OrderProcesssorSpecs.cs

using SpecsFor;
public class OrderProcessorSpecs : SpecsFor<OrderProcessor>
{
	[Test]
	public void Order_submitted_successfully_Tests()
	{
		GetMockFor<IInventory>()
			.Setup(i => i.IsQuantityAvailable("TestPart", 10))
			.Returns(true)
			.Verifiable();

		var result = SUT.Process(new Order {PartNumber = "TestPart", Quantity = 10});

		result.WasAccepted.ShouldBeTrue();

		GetMockFor<IInventory>().Verify();

		GetMockFor<IPublisher>()
			.Verify(p => p.Publish(It.Is<OrderSubmitted>(o => o.OrderNumber == result.OrderNumber)));
	}
}