public void Authorise_SingleHose_AuthorisesHose()
        {
            _mockIO.Setup(c => c.SendAndReceive(CompanyCommands.AuthoriseHose, "04")).Verifiable();
            var forecourt = new Company(_mockIO.Object);

            forecourt.Authorise(new Hose(1));
            forecourt.Dispose();

            _mockIO.Verify(c => c.SendAndReceive(CompanyCommands.AuthoriseHose, "04"));
        }