Port disabling 3 Nano tests to 2.0 (#20082)

* Disable SQL test for nano

* Disable service contrller test

* Fix test for nano (#19948)

* Disable test for nano (#20023)

Author: danmoseley

src/System.Data.SqlClient/tests/FunctionalTests/SqlConnectionTest.cs

@@ -22,9 +22,8 @@ public void ConnectionTest()
             }
         }
 
-
-        [Fact]
         [PlatformSpecific(TestPlatforms.Windows)]  // Integ auth on Test server is supported on Windows right now
+        [ConditionalFact(nameof(PlatformDetection) + "." + nameof(PlatformDetection.IsNotWindowsNanoServer))] // https://github.com/dotnet/corefx/issues/19218
         public void IntegratedAuthConnectionTest()
         {
             using (TestTdsServer server = TestTdsServer.StartTestServer())

src/System.Runtime.Extensions/tests/System/EnvironmentTests.cs

@@ -266,7 +266,7 @@ public void GetFolderPath_OSX_NonEmptyFolderPaths(Environment.SpecialFolder fold
         }
 
         // The commented out folders aren't set on all systems.
-        [Theory]
+        [ConditionalTheory(nameof(PlatformDetection) + "." + nameof(PlatformDetection.IsNotWindowsNanoServer))] // https://github.com/dotnet/corefx/issues/19110
         [InlineData(Environment.SpecialFolder.ApplicationData)]
         [InlineData(Environment.SpecialFolder.CommonApplicationData)]
         [InlineData(Environment.SpecialFolder.LocalApplicationData)]
@@ -317,28 +317,14 @@ public void GetFolderPath_OSX_NonEmptyFolderPaths(Environment.SpecialFolder fold
         public unsafe void GetFolderPath_Windows(Environment.SpecialFolder folder)
         {
             string knownFolder = Environment.GetFolderPath(folder);
+
             Assert.NotEmpty(knownFolder);
 
             // Call the older folder API to compare our results.
             char* buffer = stackalloc char[260];
             SHGetFolderPathW(IntPtr.Zero, (int)folder, IntPtr.Zero, 0, buffer);
             string folderPath = new string(buffer);
 
-            if (PlatformDetection.IsWindowsNanoServer)
-            {
-                // https://github.com/dotnet/corefx/issues/19110
-                // On Windows Nano, ShGetKnownFolderPath currently isn't supported.
-                // It currently gives bogus results for everything except
-                // UserProfile. Assert that continues to be true, so if and when the fix the API,
-                // we will know to remove this Nano-specific path and protect their fix.
-                if (folder != Environment.SpecialFolder.UserProfile)
-                {
-                    Assert.NotEqual(folderPath, knownFolder);
-                }
-
-                return; // Even for UserProfile -- since the API is not supported the result may change
-            }
-
             Assert.Equal(folderPath, knownFolder);
         }
 

src/System.ServiceProcess.ServiceController/tests/System.ServiceProcess.ServiceController.Tests/SafeServiceControllerTests.cs

@@ -10,7 +10,7 @@ public static class SafeServiceControllerTests
     {
         private const string KeyIsoSvcName = "KEYISO";
 
-        [Fact]
+        [ConditionalFact(nameof(PlatformDetection) + "." + nameof(PlatformDetection.IsNotWindowsNanoServer))] // https://github.com/dotnet/corefx/issues/19223
         public static void GetServices()
         {
             bool foundKeyIsoSvc = false;