public void when_publishing_null_as_inception_message_it_should_fail()
{
var publisher = new VentureMessagePublisher(new FakeMessageRouter());
// ReSharper disable once AssignNullToNotNullAttribute - it's a test against null.
Func <Task> sut = () => publisher.PublishInceptionMessage <object>(message: null, DateTimeOffset.UtcNow);
sut.Should().Throw <ArgumentNullException>().Where(exception => exception.ParamName.Equals("message"), "message should be specified");
}
public async Task when_publishing_inception_message_it_should_assign_proper_message_ids()
{
var messageRouter = new FakeMessageRouter();
var sut = new VentureMessagePublisher(messageRouter);
var message = new object();
await sut.PublishInceptionMessage(message, DateTimeOffset.UtcNow);
messageRouter.Message.Should().BeSameAs(message, "it should pass message without changes");
messageRouter.MessageId.Should().NotBeNullOrWhiteSpace("it should generate message ID");
messageRouter.CorrelationId.Should().Be(messageRouter.MessageId, "correlation ID and message ID should be the same");
messageRouter.CausationId.Should().Be(messageRouter.MessageId, "causation ID and message ID should be the same");
}