## Why is this an issue?

The Spring framework comes with dedicated classes to help writing better and simpler unit tests. In particular, when testing applications built on top of Spring MVC, it is recommended to use Spring’s `ModelAndViewAssert` assertions class, instead of manually testing MVC’s properties.

This rule raises an issue when Spring’s `ModelAndViewAssert` assertions should be used instead of manual testing.

### Noncompliant code example

    ModelAndView mav = getMyModelAndView();

    Assert.assertEquals("register", mav.getViewName());
    Assert.assertTrue((Boolean) mav.getModelMap().get("myAttribute"));
    Assert.assertFalse((Boolean) mav.getModelMap().get("myAttribute"));
    Assert.assertEquals(myObject, mav.getModelMap().get("myAttribute"));

### Compliant solution

    ModelAndView mav = getMyModelAndView();

    ModelAndViewAssert.assertViewName(mav, "register");
    ModelAndViewAssert.assertModelAttributeValue(mav, "myAttribute", Boolean.TRUE);
    ModelAndViewAssert.assertModelAttributeValue(mav, "myAttribute", Boolean.FALSE);
    ModelAndViewAssert.assertModelAttributeValue(mav, "myAttribute", myObject);

## Resources

- Unit Testing Spring MVC
- ModelAndViewAssert Javadoc