### Question:
Or extends ERE { @Override public EREType getEREType() { return EREType.OR; } private  Or(List<ERE> children); static ERE get(List<ERE> children); ERE simplify(); @Override EREType getEREType(); @Override String toString(); @Override ERE copy(); @Override boolean containsEpsilon(); @Override ERE derive(Symbol s);  }### Answer:
@Test public void testEREType() { assertEquals(EREType.OR, aOrb.getEREType()); }