How to create test classes with JUnit?

Question

Hello,
I need to test my classes with JUnit. My editor is BlueJ.
This is my class:
package model;
import java.util.*;
public class Category
    private String name;
    private List<Appointment> appointments;
    private List<ToDo> toDos;
    public Category(String name)
        this.name = name;
        appointments = new ArrayList<Appointment>();
        toDos = new ArrayList<ToDo>();
    public String getName()
        return this.name;
    public void setName(String newName)
        this.name = newName;
    public void addAppointment(Appointment a)
        appointments.add(a);
    public void removeAppointment(Appointment a)
        appointments.remove(a);
    public void addToDo(ToDo t)
        toDos.add(t);
    public void removeToDo(ToDo t)
        toDos.remove(t);
    public List<Appointment> getAppointments()
        return appointments;
    public List<ToDo> getToDos()
        return toDos;
}This is my JUnit test class code so far:
package model;
import java.util.*;
* The test class CategoryTest.
* @author  (your name)
* @version (a version number or a date)
public class CategoryTest extends junit.framework.TestCase
   private Category cat;
    protected void setUp()
        cat = new Category("Kategori");
    public void testGetAndSetName()
        assertTrue(cat.getName().equals("Kategori"));
        cat.setName("Kategori 2");
        assertTrue(cat.getName().equals("Kategori 2"));
        assertFalse(cat.getName().equals("Kategori"));
}Any hint would be appreicted.
Best regards,
Turtle

Answer 1

jonasse wrote:
Hehe:)
This is my code:
   private Category cate;
protected void setUp() {
text = new Appointment("Aftale",TimeStampGenerator.generate(1, 1, 2009), TimeStampGenerator.generate(1, 2, 2009));
cate = new Category("Aftaler");
public void testSetAndGetText() {
assertTrue(text.getText().equals("Aftale"));
text.setText("Andre aftaler");
assertTrue(text.getText().equals("Andre aftaler"));
public void testSetAndGetCategory()
assertTrue(text.getText().equals("Aftale"));
text.setText("Andre Aftaler");
assertFalse(text.getText().equals("Aftale"));
     public void testGetAndSetStartTime() {
         assertTrue(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2009)));
         text.setStartTime(TimeStampGenerator.generate(1,2,2008));
         assertTrue(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2008)));
         assertFalse(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2009)));
}The last method compiles, but I get a failure when I run the test. Says no exception message???
Thanks in advance,
JonasSo this is where TDD kicks in. Your mission - should you choose to become test-infected - is to write tests that fail, preferably even don't compile, and then write the code that makes them pass. Compilation is no guarantee the thing will work. In all honesty, that test is probably too busy. Ideally, each test case has exactly one assert in it. That way, you can know instantly what's gone wrong. If you reply "but my code can't be tested like that" it's probably time to refactor it so that it can