Junit4单元测试案例

/*用于配置spring Boot中测试的环境*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = MyBlogApplication.class)
/* 开启事务，测试完成默认自动回滚，不会弄脏数据库 */
@Transactional

public class WhoHaveWhatTagsMapperTest {

    @BeforeClass
    public static void beforeClass() {
    }

    @Before
    public void setUp() throws Exception {
    }

    @After
    public void tearDown() throws Exception {
    }

    @Test
    public void insertWhoHaveWhatTags() throws Exception {
    }

    @Test
    public void selectBlogByTag() throws Exception {
    }

    @Test
    public void deleteWhoHaveWhatTags() throws Exception {
    }

}

    @Test(timeout = 2000)
    @Test(expected = Exception.class)
    public void testFactorialException() throws Exception {
        new Math().factorial(-1);
        fail("factorial参数为负数没有抛出异常");
    }