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  package org.apache.cayenne.dbsync.merge.token;
  
  import org.apache.cayenne.access.DataNode;
  import org.apache.cayenne.dbsync.merge.context.MergerContext;
  import org.apache.cayenne.dbsync.merge.factory.DefaultMergerTokenFactory;
  import org.apache.cayenne.map.DataMap;
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.map.DbEntity;
  import org.junit.Test;
  
  import static org.apache.cayenne.dbsync.merge.builders.ObjectMother.dataMap;
  import static org.apache.cayenne.dbsync.merge.builders.ObjectMother.dbAttr;
  import static org.apache.cayenne.dbsync.merge.builders.ObjectMother.dbEntity;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  /**
   * @since 4.0.
   */
  public class TokensToModelExecutionTest {
  
      @Test
      public void testCreateAndDropTable() throws Exception {
          DbEntity entity = dbEntity().build();
  
          DataMap dataMap = dataMap().build();
          assertTrue(dataMap.getDbEntityMap().isEmpty());
          assertTrue(dataMap.getObjEntityMap().isEmpty());
  
          MergerContext context = MergerContext.builder(dataMap).dataNode(new DataNode()).build();
          new DefaultMergerTokenFactory().createCreateTableToModel(entity).execute(context);
  
          assertEquals(1, dataMap.getDbEntityMap().size());
          assertEquals(1, dataMap.getObjEntities().size());
          assertEquals(entity, dataMap.getDbEntity(entity.getName()));
  
          new DefaultMergerTokenFactory().createDropTableToModel(entity).execute(context);
          assertTrue(dataMap.getDbEntityMap().isEmpty());
          assertTrue(dataMap.getObjEntityMap().isEmpty());
      }
  
      @Test
      public void testCreateAndDropColumn() throws Exception {
          DbAttribute attr = dbAttr("attr").build();
          DbEntity entity = dbEntity().build();
  
          DataMap dataMap = dataMap().with(entity).build();
          assertEquals(1, dataMap.getDbEntityMap().size());
          assertTrue(dataMap.getObjEntityMap().isEmpty());
  
          MergerContext context = MergerContext.builder(dataMap).dataNode(new DataNode()).build();
          new DefaultMergerTokenFactory().createAddColumnToModel(entity, attr).execute(context);
  
          assertEquals(1, dataMap.getDbEntityMap().size());
          assertEquals(1, entity.getAttributes().size());
          assertEquals(attr, entity.getAttribute(attr.getName()));
  
          new DefaultMergerTokenFactory().createDropColumnToModel(entity, attr).execute(context);
          assertEquals(1, dataMap.getDbEntityMap().size());
          assertTrue(entity.getAttributes().isEmpty());
          assertTrue(dataMap.getObjEntityMap().isEmpty());
      }
  }
  