effect_when_issueChangeData_has_no_component() {
  80     QGChangeEventFactory.IssueChangeData issueChangeData = new QGChangeEventFactory.IssueChangeData(singletonList(new DefaultIssue()), emptyList());
  81
  82     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
  83
  84     verifyZeroInteractions(listener1, listener2, listener3);
  85   }
  86
  87   @Test
  88   public void broadcastOnIssueChange_has_no_effect_when_no_changeEvent() {
  89
  90     underTest.broadcastOnIssueChange(issueChangeData, Collections.emptySet());
  91
  92     verifyZeroInteractions(listener1, listener2, listener3);
  93   }
  94
  95   @Test
  96   public void broadcastOnIssueChange_passes_Trigger_and_collection_to_all_listeners_in_order_of_addition_to_constructor() {
  97     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
  98
  99     inOrder.verify(listener1).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 100     inOrder.verify(listener2).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 101     inOrder.verify(listener3).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 102     inOrder.verifyNoMoreInteractions();
 103   }
 104
 105   @Test
 106   public void broadcastOnIssueChange_calls_all_listeners_even_if_one_throws_an_exception() {
 107     QGChangeEventListener failingListener = new QGChangeEventListener[] {listener1, listener2, listener3}[new Random().nextInt(3)];
 108     doThrow(new RuntimeException("Faking an exception thrown by onChanges"))
 109       .when(failingListener)
 110       .onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 111
 112     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
 113
 114     inOrder.verify(listener1).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 115     inOrder.verify(listener2).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 116     inOrder.verify(listener3).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 117     inOrder.verifyNoMoreInteractions();
 118     assertThat(logTester.logs()).hasSize(4);
 119     assertThat(logTester.logs(LoggerLevel.WARN)).hasSize(1);
 120   }
 121
 122   @Test
 123   public void broadcastOnIssueChange_stops_calling_listeners_when_one_throws_an_ERROR() {
 124     doThrow(new Error("Faking an error thrown by a listener"))
 125       .when(listener2)
 126       .onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 127
 128     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
 129
 130     inOrder.verify(listener1).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 131     inOrder.verify(listener2).onChanges(Trigger.ISSUE_CHANGE, threeChangeEvents);
 132     inOrder.verifyNoMoreInteractions();
 133     assertThat(logTester.logs()).hasSize(3);
 134     assertThat(logTester.logs(LoggerLevel.WARN)).hasSize(1);
 135   }
 136
 137   @Test
 138   public void broadcastOnIssueChange_logs_each_listener_call_at_TRACE_level() {
 139     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
 140
 141     assertThat(logTester.logs()).hasSize(3);
 142     List<String> traceLogs = logTester.logs(LoggerLevel.TRACE);
 143     assertThat(traceLogs).hasSize(3)
 144       .containsOnly(
 145         "calling onChange() on listener " + listener1.getClass().getName() + " for events " + threeChangeEvents.toString() + "...",
 146         "calling onChange() on listener " + listener2.getClass().getName() + " for events " + threeChangeEvents.toString() + "...",
 147         "calling onChange() on listener " + listener3.getClass().getName() + " for events " + threeChangeEvents.toString() + "...");
 148   }
 149
 150   @Test
 151   public void broadcastOnIssueChange_passes_immutable_list_of_events() {
 152     QGChangeEventListenersImpl underTest = new QGChangeEventListenersImpl(new QGChangeEventListener[] {listener1});
 153
 154     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
 155
 156     ArgumentCaptor<Collection> collectionCaptor = ArgumentCaptor.forClass(Collection.class);
 157     verify(listener1).onChanges(eq(Trigger.ISSUE_CHANGE), collectionCaptor.capture());
 158     assertThat(collectionCaptor.getValue()).isInstanceOf(ImmutableList.class);
 159   }
 160
 161   @Test
 162   public void broadcastOnIssueChange_has_no_effect_when_no_listener() {
 163     QGChangeEventListenersImpl underTest = new QGChangeEventListenersImpl();
 164
 165     underTest.broadcastOnIssueChange(issueChangeData, threeChangeEvents);
 166
 167     verifyZeroInteractions(listener1, listener2, listener3);
 168   }
 169
 170 }