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https://github.com/Textualize/textual.git
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e74941da15
It looks like "visible_content" might have turned up after the tests were added; so this adds testing for that to the tests (and gets coverage for ContentSwitcher to 100%).
110 lines
4.5 KiB
Python
110 lines
4.5 KiB
Python
from __future__ import annotations
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import pytest
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from textual.app import App, ComposeResult
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from textual.css.query import NoMatches
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from textual.widget import Widget
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from textual.widgets import ContentSwitcher
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class SwitcherApp(App[None]):
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def __init__(self, initial: str | None = None) -> None:
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super().__init__()
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self._initial = initial
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def compose(self) -> ComposeResult:
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with ContentSwitcher(initial=self._initial):
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for n in range(5):
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yield Widget(id=f"w{n}")
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async def test_no_initial_display() -> None:
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"""Test starting a content switcher with nothing shown."""
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async with SwitcherApp().run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current is None
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assert all(
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not child.display for child in pilot.app.query_one(ContentSwitcher).children
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)
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assert pilot.app.query_one(ContentSwitcher).visible_content is None
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async def test_initial_display() -> None:
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"""Test starting a content switcher with a widget initially shown."""
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async with SwitcherApp("w3").run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current == "w3"
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for child in pilot.app.query_one(ContentSwitcher).children:
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assert child.display is (child.id == "w3")
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assert pilot.app.query_one(
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ContentSwitcher
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).visible_content is pilot.app.query_one("#w3")
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async def test_no_initial_display_then_set() -> None:
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"""Test starting a content switcher with nothing shown then setting the display."""
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async with SwitcherApp().run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current is None
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assert all(
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not child.display for child in pilot.app.query_one(ContentSwitcher).children
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)
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assert pilot.app.query_one(ContentSwitcher).visible_content is None
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pilot.app.query_one(ContentSwitcher).current = "w3"
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assert pilot.app.query_one(ContentSwitcher).current == "w3"
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for child in pilot.app.query_one(ContentSwitcher).children:
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assert child.display is (child.id == "w3")
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assert pilot.app.query_one(
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ContentSwitcher
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).visible_content is pilot.app.query_one("#w3")
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async def test_initial_display_then_change() -> None:
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"""Test starting a content switcher with a widget initially shown then changing it."""
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async with SwitcherApp("w3").run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current == "w3"
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for child in pilot.app.query_one(ContentSwitcher).children:
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assert child.display is (child.id == "w3")
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assert pilot.app.query_one(
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ContentSwitcher
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).visible_content is pilot.app.query_one("#w3")
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pilot.app.query_one(ContentSwitcher).current = "w2"
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assert pilot.app.query_one(ContentSwitcher).current == "w2"
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for child in pilot.app.query_one(ContentSwitcher).children:
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assert child.display is (child.id == "w2")
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assert pilot.app.query_one(
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ContentSwitcher
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).visible_content is pilot.app.query_one("#w2")
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async def test_initial_display_then_hide() -> None:
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"""Test starting a content switcher with a widget initially shown then hide all."""
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async with SwitcherApp("w3").run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current == "w3"
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for child in pilot.app.query_one(ContentSwitcher).children:
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assert child.display is (child.id == "w3")
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pilot.app.query_one(ContentSwitcher).current = None
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assert pilot.app.query_one(ContentSwitcher).current is None
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assert all(
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not child.display for child in pilot.app.query_one(ContentSwitcher).children
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)
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@pytest.mark.xfail(
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reason="The expected exception doesn't appear to make it to pytest -- perhaps related to https://github.com/Textualize/textual/issues/1972"
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)
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async def test_initial_display_unknown_id() -> None:
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"""Test setting an initial display to an unknown widget ID."""
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with pytest.raises(NoMatches):
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async with SwitcherApp("does-not-exist").run_test():
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pass
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async def test_set_current_to_unknown_id() -> None:
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"""Test attempting to switch to an unknown widget ID."""
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async with SwitcherApp().run_test() as pilot:
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assert pilot.app.query_one(ContentSwitcher).current is None
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assert all(
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not child.display for child in pilot.app.query_one(ContentSwitcher).children
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)
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with pytest.raises(NoMatches):
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pilot.app.query_one(ContentSwitcher).current = "does-not-exist"
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