public void TestSTZmflag()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt1 = "LINESTRING(1 2, 3 4)";
db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt1)).Insert();
const string Wkt2 = "LINESTRINGM(1 2 3, 3 4 3)";
db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt2)).Insert();
const string Wkt3 = "CIRCULARSTRING(1 2 3, 3 4 3, 5 6 3)";
db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt3)).Insert();
const string Wkt4 = "POINT(1 2 3 4)";
db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT(Wkt4)).Insert();
db.TestGeometries.Value(g => g.Id, 5).Value(g => g.Geometry, () => null).Insert();
Assert.AreEqual(0, db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(1, db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(2, db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(3, db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STZmflag()).Single());
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STZmflag()).Single());
Assert.AreEqual(0, db.Select(() => GeometryAccessors.STZmflag(Wkt1)));
Assert.AreEqual(1, db.Select(() => GeometryAccessors.STZmflag(Wkt2)));
Assert.AreEqual(2, db.Select(() => GeometryAccessors.STZmflag(Wkt3)));
Assert.AreEqual(3, db.Select(() => GeometryAccessors.STZmflag(Wkt4)));
Assert.IsNull(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STZmflag()).Single());
}
}