public void Authorise_SingleHose_AuthoriseHose()
        {
            var mock = new EZTechMockIO();
            var forecourt = new EZTech(mock);

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

            var tuple = new Tuple<int, short>(1, 3);
            mock.SetPumpPropertiesExecutions.ContainsKey(tuple).Should().Be(true);
            mock.SetPumpPropertiesExecutions[tuple].Should().Be.GreaterThan(0);
        }