def test_copy(self):
d = securedict({1:1, 2:2, 3:3})
self.assertEqual(d.copy(), {1:1, 2:2, 3:3})
self.assertIsInstance(d.copy(), securedict)
self.assertEqual(securedict().copy(), {})
self.assertIsInstance(securedict().copy(), securedict)
self.assertRaises(TypeError, d.copy, None)
def test_copy(self):
d = securedict({1: 1, 2: 2, 3: 3})
self.assertEqual(d.copy(), {1: 1, 2: 2, 3: 3})
self.assertIsInstance(d.copy(), securedict)
self.assertEqual(securedict().copy(), {})
self.assertIsInstance(securedict().copy(), securedict)
self.assertRaises(TypeError, d.copy, None)
def test_clear(self):
d = securedict({1:1, 2:2, 3:3})
d.clear()
self.assertEqual(d, {})
self.assertEqual(d, securedict())
self.assertRaises(TypeError, d.clear, None)
def test_updateWithSecureDict(self):
"""
Updating a securedict with another securedict works.
"""
d = securedict()
d.update(securedict({1: 100}))
self.assertEqual(d, {1: 100})
def test_popitem(self): # dict.popitem() for copymode in -1, +1: # -1: b has same structure as a # +1: b is a.copy() for log2size in range(12): size = 2**log2size a = securedict() b = securedict() for i in range(size): a[repr(i)] = i if copymode < 0: b[repr(i)] = i if copymode > 0: b = a.copy() for i in range(size): ka, va = ta = a.popitem() self.assertEqual(va, int(ka)) kb, vb = tb = b.popitem() self.assertEqual(vb, int(kb)) self.assertFalse(copymode < 0 and ta != tb) self.assertFalse(a) self.assertFalse(b) d = securedict() self.assertRaises(KeyError, d.popitem)
def test_clear(self):
d = securedict({1: 1, 2: 2, 3: 3})
d.clear()
self.assertEqual(d, {})
self.assertEqual(d, securedict())
self.assertRaises(TypeError, d.clear, None)
def test_values(self):
d = securedict()
self.assertEqual(d.values(), [])
d = securedict({1:2})
self.assertEqual(d.values(), [2])
self.assertRaises(TypeError, d.values, None)
def test_values(self):
d = securedict()
self.assertEqual(d.values(), [])
d = securedict({1: 2})
self.assertEqual(d.values(), [2])
self.assertRaises(TypeError, d.values, None)
def test_popitem(self):
# dict.popitem()
for copymode in -1, +1:
# -1: b has same structure as a
# +1: b is a.copy()
for log2size in range(12):
size = 2**log2size
a = securedict()
b = securedict()
for i in range(size):
a[repr(i)] = i
if copymode < 0:
b[repr(i)] = i
if copymode > 0:
b = a.copy()
for i in range(size):
ka, va = ta = a.popitem()
self.assertEqual(va, int(ka))
kb, vb = tb = b.popitem()
self.assertEqual(vb, int(kb))
self.assertFalse(copymode < 0 and ta != tb)
self.assertFalse(a)
self.assertFalse(b)
d = securedict()
self.assertRaises(KeyError, d.popitem)
def test_updateWithSecureDict(self):
"""
Updating a securedict with another securedict works.
