public void TestSTIsCollection() { using (var db = new PostGisTestDataConnection(TestDatabaseConnectionString)) { db.TestGeometries.Value(g => g.Id, 1).Value(g => g.Geometry, () => GeometryInput.STGeomFromText("LINESTRING(0 0, 1 1)")).Insert(); db.TestGeometries.Value(g => g.Id, 2).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT EMPTY")).Insert(); db.TestGeometries.Value(g => g.Id, 3).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT((0 0))")).Insert(); db.TestGeometries.Value(g => g.Id, 4).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("MULTIPOINT((0 0), (42 42))")).Insert(); db.TestGeometries.Value(g => g.Id, 5).Value(g => g.Geometry, () => GeometryInput.STGeomFromEWKT("GEOMETRYCOLLECTION(POINT(0 0))")).Insert(); db.TestGeometries.Value(g => g.Id, 6).Value(g => g.Geometry, () => null).Insert(); Assert.IsFalse(db.TestGeometries.Where(g => g.Id == 1).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 2).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 3).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 4).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsTrue(db.TestGeometries.Where(g => g.Id == 5).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsNull(db.TestGeometries.Where(g => g.Id == 6).Select(g => g.Geometry.STIsCollection()).Single()); Assert.IsNull(db.Select(() => GeometryAccessors.STIsCollection((NTSG)null))); Assert.IsFalse(db.Select(() => GeometryAccessors.STIsCollection("LINESTRING(0 0, 1 1)"))); Assert.IsTrue(db.Select(() => GeometryAccessors.STIsCollection("MULTIPOINT EMPTY"))); } }