By installing Microsoft.AspNetCore.Identity and System.ComponentModel.DataAnnotations, I believe you are able to compile the following —nearly— self-contained code:
using Microsoft.AspNetCore.Identity;
using System.ComponentModel.DataAnnotations;
namespace PlayGround
{
public class SignupViewModel
{
[Required]
[DataType(DataType.Text)]
[Display(Name = "Name")]
public string? Name { get; set; }
[Required]
[RegularExpression("^
\\+
?(\\d{1,3})?[-.\\s]?(
\\(
?\\d{3}
\\)
?[-.\\s]?)?(\\d[-.\\s]?){6,9}\\d$|(^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+
\\.
[A-Za-z]{2,}$)", ErrorMessage = "Please enter a valid email address or phone number")]
[Display(Name = "Email or phone number")]
public string? EmailOrPhoneNumber { get; set; }
[Required]
[StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string? Password { get; set; }
[Required]
[DataType(DataType.Password)]
[Display(Name = "Confirm password")]
[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string? ConfirmPassword { get; set; }
}
public record RegistrationResult(bool IsSucceeded, List<string> Errors);
public class ApplicationUser : IdentityUser
{
}
public interface IAccount
{
public Task<RegistrationResult> RegisterUser(SignupViewModel SignupInput);
}
public class UserAccount : IAccount
{
private readonly IUserStore<ApplicationUser> _userStore;
private readonly UserManager<ApplicationUser> _userManager;
public UserAccount(IUserStore<ApplicationUser> userStore,
UserManager<ApplicationUser> userManager)
{
_userManager = userManager;
_userStore = userStore;
}
// HOW TO TEST THE `RegisterUser` METHOD ALONE WITHOUT RUNNING THE WHOLE APPLICATION ?
// I WANT TO TRIGGER ALL THE PATHES OF THE `RegisterUser` METHOD TO VERIFY THAT EACH PATH IS TRIGGERED WHEN IT IS NEEDED.
public async Task<RegistrationResult> RegisterUser(SignupViewModel SignupInput)
{
// PATH 1
var validationContext = new ValidationContext(SignupInput);
var results = new List<ValidationResult>();
bool valid = Validator.TryValidateObject(SignupInput, validationContext, results, validateAllProperties: true);
if (!valid)
{
// PATH 2
return new RegistrationResult(false, ["The sent data is not valid"]);
}
ApplicationUser user = new ApplicationUser();
await _userStore.SetUserNameAsync(user, SignupInput.Name, CancellationToken.None);
if (!(_userManager.SupportsUserEmail))
{
//PATH 3
throw new NotSupportedException("user manager does not support user email");
}
var _emailStore = (IUserEmailStore<ApplicationUser>)_userStore;
await _emailStore.SetEmailAsync(user, SignupInput.EmailOrPhoneNumber, CancellationToken.None);
var result = await _userManager.CreateAsync(user, SignupInput.Password);
List<IdentityError> identityErrors = result.Errors.ToList();
if (identityErrors.Count != 0)
{
//PATH 4
List<string> errorsStrings = new List<string>();
foreach (IdentityError identityError in identityErrors)
{
errorsStrings.Add(identityError.Description);
}
return new RegistrationResult(false, errorsStrings);
}
await _userManager.AddToRoleAsync(user, "Normal-User");
return new RegistrationResult(true, []);
}
}
}
This code is a part of bigger application for sure, to test that method, I run the whole application:
dotnet watch run --launch-profile https
I'm forced to do that because the input to the RegisterUser is provided by the browser, but I will not be able to trigger all the paths inside the method if I passed the data to the method using it.
Is there a way to test this method without running the whole application so that I can provide whatever data I want to the method by bypassing the client-side and the server-side validation in order to artificially trigger all the possible paths of execution ?
An applied example would be appreciated.
EDIT :
I come across the term Unit testing a lot, I'm not sure if this is what I need.
