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import sys
import textwrap
import unittest
from pyflakes import checker
__all__ = ['TestCase', 'skip', 'skipIf']
if sys.version_info < (2, 7):
skip = lambda why: (lambda func: 'skip') # not callable
skipIf = lambda cond, why: (skip(why) if cond else lambda func: func)
else:
skip = unittest.skip
skipIf = unittest.skipIf
PyCF_ONLY_AST = 1024
class TestCase(unittest.TestCase):
withDoctest = False
def flakes(self, input, *expectedOutputs, **kw):
tree = compile(textwrap.dedent(input), "<test>", "exec", PyCF_ONLY_AST)
w = checker.Checker(tree, 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:
%s
expected outputs:
%r
but got:
%s''' % (input, expectedOutputs, '\n'.join([str(o) for o in w.messages])))
return w
if not hasattr(unittest.TestCase, 'assertIs'):
def assertIs(self, expr1, expr2, msg=None):
if expr1 is not expr2:
self.fail(msg or '%r is not %r' % (expr1, expr2))
if not hasattr(unittest.TestCase, 'assertIsInstance'):
def assertIsInstance(self, obj, cls, msg=None):
"""Same as self.assertTrue(isinstance(obj, cls))."""
if not isinstance(obj, cls):
self.fail(msg or '%r is not an instance of %r' % (obj, cls))
if not hasattr(unittest.TestCase, 'assertNotIsInstance'):
def assertNotIsInstance(self, obj, cls, msg=None):
"""Same as self.assertFalse(isinstance(obj, cls))."""
if isinstance(obj, cls):
self.fail(msg or '%r is an instance of %r' % (obj, cls))
if not hasattr(unittest.TestCase, 'assertIn'):
def assertIn(self, member, container, msg=None):
"""Just like self.assertTrue(a in b)."""
if member not in container:
self.fail(msg or '%r not found in %r' % (member, container))
if not hasattr(unittest.TestCase, 'assertNotIn'):
def assertNotIn(self, member, container, msg=None):
"""Just like self.assertTrue(a not in b)."""
if member in container:
self.fail(msg or
'%r unexpectedly found in %r' % (member, container))
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