feat: add drawer and dialog headless test.

tests/HeadlessTest.Ursa/Controls/OverlayShared/Dialog_Primary_Focus/Test.cs

@@ -9,12 +9,45 @@ namespace HeadlessTest.Ursa.Controls.OverlayShared.Dialog_Primary_Focus;
 public class Test
 {
     [AvaloniaFact]
-    public void Normal_Dialog_Focus_On_Border()
+    public async Task Normal_Drawer_Focus_On_Border()
+    {
+        var ursaWindow = new TestWindow();
+        ursaWindow.Show();
+        ursaWindow.InvokeNormalDrawer();
+        Dispatcher.UIThread.RunJobs();
+        await Task.Delay(500);
+        var dialog = ursaWindow.GetVisualDescendants().OfType<DefaultDrawerControl>().FirstOrDefault();
+        Assert.NotNull(dialog);
+        var border = dialog.GetVisualDescendants().OfType<Border>().FirstOrDefault(a=>a.Name == "PART_Root");
+        var text = dialog.GetVisualDescendants().OfType<TextBox>().FirstOrDefault();
+        Assert.True(border?.IsFocused);
+        Assert.False(text?.IsFocused);
+    }
+    
+    [AvaloniaFact]
+    public async Task Focus_Drawer_Focus_On_Primary()
+    {
+        var ursaWindow = new TestWindow();
+        ursaWindow.Show();
+        ursaWindow.InvokeFocusDrawer();
+        Dispatcher.UIThread.RunJobs();
+        await Task.Delay(500);
+        var dialog = ursaWindow.GetVisualDescendants().OfType<DefaultDrawerControl>().FirstOrDefault();
+        Assert.NotNull(dialog);
+        var border = dialog.GetVisualDescendants().OfType<Border>().FirstOrDefault(a=>a.Name == "PART_Root");
+        var text = dialog.GetVisualDescendants().OfType<TextBox>().FirstOrDefault();
+        Assert.False(border?.IsFocused);
+        Assert.True(text?.IsFocused);
+    }
+    
+    [AvaloniaFact]
+    public async Task Normal_Dialog_Focus_On_Border()
     {
         var ursaWindow = new TestWindow();
         ursaWindow.Show();
         ursaWindow.InvokeNormalDialog();
         Dispatcher.UIThread.RunJobs();
+        await Task.Delay(100);
         var dialog = ursaWindow.GetVisualDescendants().OfType<DefaultDialogControl>().FirstOrDefault();
         Assert.NotNull(dialog);
         var border = dialog.GetVisualDescendants().OfType<Border>().FirstOrDefault(a=>a.Name == "PART_Border");
@@ -24,12 +57,13 @@ public class Test
     }
     
     [AvaloniaFact]
-    public void Focus_Dialog_Focus_On_Primary()
+    public async Task Focus_Dialog_Focus_On_Primary() 
     {
         var ursaWindow = new TestWindow();
         ursaWindow.Show();
         ursaWindow.InvokeFocusDialog();
         Dispatcher.UIThread.RunJobs();
+        await Task.Delay(100);
         var dialog = ursaWindow.GetVisualDescendants().OfType<DefaultDialogControl>().FirstOrDefault();
         Assert.NotNull(dialog);
         var border = dialog.GetVisualDescendants().OfType<Border>().FirstOrDefault(a=>a.Name == "PART_Border");

tests/HeadlessTest.Ursa/Controls/OverlayShared/Dialog_Primary_Focus/TestWindow.axaml.cs

@@ -1,4 +1,5 @@
 using Ursa.Controls;
+using Ursa.Controls.Options;
 
 namespace HeadlessTest.Ursa.Controls.OverlayShared.Dialog_Primary_Focus;
 
@@ -9,15 +10,27 @@ public partial class TestWindow : UrsaWindow
         InitializeComponent();
     }
 
+    public void InvokeNormalDrawer()
+    {
+        Drawer.ShowModal<NormalDialog, object>("Hello World",
+            options: new DrawerOptions() { TopLevelHashCode = GetHashCode() });
+    }
+
+    public void InvokeFocusDrawer()
+    {
+        Drawer.ShowModal<FocusDialog, object>("Hello World",
+            options: new DrawerOptions() { TopLevelHashCode = GetHashCode() });
+    }
+    
     public void InvokeNormalDialog()
     {
         OverlayDialog.ShowModal<NormalDialog, object>("Hello World",
-            options: new OverlayDialogOptions { TopLevelHashCode = GetHashCode() });
+            options: new OverlayDialogOptions() { TopLevelHashCode = GetHashCode() });
     }
 
     public void InvokeFocusDialog()
     {
         OverlayDialog.ShowModal<FocusDialog, object>("Hello World",
-            options: new OverlayDialogOptions { TopLevelHashCode = GetHashCode() });
+            options: new OverlayDialogOptions() { TopLevelHashCode = GetHashCode() });
     }
 }