A JUnit 4 Test class

package infotool;

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

public class InfoModelTest {

    private InfoModel instance;

    @Before
    public void setUp() {
        instance = new InfoModel();
    }

    /**
     * Test of getMessage method, of class InfoModel.
     */
    @Test
    public void testGetMessage() {
        assertEquals("welcome to mvc", instance.getMessage());
    }

    /**
     * Test of getWeather method, of class InfoModel.
     */
    @Test
    public void testGetWeather() {
        assertEquals("Sunny", instance.getWeather());
    }

    /**
     * Test of setMessage method, of class InfoModel.
     */
    @Test
    public void testSetMessage() {
        String wthString = "JUnit @Rules";
        instance.setMessage(wthString);
        assertEquals(wthString, instance.getMessage());
    }

    /**
     * Test of setWeather method, of class InfoModel.
     */
    @Test
    public void testSetWeather() {
        String wthString = "It's going to rain";
        instance.setWeather(wthString);
        assertEquals(wthString, instance.getWeather());
    }

    /**
     * Test of addModelChangeListener method, of class InfoModel.
     */
    @Test
    public void testAddModelChangeListener() {
        InfoModel instance = new InfoModel();
        InfoView view = new InfoViewTestSupport(instance);
        instance.addModelChangeListener(view);
        instance.setMessage("From testAddModelChangeListener");
        assertTrue(((InfoViewTestSupport) view).getNotification());
    }
}