"""
d = securedict()
d.update(securedict({1:100}))
self.assertEqual(d, {1:100})
def test_reprOtherRecursions(self):
d = securedict({1: []})
d[1].append(d)
self.assertEqual(repr(d), 'securedict({1: [securedict({...})]})')
d = [securedict({1: None})]
d[0][1] = d
self.assertEqual(repr(d), '[securedict({1: [...]})]')
def test_reprOtherRecursions(self):
d = securedict({1: []})
d[1].append(d)
self.assertEqual(repr(d), 'securedict({1: [securedict({...})]})')
d = [securedict({1: None})]
d[0][1] = d
self.assertEqual(repr(d), '[securedict({1: [...]})]')
def test_iteritems(self):
d = securedict()
self.assertEqual(list(d.iteritems()), [])
d = securedict({1:2})
self.assertEqual(list(d.iteritems()), [(1, 2)])
self.assertRaises(TypeError, d.iteritems, None)
def test_iteritems(self):
d = securedict()
self.assertEqual(list(d.iteritems()), [])
d = securedict({1: 2})
self.assertEqual(list(d.iteritems()), [(1, 2)])
self.assertRaises(TypeError, d.iteritems, None)
def test_has_key(self):
d = securedict()
self.assertFalse(d.has_key('a'))
d = securedict({'a': 1, 'b': 2})
k = d.keys()
k.sort()
self.assertEqual(k, ['a', 'b'])
self.assertRaises(TypeError, d.has_key)
def test_keys(self):
d = securedict()
self.assertEqual(d.keys(), [])
d = securedict({'a': 1, 'b': 2})
k = d.keys()
self.assertTrue(d.has_key('a'))
self.assertTrue(d.has_key('b'))
self.assertRaises(TypeError, d.keys, None)
def test_has_key(self):
d = securedict()
self.assertFalse(d.has_key('a'))
d = securedict({'a': 1, 'b': 2})
k = d.keys()
k.sort()
self.assertEqual(k, ['a', 'b'])
self.assertRaises(TypeError, d.has_key)
def test_keys(self):
d = securedict()
self.assertEqual(d.keys(), [])
d = securedict({'a': 1, 'b': 2})
k = d.keys()
self.assertTrue(d.has_key('a'))
self.assertTrue(d.has_key('b'))
self.assertRaises(TypeError, d.keys, None)
def test_get(self):
d = securedict()
self.assertIdentical(d.get('c'), None)
self.assertEqual(d.get('c', 3), 3)
d = securedict({'a': 1, 'b': 2})
self.assertIdentical(d.get('c'), None)
self.assertEqual(d.get('c', 3), 3)
self.assertEqual(d.get('a'), 1)
self.assertEqual(d.get('a', 3), 1)
self.assertRaises(TypeError, d.get)
self.assertRaises(TypeError, d.get, None, None, None)
def test_contains(self):
d = securedict()
self.assertNotIn('a', d)
self.assertFalse('a' in d)
self.assertTrue('a' not in d)
d = securedict({'a': 1, 'b': 2})
self.assertIn('a', d)
self.assertIn('b', d)
self.assertNotIn('c', d)
self.assertRaises(TypeError, d.__contains__)
def test_get(self):
d = securedict()
self.assertIdentical(d.get('c'), None)
self.assertEqual(d.get('c', 3), 3)
d = securedict({'a': 1, 'b': 2})
self.assertIdentical(d.get('c'), None)
self.assertEqual(d.get('c', 3), 3)
self.assertEqual(d.get('a'), 1)
self.assertEqual(d.get('a', 3), 1)
self.assertRaises(TypeError, d.get)
self.assertRaises(TypeError, d.get, None, None, None)
def test_contains(self):
d = securedict()
self.assertNotIn('a', d)
self.assertFalse('a' in d)
self.assertTrue('a' not in d)
d = securedict({'a': 1, 'b': 2})
self.assertIn('a', d)
self.assertIn('b', d)
self.assertNotIn('c', d)
self.assertRaises(TypeError, d.__contains__)
def test_getitem(self):
d = securedict({'a': 1, 'b': 2})
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
d['c'] = 3
