package apifest;

 import junit.framework.TestCase;

 import org.netbeans.apifest.boolcircuit.Circuit;

 /** Write a test that works with version from day A and fails with version B.

  */

 // BEGIN: apifest.day3.against-elementbasedsolution

 public class CircuitTest extends TestCase {

     public CircuitTest(String n) {

         super(n);

     }

     /**

      * OK, elementbasedsolution looked bulletproof. Every code path 

      * was exactly the same as in the initial version. Except one.     

      */

     public void testEvaluateWithoutAssign() throws Exception {

         Circuit.Variable var = Circuit.var();

         Circuit.Element circuit = Circuit.not(var);

         assertTrue (circuit.result());

     }

 }

 // END: apifest.day3.against-elementbasedsolution