Spring Transactional Parameterized Test and Autowiring

Question

Is there a way to get a class that extends AbstractTransactionalJUnit4SpringContexts to play nicely with JUnit's own @RunWith(Parameterized.class), so that fields marked as Autowired get wired in properly?

@RunWith(Parameterized.class)
public class Foo extends AbstractTransactionalJUnit4SpringContextTests {

    @Autowired private Bar bar

    @Parameters public static Collection<Object[]> data() {
        // return parameters, following pattern in
        // http://junit.org/apidocs/org/junit/runners/Parameterized.html
    }

    @Test public void someTest(){
        bar.baz() //NullPointerException
    }
}

Answer 1

See http://jira.springframework.org/browse/SPR-5292 There is a solution.

Answer 2

You can use a TestContextManager from Spring. In this example, I'm using Theories instead of Parameterized.

@RunWith(Theories.class)
@ContextConfiguration(locations = "classpath:/spring-context.xml")
public class SeleniumCase {
  @DataPoints
  public static WebDriver[] drivers() {
    return new WebDriver[] { firefoxDriver, internetExplorerDriver };
  }

  private TestContextManager testContextManager;

  @Autowired
  SomethingDao dao;

  private static FirefoxDriver firefoxDriver = new FirefoxDriver();
  private static InternetExplorerDriver internetExplorerDriver = new InternetExplorerDriver();

  @AfterClass
  public static void tearDown() {
    firefoxDriver.close();
    internetExplorerDriver.close();
  }

  @Before
  public void setUpStringContext() throws Exception {
    testContextManager = new TestContextManager(getClass());
    testContextManager.prepareTestInstance(this);
  }

  @Theory
  public void testWork(WebDriver driver) {
    assertNotNull(driver);
    assertNotNull(dao);
  }
}

I found this solution here : How to do Parameterized/Theories tests with Spring