d['a'] = 4
self.assertEqual(d['c'], 3)
self.assertEqual(d['a'], 4)
del d['b']
self.assertEqual(d, {'a': 4, 'c': 3})
self.assertEqual(d, securedict({'a': 4, 'c': 3}))
self.assertRaises(TypeError, d.__getitem__)
def test_getitem(self):
d = securedict({'a': 1, 'b': 2})
self.assertEqual(d['a'], 1)
self.assertEqual(d['b'], 2)
d['c'] = 3
d['a'] = 4
self.assertEqual(d['c'], 3)
self.assertEqual(d['a'], 4)
del d['b']
self.assertEqual(d, {'a': 4, 'c': 3})
self.assertEqual(d, securedict({'a': 4, 'c': 3}))
self.assertRaises(TypeError, d.__getitem__)
def test_fromkeys(self):
self.assertEqual(securedict.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
d = securedict()
self.assertNotIdentical(d.fromkeys('abc'), d)
self.assertEqual(d.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
self.assertEqual(d.fromkeys((4,5),0), {4:0, 5:0})
self.assertEqual(d.fromkeys([]), {})
def g():
yield 1
self.assertEqual(d.fromkeys(g()), {1:None})
self.assertRaises(TypeError, securedict().fromkeys, 3)
class dictlike(securedict): pass
self.assertEqual(dictlike.fromkeys('a'), {'a':None})
self.assertEqual(dictlike().fromkeys('a'), {'a':None})
self.assertIsInstance(dictlike.fromkeys('a'), dictlike)
self.assertIsInstance(dictlike().fromkeys('a'), dictlike)
class mydict(securedict):
def __new__(cls):
return UserDict.UserDict()
ud = mydict.fromkeys('ab')
self.assertEqual(ud, {'a':None, 'b':None})
self.assertIsInstance(ud, UserDict.UserDict)
self.assertRaises(TypeError, dict.fromkeys)
class Exc(Exception): pass
class baddict1(securedict):
def __init__(self):
raise Exc()
self.assertRaises(Exc, baddict1.fromkeys, [1])
class BadSeq(object):
def __iter__(self):
return self
def next(self):
raise Exc()
self.assertRaises(Exc, securedict.fromkeys, BadSeq())
class baddict2(securedict):
def __setitem__(self, key, value):
raise Exc()
self.assertRaises(Exc, baddict2.fromkeys, [1])
# test fast path for dictionary inputs
d = securedict(zip(range(6), range(6)))
self.assertEqual(securedict.fromkeys(d, 0), securedict(zip(range(6), [0]*6)))
def test_delitem(self):
d = securedict({'a': 1, 'b': 2})
del d['a']
def delc():
del d['c']
e = self.assertRaises(KeyError, delc)
self.assertEqual(e.args, ('c',))
def test_getitem_bad_eq_hash(self):
class BadEq(object):
def __eq__(self, other):
raise Exc()
def __hash__(self):
return 24
d = securedict()
d[BadEq()] = 42
self.assertRaises(KeyError, d.__getitem__, 23)
class Exc(Exception):
pass
class BadHash(object):
fail = False
def __hash__(self):
if self.fail:
raise Exc()
else:
return 42
x = BadHash()
d[x] = 42
x.fail = True
self.assertRaises(Exc, d.__getitem__, x)
def test_bad_key(self):
# Dictionary lookups should fail if __cmp__() raises an exception.
class CustomException(Exception):
pass
class BadDictKey:
def __hash__(self):
return hash(self.__class__)
def __cmp__(self, other):
if isinstance(other, self.__class__):
raise CustomException
return other
d = securedict()
x1 = BadDictKey()
x2 = BadDictKey()
d[x1] = 1
def execstmt(stmt, loc):
exec stmt in loc
for stmt in ['d[x2] = 2',
'z = d[x2]',
'x2 in d',
'd.has_key(x2)',
'd.get(x2)',
'd.setdefault(x2, 42)',
'd.pop(x2)',
'd.update({x2: 2})']:
self.assertRaises(CustomException, execstmt, stmt, locals())
def test_bad_key(self):
