ZCW-PhoneBook/PhoneBookTest.java

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

public class PhoneBookTest
{
    @Test
    public void testAdd(){
        PhoneBook phonebook = new PhoneBook();
        String expected = "1234567890"; 
        phonebook.add("tyler",expected);
        String actual = phonebook.lookUp("tyler");
        assertEquals(actual, expected);

    }

    @Test
    public void testLookUp(){
        PhoneBook phonebook = new PhoneBook();
        String expected = "1234567890";
        phonebook.add("tyler", expected);
        String actual = phonebook.lookUp("tyler");
        assertEquals(expected, actual);
    }

    @Test
    public void testReverse(){
        PhoneBook phonebook = new PhoneBook();
        String expected = "tyler";
        phonebook.add("tyler", "1234567890");
        String actual = phonebook.reverseLookUp("1234567890");
        assertEquals(expected, actual);
    }

}