[MacCatalyst][libraries] Add specific SkipOnPlatform and ActiveIssues instead...

[MacCatalyst][libraries] Add specific SkipOnPlatform and ActiveIssues instead of test level skip (#52859)

* [MacCatalyst][libraries] Add System.Console.Tests SkipOnPlatform

* [MacCatalyst][libraries] Add System.Diagnostics.Process.Tests SkipOnPlatform

* [MacCatalyst][libraries] Add Microsoft.Extensions.Hosting.Unit.Tests SkipOnPlatform

* [MacCatalyst][libraries] Add System.Net.NetworkInformation.FunctionalTests SkipOnPlatform

* [MacCatalyst][libraries] Add System.IO.FileSystems.Tests SkipOnPlatform

* [MacCatalyst][libraries] Add Microsoft.VisualBasic.Core.Tests ActiveIssue

* [MacCatalyst][libraries] Add System.Diagnostics.Process.Tests ActiveIssue

* [MacCatalyst][libraries] Add System.Threading.Thread.Tests ActiveIssue

* [MacCatalyst][libraries] Add System.IO.FileSystem.Tests ActiveIssue

* [MacCatalyst][libraries] Add System.Runtime.Extensions.Tests ActiveIssue

* [MacCatalyst][libraries] Remove test project level skips

* [MacCatalyst] Add forgotten PNSE and ActiveIssue

* [MacCatalyst][libraries] Coalesce MacCatalyst into iOS tvOS SkipOnPlatform
Co-authored-by: NMitchell Hwang <mitchell.hwang@microsoft.com>

src/libraries/Microsoft.Extensions.Hosting/tests/UnitTests/HostTests.cs

@@ -21,7 +21,7 @@ namespace Microsoft.Extensions.Hosting.Tests
     public partial class HostTests
     {
         [Fact]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public async Task StopAsyncWithCancellation()
         {
             var builder = new HostBuilder();

src/libraries/Microsoft.VisualBasic.Core/tests/FileSystemTests.cs

@@ -28,6 +28,7 @@ protected override void Dispose(bool disposing)
         // path that followed the symlink.
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotOSX))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/50572", TestPlatforms.Android)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52851", TestPlatforms.MacCatalyst)]
         public void ChDir()
         {
             var savedDirectory = System.IO.Directory.GetCurrentDirectory();
@@ -86,6 +87,7 @@ static string getString(string fileName)
         // Can't get current directory on OSX before setting it.
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotOSX))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/50572", TestPlatforms.Android)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52851", TestPlatforms.MacCatalyst)]
         public void CurDir()
         {
             Assert.Equal(FileSystem.CurDir(), System.IO.Directory.GetCurrentDirectory());

src/libraries/Microsoft.VisualBasic.Core/tests/Microsoft/VisualBasic/FileIO/FileSystemTests.cs

@@ -298,6 +298,7 @@ public void CurrentDirectoryGet()
         // path that followed the symlink.
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotOSX))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/50572", TestPlatforms.Android)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52851", TestPlatforms.MacCatalyst)]
         public void CurrentDirectorySet()
         {
             var SavedCurrentDirectory = System.IO.Directory.GetCurrentDirectory();

src/libraries/System.Console/tests/CancelKeyPress.cs

@@ -13,7 +13,7 @@ public partial class CancelKeyPressTests
     private const int WaitFailTestTimeoutSeconds = 30;
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void CanAddAndRemoveHandler()
     {
         ConsoleCancelEventHandler handler = (sender, e) =>

src/libraries/System.Console/tests/Color.cs

@@ -12,7 +12,7 @@
 public class Color
 {
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void InvalidColors()
     {
         AssertExtensions.Throws<ArgumentException>(null, () => Console.BackgroundColor = (ConsoleColor)42);
@@ -20,7 +20,7 @@ public static void InvalidColors()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void RoundtrippingColor()
     {
         Console.BackgroundColor = Console.BackgroundColor;
@@ -49,7 +49,7 @@ public static void BackgroundColor_Throws_PlatformNotSupportedException()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void RedirectedOutputDoesNotUseAnsiSequences()
     {
         // Make sure that redirecting to a memory stream causes Console not to write out the ANSI sequences

src/libraries/System.Console/tests/ConsoleEncoding.cs

@@ -22,7 +22,7 @@ public static IEnumerable<object[]> InputData()
 
