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);
