final ConstraintNode c1 = new ConstraintNodeImpl( "Person",
"bigIntegerField",
"==",
new BigIntegerValue( new BigInteger( "1000000" ) ) );
model.setRoot( type );
type.addChild( c1 );
final String drl = GuidedDecisionTreeDRLPersistence.getInstance().marshal( model );
assertEqualsIgnoreWhitespace( expected,
drl );
}