public void test_UnitDefinition_parent_NULL()
{
SBMLDocument d = new SBMLDocument();
Model m = d.createModel();
UnitDefinition c = m.createUnitDefinition();
Unit u = c.createUnit();
assertTrue(u.getAncestorOfType(libsbml.SBML_UNIT_DEFINITION) == c);
UnitDefinition c1 = c.clone();
d = null;
assertTrue(c1.getAncestorOfType(libsbml.SBML_MODEL) == null);
assertTrue(c1.getParentSBMLObject() == null);
assertEquals(c1.getSBMLDocument(), null);
assertTrue(c1.getUnit(0).getAncestorOfType(libsbml.SBML_UNIT_DEFINITION) == c1);
assertTrue(c1.getUnit(0).getParentSBMLObject() != null);
assertEquals(c1.getUnit(0).getSBMLDocument(), null);
c1 = null;
}