Adding UI tests without assertions to easily test behavior

The intention is to eventually add some assertions, but we'll need to figure out what is relevant to assert on.

Author: nicolaihenriksen

tests/MaterialDesignThemes.UITests/WPF/TabControls/TabControlTests.cs

@@ -152,4 +152,56 @@ public async Task TabControl_ShouldRespectSelectedContentTemplate_WhenSetDirectl
 
         recorder.Success();
     }
+
+    [Test]
+    public async Task ScrollingTabs_UniformGrid()
+    {
+        await using var recorder = new TestRecorder(App);
+
+        //Arrange
+        const int numTabs = 10;
+        StringBuilder xaml = new("<TabControl>");
+        for (int i = 1; i <= numTabs; i++)
+        {
+            xaml.Append($"""
+                <TabItem Header="TAB {i}">
+                  <TextBlock Margin="8" Text="Tab {i}" />
+                </TabItem>
+                """);
+        }
+        xaml.Append("</TabControl>");
+        IVisualElement<TabControl> tabControl = await LoadXaml<TabControl>(xaml.ToString());
+
+        //Act
+
+        //Assert
+
+        recorder.Success();
+    }
+
+    [Test]
+    public async Task ScrollingTabs_VirtualizingStackPanel()
+    {
+        await using var recorder = new TestRecorder(App);
+
+        //Arrange
+        const int numTabs = 10;
+        StringBuilder xaml = new("<TabControl HorizontalContentAlignment=\"Left\">");
+        for (int i = 1; i <= numTabs; i++)
+        {
+            xaml.Append($"""
+                <TabItem Header="TAB {i}">
+                  <TextBlock Margin="8" Text="Tab {i}" />
+                </TabItem>
+                """);
+        }
+        xaml.Append("</TabControl>");
+        IVisualElement<TabControl> tabControl = await LoadXaml<TabControl>(xaml.ToString());
+
+        //Act
+
+        //Assert
+
+        recorder.Success();
+    }
 }