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 com.cloud.capacity;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.any;
  import static org.mockito.Mockito.doReturn;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.cloudstack.utils.bytescale.ByteScaleUtils;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.Spy;
  import org.mockito.junit.MockitoJUnitRunner;
  
  import com.cloud.dc.ClusterDetailsDao;
  import com.cloud.host.Host;
  import com.cloud.offering.ServiceOffering;
  import com.cloud.service.ServiceOfferingVO;
  import com.cloud.service.dao.ServiceOfferingDao;
  import com.cloud.utils.Pair;
  import com.cloud.vm.VmDetailConstants;
  
  @RunWith(MockitoJUnitRunner.class)
  public class CapacityManagerImplTest {
      @Mock
      ClusterDetailsDao clusterDetailsDao;
      @Mock
      ServiceOfferingDao serviceOfferingDao;
  
      @Spy
      @InjectMocks
      CapacityManagerImpl capacityManager = new CapacityManagerImpl();
  
  
      private Host host;
      private ServiceOffering offering;
      private static final long CLUSTER_ID = 1L;
      private static final int OFFERING_CPU = 4;
      private static final int OFFERING_CPU_SPEED = 2000;
      private static final int OFFERING_MEMORY = 4096;
  
      @Before
      public void setUp() {
          host = mock(Host.class);
          offering = mock(ServiceOffering.class);
          when(host.getClusterId()).thenReturn(CLUSTER_ID);
          when(offering.getCpu()).thenReturn(OFFERING_CPU);
          when(offering.getSpeed()).thenReturn(OFFERING_CPU_SPEED);
          when(offering.getRamSize()).thenReturn(OFFERING_MEMORY);
      }
  
      @Test
      public void testGetClusterValues() {
          long clusterId = 1L;
          String cpuOvercommit = "2.0";
          String memoryOvercommit = "1.0";
          Map<String, String> clusterDetails = new HashMap<>();
          clusterDetails.put(VmDetailConstants.CPU_OVER_COMMIT_RATIO, cpuOvercommit);
          clusterDetails.put(VmDetailConstants.MEMORY_OVER_COMMIT_RATIO, memoryOvercommit);
  
          when(clusterDetailsDao.findDetails(eq(clusterId), anyList())).thenReturn(clusterDetails);
  
          Pair<String, String> result = capacityManager.getClusterValues(clusterId);
  
          assertEquals(cpuOvercommit, result.first());
          assertEquals(memoryOvercommit, result.second());
          verify(clusterDetailsDao).findDetails(eq(clusterId), anyList());
      }
  
      @Test
      public void testGetServiceOfferingsMap() {
          Long offering1Id = 1L;
          ServiceOfferingVO offering1 = mock(ServiceOfferingVO.class);
          when(offering1.getId()).thenReturn(offering1Id);
          Long offering2Id = 2L;
          ServiceOfferingVO offering2 = mock(ServiceOfferingVO.class);
          when(offering2.getId()).thenReturn(offering2Id);
          when(serviceOfferingDao.listAllIncludingRemoved()).thenReturn(List.of(offering1, offering2));
          Map<Long, ServiceOfferingVO> result = capacityManager.getServiceOfferingsMap();
          assertEquals(2, result.size());
          assertEquals(offering1, result.get(offering1Id));
          assertEquals(offering2, result.get(offering2Id));
          verify(serviceOfferingDao).listAllIncludingRemoved();
      }
  
      @Test
      public void testGetServiceOfferingsMapEmptyList() {
          when(serviceOfferingDao.listAllIncludingRemoved()).thenReturn(Collections.emptyList());
          Map<Long, ServiceOfferingVO> result = capacityManager.getServiceOfferingsMap();
          assertTrue(result.isEmpty());
          verify(serviceOfferingDao).listAllIncludingRemoved();
      }
  
      @Test
      public void testCheckIfHostHasCpuCapabilityAndCapacity() {
          Float cpuOvercommit = 2.0f;
          Float memoryOvercommit = 1.5f;
          Pair<String, String> clusterDetails = new Pair<>(String.valueOf(cpuOvercommit), String.valueOf(memoryOvercommit));
          doReturn(clusterDetails).when(capacityManager).getClusterValues(CLUSTER_ID);
          doReturn(true).when(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU),
                  eq(OFFERING_CPU_SPEED));
          doReturn(true).when(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)), eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
          Pair<Boolean, Boolean> result = capacityManager.checkIfHostHasCpuCapabilityAndCapacity(host, offering, false);
          assertTrue(result.first());
          assertTrue(result.second());
          verify(capacityManager).getClusterValues(CLUSTER_ID);
          verify(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU), eq(OFFERING_CPU_SPEED));
          verify(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)),
                  eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
      }
  
      @Test
      public void testCheckIfHostHasNoCpuCapabilityButHasCapacity() {
          Float cpuOvercommit = 1.5f;
          Float memoryOvercommit = 1.2f;
          Pair<String, String> clusterDetails = new Pair<>(String.valueOf(cpuOvercommit), String.valueOf(memoryOvercommit));
          doReturn(clusterDetails).when(capacityManager).getClusterValues(CLUSTER_ID);
          doReturn(false).when(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU),
                  eq(OFFERING_CPU_SPEED));
          doReturn(true).when(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)), eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
          Pair<Boolean, Boolean> result = capacityManager.checkIfHostHasCpuCapabilityAndCapacity(host, offering, false);
          assertFalse(result.first());
          assertTrue(result.second());
          verify(capacityManager).getClusterValues(CLUSTER_ID);
          verify(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU), eq(OFFERING_CPU_SPEED));
          verify(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)),
                  eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
      }
  
      @Test
      public void testCheckIfHostHasCpuCapabilityButNoCapacity() {
          Float cpuOvercommit = 2.0f;
          Float memoryOvercommit = 1.5f;
          Pair<String, String> clusterDetails = new Pair<>(String.valueOf(cpuOvercommit), String.valueOf(memoryOvercommit));
          doReturn(clusterDetails).when(capacityManager).getClusterValues(CLUSTER_ID);
          doReturn(true).when(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU),
                  eq(OFFERING_CPU_SPEED));
          doReturn(false).when(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)), eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
          Pair<Boolean, Boolean> result = capacityManager.checkIfHostHasCpuCapabilityAndCapacity(host, offering, false);
          assertTrue(result.first());
          assertFalse(result.second());
          verify(capacityManager).getClusterValues(CLUSTER_ID);
          verify(capacityManager).checkIfHostHasCpuCapability(any(Host.class), eq(OFFERING_CPU), eq(OFFERING_CPU_SPEED));
          verify(capacityManager).checkIfHostHasCapacity(eq(host), eq(OFFERING_CPU * OFFERING_CPU_SPEED),
                  eq(ByteScaleUtils.mebibytesToBytes(OFFERING_MEMORY)),
                  eq(false), eq(cpuOvercommit), eq(memoryOvercommit), eq(false));
      }
  }
  