public void TestAllToppings()
{
//Arrange
string test = "test";
string prepareString = $"We are preparing the following drink for you: {test} with milk with sugar with chocolate";
var mockDrink = mockRepository.Create <IDrink>();
mockDrink.SetupGet(m => m.HasSugar).Returns(true);
mockDrink.SetupGet(m => m.Description).Returns(test);
var mockMilk = mockDrink.As <IMilkDrink>();
mockMilk.SetupGet(m => m.HasMilk).Returns(true);
var mockChoco = mockMilk.As <IChocolateDrink>();
mockChoco.SetupGet(m => m.HasChocolate).Returns(true);
mockLogger.Setup(m => m.WriteToConsole(prepareString));
//Act
Preparer.Prepare(mockChoco.Object);
//Assert
mockLogger.Verify(m => m.WriteToConsole(prepareString), Times.Once);
}