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from textual import events
from textual.app import App
async def test_run_test() -> None:
"""Test the run_test context manager."""
keys_pressed: list[str] = []
class TestApp(App[str]):
def on_key(self, event: events.Key) -> None:
keys_pressed.append(event.key)
app = TestApp()
async with app.run_test() as pilot:
assert str(pilot) in (
"<Pilot app=TestApp(title='TestApp', classes={'-dark-mode'}, pseudo_classes={'dark', 'focus'})>",
"<Pilot app=TestApp(title='TestApp', classes={'-dark-mode'}, pseudo_classes={'focus', 'dark'})>",
)
await pilot.press("tab", *"foo")
await pilot.exit("bar")
assert app.return_value == "bar"
assert keys_pressed == ["tab", "f", "o", "o"]
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