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# Licensed under the LGPL: https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html
# For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
# Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
import astroid
from astroid import bases
from astroid.const import PY310_PLUS
from astroid.util import Uninferable
def test_inference_parents() -> None:
"""Test inference of ``pathlib.Path.parents``."""
name_node = astroid.extract_node(
"""
from pathlib import Path
current_path = Path().resolve()
path_parents = current_path.parents
path_parents
"""
)
inferred = name_node.inferred()
assert len(inferred) == 1
assert isinstance(inferred[0], bases.Instance)
assert inferred[0].qname() == "pathlib._PathParents"
def test_inference_parents_subscript_index() -> None:
"""Test inference of ``pathlib.Path.parents``, accessed by index."""
path = astroid.extract_node(
"""
from pathlib import Path
current_path = Path().resolve()
current_path.parents[2] #@
"""
)
inferred = path.inferred()
assert len(inferred) == 1
assert isinstance(inferred[0], bases.Instance)
assert inferred[0].qname() == "pathlib.Path"
def test_inference_parents_subscript_slice() -> None:
"""Test inference of ``pathlib.Path.parents``, accessed by slice."""
name_node = astroid.extract_node(
"""
from pathlib import Path
current_path = Path().resolve()
parent_path = current_path.parents[:2]
parent_path
"""
)
inferred = name_node.inferred()
assert len(inferred) == 1
if PY310_PLUS:
assert isinstance(inferred[0], bases.Instance)
assert inferred[0].qname() == "builtins.tuple"
else:
assert inferred[0] is Uninferable
def test_inference_parents_subscript_not_path() -> None:
"""Test inference of other ``.parents`` subscripts is unaffected."""
name_node = astroid.extract_node(
"""
class A:
parents = 42
c = A()
error = c.parents[:2]
error
"""
)
inferred = name_node.inferred()
assert len(inferred) == 1
assert inferred[0] is Uninferable
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