Install the nuget Moq package. Below is a simple example to create a mock for a database implementation (which is also a mock :-)).
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namespace ConsoleApp1 { using Moq; using System; using System.Collections.Generic; public interface IDAL { List<string> RetrieveBooks(); } public class DAL : IDAL { public List<string> RetrieveBooks() { return new List<string> { "a", "b", "c" }; } } public class BookManager { private IDAL _dal; public BookManager(IDAL dal) { _dal = dal; } public List<string> GetBooks() { return this._dal.RetrieveBooks(); } } class Program { static void Main(string[] args) { /* * Bookmanager with database implementation */ Console.WriteLine("Database implementation"); BookManager bmDB = new BookManager(new DAL()); bmDB.GetBooks().ForEach(i => Console.WriteLine(i)); /* * Bookmanager with a mock database */ Console.WriteLine("Database mock implementation"); var dal_mock = new Mock<IDAL>(); dal_mock.Setup(i => i.RetrieveBooks()).Returns(new List<string> { "d" }); BookManager bmMOQ = new BookManager(dal_mock.Object); bmMOQ.GetBooks().ForEach(i => Console.WriteLine(i)); } } } |
