package lrs.visitor.test;

import junit.framework.TestCase;
import lrs.*;
import lrs.visitor.*;


/**
 * A JUnit test case class.
 * Every method starting with the word "test" will be called when running
 * the test with JUnit.
 */
public class TestUnzip extends TestCase {
    private static IAlgo unzip = Unzip.Singleton;
    
    /**
     */
    public void testEmptyCase() {
        LRStruct l1 = new LRStruct();
        System.out.println("Before unzipping l1 = " + l1);
        System.out.println ("Unzipping l1 returns: " + l1.execute(unzip));
        System.out.println("After unzipping l1 = " + l1);
        System.out.println();
    }
    
    /**
     */
    public void testNonEmptyCase() {
        LRStruct l1 = new LRStruct();
        l1.insertFront(263);
        System.out.println("Before unzipping l1 = " + l1);
        System.out.println ("Unzipping l1 returns: " + l1.execute(unzip));
        System.out.println("After unzipping l1 = " + l1);
        System.out.println();
        l1.insertFront(15);
        System.out.println("Before unzipping l1 = " + l1);
        System.out.println ("Unzipping l1 returns: " + l1.execute(unzip));
        System.out.println("After unzipping l1 = " + l1);
        System.out.println();
        l1.insertFront(-9);
        l1.insertFront(-72);
        System.out.println("Before unzipping l1 = " + l1);
        System.out.println ("Unzipping l1 returns: " + l1.execute(unzip));
        System.out.println("After unzipping l1 = " + l1);
        System.out.println();
        l1.insertFront(0);
        l1.insertFront(55);
        System.out.println("Before unzipping l1 = " + l1);
        System.out.println ("Unzipping l1 returns: " + l1.execute(unzip));
        System.out.println("After unzipping l1 = " + l1);
        System.out.println();
    }
}