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from textual.app import App
from textual.command import CommandList, CommandPalette, Hit, Hits, Provider
class SimpleSource(Provider):
async def search(self, query: str) -> Hits:
def goes_nowhere_does_nothing() -> None:
pass
for _ in range(100):
yield Hit(1, query, goes_nowhere_does_nothing, query)
class CommandPaletteApp(App[None]):
COMMANDS = {SimpleSource}
def on_mount(self) -> None:
self.action_command_palette()
async def test_initial_list_no_highlight() -> None:
"""When the list initially appears, the first item is highlghted."""
async with CommandPaletteApp().run_test() as pilot:
assert CommandPalette.is_open(pilot.app)
assert pilot.app.screen.query_one(CommandList).visible is False
await pilot.press("a")
assert pilot.app.screen.query_one(CommandList).visible is True
assert pilot.app.screen.query_one(CommandList).highlighted == 0
async def test_down_arrow_selects_an_item() -> None:
"""Typing in a search value then pressing down should select a command."""
async with CommandPaletteApp().run_test() as pilot:
assert CommandPalette.is_open(pilot.app)
assert pilot.app.screen.query_one(CommandList).visible is False
await pilot.press("a")
assert pilot.app.screen.query_one(CommandList).visible is True
assert pilot.app.screen.query_one(CommandList).highlighted == 0
await pilot.press("down")
assert pilot.app.screen.query_one(CommandList).highlighted == 1
async def test_enter_selects_an_item() -> None:
"""Typing in a search value then pressing enter should dismiss the command palette."""
async with CommandPaletteApp().run_test() as pilot:
assert CommandPalette.is_open(pilot.app)
assert pilot.app.screen.query_one(CommandList).visible is False
await pilot.press("a")
assert pilot.app.screen.query_one(CommandList).visible is True
assert pilot.app.screen.query_one(CommandList).highlighted == 0
await pilot.press("enter")
assert not CommandPalette.is_open(pilot.app)
assert not pilot.app.screen.query(CommandList)
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