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  package org.apache.cayenne;
  
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.testdo.testmap.Artist;
  import org.apache.cayenne.testdo.testmap.Painting;
  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.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.fail;
  
  @UseCayenneRuntime(CayenneProjects.TESTMAP_PROJECT)
  public class PersistenceByReachabilityIT extends RuntimeCase {
  
      @Inject
      private ObjectContext context;
  
      @Inject
      private ObjectContext context1;
  
      @Test
      public void testToOneTargetTransient() throws Exception {
          Painting persistentDO = context.newObject(Painting.class);
  
          Artist transientDO = new Artist();
          persistentDO.setToOneTarget(Painting.TO_ARTIST.getName(), transientDO, false);
  
          assertEquals(PersistenceState.NEW, transientDO.getPersistenceState());
      }
  
      @Test
      public void testToOneTargetPersistent() throws Exception {
          Painting transientDO = context.newObject(Painting.class);
  
          Artist persistentDO = new Artist();
          transientDO.setToOneTarget(Painting.TO_ARTIST.getName(), persistentDO, false);
  
          assertEquals(PersistenceState.NEW, transientDO.getPersistenceState());
      }
  
      @Test
      public void testToOneTargetDifferentContext() throws Exception {
  
          Painting doC1 = context.newObject(Painting.class);
          Artist doC2 = context1.newObject(Artist.class);
  
          // this is the case where exception must be thrown as DataContexts are
          // different
          try {
              doC1.setToOneTarget(Painting.TO_ARTIST.getName(), doC2, false);
              fail("failed to detect relationship between objects in different DataContexts");
          }
          catch (CayenneRuntimeException ex) {
              // expected
          }
      }
  
      @Test
      public void testToManyTargetDifferentContext() throws Exception {
          Painting doC1 = context.newObject(Painting.class);
          Artist doC2 = context1.newObject(Artist.class);
  
          // this is the case where exception must be thrown as DataContexts are
          // different
          try {
              doC2.addToManyTarget(Artist.PAINTING_ARRAY.getName(), doC1, false);
              fail("failed to detect relationship between objects in different DataContexts");
          }
          catch (CayenneRuntimeException ex) {
  
          }
      }
  
      @Test
      public void testToManyTargetTransient() throws Exception {
          Painting transientDO = context.newObject(Painting.class);
  
          Artist persistentDO = new Artist();
          persistentDO.addToManyTarget(Artist.PAINTING_ARRAY.getName(), transientDO, false);
  
          assertEquals(PersistenceState.NEW, transientDO.getPersistenceState());
      }
  
      @Test
      public void testToManyTargetPersistent() throws Exception {
          Painting persistentDO = context.newObject(Painting.class);
  
          Artist transientDO = new Artist();
          transientDO.addToManyTarget(Artist.PAINTING_ARRAY.getName(), persistentDO, false);
  
          assertEquals(PersistenceState.NEW, transientDO.getPersistenceState());
      }
  }
  