public void SetupContext()
{
fileName = "products.xml";
mapper = MockRepository.GenerateMock <IProductMapper>();
fileLoader = MockRepository.GenerateMock <IFileLoader>();
repository = new ProductRepository(fileLoader, mapper);
// Arrange
var xmlFragment = "<product id='1' name='xyz' unitPrice='10.44' discontinued='true' />";
var ms = new MemoryStream();
var writer = new StreamWriter(ms);
writer.WriteLine("<products>");
writer.WriteLine(xmlFragment);
writer.WriteLine(xmlFragment);
writer.WriteLine("</products>");
writer.Flush();
ms.Position = 0;
fileLoader.Stub(x => x.Load(fileName)).Return(ms);
}