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After upgrading `pytest-asyncio` to the latest version, lots of tests started failing in CI only on Python 3.9: `RuntimeError: There is no current event loop in thread 'MainThread'` Apparently these tests may have only been passing previously due to issues in earlier versions of `pytest-asyncio`. Changing these tests to async seems to fix the failures on Python 3.9. Related issue: https://github.com/pytest-dev/pytest-asyncio/issues/1039
19 lines
626 B
Python
19 lines
626 B
Python
from typing import cast
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import pytest
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from textual.widgets import Tree
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from textual.widgets.tree import NodeID, UnknownNodeID
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async def test_get_tree_node_by_id() -> None:
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"""It should be possible to get a TreeNode by its ID."""
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tree = Tree[None]("Anakin")
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child = tree.root.add("Leia")
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grandchild = child.add("Ben")
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assert tree.get_node_by_id(tree.root.id).id == tree.root.id
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assert tree.get_node_by_id(child.id).id == child.id
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assert tree.get_node_by_id(grandchild.id).id == grandchild.id
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with pytest.raises(UnknownNodeID):
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tree.get_node_by_id(cast(NodeID, grandchild.id + 1000))
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