question: test retrieval of account by string - userid , with no account found . concode_field_sep MockMvc mockMvc concode_elem_sep AccountService service concode_elem_sep AccountRepository repo concode_field_sep void doFindAccountByAuthTokenNull concode_elem_sep void testLogout concode_elem_sep void doFindAccountUserId concode_elem_sep void saveAccountWithNullCounts concode_elem_sep void doFindNullAccount concode_elem_sep void testAccountObject concode_elem_sep void testLogin concode_elem_sep void saveAccount concode_elem_sep void doFindAccount concode_elem_sep void doFindNullAccountByAuthToken concode_elem_sep void testLoginNull concode_elem_sep void testLogoutNull concode_elem_sep void setup concode_elem_sep void doFindAccountByAuthToken
target: void function ( ) { when ( repo . findByUserid ( ServiceTestConfiguration . BAD_USER_ID ) ) . thenReturn ( null ) ; service . findAccount ( ServiceTestConfiguration . BAD_USER_ID ) ; }