public void PresetByVolume_SingleHoseAndSomeVolume_PresetHoseWithSpecifiedVolume() { var status = string.Empty; _mockIO.Setup(c => c.SendAndReceive(WayneCommands.PresetByVolume, "0101581", ref status)) .Verifiable(); var forecourt = new Wayne(_mockIO.Object); forecourt.PresetByVolume(new Hose(1), 158d); forecourt.Dispose(); _mockIO.Verify(c => c.SendAndReceive(WayneCommands.PresetByVolume, "0101581", ref status)); }