Update NUnit to v4 (#20372)

src/Headless/Avalonia.Headless.NUnit/Avalonia.Headless.NUnit.csproj

@@ -5,8 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <!-- Use lower minor version, as it is supposed to be compatible  -->
-    <PackageReference Include="NUnit" Version="3.13.0" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
   </ItemGroup>
 
   <ItemGroup>

tests/Avalonia.Headless.NUnit.PerAssembly.UnitTests/Avalonia.Headless.NUnit.PerAssembly.UnitTests.csproj

@@ -12,8 +12,8 @@
   <Import Project="..\..\build\SharedVersion.props" />
 
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="5.2.0" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="6.0.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
   </ItemGroup>
 

tests/Avalonia.Headless.NUnit.PerTest.UnitTests/Avalonia.Headless.NUnit.PerTest.UnitTests.csproj

@@ -12,8 +12,8 @@
   <Import Project="..\..\build\SharedVersion.props" />
 
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="5.2.0" />
+    <PackageReference Include="NUnit" Version="4.4.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="6.0.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
   </ItemGroup>
 

tests/Avalonia.Headless.UnitTests/AssertHelper.cs

@@ -0,0 +1,52 @@
+#nullable enable
+
+namespace Avalonia.Headless.UnitTests;
+
+internal static class AssertHelper
+{
+    public static void True(bool condition, string? message = null)
+    {
+#if NUNIT
+        Assert.That(condition, Is.True, message);
+#elif XUNIT
+        Assert.True(condition, message);
+#endif
+    }
+
+    public static void False(bool condition, string? message = null)
+    {
+#if NUNIT
+        Assert.That(condition, Is.False, message);
+#elif XUNIT
+        Assert.False(condition, message);
+#endif
+    }
+
+    public static void NotNull(object? value)
+    {
+#if NUNIT
+        Assert.That(value, Is.Not.Null);
+#elif XUNIT
+        Assert.NotNull(value);
+#endif
+    }
+
+    public static void Equal<T>(T expected, T actual)
+    {
+#if NUNIT
+        Assert.That(expected, Is.EqualTo(actual));
+#elif XUNIT
+        Assert.Equal(expected, actual);
+#endif
+    }
+
+    public static void Same(object? expected, object? actual)
+    {
+#if NUNIT
+        Assert.That(expected, Is.SameAs(actual));
+#elif XUNIT
+        Assert.Same(expected, actual);
+#endif
+    }
+
+}

tests/Avalonia.Headless.UnitTests/InputTests.cs

@@ -34,13 +34,13 @@ public class InputTests
     }
     
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
     public void Should_Click_Button_On_Window()
     {
-        Assert.True(_setupApp == Application.Current);
+        AssertHelper.Same(_setupApp, Application.Current);
         var buttonClicked = false;
         var button = new Button
         {
@@ -56,11 +56,11 @@ public class InputTests
         _window.MouseDown(new Point(50, 50), MouseButton.Left);
         _window.MouseUp(new Point(50, 50), MouseButton.Left);
 
-        Assert.True(buttonClicked);
+        AssertHelper.True(buttonClicked);
     }
     
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -69,11 +69,11 @@ public class InputTests
         var newWindowPosition = new PixelPoint(100, 150);
         _window.Position = newWindowPosition;
         _window.Show();
-        Assert.True(_window.Position == newWindowPosition);
+        AssertHelper.Equal(newWindowPosition, _window.Position);
     }
 
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -100,7 +100,7 @@ public class InputTests
         _window.MouseDown(translatePoint.Value, MouseButton.Left, RawInputModifiers.None);
         _window.MouseUp(translatePoint.Value, MouseButton.Left, RawInputModifiers.None);
 
-        Assert.True(clickCount == 1);
+        AssertHelper.Equal(1, clickCount);
     }
 
 #if NUNIT
@@ -110,7 +110,7 @@ public class InputTests
     public void Dispose()
 #endif
     {
-        Assert.True(_setupApp == Application.Current);
+        AssertHelper.Same(_setupApp, Application.Current);
 
