public void AddMenuItem_Should_Add_MenuItem()
{
//Arrange
var testMenuItems = new List <MenuItem>();
_mockMenuRepo.Setup(r => r.Add(It.IsAny <MenuItem>()))
.Callback <MenuItem>(m => testMenuItems.Add(m));
_mockMenuRepo.Setup(r => r.GetAll()).Returns(testMenuItems);
var menuManager = new MenuManager(_mockUnitOfWork.Object);
//Act
menuManager.AddMenuItem(new MenuItemDto());
var testItemsCount = menuManager.GetMenuItems().Count();
//Assert
Assert.IsTrue(testItemsCount == 1);
}