SpringBootTest , content() function has gone with sprint-test 5.2.6 - spring-boot

Question

I'm trying to do something similar to:
mockMvc
.perform(post("/forums/{forumId}/register", 42L)
.contentType("application/json")
.param("sendWelcomeMail", "true")
.content(objectMapper.writeValueAsString(user)))
.andExpect(status().isOk());
But the .content method has disappeared with 5.2.6, there is now what seems to be a body() function:
mockMvc
.perform(post("/conversions/ktoc")
.contentType(MediaType.APPLICATION_JSON)
.body(objectMapper.writeValueAsString(request)). /*missing method to get back to Builder*/
.andExpect(status().isOk());
Can someone assist please, all the examples I find on web all point to using content(..) method

Answer 1

There should be still the .content() method in Spring Test 5.2.6 according to the docs.
What might have happened to your code is that your import the reactive version of MockMvcRequestBuilders from org.springframework.mock.http.server.reactive.MockServerHttpRequest.post and this has indeed no .content() method but only .body().
So insure that your import the servlet version inside your test:
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.test.web.servlet.MockMvc;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
#WebMvcTest
class PublicControllerTest {
#Autowired
private MockMvc mockMvc;
#Test
public void testMe() throws Exception {
this.mockMvc
.perform(post("/test").content("Some content"))
.andExpect(status().isOk());
}
}