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 Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

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

​

//https://stackoverflow.com/questions/63898984/how-to-throw-an-exception-when-jsonconstructor-parameter-name-doesnt-match-json

​

    public readonly struct Foo {

​

        [JsonConstructor]

        public Foo([JsonProperty(Required = Required.Always)]long wrong) { // Required = Required.Always on the property doesn't work.

            FooField = wrong;

        }

​

        public readonly long FooField;

​

    }

​

    class TestClass

    {

        public static void Test()

        {

            Assert.Throws(typeof(JsonSerializationException), () => JsonConvert.DeserializeObject<Foo>("{\"FooField\":42}"));

​

            // The Foo constructor parameter name ("wrong") doesn't match the JSON property name ("FooField").

            var foo = JsonConvert.DeserializeObject<Foo>("{\"FooField\":42}");

​

            // The foo.FooField is now 0.

            // How can we cause the above to throw an exception instead of just assigning 0 to Foo.FooField?

​

            Assert.IsTrue(foo.FooField != 0);

        }   

    }

​

    public class Program

    {

        public static void Main()

        {

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

            Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Assembly.GetName().Name,  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.CodeBase.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

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

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

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​