在Spring MVC应用程序中使用Selenium WebDriver进行前端测试

Question

I am working on spring mvc application and trying to test my front end as well as integration test between controller and front end using selenium web driver taking a reference from Spring MVC test with WebDriver . This blog suggest to use MockMvcHtmlUnitDriver as a web driver implementation in order to run front end test with spring mvc without deploying to server. The MVC works totally fine and MockMvcHtmlUnitDriver also handles request perfectly, but it doesn't gets the front end page.

Here, is a code i wrote for a test:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:application-context.xml")
@WebAppConfiguration
public class WebDriverDemoTest {

@Autowired
private WebApplicationContext context;

private WebDriver driver;

@Before
public void setup() throws Exception {
    MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(context).build();

    this.driver = new MockMvcHtmlUnitDriver(mockMvc, true);
}

@Test
public void testFormCreation() {

    this.driver.get("http://localhost:8080/wddemo/demo");
    System.out.println(" - Page Title: " + this.driver.getTitle());
}}

Here, you can see I am trying to get the page title, but these results as null.

Log of test case:

10:55:59,031 DEBUG TestDispatcherServlet:1218 - Rendering view      [org.springframework.web.servlet.view.JstlView: name 'spring'; URL [/spring.jsp]] in DispatcherServlet with name ''
10:55:59,038 DEBUG JstlView:207 - Forwarding to resource [/spring.jsp] in InternalResourceView 'spring'
10:55:59,039 DEBUG MockRequestDispatcher:67 - MockRequestDispatcher: forwarding to [/spring.jsp]
10:55:59,039 DEBUG TestDispatcherServlet:991 - Successfully completed request
 - Page Title: null

In this log, you can see mvc is handled perfectly, but web driver is not getting page. However, deploying in server and using HtmlUnitDriver works perfectly as expected.

Do you guys see any problem with this?

Answer 1

I can see from your debug that you are using JSPs.

From the part 1 of the blog article you referenced:

NOTE: Just as with Spring MVC Test, the HtmlUnit integration will work with templating technologies that do not rely on a Servlet Container (ie Thymeleaf, Freemarker, Velocity, etc). It does not work with JSPs since they rely on the Servlet Container.