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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
   *
   *     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.
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  package org.apache.ambari.server.upgrade;
  
  import java.sql.SQLException;
  import java.util.List;
  import java.util.Set;
  
  import org.apache.ambari.server.AmbariException;
  import org.apache.ambari.server.H2DatabaseCleaner;
  import org.apache.ambari.server.api.services.AmbariMetaInfo;
  import org.apache.ambari.server.orm.GuiceJpaInitializer;
  import org.apache.ambari.server.orm.InMemoryDefaultTestModule;
  import org.apache.ambari.server.security.TestAuthenticationFactory;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.springframework.security.core.context.SecurityContextHolder;
  
  import com.google.inject.Guice;
  import com.google.inject.Inject;
  import com.google.inject.Injector;
  import com.google.inject.multibindings.Multibinder;
  
  import junit.framework.Assert;
  
  public class UpgradeCatalogTest {
    private Injector injector;
    private AmbariMetaInfo metaInfo;
    private final String DESIRED_STACK_VERSION = "{\"stackName\":\"HDP\"," +
      "\"stackVersion\":\"1.2.0\"}";
  
    private static class UpgradeCatalog201 extends AbstractUpgradeCatalog {
  
      @Inject
      public UpgradeCatalog201(Injector injector) {
        super(injector);
      }
  
      @Override
      public void executeDDLUpdates() throws AmbariException, SQLException {
        // do nothing: only for path testing
      }
  
      @Override
      public void executePreDMLUpdates() throws AmbariException, SQLException {
  
      }
  
      @Override
      public void executeDMLUpdates() throws AmbariException, SQLException {
  
      }
  
      @Override
      public String getTargetVersion() {
        return "2.0.1";
      }
    }
  
    private static class UpgradeHelperModuleTest extends InMemoryDefaultTestModule {
      @Override
      protected void configure() {
        super.configure();
  
        // Add binding to each newly created catalog
        Multibinder<UpgradeCatalog> catalogBinder =
          Multibinder.newSetBinder(binder(), UpgradeCatalog.class);
        catalogBinder.addBinding().to(UpgradeCatalog201.class);
        catalogBinder.addBinding().to(UpgradeCatalog251.class);
        catalogBinder.addBinding().to(UpgradeCatalog252.class);
        catalogBinder.addBinding().to(UpgradeCatalog270.class);
      }
    }
  
    @Before
    public void setup() throws Exception {
      injector  = Guice.createInjector(new UpgradeHelperModuleTest());
      injector.getInstance(GuiceJpaInitializer.class);
      metaInfo = injector.getInstance(AmbariMetaInfo.class);
  
      // Set the authenticated user
      // TODO: remove this or replace the authenticated user to test authorization rules
      SecurityContextHolder.getContext().setAuthentication(TestAuthenticationFactory.createAdministrator("admin"));
    }
  
    @After
    public void teardown() throws AmbariException, SQLException {
      H2DatabaseCleaner.clearDatabaseAndStopPersistenceService(injector);
  
      // Clear the authenticated user
      SecurityContextHolder.getContext().setAuthentication(null);
    }
  
    @Test
    public void testUpgradePath() throws Exception {
      SchemaUpgradeHelper schemaUpgradeHelper = injector.getInstance(SchemaUpgradeHelper.class);
  
      Set<UpgradeCatalog> upgradeCatalogSet = schemaUpgradeHelper.getAllUpgradeCatalogs();
  
      Assert.assertNotNull(upgradeCatalogSet);
      Assert.assertEquals(4, upgradeCatalogSet.size());
  
      List<UpgradeCatalog> upgradeCatalogs = schemaUpgradeHelper.getUpgradePath(null, "2.5.1");
  
      Assert.assertNotNull(upgradeCatalogs);
      Assert.assertEquals(2, upgradeCatalogs.size());
      Assert.assertEquals("2.0.1", upgradeCatalogs.get(0).getTargetVersion());
      Assert.assertEquals("2.5.1", upgradeCatalogs.get(1).getTargetVersion());
    }
  }
  