ZCW-PhoneBook/PhoneBookTest.java

import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * The test class PhoneBookTest.
 *
 * @author  (your name)
 * @version (a version number or a date)
 */
public class PhoneBookTest
{
    
    PhoneBook testObj;
    /**
     * Default constructor for test class PhoneBookTest
     */
    public PhoneBookTest()
    {
    }

    /**
     * Sets up the test fixture.
     *
     * Called before every test case method.
     */
    @Before
    public void setUp()
    {
        testObj = new PhoneBook();
    }

    /**
     * Tears down the test fixture.
     *
     * Called after every test case method.
     */
    @After
    public void tearDown()
    {
    }
    @Test
    public void testadd(){
     String expected = "4545666667"; 
     //PhoneBook phoneBook = new PhoneBook();
     testObj.add("john",expected);
     String actual = testObj.lookUp("john");
     assertEquals(actual, expected);
    }
    @Test
    public void testremoveAndLookUp(){
    String expected = "5454";
    testObj.add("gei", "5454");
    assertEquals(expected,testObj.lookUp("gei"));
    
    String expectedAfterDelete = null;
    testObj.remove("gei");
    assertEquals(expectedAfterDelete, testObj.lookUp("gei"));
      
    }
    @Test
    public void testreverseLookUp(){
    String expected = "John";
    testObj.add("John", "4343");
    assertEquals(expected, testObj.reverseLookUp("4343"));
    
    
    
    }
     
    }