public void TestConvertValue()
        {
            PolylineEncoderDecoder.Converter conv = new PolylineEncoderDecoder.Converter(5);
            StringBuilder result = new StringBuilder();

            conv.EncodeValue(-179.98321, result);
            Assert.AreEqual(result.ToString(), "h_wqiB");
        }
        public void TestDecodeConvertValue()
        {
            var encoded  = "h_wqiB";
            var expected = -179.98321;
            var index    = 0;
            var computed = 0d;
            var conv     = new PolylineEncoderDecoder.Converter(5);

            conv.DecodeValue(encoded.ToCharArray(), ref index, ref computed);
            Assert.AreEqual(computed, expected);
        }