remove some pauses

src/textual/pilot.py

@@ -34,13 +34,16 @@ class Pilot(Generic[ReturnType]):
         if keys:
             await self._app._press_keys(keys)
 
-    async def pause(self, delay: float = 50 / 1000) -> None:
+    async def pause(self, delay: float | None = None) -> None:
         """Insert a pause.
 
         Args:
-            delay: Seconds to pause. Defaults to 50ms.
+            delay: Seconds to pause, or None to wait for cpu idle. Defaults to None.
         """
         # These sleep zeros, are to force asyncio to give up a time-slice,
+        if delay is None:
+            await wait_for_idle(0)
+        else:
             await asyncio.sleep(delay)
 
     async def wait_for_animation(self) -> None:

tests/listview/test_inherit_listview.py

@@ -31,10 +31,8 @@ async def test_empty_inherited_list_view() -> None:
     """An empty self-populating inherited ListView should work as expected."""
     async with ListViewApp().run_test() as pilot:
         await pilot.press("tab")
-        await pilot.pause(2 / 100)
         assert pilot.app.query_one(MyListView).index is None
         await pilot.press("down")
-        await pilot.pause(2 / 100)
         assert pilot.app.query_one(MyListView).index is None
 
 
@@ -42,8 +40,6 @@ async def test_populated_inherited_list_view() -> None:
     """A self-populating inherited ListView should work as normal."""
     async with ListViewApp(30).run_test() as pilot:
         await pilot.press("tab")
-        await pilot.pause(2 / 100)
         assert pilot.app.query_one(MyListView).index == 0
         await pilot.press("down")
-        await pilot.pause(2 / 100)
         assert pilot.app.query_one(MyListView).index == 1

tests/test_auto_pilot.py

@@ -14,7 +14,6 @@ def test_auto_pilot() -> None:
     async def auto_pilot(pilot: Pilot) -> None:
 
         await pilot.press("tab", *"foo")
-        await pilot.pause(1 / 100)
         await pilot.exit("bar")
 
     app = TestApp()

tests/test_binding_inheritance.py

@@ -238,7 +238,7 @@ async def test_pressing_alpha_on_app() -> None:
     """Test that pressing the alpha key, when it's bound on the app, results in an action fire."""
     async with AppWithMovementKeysBound().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALPHAS)
-        await pilot.pause(2 / 100)
+        await pilot.pause()
         assert pilot.app.pressed_keys == [*AppKeyRecorder.ALPHAS]
 
 
@@ -246,7 +246,7 @@ async def test_pressing_movement_keys_app() -> None:
     """Test that pressing the movement keys, when they're bound on the app, results in an action fire."""
     async with AppWithMovementKeysBound().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+        await pilot.pause()
         pilot.app.all_recorded()
 
 
@@ -284,7 +284,7 @@ async def test_focused_child_widget_with_movement_bindings() -> None:
     """A focused child widget with movement bindings should handle its own actions."""
     async with AppWithWidgetWithBindings().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+
         pilot.app.all_recorded("locally_")
 
 
@@ -331,7 +331,7 @@ async def test_focused_child_widget_with_movement_bindings_on_screen() -> None:
     """A focused child widget, with movement bindings in the screen, should trigger screen actions."""
     async with AppWithScreenWithBindingsWidgetNoBindings().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+
         pilot.app.all_recorded("screenly_")
 
 
@@ -374,7 +374,7 @@ async def test_contained_focused_child_widget_with_movement_bindings_on_screen()
     """A contained focused child widget, with movement bindings in the screen, should trigger screen actions."""
     async with AppWithScreenWithBindingsWrappedWidgetNoBindings().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+
         pilot.app.all_recorded("screenly_")
 
 
@@ -413,7 +413,7 @@ async def test_focused_child_widget_with_movement_bindings_no_inherit() -> None:
     """A focused child widget with movement bindings and inherit_bindings=False should handle its own actions."""
     async with AppWithWidgetWithBindingsNoInherit().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+
         pilot.app.all_recorded("locally_")
 
 
@@ -465,7 +465,7 @@ async def test_focused_child_widget_no_inherit_with_movement_bindings_on_screen(
     """A focused child widget, that doesn't inherit bindings, with movement bindings in the screen, should trigger screen actions."""
     async with AppWithScreenWithBindingsWidgetNoBindingsNoInherit().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
+
         pilot.app.all_recorded("screenly_")
 
 
@@ -520,7 +520,6 @@ async def test_focused_child_widget_no_inherit_empty_bindings_with_movement_bind
     """A focused child widget, that doesn't inherit bindings and sets BINDINGS empty, with movement bindings in the screen, should trigger screen actions."""
     async with AppWithScreenWithBindingsWidgetEmptyBindingsNoInherit().run_test() as pilot:
         await pilot.press(*AppKeyRecorder.ALL_KEYS)
-        await pilot.pause(2 / 100)
         pilot.app.all_recorded("screenly_")
 
 
@@ -602,7 +601,6 @@ async def test_overlapping_priority_bindings() -> None:
     """Test an app stack with overlapping bindings."""
     async with PriorityOverlapApp().run_test() as pilot:
         await pilot.press(*"0abcdef")
-        await pilot.pause(2 / 100)
         assert pilot.app.pressed_keys == [
             "widget_0",
             "app_a",

tests/test_dark_toggle.py

@@ -40,5 +40,4 @@ async def test_toggle_dark_in_action() -> None:
     """It should be possible to toggle dark mode with an action."""
     async with OnMountDarkSwitch().run_test() as pilot:
         await pilot.press("d")
-        await pilot.pause(2 / 100)
         assert not pilot.app.dark

tests/test_test_runner.py

@@ -16,7 +16,6 @@ async def test_run_test() -> None:
             str(pilot) == "<Pilot app=TestApp(title='TestApp', classes={'-dark-mode'})>"
         )
         await pilot.press("tab", *"foo")
-        await pilot.pause(1 / 100)
         await pilot.exit("bar")
 
     assert app.return_value == "bar"

tests/tree/test_tree_messages.py

@@ -45,7 +45,6 @@ async def test_tree_node_selected_message() -> None:
     """Selecting a node should result in a selected message being emitted."""
     async with TreeApp().run_test() as pilot:
         await pilot.press("enter")
-        await pilot.pause(2 / 100)
         assert pilot.app.messages == ["NodeExpanded", "NodeSelected"]
 
 
@@ -53,7 +52,6 @@ async def test_tree_node_expanded_message() -> None:
     """Expanding a node should result in an expanded message being emitted."""
     async with TreeApp().run_test() as pilot:
         await pilot.press("enter")
-        await pilot.pause(2 / 100)
         assert pilot.app.messages == ["NodeExpanded", "NodeSelected"]
 
 
@@ -61,7 +59,6 @@ async def test_tree_node_collapsed_message() -> None:
     """Collapsing a node should result in a collapsed message being emitted."""
     async with TreeApp().run_test() as pilot:
         await pilot.press("enter", "enter")
-        await pilot.pause(2 / 100)
         assert pilot.app.messages == [
             "NodeExpanded",
             "NodeSelected",
@@ -74,5 +71,4 @@ async def test_tree_node_highlighted_message() -> None:
     """Highlighting a node should result in a highlighted message being emitted."""
     async with TreeApp().run_test() as pilot:
         await pilot.press("enter", "down")
-        await pilot.pause(2 / 100)
         assert pilot.app.messages == ["NodeExpanded", "NodeSelected", "NodeHighlighted"]