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  package org.apache.cayenne.access;
  
  import org.apache.cayenne.ObjectContext;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.runtime.CayenneRuntime;
  import org.apache.cayenne.testdo.testmap.Artist;
  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.apache.cayenne.validation.ValidationException;
  import org.junit.Test;
  
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  @UseCayenneRuntime(CayenneProjects.TESTMAP_PROJECT)
  public class NestedDataContextValidationIT extends RuntimeCase {
  
      @Inject
      protected CayenneRuntime runtime;
      
      @Inject
      private DataContext context;
  
      @Test
      public void testValidateOnCommitToParent() {
          context.setValidatingObjectsOnCommit(true);
  
          ObjectContext childContext = runtime.newContext(context);
          assertTrue(
                  "Child context must have inherited the validation flag from parent",
                  ((DataContext) childContext).isValidatingObjectsOnCommit());
  
          Artist a1 = childContext.newObject(Artist.class);
          try {
              childContext.commitChangesToParent();
              fail("No validation was performed");
          }
          catch (ValidationException e) {
              // expected
          }
  
          assertFalse(context.hasChanges());
  
          a1.setArtistName("T");
          childContext.commitChangesToParent();
      }
  }
  