using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

using System.Reflection;

using System.Collections.ObjectModel;

​

using System.Text.Json;

using System.Text.Json.Serialization;

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/68682450/automatic-conversion-of-numbers-to-bools-migrating-from-newtonsoft-to-system-t

​

    public record OutputState(bool Active);

​

    public class BoolConverter : JsonConverter<bool>

    {

        public override void Write(Utf8JsonWriter writer, bool value, JsonSerializerOptions options) =>

            writer.WriteBooleanValue(value);

        public override bool Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) =>

            reader.TokenType switch

            {

                JsonTokenType.True => true,

                JsonTokenType.False => false,

                JsonTokenType.String => bool.TryParse(reader.GetString(), out var b) ? b : throw new JsonException(),

                JsonTokenType.Number => reader.TryGetInt64(out long l) ? Convert.ToBoolean(l) : reader.TryGetDouble(out double d) ? Convert.ToBoolean(d) : false,

                _ => throw new JsonException(),

            };

    }

​

​

    class TestClass

    {

        public static void Test()

        {

            Console.WriteLine();

​

            Test("true");

            Test("false");

            Test("True");

            Test("False");

​

            Test("\"True\"");

            Test("\"False\"");

            Test("\"TRUE\"");

            Test("\"FALSE\"");

            Test("\"true\"");

            Test("\"false\"");

            Test("\"\"");

            Test("null");

            Console.WriteLine();

            Test("0");

            Test("1");

            Test("2");

            Test("1.1");

            Test("-1");

            Test("111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111");

            Test("11111111111111111111111111111111111111111111111111111111111111111111111111111111111");

            Test("11111111111111111111111111111111111111111111111111111111111111111111111111111111111.0");

            Test("111111111111111111111111111111111111111111111111111111111111111111111111111111111112222222222222222222.0");

            Test("0.000000");

            Test("0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001");

            Test("4.94065645841247E-324");

            Test("4.94065645841247E-326");

            Test("1.7976931348623157E+308");

            Test("1.7976931348623157E+309");

        }

        static void Test(string boolValue)

        {

            Console.Write("Testing {0}... ", boolValue);

            var data = string.Format("{{ \"Active\": {0} }}", boolValue);

            var output = TestRecord(data);

            Console.WriteLine("Results consistent: {0}", output == null ? "Failed" : output?.ToString());

        }

        static bool? TestRecord(string data)

        {

            OutputState systemResult = null;

            OutputState newtonsoftResult = null;

            try

            {

                var options = new JsonSerializerOptions

                {

                    Converters = { new BoolConverter() },

                };

                var s1 = System.Text.Json.JsonSerializer.Deserialize<OutputState>(data, options);

                //Console.WriteLine($"OutputState 1: {s1.Active}");

                systemResult = s1;

            }

            catch (Exception ex)

            {

                //Console.WriteLine($"System.Text.Json failed: {ex.Message}");

            }

​

            try

            {

                var s2 = Newtonsoft.Json.JsonConvert.DeserializeObject<OutputState>(data);

                //Console.WriteLine($"OutputState 2: {s2.Active}");

                newtonsoftResult = s2;

            }

            catch (Exception ex)

            {

                //Console.WriteLine($"Newtonsoft.Json failed: {ex.Message}");

            }

            Assert.AreEqual(newtonsoftResult?.Active, systemResult?.Active, "newtonsoftResult?.Active == systemResult?.Active");

            return systemResult?.Active;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine("System.Text.Json version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return "";

        }

    }

​