private static void EncodePolylinePartTest(string expected, string input)
        {
            var parts   = input.SplitX('|');
            var encoded = LinePathCollection.EncodePolyline(parts);

            Assert.AreEqual(expected, encoded);
        }
        public void EncodeOnePart()
        {
            var sb    = new StringBuilder();
            var first = 0;

            LinePathCollection.EncodePolylinePart(sb, -179.9832104, ref first);
            var encoded = sb.ToString();

            Assert.AreEqual("`~oia@", encoded);
        }