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"""Tests of pyflakes monkey patches."""
import ast
import pyflakes
from flake8.plugins import pyflakes as pyflakes_shim
def test_all_pyflakes_messages_have_flake8_codes_assigned():
"""Verify all PyFlakes messages have error codes assigned."""
messages = {
name
for name, obj in vars(pyflakes.messages).items()
if name[0].isupper() and obj.message
}
assert messages == set(pyflakes_shim.FLAKE8_PYFLAKES_CODES)
def test_undefined_local_code():
"""In pyflakes 2.1.0 this code's string formatting was changed."""
src = '''\
import sys
def f():
sys = sys
'''
tree = ast.parse(src)
checker = pyflakes_shim.FlakesChecker(tree, (), 't.py')
message_texts = [s for _, _, s, _ in checker.run()]
assert message_texts == [
"F823 local variable 'sys' defined in enclosing scope on line 1 referenced before assignment", # noqa: E501
"F841 local variable 'sys' is assigned to but never used",
]
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