Simpler is better

src/PostIt/PostIt.Tests/AddCircleMemberDialogTests.cs

@@ -100,8 +100,6 @@ public class AddCircleMemberDialogTests
 
         context.Window = new MainWindow();
         context.App = (PostIt.App)Application.Current!;
-        context.App.DataTemplates.Clear();
-        context.App.DataTemplates.Add(new ViewLocator(sp));
         context.App.AttachMainWindow(context.Window);
         context.Window.Show();
 

src/PostIt/PostIt.Tests/MainPageButtonsTests.cs

@@ -114,11 +114,6 @@ public class MainPageButtonsTests
         var window = new MainWindow();
         var page = new MainPage { DataContext = vm };
         var app = (PostIt.App)Application.Current!;
-        if (vm.Services is not null)
-        {
-            app.DataTemplates.Clear();
-            app.DataTemplates.Add(new ViewLocator(vm.Services));
-        }
         app.AttachMainWindow(window);
         window.Show();
         window.NavRoot.PushAsync(page).GetAwaiter().GetResult();

src/PostIt/PostIt.Tests/PostAclDialogTests.cs

@@ -140,8 +140,6 @@ public class PostAclDialogTests
 
         var window = new MainWindow();
         var app = (App)Application.Current!;
-        app.DataTemplates.Clear();
-        app.DataTemplates.Add(new ViewLocator(sp));
         app.AttachMainWindow(window);
         window.Show();