Files
textual/tests/test_binding_inheritance.py
2022-12-12 21:04:56 +00:00

94 lines
3.3 KiB
Python

import pytest
from textual.app import App, ComposeResult
from textual.widgets import Static
from textual.screen import Screen
from textual.binding import Binding
##############################################################################
class NoBindings(App[None]):
"""An app with zero bindings."""
async def test_just_app_no_bindings() -> None:
"""An app with no bindings should have no bindings, other than ctrl+c."""
async with NoBindings().run_test() as pilot:
assert list(pilot.app._bindings.keys.keys()) == ["ctrl+c"]
##############################################################################
class AlphaBinding(App[None]):
"""An app with a simple alpha key binding."""
BINDINGS = [Binding("a", "a", "a")]
async def test_just_app_alpha_binding() -> None:
"""An app with a single binding should have just the one binding."""
async with AlphaBinding().run_test() as pilot:
assert sorted(pilot.app._bindings.keys.keys()) == sorted(["ctrl+c", "a"])
##############################################################################
class ScreenNoBindings(Screen):
"""A screen with no added bindings."""
class AppWithScreenNoBindings(App[None]):
"""An app with no extra bindings but with a custom screen."""
SCREENS = {"main": ScreenNoBindings}
def on_mount(self) -> None:
self.push_screen("main")
@pytest.mark.xfail(
reason="Screen is incorrectly starting with bindings for movement keys [issue#1343]"
)
async def test_app_screen_no_bindings() -> None:
"""An screen with no bindings should have no bindings."""
async with AppWithScreenNoBindings().run_test() as pilot:
assert list(pilot.app.screen._bindings.keys.keys()) == []
##############################################################################
class ScreenWithBindings(Screen):
"""A screen with a simple alpha key binding."""
BINDINGS = [Binding("a", "a", "a")]
class AppWithScreenThatHasABinding(App[None]):
"""An app with no extra bindings but with a custom screen with a binding."""
SCREENS = {"main": ScreenWithBindings}
def on_mount(self) -> None:
self.push_screen("main")
@pytest.mark.xfail(
reason="Screen is incorrectly starting with bindings for movement keys [issue#1343]"
)
async def test_app_screen_with_bindings() -> None:
"""An app with a screen and a binding should only have ctrl+c as a binding."""
async with AppWithScreenThatHasABinding().run_test() as pilot:
assert list(pilot.app.screen._bindings.keys.keys()) == ["a"]
##############################################################################
class NoBindingsAndStaticWidgetNoBindings(App[None]):
"""An app with no bindings, enclosing a widget with no bindings."""
def compose(self) -> ComposeResult:
yield Static("Poetry! They should have sent a poet.")
@pytest.mark.xfail(
reason="Static is incorrectly starting with bindings for movement keys [issue#1343]"
)
async def test_just_app_no_bindings_widget_no_bindings() -> None:
"""A widget with no bindings should have no bindings. Its app should have just ctrl+c"""
async with NoBindingsAndStaticWidgetNoBindings().run_test() as pilot:
assert list(pilot.app._bindings.keys.keys()) == ["ctrl+c"]
assert list(pilot.app.screen.query_one(Static)._bindings.keys.keys()) == []