         Dispatcher.UIThread.VerifyAccess();
         _window.Close();

tests/Avalonia.Headless.UnitTests/IsolationTests.cs

@@ -10,7 +10,7 @@ public class IsolationTests
     private static WeakReference<Dispatcher> s_previousDispatcherRef;
 
 #if NUNIT
-    [AvaloniaTheory, Timeout(10000)]
+    [AvaloniaTheory]
     [TestCase(1), TestCase(2), TestCase(3)]
 #elif XUNIT
     [AvaloniaTheory]
@@ -37,23 +37,23 @@ public class IsolationTests
                 GC.WaitForPendingFinalizers();
                 GC.Collect();
 
-                Assert.False(s_previousAppRef.TryGetTarget(out var previousApp),
+                AssertHelper.False(s_previousAppRef.TryGetTarget(out var previousApp),
                     "Previous Application instance should have been collected.");
-                Assert.False(s_previousDispatcherRef.TryGetTarget(out var previousDispatcher),
+                AssertHelper.False(s_previousDispatcherRef.TryGetTarget(out var previousDispatcher),
                     "Previous Dispatcher instance should have been collected.");
 
-                Assert.False(previousApp == currentApp);
-                Assert.False(previousDispatcher == currentDispatcher);
+                AssertHelper.False(previousApp == currentApp);
+                AssertHelper.False(previousDispatcher == currentDispatcher);
             }
             else if (isolationLevel == AvaloniaTestIsolationLevel.PerAssembly)
             {
-                Assert.True(s_previousAppRef.TryGetTarget(out var previousApp),
+                AssertHelper.True(s_previousAppRef.TryGetTarget(out var previousApp),
                     "Previous Application instance should still be alive.");
-                Assert.True(s_previousDispatcherRef.TryGetTarget(out var previousDispatcher),
+                AssertHelper.True(s_previousDispatcherRef.TryGetTarget(out var previousDispatcher),
                     "Previous Dispatcher instance should still be alive.");
 
-                Assert.True(previousApp == currentApp);
-                Assert.True(previousDispatcher == currentDispatcher);
+                AssertHelper.True(previousApp == currentApp);
+                AssertHelper.True(previousDispatcher == currentDispatcher);
             }
             else
             {

tests/Avalonia.Headless.UnitTests/LeakTests.cs

@@ -16,7 +16,7 @@ public class LeakTests
 
 #if NUNIT
     [TestCaseSource(nameof(TestData))]
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [MemberData(nameof(TestData))]
     [AvaloniaTheory]
@@ -45,7 +45,7 @@ public class LeakTests
         // Either previous font manager is collected (IsAlive == false), or it is the same as current (shared isolation mode).
         if (s_previousFontManager is not null && s_previousFontManager.Target != fontManager.Target)
         {
-            Assert.False(s_previousFontManager.IsAlive);
+            AssertHelper.False(s_previousFontManager.IsAlive);
         }
 
         s_previousFontManager = fontManager;

tests/Avalonia.Headless.UnitTests/RenderingTests.cs

@@ -1,18 +1,16 @@
 using System.Collections.ObjectModel;
 using System.Threading.Tasks;
 using Avalonia.Controls;
-using Avalonia.Controls.Shapes;
 using Avalonia.Layout;
 using Avalonia.Media;
 using Avalonia.Rendering.Composition;
-using Avalonia.Threading;
 
 namespace Avalonia.Headless.UnitTests;
 
 public class RenderingTests
 {
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -37,11 +35,11 @@ public class RenderingTests
 
         var frame = window.CaptureRenderedFrame();
 
-        Assert.NotNull(frame);
+        AssertHelper.NotNull(frame);
     }
 
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -73,11 +71,11 @@ public class RenderingTests
 
         var frame = window.CaptureRenderedFrame();
 
-        Assert.NotNull(frame);
+        AssertHelper.NotNull(frame);
     }
     
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -104,11 +102,11 @@ public class RenderingTests
 
         var frame = window.CaptureRenderedFrame();
 
-        Assert.NotNull(frame);
+        AssertHelper.NotNull(frame);
     }
 
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -136,13 +134,13 @@ public class RenderingTests
         window.Show();
 
         var frame = window.CaptureRenderedFrame();
-        Assert.NotNull(frame);
+        AssertHelper.NotNull(frame);
     }
 
