public void test_SpeciesReference_Modifier_parent_add()
{
ModifierSpeciesReference sr = new ModifierSpeciesReference(2,4);
sr.setSpecies("s");
Reaction r = new Reaction(2,4);
r.addModifier(sr);
sr = null;
ListOf lo = r.getListOfModifiers();
assertTrue( lo == r.getModifier(0).getParentSBMLObject() );
assertTrue( r == lo.getParentSBMLObject() );
}