Add timeouts to the tests

tests/Avalonia.Headless.NUnit.UnitTests/AssemblyInfo.cs

@@ -1,7 +1,5 @@
 global using NUnit.Framework;
-global using AvaloniaFactAttribute = Avalonia.Headless.NUnit.AvaloniaTestAttribute;
-global using AvaloniaTheoryAttribute = Avalonia.Headless.NUnit.AvaloniaTheoryAttribute;
-global using InlineDataAttribute = NUnit.Framework.TestCaseAttribute; 
+global using Avalonia.Headless.NUnit;
 
 using Avalonia.Headless;
 using Avalonia.Headless.UnitTests;

tests/Avalonia.Headless.UnitTests/InputTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Reactive.Disposables;
+using System.Threading;
 using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Layout;
@@ -31,7 +32,11 @@ public class InputTests
         };
     }
     
-    [AvaloniaFact]
+#if NUNIT
+    [AvaloniaTest, Timeout(10000)]
+#elif XUNIT
+    [AvaloniaFact(Timeout = 10000)]
+#endif
     public void Should_Click_Button_On_Window()
     {
         Assert.True(_setupApp == Application.Current);

tests/Avalonia.Headless.UnitTests/RenderingTests.cs

@@ -7,7 +7,11 @@ namespace Avalonia.Headless.UnitTests;
 
 public class RenderingTests
 {
-    [AvaloniaFact]
+#if NUNIT
+    [AvaloniaTest, Timeout(10000)]
+#elif XUNIT
+    [AvaloniaFact(Timeout = 10000)]
+#endif
     public void Should_Render_Last_Frame_To_Bitmap()
     {
         var window = new Window

tests/Avalonia.Headless.UnitTests/ThreadingTests.cs

@@ -7,7 +7,11 @@ namespace Avalonia.Headless.UnitTests;
 
 public class ThreadingTests
 {
-    [AvaloniaFact]
+#if NUNIT
+    [AvaloniaTest, Timeout(10000)]
+#elif XUNIT
+    [AvaloniaFact(Timeout = 10000)]
+#endif
     public void Should_Be_On_Dispatcher_Thread()
     {
         Dispatcher.UIThread.VerifyAccess();
@@ -20,10 +24,11 @@ public class ThreadingTests
     //     Dispatcher.UIThread.Post(() => throw new InvalidOperationException(), DispatcherPriority.Default);
     // }
 
-    [AvaloniaTheory]
-    [InlineData(1)]
-    [InlineData(10)]
-    [InlineData(100)]
+#if NUNIT
+    [AvaloniaTheory, Timeout(10000), TestCase(1), TestCase(10), TestCase(100)]
+#elif XUNIT
+    [AvaloniaTheory(Timeout = 10000), InlineData(1), InlineData(10), InlineData(100)]
+#endif
     public async Task DispatcherTimer_Works_On_The_Same_Thread(int interval)
     {
         await Task.Delay(100);