     [Theory]
     [MemberData(nameof(InputData))]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void TestEncoding(string inputString)
     {
         TextWriter outConsoleStream = Console.Out;
@@ -79,7 +79,7 @@ public void TestEncoding(string inputString)
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void TestValidEncodings()
     {
         Action<Encoding> check = encoding =>

src/libraries/System.Console/tests/ReadAndWrite.cs

@@ -258,7 +258,7 @@ private static unsafe void ValidateConsoleEncoding(Encoding encoding)
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static unsafe void OutputEncodingPreamble()
     {
         Encoding curEncoding = Console.OutputEncoding;
@@ -281,7 +281,7 @@ public static unsafe void OutputEncodingPreamble()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static unsafe void OutputEncoding()
     {
         Encoding curEncoding = Console.OutputEncoding;
@@ -349,7 +349,7 @@ public static void InputEncoding_Getter_Throws_PlatformNotSupportedException()
     };
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void ReadAndReadLine()
     {
         TextWriter savedStandardOutput = Console.Out;

src/libraries/System.Console/tests/SetIn.cs

@@ -11,7 +11,7 @@
 public class SetIn
 {
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void SetInThrowsOnNull()
     {
         TextReader savedIn = Console.In;
@@ -26,7 +26,7 @@ public static void SetInThrowsOnNull()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void SetInReadLine()
     {
         const string TextStringFormat = "Test {0}";

src/libraries/System.Console/tests/SyncTextReader.cs

@@ -6,7 +6,7 @@
 using System.Text;
 using Xunit;
 
-[SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+[SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
 public class SyncTextReader
 {
     // NOTE: These tests test the underlying SyncTextReader by

src/libraries/System.Console/tests/ThreadSafety.cs

@@ -12,7 +12,7 @@ public class ThreadSafety
     const int NumberOfIterations = 100;
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void OpenStandardXXXCanBeCalledConcurrently()
     {
         Parallel.For(0, NumberOfIterations, i =>
@@ -41,7 +41,7 @@ public static void OpenStandardXXXCanBeCalledConcurrently()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void SetStandardXXXCanBeCalledConcurrently()
     {
         TextReader savedStandardInput = Console.In;
@@ -84,7 +84,7 @@ public static void SetStandardXXXCanBeCalledConcurrently()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void ReadMayBeCalledConcurrently()
     {
         const char TestChar = '+';

src/libraries/System.Console/tests/Timeout.cs

@@ -11,7 +11,7 @@
 public class TimeOut
 {
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void OpenStandardXXX_WriteTimeOut()
     {
         using (Stream standardOut = Console.OpenStandardOutput(), standardIn = Console.OpenStandardInput(), standardError = Console.OpenStandardError())
@@ -27,7 +27,7 @@ public static void OpenStandardXXX_WriteTimeOut()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void OpenStandardXXX_ReadTimeOut()
     {
         using (Stream standardOut = Console.OpenStandardOutput(), standardIn = Console.OpenStandardInput(), standardError = Console.OpenStandardError())
@@ -43,7 +43,7 @@ public static void OpenStandardXXX_ReadTimeOut()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void OpenStandardXXX_CanTimeOut()
     {
         using (Stream standardOut = Console.OpenStandardOutput(), standardIn = Console.OpenStandardInput(), standardError = Console.OpenStandardError())

src/libraries/System.Console/tests/WindowAndCursorProps.cs

@@ -11,7 +11,7 @@
 public class WindowAndCursorProps
 {
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void BufferWidth_GetUnix_ReturnsWindowWidth()
     {
         Assert.Equal(Console.WindowWidth, Console.BufferWidth);
@@ -25,7 +25,7 @@ public static void BufferWidth_SetUnix_ThrowsPlatformNotSupportedException()
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void BufferHeight_GetUnix_ReturnsWindowHeight()
     {
         Assert.Equal(Console.WindowHeight, Console.BufferHeight);
@@ -62,7 +62,7 @@ public static void WindowWidth_SetInvalid_ThrowsArgumentOutOfRangeException(int
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void WindowWidth_GetUnix_Success()
     {
         // Validate that Console.WindowWidth returns some value in a non-redirected o/p.
@@ -94,7 +94,7 @@ public static void WindowHeight_SetInvalid_ThrowsArgumentOutOfRangeException(int
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void WindowHeight_GetUnix_Success()
     {
         // Validate that Console.WindowHeight returns some value in a non-redirected o/p.
@@ -110,7 +110,7 @@ public static void WindowHeight_SetUnix_ThrowsPlatformNotSupportedException()
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void LargestWindowWidth_UnixGet_ReturnsExpected()
     {
         Helpers.RunInNonRedirectedOutput((data) => Assert.Equal(Console.WindowWidth, Console.LargestWindowWidth));
@@ -118,7 +118,7 @@ public static void LargestWindowWidth_UnixGet_ReturnsExpected()
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
     public static void LargestWindowHeight_UnixGet_ReturnsExpected()
     {
         Helpers.RunInNonRedirectedOutput((data) => Assert.Equal(Console.WindowHeight, Console.LargestWindowHeight));
@@ -191,7 +191,7 @@ public static void CursorVisible_GetUnix_ThrowsPlatformNotSupportedException()
     }
 
