From ec20000df1a5d6242274b8d03739f8357100f9a3 Mon Sep 17 00:00:00 2001
From: Tomas <trylek@microsoft.com>
Date: Thu, 22 Apr 2021 17:58:35 +0200
Subject: [PATCH] Fix test 49826 to work after the refactoring in #50074

The change #50074 made rooting of built-in serializers lazier. By
analyzing the library code I have figured out that I can root the
default serializers by calling Serialize. This fixes the test
failure.

Thanks

Tomas
---
 src/tests/Regressions/coreclr/GitHub_49826/test49826.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs b/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
index f89706591b5132..ee210fca1c641b 100644
--- a/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
+++ b/src/tests/Regressions/coreclr/GitHub_49826/test49826.cs
@@ -11,6 +11,10 @@ class Program
     static int Main()
     {
         JsonSerializerOptions options = new JsonSerializerOptions();
+
+        // This is needed to internally call RootBuiltInConvertersAndTypeInfoCreator
+        JsonSerializer.Serialize("a-string");
+
         JsonConverter converter = options.GetConverter(typeof(DateTime));
         Console.WriteLine("Converter type: {0}", converter.GetType());
         return converter != null ? 100 : 1;