# Dictionary lookups should fail if __cmp__() raises an exception.
class CustomException(Exception):
pass
class BadDictKey:
def __hash__(self):
return hash(self.__class__)
def __cmp__(self, other):
if isinstance(other, self.__class__):
raise CustomException
return other
d = securedict()
x1 = BadDictKey()
x2 = BadDictKey()
d[x1] = 1
def execstmt(stmt, loc):
exec stmt in loc
for stmt in [
'd[x2] = 2', 'z = d[x2]', 'x2 in d', 'd.has_key(x2)',
'd.get(x2)', 'd.setdefault(x2, 42)', 'd.pop(x2)',
'd.update({x2: 2})'
]:
self.assertRaises(CustomException, execstmt, stmt, locals())
def test_getitem_bad_eq_hash(self): class BadEq(object): def __eq__(self, other): raise Exc() def __hash__(self): return 24 d = securedict() d[BadEq()] = 42 self.assertRaises(KeyError, d.__getitem__, 23) class Exc(Exception): pass class BadHash(object): fail = False def __hash__(self): if self.fail: raise Exc() else: return 42 x = BadHash() d[x] = 42 x.fail = True self.assertRaises(Exc, d.__getitem__, x)
def test_repr(self):
d = securedict()
self.assertEqual(repr(d), 'securedict({})')
d[1] = 2
self.assertEqual(repr(d), 'securedict({1: 2})')
d = securedict()
d[1] = d
self.assertEqual(repr(d), 'securedict({1: securedict({...})})')
class Exc(Exception): pass
class BadRepr(object):
def __repr__(self):
raise Exc()
d = securedict({1: BadRepr()})
self.assertRaises(Exc, repr, d)
def test_initDoesUpdate(self):
"""
You can use securedict.__init__ to update a securedict, just like
you can use dict.__init__ to update a dict.
"""
d = securedict()
d.__init__({1: 2})
self.assertEqual(d, {1: 2})
def test_initDoesUpdate(self):
"""
You can use securedict.__init__ to update a securedict, just like
you can use dict.__init__ to update a dict.
"""
d = securedict()
d.__init__({1: 2})
self.assertEqual(d, {1: 2})
def test_tuple_keyerror(self): def get(obj, key): obj[key] # SF #1576657 d = securedict() ex = self.assertRaises(KeyError, get, d, (1,)) self.assertEqual(ex.args, ((1,),))
def test_mutatingiteration(self): # changing dict size during iteration d = securedict() d[1] = 1 def mutate(): for i in d: d[i+1] = 1 self.assertRaises(RuntimeError, mutate)
def test_tuple_keyerror(self):
def get(obj, key):
obj[key]
# SF #1576657
d = securedict()
ex = self.assertRaises(KeyError, get, d, (1, ))
self.assertEqual(ex.args, ((1, ), ))
def test_constructor(self):
# calling built-in types without argument must return empty
self.assertEqual(securedict(), {})
self.assertEqual(securedict(), securedict())
self.assertNotIdentical(securedict(), {})
self.assertEqual(securedict(one=1, two=2), {'one': 1, 'two': 2})
