I get a 404 error when testing forms authentication with Spring Security

Overview

When I tested forms authentication with the following configuration in Spring Security, a 404 error occurred.

                       POST 
            --------------------------------->
 Form screen AuthenticationProvider
 ·username
 ・ Password <=================================
 User information

SecurityConfig.java

@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    public void configure(WebSecurity web) {
        web.ignoring().antMatchers("/webjars/**", "/css/");
    }

    @Override
    protected void configure(HttpSecurity http) {
        http.authorizeRequests()
                .antMatchers("signin").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin()
                .loginProcessingUrl("/authentication")
                .loginPage("signin")
                .failureUrl("signin" + "?error")
                .successForwardUrl("/hoge/list")
                .failureForwardUrl("/authenticationError")
                .usernameParameter("username")
                .passwordParameter("password")
                .and()
                .logout()
                .logoutSuccessUrl("signin");

}

TestClass.java

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ContextConfiguration(classes = HogeApplication.class)
public class TestClass {

    @Before
public void Prepare request() {
        mvc = MockMvcBuilders
                .webAppContextSetup(context)
                .build();
    }

    @Test
public void Authenticate with request URL() throws Exception {
        ResultActions result = mvc.perform(
                MockMvcRequestBuilders.post("/authentication")
                .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                .param("username",User account)
                .param("password",password)
        );
        result.andExpect(status().isOk())
                .andExpect(forwardedUrl("/hoge/list"));
    }
}

 Assertion results

java.lang.AssertionError: Status 
Expected :200
Actual   :404

Workaround

Take the following two workarounds.

• Specify csrf () on request
• Apply springSecurity () to MockMvcBuider

Applying the above, the test class will be as follows.

TestClass.java

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
@ContextConfiguration(classes = HogeApplication.class)
public class TestClass {

    @Before
public void Prepare request() {
        mvc = MockMvcBuilders
                .webAppContextSetup(context)
                .apply(springSecurity()) //If this is not applied, even if csrf is set, it will be 404.
                .build();
    }

    @Test
public void Authenticate with request URL() throws Exception {
        ResultActions result = mvc.perform(
                MockMvcRequestBuilders.post("/authentication")
                .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                .with(csrf())
                .param("username",User account)
                .param("password",password)
        );
        result.andExpect(status().isOk())
                .apply(springSecurity()) //If this is not applied, even if csrf is set, it will be 404.
                .andExpect(forwardedUrl("/hoge/list"));
    }
}

About form settings

Official documentation also mentions csrf (), but explicitly post The username and password did not pass to the server side in the following implementation without requesting. There may be something wrong, but I don't know. .. ..

TestClass.java

public class TestClass {
Methods that do not pass the public parameter() {
        ResultActions result2 = mvc.perform(formLogin("/authentication")
                .user(User account).password(password));
        result2.andExpect(status().isOk())
                .andExpect(forwardedUrl("/clients/list"))
                .andDo(MockMvcResultHandlers.print());
        ResultActions result3 = mvc.perform(MockMvcRequestBuilders.post("/authentication")
                .contentType(MediaType.APPLICATION_FORM_URLENCODED)
                .with(csrf())
                .with(user(User account).password(password)));
        result3.andExpect(status().isOk())
                .andExpect(forwardedUrl("/clients/list"))
                .andDo(MockMvcResultHandlers.print());
    }
}

The result was the same with csrf (). AsHeader ().

Apply springSecurity

If springSecurity () is not applied, it will be 404 even if csrf () is set in MockMvcRequestBuilders # post.