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  package org.apache.cayenne.project.compatibility;
  
  import java.net.URL;
  
  import org.apache.cayenne.di.DIBootstrap;
  import org.apache.cayenne.di.Injector;
  import org.apache.cayenne.project.upgrade.UpgradeService;
  import org.apache.cayenne.resource.Resource;
  import org.apache.cayenne.resource.URLResource;
  import org.junit.Test;
  import org.w3c.dom.Document;
  
  import static org.junit.Assert.*;
  
  /**
   * @since 4.1
   */
  public class CompatibilityUpgradeServiceIT {
  
      @Test
      public void testUpgradeFullProjectDom() {
          Injector injector = getInjector();
  
          CompatibilityUpgradeService upgradeService = (CompatibilityUpgradeService)injector
                  .getInstance(UpgradeService.class);
  
          DocumentProvider documentProvider = injector.getInstance(DocumentProvider.class);
  
          URL resourceUrl = getClass().getResource("cayenne-project-v6.xml");
          Resource resource = new URLResource(resourceUrl);
          upgradeService.upgradeProject(resource);
  
          Document domainDocument = documentProvider.getDocument(resourceUrl);
  
          assertNotNull(domainDocument);
          assertEquals("11", domainDocument.getDocumentElement().getAttribute("project-version"));
  
          URL dataMapUrl = getClass().getResource("test-map-v6.map.xml");
          Document dataMapDocument = documentProvider.getDocument(dataMapUrl);
          assertNotNull(dataMapDocument);
          assertEquals("11", dataMapDocument.getDocumentElement().getAttribute("project-version"));
          assertEquals(1, dataMapDocument.getElementsByTagName("obj-entity").getLength());
          assertEquals(1, dataMapDocument.getElementsByTagName("db-entity").getLength());
          assertEquals(2, dataMapDocument.getElementsByTagName("db-attribute").getLength());
      }
  
      @Test
      public void testUpgradeStandAloneDataMapDom() {
          Injector injector = getInjector();
  
          CompatibilityUpgradeService upgradeService = (CompatibilityUpgradeService)injector
                  .getInstance(UpgradeService.class);
  
          DocumentProvider documentProvider = injector.getInstance(DocumentProvider.class);
  
          URL dataMapUrl = getClass().getResource("test-map-v6.map.xml");
          Document dataMapDocument = documentProvider.getDocument(dataMapUrl);
          assertNull(dataMapDocument);
  
          Resource resource = new URLResource(dataMapUrl);
          upgradeService.upgradeDataMap(resource);
  
          dataMapDocument = documentProvider.getDocument(dataMapUrl);
          assertNotNull(dataMapDocument);
          assertEquals("11", dataMapDocument.getDocumentElement().getAttribute("project-version"));
      }
  
      private Injector getInjector() {
          return DIBootstrap.createInjector(new CompatibilityTestModule());
      }
  }