@Test
public void visitNodeValueIntegerNodeTest() {		

	Node n = NodeFactory.createLiteral(BigInteger.ONE.toString(), XSDDatatype.XSDinteger) ;
	NodeValue nv = new NodeValueInteger( BigInteger.ONE, n );
	nv.visit( rewriter );
	NodeValue result = rewriter.getResult();
	assertEquals( nv, result );
	assertEquals( nv.getClass(), result.getClass() );
}