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   * 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
   * <p>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p>
   * 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.atlas.ha;
  
  import org.apache.atlas.AtlasConstants;
  import org.apache.atlas.security.SecurityProperties;
  import org.apache.commons.configuration.Configuration;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  import org.testng.annotations.BeforeMethod;
  import org.testng.annotations.Test;
  
  import java.util.List;
  
  import static org.mockito.Mockito.when;
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertFalse;
  import static org.testng.Assert.assertTrue;
  
  public class HAConfigurationTest {
      private static final String[] TEST_ATLAS_SERVER_IDS_HA = new String[] {"id1", "id2"};
  
      @Mock
      private Configuration configuration;
  
      @BeforeMethod
      public void setup() {
          MockitoAnnotations.initMocks(this);
  
          System.setProperty(AtlasConstants.SYSTEM_PROPERTY_APP_PORT, AtlasConstants.DEFAULT_APP_PORT_STR);
      }
  
      @Test
      public void testIsHAEnabledByLegacyConfiguration() {
          when(configuration.containsKey(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(true);
          when(configuration.getBoolean(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(Boolean.TRUE);
  
          boolean isHAEnabled = HAConfiguration.isHAEnabled(configuration);
          assertTrue(isHAEnabled);
  
          // restore
          when(configuration.containsKey(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(false);
          isHAEnabled = HAConfiguration.isHAEnabled(configuration);
          assertFalse(isHAEnabled);
      }
  
      @Test
      public void testIsHAEnabledByIds() {
          when(configuration.containsKey(HAConfiguration.ATLAS_SERVER_HA_ENABLED_KEY)).thenReturn(false);
          when(configuration.getStringArray(HAConfiguration.ATLAS_SERVER_IDS)).thenReturn(TEST_ATLAS_SERVER_IDS_HA);
          boolean isHAEnabled = HAConfiguration.isHAEnabled(configuration);
          assertTrue(isHAEnabled);
  
          // restore
          when(configuration.getStringArray(HAConfiguration.ATLAS_SERVER_IDS)).thenReturn(new String[] {"id1"});
          isHAEnabled = HAConfiguration.isHAEnabled(configuration);
          assertFalse(isHAEnabled);
      }
  
      @Test
      public void testShouldReturnHTTPSBoundAddress() {
          when(configuration.getString(HAConfiguration.ATLAS_SERVER_ADDRESS_PREFIX + "id1")).thenReturn("127.0.0.1:21443");
          when(configuration.getBoolean(SecurityProperties.TLS_ENABLED)).thenReturn(true);
  
          String address = HAConfiguration.getBoundAddressForId(configuration, "id1");
  
          assertEquals(address, "https://127.0.0.1:21443");
      }
  
      @Test
      public void testShouldReturnListOfAddressesInConfig() {
          when(configuration.getStringArray(HAConfiguration.ATLAS_SERVER_IDS)).thenReturn(TEST_ATLAS_SERVER_IDS_HA);
          when(configuration.getString(HAConfiguration.ATLAS_SERVER_ADDRESS_PREFIX + "id1")).thenReturn("127.0.0.1:21000");
          when(configuration.getString(HAConfiguration.ATLAS_SERVER_ADDRESS_PREFIX + "id2")).thenReturn("127.0.0.1:31000");
  
          List<String> serverInstances = HAConfiguration.getServerInstances(configuration);
          assertEquals(serverInstances.size(), 2);
          assertTrue(serverInstances.contains("http://127.0.0.1:21000"));
          assertTrue(serverInstances.contains("http://127.0.0.1:31000"));
      }
  
      @Test
      public void testShouldGetZookeeperAcl() {
          when(configuration.getString(HAConfiguration.HA_ZOOKEEPER_ACL)).thenReturn("sasl:myclient@EXAMPLE.COM");
  
          HAConfiguration.ZookeeperProperties zookeeperProperties = HAConfiguration.getZookeeperProperties(configuration);
          assertTrue(zookeeperProperties.hasAcl());
      }
  
      @Test
      public void testShouldGetZookeeperAuth() {
          when(configuration.getString(HAConfiguration.HA_ZOOKEEPER_AUTH)).thenReturn("sasl:myclient@EXAMPLE.COM");
  
          HAConfiguration.ZookeeperProperties zookeeperProperties = HAConfiguration.getZookeeperProperties(configuration);
          assertTrue(zookeeperProperties.hasAuth());
      }
  }
  