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898de5a69c
* Fix bindings not firing when ListView is empty * Regression test for empty ListView bindings not working * Update changelog
61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
from textual.app import App, ComposeResult
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from textual.binding import Binding
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from textual.widgets import Label, ListItem, ListView
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class MyListView(ListView):
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"""Test child class of a ListView."""
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BINDINGS = [Binding(key="s", action="set", description="Set")]
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def __init__(self, items: int = 0) -> None:
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super().__init__()
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self._items = items
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self.action_fired = False
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def compose(self) -> ComposeResult:
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"""Compose the child widgets."""
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for n in range(self._items):
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yield ListItem(Label(f"This is item {n}"))
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def action_set(self) -> None:
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self.action_fired = True
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class ListViewApp(App[None]):
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"""ListView test app."""
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def __init__(self, items: int = 0) -> None:
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super().__init__()
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self._items = items
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def compose(self) -> ComposeResult:
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"""Compose the child widgets."""
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yield MyListView(self._items)
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async def test_empty_inherited_list_view() -> None:
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"""An empty self-populating inherited ListView should work as expected."""
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async with ListViewApp().run_test() as pilot:
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await pilot.press("tab")
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assert pilot.app.query_one(MyListView).index is None
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await pilot.press("down")
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assert pilot.app.query_one(MyListView).index is None
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async def test_populated_inherited_list_view() -> None:
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"""A self-populating inherited ListView should work as normal."""
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async with ListViewApp(30).run_test() as pilot:
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await pilot.press("tab")
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assert pilot.app.query_one(MyListView).index == 0
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await pilot.press("down")
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assert pilot.app.query_one(MyListView).index == 1
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async def test_actions_work_when_list_view_empty() -> None:
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"""Regression test for https://github.com/Textualize/textual/issues/2265"""
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async with ListViewApp().run_test() as pilot:
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await pilot.press("tab", "s")
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list_view = pilot.app.query_one(MyListView)
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assert list_view.action_fired
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