Struts2 Junit4 tests accumulate JSON responses with every action execution

问题

I've written a few Junit4 tests, which looks like this :

public class TestCampaignList extends StrutsJUnit4TestCase<Object> {

    public static final Logger LOG = Logger.getLogger(TestCampaignList.class.getName());

    @Before
    public void loginAdmin() throws ServletException, UnsupportedEncodingException {
        request.setParameter("email", "nitin.cool4urchat@gmail.com");
        request.setParameter("password", "22");
        String response = executeAction("/login/admin");
        System.out.println("Login Response :  " + response);
    }

    @Test
    public void testList() throws Exception {
        request.setParameter("iDisplayStart", "0");
        request.setParameter("iDisplayLength", "10");
        String response = executeAction("/campaign/list");
        System.out.println("Reponse : " + response);

    }
}

Both actions return JSON results and executeAction javadoc says :

For this to work the configured result for the action needs to be FreeMarker, or Velocity (JSPs can be used with the Embedded JSP plugin)

Seems like it's unable to handle JSON results and hence, the second action execution shows accumulated result, such that result_for_second_action= result1 concatenate result2

Is there a solution to get the executeAction() return the actual JSON response, rather than concatenating JSON responses from all previous executions.

回答1:

This is happening because you are executing action in @Before method. In that way the setUp method of StrutsJUnit4TestCase is not getting called in between your loginAdmin and test method and you previous request parameters are passed to it again. You can call setUp method by yourself in your tests method. In your case you can actually call initServletMockObjects method to create new mock servlet objects such as request.

@Test
public void testList() throws Exception {
    setUp();
    // or 
    // initServletMockObjects();

    request.setParameter("iDisplayStart", "0");
    request.setParameter("iDisplayLength", "10");
    String response = executeAction("/campaign/list");
    System.out.println("Reponse : " + response);

}

来源：https://stackoverflow.com/questions/19957484/struts2-junit4-tests-accumulate-json-responses-with-every-action-execution