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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
try:
import regex # type: ignore[import]
HAS_REGEX = True
except ImportError:
HAS_REGEX = False
import pytest
from astroid import MANAGER, builder, nodes, test_utils
@pytest.mark.skipif(not HAS_REGEX, reason="This test requires the regex library.")
class TestRegexBrain:
def test_regex_flags(self) -> None:
"""Test that we have all regex enum flags in the brain."""
names = [name for name in dir(regex) if name.isupper()]
re_ast = MANAGER.ast_from_module_name("regex")
for name in names:
assert name in re_ast
assert next(re_ast[name].infer()).value == getattr(regex, name)
@pytest.mark.xfail(
reason="Started failing on main, but no one reproduced locally yet"
)
@test_utils.require_version(minver="3.9")
def test_regex_pattern_and_match_subscriptable(self):
"""Test regex.Pattern and regex.Match are subscriptable in PY39+."""
node1 = builder.extract_node(
"""
import regex
regex.Pattern[str]
"""
)
inferred1 = next(node1.infer())
assert isinstance(inferred1, nodes.ClassDef)
assert isinstance(inferred1.getattr("__class_getitem__")[0], nodes.FunctionDef)
node2 = builder.extract_node(
"""
import regex
regex.Match[str]
"""
)
inferred2 = next(node2.infer())
assert isinstance(inferred2, nodes.ClassDef)
assert isinstance(inferred2.getattr("__class_getitem__")[0], nodes.FunctionDef)
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