# Test for some regressions caused by having a variable name in
# the arglist of __new__ and update.
self.assertEqual(securedict(x=1, y=2, z=3, k=4, v=5), {
'x': 1,
'y': 2,
'z': 3,
'k': 4,
'v': 5
})
self.assertEqual(securedict({}, x=1, y=2, z=3, k=4, v=5), {
'x': 1,
'y': 2,
'z': 3,
'k': 4,
'v': 5
})
def test_repr(self):
d = securedict()
self.assertEqual(repr(d), 'securedict({})')
d[1] = 2
self.assertEqual(repr(d), 'securedict({1: 2})')
d = securedict()
d[1] = d
self.assertEqual(repr(d), 'securedict({1: securedict({...})})')
class Exc(Exception):
pass
class BadRepr(object):
def __repr__(self):
raise Exc()
d = securedict({1: BadRepr()})
self.assertRaises(Exc, repr, d)
def test_delitem(self):
d = securedict({'a': 1, 'b': 2})
del d['a']
def delc():
del d['c']
e = self.assertRaises(KeyError, delc)
self.assertEqual(e.args, ('c', ))
def test_mutatingiteration(self):
# changing dict size during iteration
d = securedict()
d[1] = 1
def mutate():
for i in d:
d[i + 1] = 1
self.assertRaises(RuntimeError, mutate)
def test_setdefault(self):
# dict.setdefault()
d = securedict()
self.assertIdentical(d.setdefault('key0'), None)
d.setdefault('key0', [])
self.assertIdentical(d.setdefault('key0'), None)
d.setdefault('key', []).append(3)
self.assertEqual(d['key'][0], 3)
d.setdefault('key', []).append(4)
self.assertEqual(len(d['key']), 2)
self.assertRaises(TypeError, d.setdefault)
def test_setdefault(self):
# dict.setdefault()
d = securedict()
self.assertIdentical(d.setdefault('key0'), None)
d.setdefault('key0', [])
self.assertIdentical(d.setdefault('key0'), None)
d.setdefault('key', []).append(3)
self.assertEqual(d['key'][0], 3)
d.setdefault('key', []).append(4)
self.assertEqual(len(d['key']), 2)
self.assertRaises(TypeError, d.setdefault)
def test_lt_gt(self):
"""
< and > on a securedict compares the securedict's id(...).
"""
one = securedict({1: 2})
two = securedict({3: 4})
compares = [(one, two), (two, one)]
for a, b in compares:
assert id(a) != id(b)
if id(a) < id(b):
a, b = b, a
self.assertTrue(a > b)
self.assertTrue(a >= b)
self.assertTrue(b < a)
self.assertTrue(b <= a)
self.assertFalse(a < b)
self.assertFalse(a <= b)
self.assertFalse(b > a)
self.assertFalse(b >= a)
self.assertEqual(1, cmp(a, b))
self.assertEqual(-1, cmp(b, a))
def test_lt_gt(self):
"""
< and > on a securedict compares the securedict's id(...).
"""
one = securedict({1: 2})
two = securedict({3: 4})
compares = [(one, two), (two, one)]
for a, b in compares:
assert id(a) != id(b)
if id(a) < id(b):
a, b = b, a
self.assertTrue(a > b)
self.assertTrue(a >= b)
self.assertTrue(b < a)
self.assertTrue(b <= a)
self.assertFalse(a < b)
self.assertFalse(a <= b)
self.assertFalse(b > a)
self.assertFalse(b >= a)
self.assertEqual(1, cmp(a, b))
self.assertEqual(-1, cmp(b, a))
def test_viewmethods(self):
if hasattr({}, 'viewitems'): # Python 2.7+
self.assertRaises(NotImplementedError, lambda: securedict().viewitems())
self.assertRaises(NotImplementedError, lambda: securedict().viewkeys())
self.assertEqual(list(securedict({1: 2}).viewvalues()), list({1: 2}.viewvalues()))
else:
self.assertRaises((AttributeError, TypeError), lambda: securedict().viewitems())
self.assertRaises((AttributeError, TypeError), lambda: securedict().viewkeys())
self.assertRaises((AttributeError, TypeError), lambda: securedict().viewvalues())
def test_pop(self):
# Tests for pop with specified key
d = securedict()
k, v = 'abc', 'def'
d[k] = v
self.assertRaises(KeyError, d.pop, 'ghi')
self.assertEqual(d.pop(k), v)
self.assertEqual(len(d), 0)
self.assertRaises(KeyError, d.pop, k)
# verify longs/ints get same value when key > 32 bits
# (for 64-bit archs). See SF bug #689659.
x = 4503599627370496L
y = 4503599627370496
h = securedict({x: 'anything', y: 'something else'})
self.assertEqual(h[x], h[y])
self.assertEqual(d.pop(k, v), v)
d[k] = v
self.assertEqual(d.pop(k, 1), v)
self.assertRaises(TypeError, d.pop)
def test_pop(self):
# Tests for pop with specified key
d = securedict()
k, v = 'abc', 'def'
d[k] = v
self.assertRaises(KeyError, d.pop, 'ghi')
self.assertEqual(d.pop(k), v)
self.assertEqual(len(d), 0)
self.assertRaises(KeyError, d.pop, k)
