Adds CanFocus/SetFocus test

UnitTests/View/MouseTests.cs

@@ -4,21 +4,20 @@ namespace Terminal.Gui.ViewTests;
 
 public class MouseTests (ITestOutputHelper output)
 {
-
     [Theory]
-    [InlineData(false, false, false)]
+    [InlineData (false, false, false)]
     [InlineData (true, false, true)]
     [InlineData (true, true, true)]
     public void MouseClick_SetsFocus_If_CanFocus (bool canFocus, bool setFocus, bool expectedHasFocus)
     {
-        var superView = new View () { CanFocus = true, Height = 1, Width = 15 };
-        var focusedView = new View () { CanFocus = true, Width = 1, Height = 1 };
-        var testView = new View () { CanFocus = canFocus, X = 4, Width = 4, Height = 1 };
+        var superView = new View { CanFocus = true, Height = 1, Width = 15 };
+        var focusedView = new View { CanFocus = true, Width = 1, Height = 1 };
+        var testView = new View { CanFocus = canFocus, X = 4, Width = 4, Height = 1 };
         superView.Add (focusedView, testView);
         superView.BeginInit ();
-        superView.EndInit (); 
-        
-        focusedView.SetFocus();
+        superView.EndInit ();
+
+        focusedView.SetFocus ();
 
         Assert.True (superView.HasFocus);
         Assert.True (focusedView.HasFocus);
@@ -29,8 +28,10 @@ public class MouseTests (ITestOutputHelper output)
             testView.SetFocus ();
         }
 
-        testView.OnMouseEvent (new MouseEvent () { X = 0, Y = 0, Flags = MouseFlags.Button1Clicked });
+        testView.OnMouseEvent (new() { X = 0, Y = 0, Flags = MouseFlags.Button1Clicked });
         Assert.True (superView.HasFocus);
-        Assert.Equal(expectedHasFocus, testView.HasFocus);
+        Assert.Equal (expectedHasFocus, testView.HasFocus);
     }
+
+    // TODO: Add more tests that ensure the above test works with positive adornments
 }