Fixed netfx System.Text.Encoding.Tests fails on non-English Windows (#28349)

Author: AlexRadch

src/System.Text.Encoding/tests/Encoding/EncodingGetEncodingTests.cs

@@ -2,12 +2,13 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System.Diagnostics;
 using System.Globalization;
 using Xunit;
 
 namespace System.Text.Tests
 {
-    public class EncodingGetEncodingTest
+    public class EncodingGetEncodingTest : RemoteExecutorTestBase
     {
         [Fact]
         public void GetEncoding_String_Invalid()
@@ -99,10 +100,10 @@ public void TestEncodingNameAndCopdepageNumber()
         [Fact]
         public void GetEncoding_EncodingName()
         {
-            CultureInfo originalUICulture = CultureInfo.CurrentUICulture;
-            try
+            // Workaround issue: UWP culture is process wide
+            RemoteInvoke(() =>
             {
-                CultureInfo.CurrentCulture = new CultureInfo("en-US");
+                CultureInfo.CurrentUICulture = CultureInfo.InvariantCulture;
 
                 foreach (var map in s_mapping)
                 {
@@ -115,11 +116,7 @@ public void GetEncoding_EncodingName()
 
                     Assert.All(name, ch => Assert.InRange(ch, 0, 127));
                 }
-            }
-            finally
-            {
-                CultureInfo.CurrentUICulture = originalUICulture;
-            }
+            }).Dispose();
         }
 
         [Fact]

src/System.Text.Encoding/tests/System.Text.Encoding.Tests.csproj

@@ -81,5 +81,11 @@
     <Compile Include="Decoder\Decoder.cs" />
     <Compile Include="Encoder\Encoder.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(CommonTestPath)\System\Diagnostics\RemoteExecutorConsoleApp\RemoteExecutorConsoleApp.csproj">
+      <Project>{69e46a6f-9966-45a5-8945-2559fe337827}</Project>
+      <Name>RemoteExecutorConsoleApp</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.targets))\dir.targets" />
 </Project>