A JUnit 4 Test class

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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());     } }