From f3084a66d4d53b500aabf7cd3c256aadd71ca994 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 9 Aug 2025 16:40:04 +0000
Subject: [PATCH 1/2] Initial plan


From ec28c75c6bbcb15bc814a41c3b02cc18a158a548 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 9 Aug 2025 17:12:53 +0000
Subject: [PATCH 2/2] Add DataContractSerializer tests for
 System.Globalization.CompareInfo and System.Globalization.SortVersion

Co-authored-by: StephenMolloy <19562826+StephenMolloy@users.noreply.github.com>
---
 .../tests/DataContractSerializer.cs                | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs b/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
index 7f5599020944f7..7203163748de3f 100644
--- a/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
+++ b/src/libraries/System.Runtime.Serialization.Xml/tests/DataContractSerializer.cs
@@ -4573,4 +4573,18 @@ private static void TestObjectWithDifferentPayload<T>(T value, string netcorePay
         Assert.NotNull(deserializedDesktopObject);
         SerializationTestTypes.ComparisonHelper.CompareRecursively(value, deserializedDesktopObject);
     }
+
+    [Fact]
+    public static void DCS_CompareInfoAsRoot()
+    {
+        CompareInfo compareInfo = CultureInfo.InvariantCulture.CompareInfo;
+        Assert.StrictEqual(compareInfo, DataContractSerializerHelper.SerializeAndDeserialize<CompareInfo>(compareInfo, @"<CompareInfo xmlns=""http://schemas.datacontract.org/2004/07/System.Globalization"" xmlns:i=""http://www.w3.org/2001/XMLSchema-instance""><culture>127</culture><m_SortVersion><m_NlsVersion>31129</m_NlsVersion><m_SortId>00007999-0000-0000-0000-00000000007f</m_SortId></m_SortVersion><m_name/></CompareInfo>"));
+    }
+
+    [Fact]
+    public static void DCS_SortVersionAsRoot()
+    {
+        SortVersion sortVersion = CultureInfo.InvariantCulture.CompareInfo.Version;
+        Assert.StrictEqual(sortVersion, DataContractSerializerHelper.SerializeAndDeserialize<SortVersion>(sortVersion, @"<SortVersion xmlns=""http://schemas.datacontract.org/2004/07/System.Globalization"" xmlns:i=""http://www.w3.org/2001/XMLSchema-instance""><m_NlsVersion>31129</m_NlsVersion><m_SortId>00007999-0000-0000-0000-00000000007f</m_SortId></SortVersion>"));
+    }
 }