public void ShouldReturnHandshakeMessage()
        {
            var command = JsonStrings.HandshakeMessageIn().WithoutEnd().ToSingleString();

            var reader = Substitute.For<IReadNext>();
            reader.Next().Returns(command);

            var format = Substitute.For<IProtocolReaderFormat>();
            var setupProcess = Substitute.For<ISetupProcess>();
            format.Handshake(command).Returns(new StormHandshake(setupProcess));

            var subjectUnderTest = new StormReader(reader, format);

            Assert.That(
                subjectUnderTest.ReadInitialHandshakeMessage(),
                Is.Not.Null);

            format.Received().Handshake(command);
            format.DidNotReceive().Handshake(null);
        }