# verify longs/ints get same value when key > 32 bits
# (for 64-bit archs). See SF bug #689659.
x = 4503599627370496L
y = 4503599627370496
h = securedict({x: 'anything', y: 'something else'})
self.assertEqual(h[x], h[y])
self.assertEqual(d.pop(k, v), v)
d[k] = v
self.assertEqual(d.pop(k, 1), v)
self.assertRaises(TypeError, d.pop)
def test_updateAlgorithmNotBroken(self): """ securedict.update (and __init__) use pypy's dict update algorithm instead of the broken CPython algorithm. """ class DictSubclass(dict): def keys(self): return ['a'] def __iter__(self): return ['b'] special = DictSubclass(a=1, b=2, c=3) d = securedict() d.update(special) self.assertEqual(d, dict(a=1))
def test_updateAlgorithmNotBroken(self):
"""
securedict.update (and __init__) use pypy's dict update algorithm
instead of the broken CPython algorithm.
"""
class DictSubclass(dict):
def keys(self):
return ['a']
def __iter__(self):
return ['b']
special = DictSubclass(a=1, b=2, c=3)
d = securedict()
d.update(special)
self.assertEqual(d, dict(a=1))
def test_missing(self):
# Make sure securedict doesn't have a __missing__ method
self.assertFalse(hasattr(securedict, "__missing__"))
self.assertFalse(hasattr(securedict(), "__missing__"))
# Test several cases:
# (D) subclass defines __missing__ method returning a value
# (E) subclass defines __missing__ method raising RuntimeError
# (F) subclass sets __missing__ instance variable (no effect)
# (G) subclass doesn't define __missing__ at a all
class D(securedict):
def __missing__(self, key):
return 42
d = D({1: 2, 3: 4})
self.assertEqual(d[1], 2)
self.assertEqual(d[3], 4)
self.assertNotIn(2, d)
self.assertNotIn(2, d.keys())
self.assertEqual(d[2], 42)
class E(securedict):
def __missing__(self, key):
raise RuntimeError(key)
def get(obj, key):
obj[key]
e = E()
ex = self.assertRaises(RuntimeError, get, e, 42)
self.assertEqual(ex.args, (42, ))
class F(securedict):
def __init__(self):
# An instance variable __missing__ should have no effect
self.__missing__ = lambda key: None
f = F()
ex = self.assertRaises(KeyError, get, f, 42)
self.assertEqual(ex.args, (42, ))
class G(securedict):
pass
g = G()
ex = self.assertRaises(KeyError, get, g, 42)
self.assertEqual(ex.args, (42, ))
def test_pop_bad_hash(self): d = securedict() class Exc(Exception): pass class BadHash(object): fail = False def __hash__(self): if self.fail: raise Exc() else: return 42 x = BadHash() d[x] = 42 x.fail = True self.assertRaises(Exc, d.pop, x)
def test_protectsAgainstCollisions(self):
log.msg("If this test hangs, securedict is broken")
hashWrapsAt = (sys.maxint + 1) * 2
if hashWrapsAt not in (2**32, 2**64):
log.msg("Warning: hashWrapsAt is an unusual %r" % (hashWrapsAt,))
d = securedict()
for n in xrange(100000):
collider = 1 + n * (hashWrapsAt - 1)
# In Python < 2.6, big longs sometimes hash to 0 instead
# of 1 in this case. This doesn't affect the test, because we
# still gets tons of colliding keys.
self.assertTrue(hash(collider) in (0, 1),
"hash(%r) == %r" % (collider, hash(collider),))
d[collider] = True
def test_constructor(self):
# calling built-in types without argument must return empty
self.assertEqual(securedict(), {})
self.assertEqual(securedict(), securedict())
self.assertNotIdentical(securedict(), {})
self.assertEqual(securedict(one=1, two=2), {'one': 1, 'two': 2})
