content: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you 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 org.apache.cloudstack.affinity;
  
  import com.cloud.deploy.DeployDestination;
  import com.cloud.deploy.DeploymentPlan;
  import com.cloud.host.Host;
  import com.cloud.vm.VMInstanceVO;
  import com.cloud.vm.VirtualMachine;
  import com.cloud.vm.VirtualMachineProfile;
  import com.cloud.vm.dao.VMInstanceDao;
  import org.apache.cloudstack.affinity.dao.AffinityGroupDao;
  import org.apache.cloudstack.affinity.dao.AffinityGroupVMMapDao;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  import org.mockito.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  import org.mockito.Spy;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertTrue;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @RunWith(JUnit4.class)
  public class HostAffinityProcessorTest {
  
      private static final long AFFINITY_GROUP_ID = 2L;
      private static final String AFFINITY_GROUP_NAME = "Host affinity group";
      private static final Long VM_ID = 3L;
      private static final Long GROUP_VM_1_ID = 1L;
      private static final Long GROUP_VM_2_ID = 2L;
      private static final Long HOST_ID = 1L;
      private static final Long HOST_2_ID = 2L;
  
      @Mock
      AffinityGroupDao affinityGroupDao;
  
      @Mock
      AffinityGroupVMMapDao affinityGroupVMMapDao;
  
      @Mock
      VMInstanceDao vmInstanceDao;
  
      @Spy
      @InjectMocks
      HostAffinityProcessor processor = new HostAffinityProcessor();
  
      @Mock
      DeploymentPlan plan;
  
      @Mock
      VirtualMachine vm;
  
      @Mock
      VMInstanceVO groupVM1;
  
      @Mock
      VMInstanceVO groupVM2;
  
      @Mock
      AffinityGroupVO affinityGroupVO;
  
      @Mock
      AffinityGroupVMMapVO mapVO;
  
      @Mock
      DeployDestination dest;
  
      @Mock
      Host host;
  
      @Mock
      VirtualMachineProfile profile;
  
      private AutoCloseable closeable;
  
      @Before
      public void setup() {
          closeable = MockitoAnnotations.openMocks(this);
  
          when(groupVM1.getHostId()).thenReturn(HOST_ID);
          when(groupVM2.getHostId()).thenReturn(HOST_ID);
          when(vmInstanceDao.findById(GROUP_VM_1_ID)).thenReturn(groupVM1);
          when(vmInstanceDao.findById(GROUP_VM_2_ID)).thenReturn(groupVM2);
  
          when(affinityGroupVMMapDao.listVmIdsByAffinityGroup(AFFINITY_GROUP_ID)).thenReturn(new ArrayList<>(Arrays.asList(GROUP_VM_1_ID, GROUP_VM_2_ID, VM_ID)));
  
          when(vm.getId()).thenReturn(VM_ID);
  
          when(affinityGroupVO.getId()).thenReturn(AFFINITY_GROUP_ID);
          when(affinityGroupVO.getName()).thenReturn(AFFINITY_GROUP_NAME);
          when(mapVO.getAffinityGroupId()).thenReturn(AFFINITY_GROUP_ID);
  
          when(affinityGroupDao.findById(AFFINITY_GROUP_ID)).thenReturn(affinityGroupVO);
  
          when(dest.getHost()).thenReturn(host);
          when(host.getId()).thenReturn(HOST_ID);
          when(profile.getVirtualMachine()).thenReturn(vm);
          when(affinityGroupVMMapDao.findByVmIdType(eq(VM_ID), any())).thenReturn(new ArrayList<>(Arrays.asList(mapVO)));
      }
  
      @After
      public void tearDown() throws Exception {
          closeable.close();
      }
  
      @Test
      public void testProcessAffinityGroupMultipleVMs() {
          processor.processAffinityGroup(mapVO, plan, vm);
          verify(plan).setPreferredHosts(Arrays.asList(HOST_ID));
      }
  
      @Test
      public void testProcessAffinityGroupEmptyGroup() {
          when(affinityGroupVMMapDao.listVmIdsByAffinityGroup(AFFINITY_GROUP_ID)).thenReturn(new ArrayList<>());
          processor.processAffinityGroup(mapVO, plan, vm);
          verify(plan).setPreferredHosts(new ArrayList<>());
      }
  
      @Test
      public void testGetPreferredHostsFromGroupVMIdsMultipleVMs() {
          List<Long> list = new ArrayList<>(Arrays.asList(GROUP_VM_1_ID, GROUP_VM_2_ID));
          List<Long> preferredHosts = processor.getPreferredHostsFromGroupVMIds(list, Collections.emptyList());
          assertNotNull(preferredHosts);
          assertEquals(1, preferredHosts.size());
          assertEquals(HOST_ID, preferredHosts.get(0));
      }
  
      @Test
      public void testGetPreferredHostsFromGroupVMIdsEmptyVMsList() {
          List<Long> list = new ArrayList<>();
          List<Long> preferredHosts = processor.getPreferredHostsFromGroupVMIds(list, Collections.emptyList());
          assertNotNull(preferredHosts);
          assertTrue(preferredHosts.isEmpty());
      }
  
      @Test
      public void testCheckAffinityGroup() {
          assertTrue(processor.checkAffinityGroup(mapVO, vm, HOST_ID));
      }
  
      @Test
      public void testCheckAffinityGroupWrongHostId() {
          assertFalse(processor.checkAffinityGroup(mapVO, vm, HOST_2_ID));
      }
  
      @Test
      public void testCheck() {
          assertTrue(processor.check(profile, dest));
      }
  
      @Test
      public void testCheckWrongHostId() {
          when(host.getId()).thenReturn(HOST_2_ID);
          assertFalse(processor.check(profile, dest));
      }
  }
  