Junit before class ( non static )

Question

Are there any best practices to get Junit execute a function once in a test file , and it should also not be static.

like @BeforeClass on non static fun

Answer 1

The article discuss 2 very nice solutions for this problem:

1. "clean" junit with custom Runner (using interface but you could extend it with a custom annotation e.g. @BeforeInstance)
2. Spring execution listeners as mentioned by Espen before.

Answer 2

A simple if statement seems to work pretty well too:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath:test-context.xml"})
public class myTest {

    public static boolean dbInit = false;

    @Autowired
    DbUtils dbUtils;

    @Before
    public void setUp(){

        if(!dbInit){

            dbUtils.dropTables();
            dbUtils.createTables();
            dbInit = true;

        }
    }

 ...