test

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [0.61.0] - Unreleased
+
+### Added
+
+- Added App.get_default_screen
+
 ## [0.60.1] - 2024-05-15
 
 ### Fixed

tests/test_screens.py

@@ -496,3 +496,20 @@ async def action_exit(self) -> None:
     with pytest.raises(NoActiveWorker):
         async with app.run_test() as pilot:
             await pilot.press("x", "y")
+
+
+async def test_default_custom_screen() -> None:
+    """Test we can override the default screen."""
+
+    class CustomScreen(Screen):
+        pass
+
+    class CustomScreenApp(App):
+        def get_default_screen(self) -> Screen:
+            return CustomScreen()
+
+    app = CustomScreenApp()
+    async with app.run_test():
+        assert len(app.screen_stack) == 1
+        assert isinstance(app.screen_stack[0], CustomScreen)
+        assert app.screen is app.screen_stack[0]