public static UserRegisterModel WithUsernameEmpty()
 {
     return(UserRegisterModelExtensions.WithUsername(Default(), ""));
 }
 public static UserRegisterModel WithUsernameHavingMoreThan50Characters()
 {
     return(UserRegisterModelExtensions.WithUsername(Default(), "supertestersupertestersupertestersupertestersupertestersupertestersupertester"));
 }
 public static UserRegisterModel WithUsernameNull()
 {
     return(UserRegisterModelExtensions.WithUsername(Default(), null));
 }