# Test for some regressions caused by having a variable name in
# the arglist of __new__ and update.
self.assertEqual(
securedict(x=1, y=2, z=3, k=4, v=5),
{'x': 1, 'y': 2, 'z': 3, 'k': 4, 'v': 5})
self.assertEqual(
securedict({}, x=1, y=2, z=3, k=4, v=5),
{'x': 1, 'y': 2, 'z': 3, 'k': 4, 'v': 5})
def test_missing(self):
# Make sure securedict doesn't have a __missing__ method
self.assertFalse(hasattr(securedict, "__missing__"))
self.assertFalse(hasattr(securedict(), "__missing__"))
# Test several cases:
# (D) subclass defines __missing__ method returning a value
# (E) subclass defines __missing__ method raising RuntimeError
# (F) subclass sets __missing__ instance variable (no effect)
# (G) subclass doesn't define __missing__ at a all
class D(securedict):
def __missing__(self, key):
return 42
d = D({1: 2, 3: 4})
self.assertEqual(d[1], 2)
self.assertEqual(d[3], 4)
self.assertNotIn(2, d)
self.assertNotIn(2, d.keys())
self.assertEqual(d[2], 42)
class E(securedict):
def __missing__(self, key):
raise RuntimeError(key)
def get(obj, key):
obj[key]
e = E()
ex = self.assertRaises(RuntimeError, get, e, 42)
self.assertEqual(ex.args, (42,))
class F(securedict):
def __init__(self):
# An instance variable __missing__ should have no effect
self.__missing__ = lambda key: None
f = F()
ex = self.assertRaises(KeyError, get, f, 42)
self.assertEqual(ex.args, (42,))
class G(securedict):
pass
g = G()
ex = self.assertRaises(KeyError, get, g, 42)
self.assertEqual(ex.args, (42,))
def test_pop_bad_hash(self):
d = securedict()
class Exc(Exception):
pass
class BadHash(object):
fail = False
def __hash__(self):
if self.fail:
raise Exc()
else:
return 42
x = BadHash()
d[x] = 42
x.fail = True
self.assertRaises(Exc, d.pop, x)
def test_protectsAgainstCollisions(self):
log.msg("If this test hangs, securedict is broken")
hashWrapsAt = (sys.maxint + 1) * 2
if hashWrapsAt not in (2**32, 2**64):
log.msg("Warning: hashWrapsAt is an unusual %r" % (hashWrapsAt, ))
d = securedict()
for n in xrange(100000):
collider = 1 + n * (hashWrapsAt - 1)
# In Python < 2.6, big longs sometimes hash to 0 instead
# of 1 in this case. This doesn't affect the test, because we
# still gets tons of colliding keys.
self.assertTrue(
hash(collider) in (0, 1), "hash(%r) == %r" % (
collider,
hash(collider),
))
d[collider] = True
def test_viewmethods(self):
if hasattr({}, 'viewitems'): # Python 2.7+
self.assertRaises(NotImplementedError,
lambda: securedict().viewitems())
self.assertRaises(NotImplementedError,
lambda: securedict().viewkeys())
self.assertEqual(list(securedict({
1: 2
}).viewvalues()), list({1: 2}.viewvalues()))
else:
self.assertRaises((AttributeError, TypeError),
lambda: securedict().viewitems())
self.assertRaises((AttributeError, TypeError),
lambda: securedict().viewkeys())
self.assertRaises((AttributeError, TypeError),
lambda: securedict().viewvalues())
def test_str(self):
"""
str()ing a securedict should return the same thing repr() does
"""
d = securedict({1: 2})
self.assertEqual(str(d), 'securedict({1: 2})')
def test_repr_like_dict(self):
d = securedict()
d[1] = 2
self.assertEqual(d.repr_like_dict(), '{1: 2}')
def test_repr_like_dict(self):
d = securedict()
d[1] = 2
self.assertEqual(d.repr_like_dict(), '{1: 2}')