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46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
from textual.app import App, ComposeResult
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from textual.widgets import ListView, ListItem, Label
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class MyListView(ListView):
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"""Test child class of a ListView."""
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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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for n in range(self._items):
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yield ListItem(Label(f"This is item {n}"))
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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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