public void CanNotUserWithExistingUserName()
{
_ = system.RegisterUser("Carlos", "irrelevant-1", "");
var exception = Assert.Throws <InvalidOperationException>(
() => system.RegisterUser("Carlos", "irrelevant-2", ""));
Assert.Equal(OpenChatSystem.MSG_USER_NAME_ALREADY_IN_USE, exception.Message);
Assert.Equal(1, system.RegisterUsersCount());
}
public ObjectResult RegisterUser([FromBody] RegistrationRequest request)
{
return(DispatchRequest(
() => system.RegisterUser(request.username, request.password, request.about),
(user) => new CreatedResult($"/openchat/users/{user.Id}", new UserResult(user))));
}