[wasm] Switch to PNSE version of FileSystemWatcher and exclude xunit tests (#16892)

Fixes https://github.com/mono/mono/issues/16876

2 files changed, 164 insertions, 1 deletions

diff --git a/mcs/class/System/System.IO/FileSystemWatcher.cs b/mcs/class/System/System.IO/FileSystemWatcher.cs
index b7ad29d0c08..9c003a80e5a 100644
--- a/mcs/class/System/System.IO/FileSystemWatcher.cs
+++ b/mcs/class/System/System.IO/FileSystemWatcher.cs
@@ -42,7 +42,7 @@ using System.Threading.Tasks;
 namespace System.IO {
 	[DefaultEvent("Changed")]
 	[IODescription ("")]
-	public class FileSystemWatcher : Component, ISupportInitialize {
+	public partial class FileSystemWatcher : Component, ISupportInitialize {
 
 		#region Fields
 
diff --git a/mcs/class/System/System.IO/FileSystemWatcher.platformnotsupported.cs b/mcs/class/System/System.IO/FileSystemWatcher.platformnotsupported.cs
new file mode 100644
index 00000000000..0386d4134cb
--- /dev/null
+++ b/mcs/class/System/System.IO/FileSystemWatcher.platformnotsupported.cs
@@ -0,0 +1,163 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// 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.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.IO.Enumeration;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace System.IO
+{
+    public partial class FileSystemWatcher : Component, ISupportInitialize
+    {
+        internal const string EXCEPTION_MESSAGE = "System.IO.FileSystemWatcher is not supported on the current platform.";
+
+        public FileSystemWatcher ()
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        public FileSystemWatcher (string path)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        public FileSystemWatcher (string path, string filter)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        public NotifyFilters NotifyFilter
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public Collection<string> Filters => throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+
+        public bool EnableRaisingEvents
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public string Filter
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public bool IncludeSubdirectories
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public int InternalBufferSize
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public string Path
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public event FileSystemEventHandler Changed
+        {
+            add { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            remove { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public event FileSystemEventHandler Created
+        {
+            add { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            remove { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public event FileSystemEventHandler Deleted
+        {
+            add { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            remove { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public event ErrorEventHandler Error
+        {
+            add { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            remove { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public event RenamedEventHandler Renamed
+        {
+            add { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            remove { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public WaitForChangedResult WaitForChanged (WatcherChangeTypes changeType) => throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+
+        public WaitForChangedResult WaitForChanged (WatcherChangeTypes changeType, int timeout)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        public override ISite Site
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public ISynchronizeInvoke SynchronizingObject
+        {
+            get { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+            set { throw new PlatformNotSupportedException (EXCEPTION_MESSAGE); }
+        }
+
+        public void BeginInit ()
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        public void EndInit ()
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        [SuppressMessage ("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#", Justification = "Changing from protected to private would be a breaking change")]
+        protected void OnChanged (FileSystemEventArgs e)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        [SuppressMessage ("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#", Justification = "Changing from protected to private would be a breaking change")]
+        protected void OnCreated (FileSystemEventArgs e)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        [SuppressMessage ("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#", Justification = "Changing from protected to private would be a breaking change")]
+        protected void OnDeleted(FileSystemEventArgs e)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        [SuppressMessage ("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#", Justification = "Changing from protected to private would be a breaking change")]
+        protected void OnError (ErrorEventArgs e)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+
+        [SuppressMessage ("Microsoft.Security", "CA2109:ReviewVisibleEventHandlers", MessageId = "0#", Justification = "Changing from protected to private would be a breaking change")]
+        protected void OnRenamed (RenamedEventArgs e)
+        {
+            throw new PlatformNotSupportedException (EXCEPTION_MESSAGE);
+        }
+    }
+}
\ No newline at end of file