mirror of
https://github.com/Textualize/textual.git
synced 2025-10-17 02:38:12 +03:00
d350374e59
After some internal discussion we've decided to keep `Tree.clear` as it was, and add a `Tree.reset`, which does a `Tree.clear` but resets the label and data of `Tree.root` to the values given, while mirroring how `Tree.__init__` takes those parameters.
74 lines
2.2 KiB
Python
74 lines
2.2 KiB
Python
from __future__ import annotations
|
|
|
|
from textual.app import App, ComposeResult
|
|
from textual.widgets import Tree
|
|
|
|
|
|
class VerseBody:
|
|
pass
|
|
|
|
|
|
class VerseStar(VerseBody):
|
|
pass
|
|
|
|
|
|
class VersePlanet(VerseBody):
|
|
pass
|
|
|
|
|
|
class VerseMoon(VerseBody):
|
|
pass
|
|
|
|
|
|
class VerseTree(Tree[VerseBody]):
|
|
pass
|
|
|
|
|
|
class TreeClearApp(App[None]):
|
|
"""Tree clearing test app."""
|
|
|
|
def compose(self) -> ComposeResult:
|
|
yield VerseTree("White Sun", data=VerseStar())
|
|
|
|
def on_mount(self) -> None:
|
|
tree = self.query_one(VerseTree)
|
|
node = tree.root.add("Londinium", VersePlanet())
|
|
node.add_leaf("Balkerne", VerseMoon())
|
|
node.add_leaf("Colchester", VerseMoon())
|
|
node = tree.root.add("Sihnon", VersePlanet())
|
|
node.add_leaf("Airen", VerseMoon())
|
|
node.add_leaf("Xiaojie", VerseMoon())
|
|
|
|
|
|
async def test_tree_simple_clear() -> None:
|
|
"""Clearing a tree should keep the old root label and data."""
|
|
async with TreeClearApp().run_test() as pilot:
|
|
tree = pilot.app.query_one(VerseTree)
|
|
assert len(tree.root.children) > 1
|
|
pilot.app.query_one(VerseTree).clear()
|
|
assert len(tree.root.children) == 0
|
|
assert str(tree.root.label) == "White Sun"
|
|
assert isinstance(tree.root.data, VerseStar)
|
|
|
|
|
|
async def test_tree_reset_with_label() -> None:
|
|
"""Resetting a tree with a new label should use the new label and set the data to None."""
|
|
async with TreeClearApp().run_test() as pilot:
|
|
tree = pilot.app.query_one(VerseTree)
|
|
assert len(tree.root.children) > 1
|
|
pilot.app.query_one(VerseTree).reset(label="Jiangyin")
|
|
assert len(tree.root.children) == 0
|
|
assert str(tree.root.label) == "Jiangyin"
|
|
assert tree.root.data is None
|
|
|
|
|
|
async def test_tree_reset_with_label_and_data() -> None:
|
|
"""Resetting a tree with a label and data have that label and data used."""
|
|
async with TreeClearApp().run_test() as pilot:
|
|
tree = pilot.app.query_one(VerseTree)
|
|
assert len(tree.root.children) > 1
|
|
pilot.app.query_one(VerseTree).reset(label="Jiangyin", data=VersePlanet())
|
|
assert len(tree.root.children) == 0
|
|
assert str(tree.root.label) == "Jiangyin"
|
|
assert isinstance(tree.root.data, VersePlanet)
|