System.Net.Http.Headers.ContentRangeHeaderValue.ToString C# (CSharp) Метод

        public override string ToString()
        {
            StringBuilder sb = new StringBuilder(_unit);
            sb.Append(' ');

            if (HasRange)
            {
                sb.Append(_from.Value.ToString(NumberFormatInfo.InvariantInfo));
                sb.Append('-');
                sb.Append(_to.Value.ToString(NumberFormatInfo.InvariantInfo));
            }
            else
            {
                sb.Append('*');
            }

            sb.Append('/');
            if (HasLength)
            {
                sb.Append(_length.Value.ToString(NumberFormatInfo.InvariantInfo));
            }
            else
            {
                sb.Append('*');
            }

            return sb.ToString();
        }

        public void ToString_UseDifferentRanges_AllSerializedCorrectly()
        {
            ContentRangeHeaderValue range = new ContentRangeHeaderValue(1, 2, 3);
            range.Unit = "myunit";
            Assert.Equal("myunit 1-2/3", range.ToString()); // "Range with all fields set"

            range = new ContentRangeHeaderValue(123456789012345678, 123456789012345679);
            Assert.Equal("bytes 123456789012345678-123456789012345679/*", range.ToString()); // "Only range, no length"

            range = new ContentRangeHeaderValue(150);
            Assert.Equal("bytes */150", range.ToString()); // "Only length, no range"
        }