public void DeletePlot_Stratum()
        {
            var unitCode    = "u1";
            var stratumCode = "st1";
            var plotNumber  = 1;
            var plotID      = Guid.NewGuid().ToString();

            using (var database = CreateDatabase())
            {
                var datastore = new CuttingUnitDatastore(database, CruiseID, TestDeviceInfoService.TEST_DEVICEID, new SamplerInfoDataservice(database, CruiseID, TestDeviceInfoService.TEST_DEVICEID));

                var stratumPlot = new Plot_Stratum()
                {
                    CuttingUnitCode = unitCode,
                    PlotNumber      = plotNumber,
                    StratumCode     = stratumCode,
                };

                database.Execute("INSERT INTO Plot (CruiseID, PlotID, CuttingUnitCode, PlotNumber) VALUES " +
                                 $"('{CruiseID}', '{plotID}', '{unitCode}', {plotNumber});");

                datastore.InsertPlot_Stratum(stratumPlot);

                var echo = datastore.GetPlot_Stratum(unitCode, stratumCode, plotNumber);
                echo.Should().NotBeNull("where's my echo");

                datastore.DeletePlot_Stratum(echo.CuttingUnitCode, echo.StratumCode, echo.PlotNumber);
            }
        }