public void testStateCommittedToModified() {
DataContext context = createDataContext();
Artist o1 = new Artist();
o1.setArtistName("a");
context.registerNewObject(o1);
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, o1.getPersistenceState());
o1.setArtistName(o1.getArtistName() + "_1");
assertEquals(PersistenceState.MODIFIED, o1.getPersistenceState());
}