1    package demo;
2    
3    import org.junit.Before;
4    import org.junit.Test;
5    import static org.junit.Assert.*;
6    
7    public class FooTest {
8        Foo obj;
9    
10       @Before
11       public void setup() {
12           obj = new Foo();
13       }
14   
15       @Test
16       public void testBarNonNegativeNumber() {
17           String result = obj.bar(0);
18           assertEquals("bar did not return \"baz\"", "baz", result);
19       }
20   
21       @Test(expected=IllegalArgumentException.class)
22       public void testBarNegativeNumber() {
23   
24           obj.bar(-1);
25       }
26   }
27