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
-    [AvaloniaFact(Timeout = 10000)]
+    [AvaloniaFact]
 #endif
     public async Task Should_Render_To_A_Compositor_Snapshot_Capture()
     {
@@ -164,10 +162,8 @@ public class RenderingTests
         var compositionVisual = ElementComposition.GetElementVisual(window)!;
         var snapshot = await compositionVisual.Compositor.CreateCompositionVisualSnapshot(compositionVisual, 1);
 
-        Assert.NotNull(snapshot);
-        // ReSharper disable CompareOfFloatsByEqualityOperator
-        Assert.True(100 == snapshot.Size.Width);
-        Assert.True(100 == snapshot.Size.Height);
-        // ReSharper restore CompareOfFloatsByEqualityOperator
+        AssertHelper.NotNull(snapshot);
+        AssertHelper.Equal(100, snapshot.Size.Width);
+        AssertHelper.Equal(100, snapshot.Size.Height);
     }
 }

tests/Avalonia.Headless.UnitTests/ServicesTests.cs

@@ -1,17 +1,11 @@
-using System;
-using System.Reactive.Disposables;
-using System.Threading;
 using Avalonia.Controls;
-using Avalonia.Input;
-using Avalonia.Layout;
-using Avalonia.Threading;
 
 namespace Avalonia.Headless.UnitTests;
 
 public class ServicesTests
 {
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -19,11 +13,11 @@ public class ServicesTests
     {
         var window = new Window();
         var screens = window.Screens;
-        Assert.NotNull(screens);
+        AssertHelper.NotNull(screens);
 
         var currentScreenFromWindow = screens.ScreenFromWindow(window);
         var currentScreenFromVisual = screens.ScreenFromVisual(window);
 
-        Assert.True(ReferenceEquals(currentScreenFromWindow, currentScreenFromVisual));
+        AssertHelper.Same(currentScreenFromWindow, currentScreenFromVisual);
     }
 }

tests/Avalonia.Headless.UnitTests/ThreadingTests.cs

@@ -10,7 +10,7 @@ namespace Avalonia.Headless.UnitTests;
 public class ThreadingTests
 {
 #if NUNIT
-    [AvaloniaTest, Timeout(10000)]
+    [AvaloniaTest]
 #elif XUNIT
     [AvaloniaFact]
 #endif
@@ -31,20 +31,20 @@ public class ThreadingTests
     }
     
 #if NUNIT
-    [AvaloniaTheory, Timeout(10000), TestCase(1), TestCase(10), TestCase(100)]
+    [AvaloniaTheory, TestCase(1), TestCase(10), TestCase(100)]
 #elif XUNIT
-    [AvaloniaTheory(Timeout = 10000), InlineData(1), InlineData(10), InlineData(100)]
+    [AvaloniaTheory, InlineData(1), InlineData(10), InlineData(100)]
 #endif
     public async Task DispatcherTimer_Works_On_The_Same_Thread(int interval)
     {
-        Assert.NotNull(SynchronizationContext.Current);
+        AssertHelper.NotNull(SynchronizationContext.Current);
         ValidateTestContext();
         var currentThread = Thread.CurrentThread;
 
         await Task.Delay(100);
 
         ValidateTestContext();
-        Assert.True(currentThread == Thread.CurrentThread);
+        AssertHelper.Same(currentThread, Thread.CurrentThread);
 
         var tcs = new TaskCompletionSource();
 
@@ -53,7 +53,7 @@ public class ThreadingTests
             try
             {
                 ValidateTestContext();
-                Assert.True(currentThread == Thread.CurrentThread);
+                AssertHelper.Same(currentThread, Thread.CurrentThread);
                 tcs.SetResult();
             }
             catch (Exception ex)
@@ -70,7 +70,7 @@ public class ThreadingTests
 #if NUNIT
         var testName = TestContext.CurrentContext.Test.Name;
         // Test.Name also includes parameters.
-        Assert.AreEqual(testName.Split('(').First(), runningMethodName); 
+        AssertHelper.Equal(testName.Split('(').First(), runningMethodName);
 #endif
     }
 }