在spring中使用Authentication类测试控制器

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

import org.junit.Test;
import org.mockito.Mockito;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.test.context.support.WithMockUser;
import org.springframework.security.test.context.support.WithSecurityContext;
import org.springframework.security.test.context.support.WithSecurityContextFactory;
import org.springframework.security.test.context.support.WithUserDetails;
import org.springframework.security.test.context.support.WithUserDetailsSecurityContextFactory;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.authentication;
import static org.springframework.security.test.web.servlet.request.SecurityMockMvcRequestPostProcessors.user;

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class UserControllerTest {

    @Autowired
    private WebApplicationContext webApplicationContext;

    @Autowired
    private MockMvc mockMvc;

    @Before
    public void setup() {
        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
    }

    @Test
    @WithMockUser(username="testuser", roles={"USER"})
    public void testGetUser() throws Exception {
        // 模拟认证信息
        Authentication authentication = Mockito.mock(Authentication.class);
        Mockito.when(authentication.isAuthenticated()).thenReturn(true);
        SecurityContextHolder.getContext().setAuthentication(authentication);

        // 调用控制器方法
        mockMvc.perform(get("/user").with(authentication(authentication)))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.username").value("testuser"));
    }
}