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"""Check invalid value returned by __hash__ """
# pylint: disable=too-few-public-methods,missing-docstring,no-self-use,import-error, useless-object-inheritance
import six
from missing import Missing
class FirstGoodHash(object):
"""__hash__ returns <type 'int'>"""
def __hash__(self):
return 1
class SecondGoodHash(object):
"""__hash__ returns <type 'int'>"""
def __hash__(self):
return 0
class HashMetaclass(type):
def __hash__(cls):
return 1
@six.add_metaclass(HashMetaclass)
class ThirdGoodHash(object):
"""Hash through the metaclass."""
class FirstBadHash(object):
""" __hash__ returns a dict """
def __hash__(self): # [invalid-hash-returned]
return {}
class SecondBadHash(object):
""" __hash__ returns str """
def __hash__(self): # [invalid-hash-returned]
return "True"
class ThirdBadHash(object):
""" __hash__ returns a float"""
def __hash__(self): # [invalid-hash-returned]
return 1.11
class FourthBadHash(object):
""" __hash__ returns node which does not have 'value' in AST """
def __hash__(self): # [invalid-hash-returned]
return lambda: 3
class AmbigousHash(object):
""" Uninferable return value """
__hash__ = lambda self: Missing
class AnotherAmbiguousHash(object):
"""Potential uninferable return value"""
def __hash__(self):
return hash(Missing)
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