tptimer/env/lib/python2.7/site-packages/pylint/test/functional/unneeded_not.py

64 lines
1.6 KiB
Python

"""Check exceeding negations in boolean expressions trigger warnings"""
# pylint: disable=singleton-comparison,too-many-branches,too-few-public-methods,undefined-variable
# pylint: disable=literal-comparison
def unneeded_not():
"""This is not ok
"""
bool_var = True
someint = 2
if not not bool_var: # [unneeded-not]
pass
if not someint == 1: # [unneeded-not]
pass
if not someint != 1: # [unneeded-not]
pass
if not someint < 1: # [unneeded-not]
pass
if not someint > 1: # [unneeded-not]
pass
if not someint <= 1: # [unneeded-not]
pass
if not someint >= 1: # [unneeded-not]
pass
if not not someint: # [unneeded-not]
pass
if not bool_var == True: # [unneeded-not]
pass
if not bool_var == False: # [unneeded-not]
pass
if not bool_var != True: # [unneeded-not]
pass
if not True == True: # [unneeded-not]
pass
if not 2 in [3, 4]: # [unneeded-not]
pass
if not someint is 'test': # [unneeded-not]
pass
def tolerated_statements():
"""This is ok"""
bool_var = True
someint = 2
if not(bool_var == False and someint == 1):
pass
if 2 not in [3, 4]:
pass
if not someint == bool_var == 2:
pass
if not 2 <= someint < 3 < 4:
pass
if not set('bar') <= set('foobaz'):
pass
if not set(something) <= 3:
pass
if not frozenset(something) <= 3:
pass
class Klass(object):
"""This is also ok"""
def __ne__(self, other):
return not self == other