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  package org.apache.cayenne.access;
  
  import java.util.List;
  
  import org.apache.cayenne.Fault;
  import org.apache.cayenne.PersistenceState;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.query.ObjectSelect;
  import org.apache.cayenne.reflect.ArcProperty;
  import org.apache.cayenne.reflect.ClassDescriptor;
  import org.apache.cayenne.test.jdbc.DBHelper;
  import org.apache.cayenne.test.jdbc.TableHelper;
  import org.apache.cayenne.testdo.relationships_flattened.FlattenedTest3;
  import org.apache.cayenne.unit.di.runtime.CayenneProjects;
  import org.apache.cayenne.unit.di.runtime.RuntimeCase;
  import org.apache.cayenne.unit.di.runtime.UseCayenneRuntime;
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  
  @UseCayenneRuntime(CayenneProjects.RELATIONSHIPS_FLATTENED_PROJECT)
  public class FlattenedRelationshipInContextIT extends RuntimeCase {
  
      @Inject
      protected DataContext context;
  
      @Inject
      protected DBHelper dbHelper;
  
      private TableHelper tFlattenedTest1;
      private TableHelper tFlattenedTest2;
      private TableHelper tFlattenedTest3;
  
      @Before
      public void setUp() throws Exception {
          tFlattenedTest1 = new TableHelper(dbHelper, "FLATTENED_TEST_1");
          tFlattenedTest1.setColumns("FT1_ID", "NAME");
  
          tFlattenedTest2 = new TableHelper(dbHelper, "FLATTENED_TEST_2");
          tFlattenedTest2.setColumns("FT2_ID", "FT1_ID", "NAME");
  
          tFlattenedTest3 = new TableHelper(dbHelper, "FLATTENED_TEST_3");
          tFlattenedTest3.setColumns("FT3_ID", "FT2_ID", "NAME");
      }
  
      protected void createFlattenedTestDataSet() throws Exception {
          tFlattenedTest1.insert(1, "ft1");
          tFlattenedTest1.insert(2, "ft12");
          tFlattenedTest2.insert(1, 1, "ft2");
          tFlattenedTest3.insert(1, 1, "ft3");
      }
  
      @Test
      public void testIsToOneTargetModifiedFlattenedFault1() throws Exception {
  
          createFlattenedTestDataSet();
  
          // fetch
          List<FlattenedTest3> ft3s = ObjectSelect.query(FlattenedTest3.class).select(context);
          assertEquals(1, ft3s.size());
          FlattenedTest3 ft3 = ft3s.get(0);
  
          // mark as dirty for the purpose of the test...
          ft3.setPersistenceState(PersistenceState.MODIFIED);
  
          assertTrue(ft3.readPropertyDirectly("toFT1") instanceof Fault);
  
          // test that checking for modifications does not trigger a fault, and generally
          // works well
  
          ClassDescriptor d = context.getEntityResolver().getClassDescriptor(
                  "FlattenedTest3");
          ArcProperty flattenedRel = (ArcProperty) d.getProperty("toFT1");
  
          ObjectDiff diff = context.getObjectStore().registerDiff(ft3.getObjectId(), null);
          assertFalse(DataRowUtils.isToOneTargetModified(flattenedRel, ft3, diff));
          assertTrue(ft3.readPropertyDirectly("toFT1") instanceof Fault);
      }
  
  }
  