public void TestSTMinimumClearanceLine()
        {
            using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
            {
                var geometry1 = db.Select(() => GeometryInput.STGeomFromText("POLYGON ((0 0, 1 0, 1 1, 0.5 3.2e-4, 0 0))"));
                var lline1    = db.Select(() => MeasurementFunctions.STMinimumClearanceLine(geometry1).STAsEWKT());
                Assert.AreEqual("LINESTRING(0.5 0.00032,0.5 0)", lline1);

                Assert.IsNull(db.Select(() => MeasurementFunctions.STMinimumClearanceLine(null)));
            }
        }