Fix build error on osx

Address build warning in test assembly

src/dotnet-core-uninstall/Shared/Configs/CommandLineConfigs.cs

@@ -8,6 +8,7 @@ using System.CommandLine.Builder;
 using System.CommandLine.Invocation;
 using System.CommandLine.Parsing;
 using System.Linq;
+using System.Runtime.InteropServices;
 using Microsoft.DotNet.Tools.Uninstall.MacOs;
 using Microsoft.DotNet.Tools.Uninstall.Shared.BundleInfo;
 using Microsoft.DotNet.Tools.Uninstall.Shared.Commands;
@@ -231,7 +232,7 @@ namespace Microsoft.DotNet.Tools.Uninstall.Shared.Configs
             }
             AssignOptionsToCommand(ListCommand, ListAuxOptions);
 
-            var bundleCollector = RuntimeInfo.RunningOnWindows ? new RegistryQuery() as IBundleCollector : new FileSystemExplorer() as IBundleCollector;
+            var bundleCollector = OperatingSystem.IsWindows() ? new RegistryQuery() as IBundleCollector : new FileSystemExplorer() as IBundleCollector;
             ListCommand.Handler = CommandHandler.Create(ExceptionHandler.HandleException(() => ListCommandExec.Execute(bundleCollector)));
             DryRunCommand.Handler = CommandHandler.Create(ExceptionHandler.HandleException(() => DryRunCommandExec.Execute(bundleCollector)));
             RemoveCommand.Handler = CommandHandler.Create(ExceptionHandler.HandleException(() => UninstallCommandExec.Execute(bundleCollector)));

test/dotnet-core-uninstall.Tests/Windows/RegistryQueryTests.cs

@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation and contributors. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
+using System;
 using FluentAssertions;
 using Microsoft.DotNet.Tools.Uninstall.Tests.Attributes;
 using Microsoft.DotNet.Tools.Uninstall.Windows;
@@ -48,9 +49,12 @@ namespace Microsoft.DotNet.Tools.Uninstall.Tests.Windows
         [InlineData("Microsoft .NET SDK 5.0.100 (arm64)")]
         internal void TestIsNetCoreBundleAccept(string input)
         {
-            RegistryQuery.IsNetCoreBundle(input, "0.0", "mockuninstall.exe", "0.0")
-                .Should()
-                .BeTrue();
+            if (OperatingSystem.IsWindows())
+            {
+                RegistryQuery.IsNetCoreBundle(input, "0.0", "mockuninstall.exe", "0.0")
+                    .Should()
+                    .BeTrue();
+            }
         }
 
         [WindowsOnlyTheory]
@@ -58,9 +62,12 @@ namespace Microsoft.DotNet.Tools.Uninstall.Tests.Windows
         [InlineData("Microsoft .NET Core SDK - rc1 (x86)")]
         internal void TestGetBundleVersionReturnsNullOnInvalidDisplayNames(string displayName)
         {
-            RegistryQuery.GetBundleVersion(displayName, string.Empty, string.Empty)
+            if (OperatingSystem.IsWindows())
+            {
+                RegistryQuery.GetBundleVersion(displayName, string.Empty, string.Empty)
                 .Should()
                 .BeNull();
+            }
         }
     }
 }