public void BboxPolygon() { var poly = Turf.BboxPolygon(new List <double>() { 0, 0, 10, 10 }); Assert.AreEqual(poly.Geometry.Type, GeoJSONObjectType.Polygon, "should be a Polygon geometry type"); var coords = ((Polygon)poly.Geometry).Coordinates[0].Coordinates; Assert.AreEqual(coords.Count, 5); Assert.AreEqual(((GeographicPosition)coords[0]).Latitude, ((GeographicPosition)coords[coords.Count - 1]).Latitude); Assert.AreEqual(((GeographicPosition)coords[0]).Longitude, ((GeographicPosition)coords[coords.Count - 1]).Longitude); }