Stable Dictionary sorting for System.Text.Json #76008
Description
Serializing the same dictionary but with entries added in different order in STJ can result in different results every time you run your app. We should offer converter/option which can make this behavior stable.
Repro:
using System.Text.Json;
Test repro = new Test();
if (Environment.TickCount % 2 == 0)
{
repro.Dict.Add("left", "foo");
repro.Dict.Add("right", "bar");
}
else
{
repro.Dict.Add("right", "bar");
repro.Dict.Add("left", "foo");
}
Console.WriteLine(JsonSerializer.Serialize(repro));
public class Test
{
public Dictionary<string, string> Dict { get; } = new();
}Output (randomly one of the following two):
{"Dict":{"left":"foo","right":"bar"}}
or
{"Dict":{"right":"bar","left":"foo"}}
Expected output:
{"Dict":{"left":"foo","right":"bar"}}