public void testCell() throws Exception {
final Cell cell1 = new Cell( 9 );
final Cell cell = new Cell( 0 );
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "evalmodify.drl" ) ) );
final RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( builder.getPackage() );
final WorkingMemory memory = ruleBase.newStatefulSession();