Hi, I'm trying to unit test a common interface used in a generic Repository, something like T GetWhere(Func<T, Boolean> where)...
When I set this expectation in a test
JustMock throws this exception: "Telerik.JustMock.MockAssertionException: Setup contains calls that are marked as "MustBeCalled" but actually never called"
It seems the GetWhere() method was never call, to return the expected object.
Below is a simple example that illustrate the case.
How should I rewrite the second test below so that I can mock and test these type of interfaces?
Thanks in advance.
using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Telerik.JustMock; //Free version 2011.1.331.1
using Model.Infrastructure;
using Model;
namespace Model.Infrastructure
{
public interface IRepository<T> where T : class
{
T GetById(int Id);
T GetWhere(Func<T, Boolean> where);
}
}
namespace Model
{
public class Book
{
public int Id { get; set; }
public string BookTitle { get; set; }
public string OnLoanTo { get; set; }
public Book(){}
}
public class BookService
{
private IRepository<Book> _bookRepository;
public BookService(IRepository<Book> bookRepository)
{
this._bookRepository = bookRepository;
}
public Book GetSingleBook1(int bookId)
{
return _bookRepository.GetById(bookId);;
}
public Book GetSingleBook2(int bookId)
{
Book b = _bookRepository.GetWhere(x => x.Id == bookId);
return b;
}
}
}
namespace Model.Tests
{
[TestClass]
public class AssortedTests
{
private Book expectedBook;
private IRepository<Book> bookRepo;
private BookService bookService;
[TestInitialize]
public void Setup()
{
expectedBook = new Book()
"Adventures",
"John Smith"
bookRepo = Mock.Create<IRepository<Book>>();
bookService = new BookService(bookRepo);
}
[TestMethod]
public void Book_CanRetrieveBookFromRepository()
{
Mock.Arrange(() => bookRepo.GetById(1))
.Returns(expectedBook)
.MustBeCalled();
//Act
Book actualBook = bookService.GetSingleBook1(1);
Mock.Assert(bookRepo); //Pass...
Assert.IsTrue(actualBook.BookTitle == "Adventures");
}
[TestMethod]
public void Book_CanRetrieverFromRepositoryUsingLambdaExpressions()
{
Mock.Arrange(() => bookRepo.GetWhere(book => book.Id == 1))
.Returns(expectedBook)
.MustBeCalled();
//Act
Book actualBook = bookService.GetSingleBook2(1);
Mock.Assert(bookRepo); //Throws the error...
Assert.IsTrue(actualBook.BookTitle == "Adventures");
}
}
}