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35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
from textual.app import App, ComposeResult
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from textual.widgets import Label
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async def test_hide() -> None:
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"""Check that setting visibility produces Hide messages."""
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# https://github.com/Textualize/textual/issues/3460
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visibility: list[bool] = []
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class ShowHideLabel(Label):
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def on_show(self) -> None:
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visibility.append(True)
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def on_hide(self) -> None:
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visibility.append(False)
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class ShowHideApp(App[None]):
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BINDINGS = [("space", "toggle_label")]
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def compose(self) -> ComposeResult:
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yield ShowHideLabel("Here I am")
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def action_toggle_label(self) -> None:
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self.query_one(ShowHideLabel).visible = not self.query_one(
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ShowHideLabel
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).visible
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app = ShowHideApp()
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async with app.run_test() as pilot:
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assert visibility == [True]
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await pilot.press("space")
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assert visibility == [True, False]
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await pilot.press("space")
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assert visibility == [True, False, True]
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