     [Theory]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]  // Expected behavior specific to Unix
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS )]  // Expected behavior specific to Unix
     [InlineData(true)]
     [InlineData(false)]
     public static void CursorVisible_SetUnixRedirected_Nop(bool value)
@@ -337,7 +337,7 @@ public static void SetCursorPosition_Throws_PlatformNotSupportedException()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void SetCursorPosition_Invoke_Success()
     {
         if (!OperatingSystem.IsWindows() || (!Console.IsInputRedirected && !Console.IsOutputRedirected))
@@ -364,7 +364,7 @@ public void SetCursorPosition_InvalidPosition_ThrowsArgumentOutOfRangeException(
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public static void GetCursorPosition_Invoke_ReturnsExpected()
     {
         if (!Console.IsInputRedirected && !Console.IsOutputRedirected)
@@ -391,7 +391,7 @@ public static void GetCursorPosition_Invoke_ReturnsExpected()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void CursorLeft_Set_GetReturnsExpected()
     {
         if (!Console.IsInputRedirected && !Console.IsOutputRedirected)
@@ -413,7 +413,7 @@ public void CursorLeft_Set_GetReturnsExpected()
     [Theory]
     [InlineData(-1)]
     [InlineData(short.MaxValue + 1)]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void CursorLeft_SetInvalid_ThrowsArgumentOutOfRangeException(int value)
     {
         if (PlatformDetection.IsWindows && Console.IsOutputRedirected)
@@ -434,7 +434,7 @@ public void CursorLeft_Setter_Throws_PlatformNotSupportedException()
     }
 
     [Fact]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void CursorTop_Set_GetReturnsExpected()
     {
         if (!Console.IsInputRedirected && !Console.IsOutputRedirected)
@@ -456,7 +456,7 @@ public void CursorTop_Set_GetReturnsExpected()
     [Theory]
     [InlineData(-1)]
     [InlineData(short.MaxValue + 1)]
-    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+    [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
     public void CursorTop_SetInvalid_ThrowsArgumentOutOfRangeException(int value)
     {
         if (PlatformDetection.IsWindows & Console.IsOutputRedirected)
@@ -505,7 +505,7 @@ public void CursorSize_SetInvalidValue_ThrowsArgumentOutOfRangeException(int val
     }
 
     [Fact]
-    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.tvOS)]
+    [PlatformSpecific(TestPlatforms.AnyUnix & ~TestPlatforms.Browser & ~TestPlatforms.iOS & ~TestPlatforms.MacCatalyst & ~TestPlatforms.tvOS)]
     public void CursorSize_GetUnix_ReturnsExpected()
     {
         Assert.Equal(100, Console.CursorSize);

src/libraries/System.Diagnostics.Process/tests/ProcessTests.Unix.cs

@@ -158,7 +158,7 @@ public void ProcessStart_UseShellExecute_OnUnix_SuccessWhenProgramInstalled(bool
 
         [Fact]
         [SkipOnPlatform(TestPlatforms.OSX, "On OSX, ProcessName returns the script interpreter.")]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void ProcessNameMatchesScriptName()
         {
             string scriptName = GetTestFileName();
@@ -477,7 +477,7 @@ public void TestBasePriorityOnUnix()
         }
 
         [Fact]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void TestStartOnUnixWithBadPermissions()
         {
             string path = GetTestFilePath();
@@ -489,7 +489,7 @@ public void TestStartOnUnixWithBadPermissions()
         }
 
         [Fact]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void TestStartOnUnixWithBadFormat()
         {
             string path = GetTestFilePath();

src/libraries/System.Diagnostics.Process/tests/ProcessTests.cs

@@ -194,6 +194,7 @@ public void ProcessStart_TryOpenFolder_UseShellExecuteIsFalse_ThrowsWin32Excepti
 
