public void CalculateBalance_having_both_Incoming_and_Outgoing_Invoices()
{
var generator = new Mock <IJobOrderNumberGenerator>();
generator
.Setup(o => o.Generate())
.Returns("101/1989");
var eventStore = new Mock <IEventStore>();
var jobOrderId = Guid.NewGuid();
var outgoingInvoiceId = Guid.NewGuid();
eventStore
.Setup(o => o.Find(It.IsAny <Func <OutgoingInvoiceLinkedToJobOrderEvent, bool> >()))
.Returns(new OutgoingInvoiceLinkedToJobOrderEvent[] { new OutgoingInvoiceLinkedToJobOrderEvent(outgoingInvoiceId, jobOrderId, DateTime.Now, 200) });
eventStore
.Setup(o => o.Find(It.IsAny <Func <OutgoingInvoiceIssuedEvent, bool> >()))
.Returns(new OutgoingInvoiceIssuedEvent[] { new OutgoingInvoiceIssuedEvent(outgoingInvoiceId, "42", DateTime.Now, 200, 44, 244, "fake", "fake", "", Guid.NewGuid(), "", "", "", "", "", "", "") });
var incomingInvoiceId = Guid.NewGuid();
eventStore
.Setup(o => o.Find(It.IsAny <Func <IncomingInvoiceLinkedToJobOrderEvent, bool> >()))
.Returns(new IncomingInvoiceLinkedToJobOrderEvent[] { new IncomingInvoiceLinkedToJobOrderEvent(incomingInvoiceId, jobOrderId, DateTime.Now, 100) });
eventStore
.Setup(o => o.Find(It.IsAny <Func <IncomingInvoiceRegisteredEvent, bool> >()))
.Returns(new IncomingInvoiceRegisteredEvent[] { new IncomingInvoiceRegisteredEvent(incomingInvoiceId, "42", DateTime.Now, 100, 22, 122, "fake", "fake", "", Guid.NewGuid(), "", "", "", "", "", "", "") });
decimal balance = JobOrder.CalculateBalance(eventStore.Object, jobOrderId);
decimal expected = 100;
Assert.AreEqual(expected, balance);
}