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111 lines
3.5 KiB
Python
111 lines
3.5 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.widgets import Tree
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from textual.widgets.tree import TreeNode
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class VerseBody:
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pass
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class VerseStar(VerseBody):
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pass
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class VersePlanet(VerseBody):
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pass
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class VerseMoon(VerseBody):
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pass
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class VerseTree(Tree[VerseBody]):
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pass
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class TreeClearApp(App[None]):
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"""Tree clearing test app."""
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def compose(self) -> ComposeResult:
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yield VerseTree("White Sun", data=VerseStar())
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def on_mount(self) -> None:
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tree = self.query_one(VerseTree)
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node = tree.root.add("Londinium", VersePlanet())
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node.add_leaf("Balkerne", VerseMoon())
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node.add_leaf("Colchester", VerseMoon())
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node = tree.root.add("Sihnon", VersePlanet())
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node.add_leaf("Airen", VerseMoon())
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node.add_leaf("Xiaojie", VerseMoon())
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async def test_tree_simple_clear() -> None:
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"""Clearing a tree should keep the old root label and data."""
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) > 1
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pilot.app.query_one(VerseTree).clear()
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assert len(tree.root.children) == 0
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assert str(tree.root.label) == "White Sun"
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assert isinstance(tree.root.data, VerseStar)
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async def test_tree_reset_with_label() -> None:
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"""Resetting a tree with a new label should use the new label and set the data to None."""
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) > 1
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pilot.app.query_one(VerseTree).reset(label="Jiangyin")
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assert len(tree.root.children) == 0
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assert str(tree.root.label) == "Jiangyin"
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assert tree.root.data is None
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async def test_tree_reset_with_label_and_data() -> None:
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"""Resetting a tree with a label and data have that label and data used."""
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) > 1
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pilot.app.query_one(VerseTree).reset(label="Jiangyin", data=VersePlanet())
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assert len(tree.root.children) == 0
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assert str(tree.root.label) == "Jiangyin"
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assert isinstance(tree.root.data, VersePlanet)
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async def test_remove_node():
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) == 2
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tree.root.children[0].remove()
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assert len(tree.root.children) == 1
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async def test_remove_node_children():
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) == 2
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assert len(tree.root.children[0].children) == 2
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tree.root.children[0].remove_children()
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assert len(tree.root.children) == 2
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assert len(tree.root.children[0].children) == 0
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async def test_tree_remove_children_of_root():
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"""Test removing the children of the root."""
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async with TreeClearApp().run_test() as pilot:
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tree = pilot.app.query_one(VerseTree)
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assert len(tree.root.children) > 1
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tree.root.remove_children()
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assert len(tree.root.children) == 0
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async def test_attempt_to_remove_root():
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"""Attempting to remove the root should be an error."""
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async with TreeClearApp().run_test() as pilot:
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with pytest.raises(TreeNode.RemoveRootError):
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pilot.app.query_one(VerseTree).root.remove()
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