private static void CheckInvalidGetNameValueWithParametersLength(string input, int startIndex)
        {
            object result = null;

            Assert.Equal(0, NameValueWithParametersHeaderValue.GetNameValueWithParametersLength(input, startIndex,
                                                                                                out result));
            Assert.Null(result);
        }
        private static void CallGetNameValueWithParametersLength(string input, int startIndex, int expectedLength,
                                                                 out NameValueWithParametersHeaderValue result)
        {
            object temp = null;

            Assert.Equal(expectedLength, NameValueWithParametersHeaderValue.GetNameValueWithParametersLength(input,
                                                                                                             startIndex, out temp));
            result = temp as NameValueWithParametersHeaderValue;
        }