use MockMvc to test, it shows Forbidden - spring

Question

I read the book 'Spring Security in action'.
In the 7th chapter, a sample uses the HTTP Basic authentication and has some authorities filter.
#Configuration
#Slf4j
public class SecurityConfig {
#Bean
public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
http.httpBasic();
http.authorizeHttpRequests()
.anyRequest()
.hasAuthority("select");
return http.build();
}
#Bean
public UserDetailsService userDetailsService(DataSource dataSource) {
String usersByUsernameQuery = "select username, password, enabled from users where username = ? ";
String authsByUsernameQuery = "select username, authority from authorities where username = ? ";
var userDetailManager = new JdbcUserDetailsManager(dataSource);
userDetailManager.setUsersByUsernameQuery(usersByUsernameQuery);
userDetailManager.setAuthoritiesByUsernameQuery(authsByUsernameQuery);
return userDetailManager;
}
#Bean
public PasswordEncoder passwordEncoder() {
return PasswordEncoderFactories.createDelegatingPasswordEncoder();
}
}
I have a unit test as below ...
#SpringBootTest
#AutoConfigureMockMvc
#Slf4j
class HelloControllerTest {
#Autowired
private MockMvc mockMvc;
#Test
void sayName() throws Exception {
this.mockMvc.perform(
get("/hello/say/jessie")
.with(user("john").password("p#ssw0rd"))
)
.andDo(print())
.andExpect(status().isOk())
.andExpect(content().string(containsString("jessie")));
}
}
In my database, there is the user john and his password is p#ssw0rd and he has 'select' authority.
The unit test can pass authentication, but it shows 'Forbidden'. In the table Authorities, there is a record - username = 'john' and authority = 'select'.
So I don't know what happened. Why can it pass authorication, bue it can't pass authorization?