         [Fact]
         [SkipOnPlatform(TestPlatforms.OSX, "OSX doesn't support throwing on Process.Start")]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52882", TestPlatforms.MacCatalyst)]
         public void TestStartWithBadWorkingDirectory()
         {
             string program;
@@ -276,7 +277,7 @@ public void ProcessStart_UseShellExecute_OnWindows_DoesNotThrow(bool isFolder)
             nameof(PlatformDetection.IsNotWindowsNanoServer), nameof(PlatformDetection.IsNotWindowsIoTCore))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/34685", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [InlineData(true), InlineData(false)]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void ProcessStart_UseShellExecute_Executes(bool filenameAsUrl)
         {
             string filename = WriteScriptFile(TestDirectory, GetTestFileName(), returnValue: 42);
@@ -345,7 +346,7 @@ public void ProcessStart_UseShellExecute_ExecuteOrder()
         [ConditionalFact(typeof(PlatformDetection), nameof(PlatformDetection.IsNotWindowsServerCore),
             nameof(PlatformDetection.IsNotWindowsNanoServer), nameof(PlatformDetection.IsNotWindowsIoTCore))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/34685", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void ProcessStart_UseShellExecute_WorkingDirectory()
         {
             // Create a directory that will ProcessStartInfo.WorkingDirectory
@@ -548,7 +549,7 @@ public void TestMaxWorkingSet()
         }
 
         [Fact]
-        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD | TestPlatforms.iOS | TestPlatforms.tvOS, "Getting MaxWorkingSet is not supported on OSX, BSD, iOS, and tvOS.")]
+        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Getting MaxWorkingSet is not supported on OSX, BSD, iOS, MacCatalyst, and tvOS.")]
         public void MaxWorkingSet_GetNotStarted_ThrowsInvalidOperationException()
         {
             var process = new Process();
@@ -603,7 +604,7 @@ public void TestMinWorkingSet()
         }
 
         [Fact]
-        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD | TestPlatforms.iOS | TestPlatforms.tvOS, "Getting MinWorkingSet is not supported on OSX, BSD, iOS, and tvOS.")]
+        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Getting MinWorkingSet is not supported on OSX, BSD, iOS, MacCatalyst, and tvOS.")]
         public void MinWorkingSet_GetNotStarted_ThrowsInvalidOperationException()
         {
             var process = new Process();
@@ -1381,7 +1382,7 @@ public void CanBeFinalized()
         [Theory]
         [InlineData(false)]
         [InlineData(true)]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public void TestStartWithMissingFile(bool fullPath)
         {
             string path = Guid.NewGuid().ToString("N");
@@ -2094,6 +2095,7 @@ public void TestLongProcessIsWorking()
         [PlatformSpecific(TestPlatforms.AnyUnix)]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/29330", TestPlatforms.OSX)]
         [Fact]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52852", TestPlatforms.MacCatalyst)]
         public void LongProcessNamesAreSupported()
         {
             string sleepPath;

src/libraries/System.IO.FileSystem/tests/Directory/Exists.cs

@@ -236,6 +236,7 @@ public void DoesCaseInsensitiveInvariantComparisons()
 
         [Fact]
         [PlatformSpecific(CaseSensitivePlatforms)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52857", TestPlatforms.MacCatalyst)]
         public void DoesCaseSensitiveComparisons()
         {
             DirectoryInfo testDir = Directory.CreateDirectory(GetTestFilePath());

src/libraries/System.IO.FileSystem/tests/DirectoryInfo/Exists.cs

@@ -77,6 +77,7 @@ public void CaseInsensitivity()
 
         [Fact]
         [PlatformSpecific(CaseSensitivePlatforms)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52857", TestPlatforms.MacCatalyst)]
         public void CaseSensitivity()
         {
             Assert.False(new DirectoryInfo(TestDirectory.ToUpperInvariant()).Exists);

src/libraries/System.IO.FileSystem/tests/File/Exists.cs

@@ -180,7 +180,8 @@ public void DoesCaseInsensitiveInvariantComparions()
 
         [Fact]
         [PlatformSpecific(CaseSensitivePlatforms)]
-        public void DoesCaseSensitiveComparions()
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52857", TestPlatforms.MacCatalyst)]
+        public void DoesCaseSensitiveComparisons()
         {
             FileInfo testFile = new FileInfo(GetTestFilePath());
             testFile.Create().Dispose();

src/libraries/System.IO.FileSystem/tests/FileInfo/Exists.cs

@@ -63,6 +63,7 @@ public void CaseInsensitivity()
 
