def test_misc_non_mutating(self):
'''
Misc non-mutating dict behaviors.
- Superdict instances generally behave like normal dicts.
'''
sd = Superdict(a = 11, b = 22)
# __contains__
self.assertTrue('a' in sd)
self.assertFalse('z' in sd)
self.assertFalse('pop' in sd)
# __len__
aEq(len(sd), 2)
# keys, values, items
aEq(set(sd.keys()), set('ab'))
aEq(set(sd.values()), set([11,22]))
aEq(set(sd.items()), set([('a', 11), ('b', 22)]))
# copy
d = sd.copy()
self.assertIs(type(d), dict)
aEq(d, dict(sd))
# equality
aEq(sd, dict(a = 11, b = 22))
def test_clear(self):
'''
clear().
'''
# Create dict.
sd = Superdict(a=11, b=22)
sd.clear()
# Nothing remains.
with aRaz(AERR): sd.a
with aRaz(AERR): sd.b
with aRaz(KERR): sd['a']
with aRaz(KERR): sd['b']
def test_popitem(self):
'''
popitem().
'''
# Create dict.
pairs = [('a', 11), ('b', 22)]
sd = Superdict(pairs)
# Pop everything.
s = set(sd.popitem() for _ in range(len(sd)))
aEq(s, set(pairs))
# Nothing remains.
with aRaz(AERR): sd.a
with aRaz(AERR): sd.b
with aRaz(KERR): sd['a']
with aRaz(KERR): sd['b']
def test_unicode(self):
'''
Unicode
- Overridden attributes are treated like normal ones.
- But other protected attributes remain protected.
- And normal attributes behave normally.
'''
# Non-ascii keys and vals work fine.
u = u'\xf8'
sd = Superdict(a = 1, b = 2)
sd[u] = 12
sd.x = u
# Non-ascii keys work fine exception messages.
sd = StrictSuperdict('ab', a = 1, b = 2)
with aRaz(AERR):
sd[u] = 12
def test_protected_attribute_setting(self):
'''
Protected attribute setting.
- Protected attributes should stay protected.
- Protection should work for attr setting or key setting.
'''
sd = Superdict()
v = 1234
# Setting via attribute.
sd.update = v
aEq(sd['update'], v)
self.assertNotEqual(sd['update'], sd.update)
self.assertIsInstance(sd.update, types.MethodType)
# Setting via key.
sd['pop'] = v
aEq(sd['pop'], v)
self.assertNotEqual(sd['pop'], sd.pop)
self.assertIsInstance(sd.pop, types.MethodType)
def test_get(self):
'''
get().
- The normal get() behavior applies to all types of superdicts.
'''
# Regular.
sd = Superdict(a = 11, b = 22)
aEq(sd.get('a'), 11)
aEq(sd.get('z'), None)
aEq(sd.get('update'), None)
# Strict.
sd = StrictSuperdict('ab', a = 11, b = 22)
aEq(sd.get('a'), 11)
aEq(sd.get('z'), None)
aEq(sd.get('update'), None)
# Relaxed.
sd = RelaxedSuperdict('pop'.split(), a = 11, b = 22, pop = 333)
aEq(sd.get('a'), 11)
aEq(sd.get('z'), None)
aEq(sd.get('update'), None)
aEq(sd.get('pop'), 333)
def test_basic_attribute_access(self):
'''
Basic attribute access.
- Can set values via attr or key.
- Set values are store in both the attr and the key.
'''
sd = Superdict(a = 1, b = 2)
# Basics.
sd.b = 22
sd['c'] = 33
aEq(sd.a, 1)
aEq(sd.c, 33)
aEq(sd['a'], 1)
aEq(sd['c'], 33)
aEq(sd, dict(a = 1, b = 22, c = 33))
# Set attributes are stored both as attributes on the Superdict and as
# keys in the underlying dict.
ks = set('abc')
for k in ks:
self.assertIn(k, sd.__dict__)
dict_ks = super(Superdict, sd).keys()
aEq(set(dict_ks), ks)
def test_update(self):
'''
update().
- Since the constructor relies on update(), this behavior is well covered.
'''
sd = Superdict(a=11, b=22)
# Basic attributes.
sd.update(c = 33, d = 44)
aEq(sd.c, 33)
aEq(sd.d, 44)
aEq(sd['c'], 33)
# Protected attributes.
sd.update([('pop', 99), ('setdefault', 88)])
aEq(sd['pop'], 99)
self.assertIsInstance(sd.pop, types.MethodType)
# Wrong N args.
with aRaz(TERR): sd.update([1,2,3], [4,5])
def test_setdefault(self):
'''
setdefault().
'''
sd = Superdict(a=11, b=22)
# Basic attributes.
a = sd.setdefault('a', 999)
c = sd.setdefault('c', 888)
aEq(sd.a, 11)
aEq(a, 11)
aEq(sd.c, 888)
aEq(c, 888)
# Protected attributes.
p = sd.setdefault('pop', 999)
aEq(sd['pop'], 999)
aEq(p, 999)
self.assertIsInstance(sd.pop, types.MethodType)
# Wrong N args.
with aRaz(TERR): sd.setdefault()
with aRaz(TERR): sd.setdefault(1,2,3)
def test_pop(self):
'''
pop().
- The normal pop() behavior applies to all types of superdicts.
- Calls to pop() should remove the attr and the key.
'''
# Superdict:
sd = Superdict(a = 11, b = 22)
# - regular attribute.
aEq(sd.pop('a'), 11)
aEq(sd.get('a'), None)
aEq(getattr(sd, 'a', None), None)
aEq(sd.pop('z', 777), 777)
# - protected attribute.
sd.pop = 33
aEq(sd.pop('pop'), 33)
aEq(sd.get('pop'), None)
self.assertIsInstance(getattr(sd, 'pop', None), types.MethodType)
# - attributes that do not exist.
aEq(sd.pop('update', 1234), 1234)
with aRaz(KERR): sd.pop('update')
with aRaz(KERR): sd.pop('z')
# - wrong N of args.
with aRaz(TERR): sd.pop()
with aRaz(TERR): sd.pop('z', 1234, 567)
# StrictSuperdict:
sd = StrictSuperdict('ab', a = 11, b = 22)
# - regular attribute.
aEq(sd.pop('a'), 11)
aEq(sd.pop('a', 99), 99)
# - non-approved attribute.
with aRaz(KERR): sd.pop('update')
with aRaz(KERR): sd.pop('z')
# RelaxedSuperdict:
overridden = 'get setdefault'.split()
sd = RelaxedSuperdict(overridden, a = 11, b = 22)
# - regular attribute.
aEq(sd.pop('a'), 11)
aEq(sd.pop('a', 99), 99)
# - overridden attribute.
sd.setdefault = 1234
aEq(sd.pop('setdefault'), 1234)