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.network.rules;
  
  import com.cloud.dc.DataCenter;
  import com.cloud.exception.ResourceUnavailableException;
  import com.cloud.network.Network;
  import com.cloud.network.router.VirtualRouter;
  
  import org.apache.cloudstack.network.BgpPeer;
  import org.apache.cloudstack.network.topology.NetworkTopologyVisitor;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.junit.MockitoJUnitRunner;
  
  import java.util.Arrays;
  import java.util.List;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertThrows;
  import static org.junit.Assert.assertTrue;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @RunWith(MockitoJUnitRunner.class)
  public class BgpPeersRulesTest {
  
      private BgpPeersRules bgpPeersRules;
      private Network mockNetwork;
      private List<BgpPeer> mockBgpPeers;
      private NetworkTopologyVisitor mockVisitor;
      private VirtualRouter mockRouter;
  
      @Before
      public void setUp() {
          mockNetwork = mock(Network.class);
          BgpPeer peer1 = mock(BgpPeer.class);
          BgpPeer peer2 = mock(BgpPeer.class);
          mockBgpPeers = Arrays.asList(peer1, peer2);
  
          mockVisitor = mock(NetworkTopologyVisitor.class);
          mockRouter = mock(VirtualRouter.class);
  
          bgpPeersRules = new BgpPeersRules(mockBgpPeers, mockNetwork);
      }
  
      @Test
      public void testGetBgpPeers() {
          List<? extends BgpPeer> bgpPeers = bgpPeersRules.getBgpPeers();
          assertNotNull(bgpPeers);
          assertEquals(2, bgpPeers.size());
          assertTrue(bgpPeers.containsAll(mockBgpPeers));
      }
  
      @Test
      public void testAccept() throws ResourceUnavailableException {
          when(mockVisitor.visit(bgpPeersRules)).thenReturn(true);
  
          boolean result = bgpPeersRules.accept(mockVisitor, mockRouter);
  
          assertTrue(result);
          verify(mockVisitor, times(1)).visit(bgpPeersRules);
      }
  
      @Test
      public void testAcceptThrowsResourceUnavailableException() throws ResourceUnavailableException {
          when(mockVisitor.visit(bgpPeersRules)).thenThrow(new ResourceUnavailableException("Resource Unavailable", DataCenter.class, 1L));
  
          ResourceUnavailableException thrown = assertThrows(ResourceUnavailableException.class, () -> {
              bgpPeersRules.accept(mockVisitor, mockRouter);
          });
  
          assertEquals("Resource [DataCenter:1] is unreachable: Resource Unavailable", thrown.getMessage());
          assertEquals(DataCenter.class, thrown.getScope());
          assertEquals(1L, thrown.getResourceId());
  
          verify(mockVisitor, times(1)).visit(bgpPeersRules);
      }
  }
  