         [Fact]
         [PlatformSpecific(CaseSensitivePlatforms)]
+        [ActiveIssue("https://github.com/dotnet/runtime/issues/52857", TestPlatforms.MacCatalyst)]
         public void CaseSensitivity()
         {
             string path = GetTestFilePath();

src/libraries/System.IO.FileSystem/tests/FileStream/LockUnlock.cs

@@ -58,7 +58,7 @@ public void LockUnlock_Unsupported_OSX()
         [InlineData(200, 50, 150)]
         [InlineData(200, 100, 100)]
         [InlineData(20, 2000, 1000)]
-        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
+        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
         public void Lock_Unlock_Successful(long fileLength, long position, long length)
         {
             string path = GetTestFilePath();
@@ -75,7 +75,7 @@ public void Lock_Unlock_Successful(long fileLength, long position, long length)
         [InlineData(FileAccess.Read)]
         [InlineData(FileAccess.Write)]
         [InlineData(FileAccess.ReadWrite)]
-        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
+        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
         public void Lock_Unlock_Successful_AlternateFileAccess(FileAccess fileAccess)
         {
             string path = GetTestFilePath();
@@ -89,7 +89,7 @@ public void Lock_Unlock_Successful_AlternateFileAccess(FileAccess fileAccess)
 
         [Theory]
         [InlineData(10, 0, 2, 3, 5)]
-        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
+        [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on macOS/iOS/tvOS/MacCatalyst.")]
         public void NonOverlappingRegions_Success(long fileLength, long firstPosition, long firstLength, long secondPosition, long secondLength)
         {
             string path = GetTestFilePath();

src/libraries/System.Net.NetworkInformation/tests/FunctionalTests/NetworkInterfaceBasicTest.cs

@@ -282,7 +282,7 @@ public void BasicTest_GetIsNetworkAvailable_Success()
         [Theory]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/34690", TestPlatforms.Windows, TargetFrameworkMonikers.Netcoreapp, TestRuntimes.Mono)]
         [SkipOnPlatform(TestPlatforms.OSX | TestPlatforms.FreeBSD, "Expected behavior is different on OSX or FreeBSD")]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
         [InlineData(false)]
         [InlineData(true)]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/50567", TestPlatforms.Android)]

src/libraries/System.Runtime.Extensions/tests/System/Environment.Exit.cs

@@ -42,7 +42,7 @@ public static void ExitCode_Roundtrips(int exitCode)
         [InlineData(1)] // setting ExitCode and exiting Main
         [InlineData(2)] // setting ExitCode both from Main and from an Unloading event handler.
         [InlineData(3)] // using Exit(exitCode)
-        [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on Browser, iOS, or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.Browser | TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on Browser, iOS, MacCatalyst, or tvOS.")]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/49568", typeof(PlatformDetection), nameof(PlatformDetection.IsMacOsAppleSilicon))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/49868", TestPlatforms.Android)]
         public static void ExitCode_VoidMainAppReturnsSetValue(int mode)

src/libraries/System.Threading.Thread/tests/ThreadTests.cs

@@ -171,7 +171,7 @@ yield return
         [InlineData("DefaultApartmentStateMain.exe", "SetApartmentStateTest")]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/49568", typeof(PlatformDetection), nameof(PlatformDetection.IsMacOsAppleSilicon))]
         [ActiveIssue("https://github.com/dotnet/runtime/issues/50577", TestPlatforms.Android)]
-        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "Not supported on iOS or tvOS.")]
+        [SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.MacCatalyst | TestPlatforms.tvOS, "Not supported on iOS, MacCatalyst, or tvOS.")]
         public static void ApartmentState_AttributePresent(string appName, string testName)
         {
             var psi = new ProcessStartInfo();

src/libraries/tests.proj

@@ -184,16 +184,6 @@
     <!-- Crashes randomly during test runs https://github.com/dotnet/runtime/issues/52460 -->
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Tasks\tests\System.Threading.Tasks.Tests.csproj" />
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Tasks.Dataflow\tests\System.Threading.Tasks.Dataflow.Tests.csproj" />
-
-    <!-- PNSE -->
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.IO.FileSystem/tests/System.IO.FileSystem.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Diagnostics.Process/tests/System.Diagnostics.Process.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Runtime.Extensions/tests/System.Runtime.Extensions.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Net.NetworkInformation/tests/FunctionalTests/System.Net.NetworkInformation.Functional.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.Extensions.Hosting/tests/UnitTests/Microsoft.Extensions.Hosting.Unit.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)Microsoft.VisualBasic.Core/tests/Microsoft.VisualBasic.Core.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Threading.Thread/tests/System.Threading.Thread.Tests.csproj" />
-    <ProjectExclusions Include="$(MSBuildThisFileDirectory)System.Console/tests/System.Console.Tests.csproj" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetOS)' == 'Browser' and '$(RunDisabledWasmTests)' != 'true'">