public void TestSTPolygonFromText()
{
using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString))
{
const string Wkt = "POLYGON((0 0,0 150,150 150,150 0,0 0),(20 20,50 20,50 50,20 50,20 20))";
Assert.AreEqual(
"SRID=3857;" + Wkt,
db.Select(() => GeometryInput.STPolygonFromText(Wkt, SRID3857).STAsEWKT()));
Assert.IsNull(db.Select(() => GeometryInput.STPolygonFromText("LINESTRING (1 2, 3 4)")));
Assert.IsNull(db.Select(() => GeometryInput.STPolygonFromText(null)));
}
}