mirror of
https://github.com/Textualize/textual.git
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74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
"""Core selection list unit tests, aimed at testing basic list creation.
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Note that the vast majority of the API *isn't* tested in here as
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`SelectionList` inherits from `OptionList` and so that would be duplicated
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effort. Instead these tests aim to just test the things that have been
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changed or wrapped in some way.
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"""
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from __future__ import annotations
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import pytest
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from rich.text import Text
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from textual.app import App, ComposeResult
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from textual.widgets import SelectionList
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from textual.widgets.option_list import Option
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from textual.widgets.selection_list import Selection, SelectionError
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class SelectionListApp(App[None]):
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"""Test selection list application."""
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def compose(self) -> ComposeResult:
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yield SelectionList[int](
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("0", 0),
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("1", 1, False),
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("2", 2, True),
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)
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async def test_all_parameters_become_selctions() -> None:
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"""All input parameters to a list should become selections."""
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async with SelectionListApp().run_test() as pilot:
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selections = pilot.app.query_one(SelectionList)
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assert selections.option_count == 3
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for n in range(3):
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assert isinstance(selections.get_option_at_index(n), Selection)
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async def test_get_selection_by_index() -> None:
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"""It should be possible to get a selection by index."""
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async with SelectionListApp().run_test() as pilot:
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option_list = pilot.app.query_one(SelectionList)
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for n in range(3):
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assert option_list.get_option_at_index(n).prompt == Text(str(n))
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assert option_list.get_option_at_index(-1).prompt == Text("2")
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async def test_add_later() -> None:
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"""It should be possible to add more items to a selection list."""
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async with SelectionListApp().run_test() as pilot:
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selections = pilot.app.query_one(SelectionList)
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assert selections.option_count == 3
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selections.add_option(("3", 3))
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assert selections.option_count == 4
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selections.add_option(Selection("4", 4))
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assert selections.option_count == 5
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selections.add_options([Selection("5", 5), ("6", 6), ("7", 7, True)])
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assert selections.option_count == 8
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selections.add_options([])
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assert selections.option_count == 8
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async def test_add_non_selections() -> None:
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"""Adding options that aren't selections should result in errors."""
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async with SelectionListApp().run_test() as pilot:
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selections = pilot.app.query_one(SelectionList)
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with pytest.raises(SelectionError):
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selections.add_option(None)
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with pytest.raises(SelectionError):
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selections.add_option(Option("Nope"))
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with pytest.raises(SelectionError):
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selections.add_option("Nope")
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