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   * Licensed to the Apache Software Foundation (ASF) under one
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   * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.ambari.server.upgrade;
  
  import static org.easymock.EasyMock.capture;
  import static org.easymock.EasyMock.createMock;
  import static org.easymock.EasyMock.createNiceMock;
  import static org.easymock.EasyMock.expect;
  import static org.easymock.EasyMock.replay;
  import static org.easymock.EasyMock.verify;
  
  import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.ambari.server.orm.dao.BlueprintDAO;
  import org.apache.ambari.server.orm.entities.BlueprintConfigEntity;
  import org.apache.ambari.server.orm.entities.BlueprintEntity;
  import org.easymock.Capture;
  import org.junit.Assert;
  import org.junit.Test;
  
  import com.google.inject.Injector;
  
  public class UpgradeCatalog275Test {
  
    @Test
    public void testRemoveDfsHAInitial() {
      Injector injector = createNiceMock(Injector.class);
      BlueprintDAO blueprintDAO = createMock(BlueprintDAO.class);
  
      BlueprintConfigEntity blueprintConfigEntity = new BlueprintConfigEntity();
      blueprintConfigEntity.setType("hadoop-env");
      blueprintConfigEntity.setConfigData("{\"dfs_ha_initial_namenode_standby\":\"%HOSTGROUP::master_2%\"," +
                                            "\"dfs_ha_initial_namenode_active\":\"u1602.ambari.apache.org\"}");
  
      List<BlueprintConfigEntity> blueprintConfigurations = Collections.singletonList(blueprintConfigEntity);
  
      BlueprintEntity blueprintEntity = new BlueprintEntity();
      blueprintEntity.setConfigurations(blueprintConfigurations);
  
      List<BlueprintEntity> blueprintEntityList = Collections.singletonList(blueprintEntity);
  
      expect(injector.getInstance(BlueprintDAO.class)).andReturn(blueprintDAO);
      expect(blueprintDAO.findAll()).andReturn(blueprintEntityList);
  
      Capture<BlueprintEntity> blueprintEntityCapture = Capture.newInstance();
      expect(blueprintDAO.merge(capture(blueprintEntityCapture))).andReturn(null);
  
      replay(injector, blueprintDAO);
  
      UpgradeCatalog275 upgradeCatalog275 = new UpgradeCatalog275(injector);
      upgradeCatalog275.removeDfsHAInitial();
  
      verify(injector, blueprintDAO);
  
      Assert.assertNotNull(blueprintEntityCapture.getValues());
      Assert.assertEquals(1, blueprintEntityCapture.getValues().size());
  
      BlueprintEntity blueprintEntityToMerge = blueprintEntityCapture.getValue();
  
      Collection<BlueprintConfigEntity> resultConfigurations = blueprintEntityToMerge.getConfigurations();
      for (BlueprintConfigEntity resultConfiguration : resultConfigurations) {
        if (resultConfiguration.getType().equals("hadoop-env")) {
          String configData = resultConfiguration.getConfigData();
  
          Map<String, String> typeProperties = UpgradeCatalog275.GSON.<Map<String, String>>fromJson(
            configData, Map.class);
          Assert.assertEquals(0, typeProperties.size());
          return;
        }
      }
      Assert.fail("No \"hadoop-env\" config type was found in result configuration");
    }
  }