Is there a way to use AssertJ assertions with Spring MVC Test?

Question

I have been using AssertJ for some time in my projects. Recently I started using Spring MVC Test for testing Spring MVC controllers.

But I am not getting how to use AssertJ with it. All examples I see online all use Hamcrest with Spring MVC Test.

Below is an example using the Hamcrest API.

mockMvc
                .perform(get("/user?operation=userList"))
                .andExpect(status().isOk())
                .andExpect(model().attribute(UserController.MODEL_ATTRIBUTE_USER_LIST, userList))
                .andExpect(view().name(UserController.VIEW_USER_LIST))
                .andExpect(model().attribute(UserController.MODEL_ATTRIBUTE_USER_LIST, hasSize(2)))
                .andExpect(model().attribute(UserController.MODEL_ATTRIBUTE_USER_LIST, hasItem(
                        allOf(
                                hasProperty("id", is(1L)),
                                hasProperty("description", is("Lorem ipsum")),
                                hasProperty("title", is("Foo"))
                        )
                )))
                .andExpect(model().attribute(UserController.MODEL_ATTRIBUTE_USER_LIST, hasItem(
                        allOf(
                                hasProperty("id", is(2L)),
                                hasProperty("description", is("Lorem ipsum")),
                                hasProperty("title", is("Bar"))
                        )
                )));

Sam Brannen · Accepted Answer · 2018-03-24T14:56:18.727

Update

If you would like to vote for inclusion of support for AssertJ assertions with MockMvc, please see the related Spring JIRA issue: SPR-16637.

Generally speaking, you may choose whatever assertion framework you like when testing with Spring.

However, the particular scenario you are describing involves the API of the Spring MVC Test framework. The methods in question are designed to be used with the Hamcrest Matcher API. It is therefore not possible to use AssertJ within those method calls.

Regards,

Sam (author of the Spring TestContext Framework)

Nikolaos Georgiou · Answer 2 · 2019-01-29T08:23:25.430

3

I've put together a library that offers AssertJ assertions for MockMvc but also for ResponseEntity (returned by TestRestTemplate): https://github.com/ngeor/yak4j-spring-test-utils

edited Jan 29 '19 at 08:23

answered Jan 28 '19 at 20:39

Nikolaos Georgiou

2,792
1
26
32

score 1 · Answer 3 · answered Apr 20 '16 at 21:48

There has recently been an issue raised on the Spring Boot project to discuss adding support for AssertJ assertions with MockMvc, it might be worth keeping an eye on it. You can view the issue here: https://github.com/spring-projects/spring-boot/issues/5729

It looks like the initial concept created by Phil Webb involves wrapping the MockMvc to provide support for AssertJ assertions.

Is there a way to use AssertJ assertions with Spring MVC Test?

3 Answers3

Linked