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import ast
import textwrap
import unittest
from pyflakes import checker
__all__ = ['TestCase', 'skip', 'skipIf']
skip = unittest.skip
skipIf = unittest.skipIf
class TestCase(unittest.TestCase):
withDoctest = False
def flakes(self, input, *expectedOutputs, **kw):
tree = ast.parse(textwrap.dedent(input))
file_tokens = checker.make_tokens(textwrap.dedent(input))
if kw.get('is_segment'):
tree = tree.body[0]
kw.pop('is_segment')
w = checker.Checker(
tree, file_tokens=file_tokens, withDoctest=self.withDoctest, **kw
)
outputs = [type(o) for o in w.messages]
expectedOutputs = list(expectedOutputs)
outputs.sort(key=lambda t: t.__name__)
expectedOutputs.sort(key=lambda t: t.__name__)
self.assertEqual(outputs, expectedOutputs, '''\
for input:
{}
expected outputs:
{!r}
but got:
{}'''.format(input, expectedOutputs, '\n'.join([str(o) for o in w.messages])))
return w
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