C# library to populate object with random data [closed]

Bogus

Bogus is a simple and sane fake data generator for C# and .NET. A C# port of faker.js and inspired by FluentValidation’s syntax sugar. Supports .NET Core.

Setup

public enum Gender
{
   Male,
   Female
}

var userIds = 0;

var testUsers = new Faker<User>()
    //Optional: Call for objects that have complex initialization
    .CustomInstantiator(f => new User(userIds++, f.Random.Replace("###-##-####")))

    //Basic rules using built-in generators
    .RuleFor(u => u.FirstName, f => f.Name.FirstName())
    .RuleFor(u => u.LastName, f => f.Name.LastName())
    .RuleFor(u => u.Avatar, f => f.Internet.Avatar())
    .RuleFor(u => u.UserName, (f, u) => f.Internet.UserName(u.FirstName, u.LastName))
    .RuleFor(u => u.Email, (f, u) => f.Internet.Email(u.FirstName, u.LastName))
    //Use an enum outside scope.
    .RuleFor(u => u.Gender, f => f.PickRandom<Gender>())
    //Use a method outside scope.
    .RuleFor(u => u.CartId, f => Guid.NewGuid());

Generate

var user = testUsers.Generate();
Console.WriteLine(user.DumpAsJson());

/* OUTPUT:
{
  "Id": 0,
  "FirstName": "Audrey",
  "LastName": "Spencer",
  "FullName": "Audrey Spencer",
  "UserName": "Audrey_Spencer72",
  "Email": "Audrey82@gmail.com",
  "Avatar": "https://s3.amazonaws.com/uifaces/faces/twitter/itstotallyamy/128.jpg",
  "Gender": 0,
  "CartId": "863f9462-5b88-471f-b833-991d68db8c93", ....

Without Fluent Syntax

  public void Without_Fluent_Syntax()
  {
      var random = new Bogus.Randomizer();
      var lorem = new Bogus.DataSets.Lorem();
      var o = new Order()
          {
              OrderId = random.Number(1, 100),
              Item = lorem.Sentence(),
              Quantity = random.Number(1, 10)
          };
      o.Dump();
  }
  /* OUTPUT:
  {
    "OrderId": 61,
    "Item": "vel est ipsa",
    "Quantity": 7
  } */