simplified test

UnitTests/Views/ShortcutTests.cs

@@ -572,24 +572,15 @@ public class ShortcutTests
     }
 
     [Fact]
-    public void Changing_Key_Removes_Previous ()
+    public void Key_Changing_Removes_Previous ()
     {
-        var newActionCount = 0;
+        Shortcut shortcut = new Shortcut ();
 
-        Shortcut shortcut = new Shortcut (Key.N.WithCtrl, "New", () => newActionCount++);
-        Application.Current = new Toplevel ();
-        Application.Current.Add (shortcut);
-
-        Assert.Equal (0, newActionCount);
-        Assert.True (Application.OnKeyDown (Key.N.WithCtrl));
-        Assert.False (Application.OnKeyDown (Key.W.WithCtrl));
-        Assert.Equal (1, newActionCount);
-
-        shortcut.Key = Key.W.WithCtrl;
-        Assert.False (Application.OnKeyDown (Key.N.WithCtrl));
-        Assert.True (Application.OnKeyDown (Key.W.WithCtrl));
-        Assert.Equal (2, newActionCount);
+        shortcut.Key = Key.A;
+        Assert.Contains (Key.A, shortcut.KeyBindings.Bindings.Keys);
 
-        Application.Current.Dispose ();
+        shortcut.Key = Key.B;
+        Assert.DoesNotContain (Key.A, shortcut.KeyBindings.Bindings.Keys);
+        Assert.Contains (Key.B, shortcut.KeyBindings.Bindings.Keys);
     }
 }