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  package org.apache.cayenne.access;
  
  import java.util.HashMap;
  
  import org.apache.cayenne.ObjectId;
  import org.apache.cayenne.PersistenceState;
  import org.apache.cayenne.Persistent;
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.assertSame;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  
  /**
   * @since 4.0
   */
  public class ObjectStoreTest {
  
      private ObjectStore objectStore;
  
      @Before
      public void before() {
          DataRowStore sharedCache = mock(DataRowStore.class);
          this.objectStore = new ObjectStore(sharedCache, new HashMap<Object, Persistent>());
      }
  
      @Test
      public void testRegisterNode() {
  
          ObjectId id = ObjectId.of("E1", "ID", 500);
          Persistent object = mock(Persistent.class);
  
          objectStore.registerNode(id, object);
          assertSame(object, objectStore.getNode(id));
      }
  
      @Test
      public void testUnregisterNode() {
  
          ObjectId id = ObjectId.of("E1", "ID", 500);
          Persistent object = mock(Persistent.class);
  
          objectStore.registerNode(id, object);
          Object unregistered = objectStore.unregisterNode(id);
          assertSame(object, unregistered);
  
          verify(object, times(0)).setObjectId(null);
          verify(object).setObjectContext(null);
          verify(object).setPersistenceState(PersistenceState.TRANSIENT);    }
  }