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# Check every path through every method of UserDict
from test.test_support import verify, verbose
from UserDict import UserDict, IterableUserDict
d0 = {}
d1 = {"one": 1}
d2 = {"one": 1, "two": 2}
# Test constructors
u = UserDict()
u0 = UserDict(d0)
u1 = UserDict(d1)
u2 = IterableUserDict(d2)
uu = UserDict(u)
uu0 = UserDict(u0)
uu1 = UserDict(u1)
uu2 = UserDict(u2)
# Test __repr__
verify(str(u0) == str(d0))
verify(repr(u1) == repr(d1))
verify(`u2` == `d2`)
# Test __cmp__ and __len__
all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2]
for a in all:
for b in all:
verify(cmp(a, b) == cmp(len(a), len(b)))
# Test __getitem__
verify(u2["one"] == 1)
try:
u1["two"]
except KeyError:
pass
else:
verify(0, "u1['two'] shouldn't exist")
# Test __setitem__
u3 = UserDict(u2)
u3["two"] = 2
u3["three"] = 3
# Test __delitem__
del u3["three"]
try:
del u3["three"]
except KeyError:
pass
else:
verify(0, "u3['three'] shouldn't exist")
# Test clear
u3.clear()
verify(u3 == {})
# Test copy()
u2a = u2.copy()
verify(u2a == u2)
class MyUserDict(UserDict):
def display(self): print self
m2 = MyUserDict(u2)
m2a = m2.copy()
verify(m2a == m2)
# SF bug #476616 -- copy() of UserDict subclass shared data
m2['foo'] = 'bar'
verify(m2a != m2)
# Test keys, items, values
verify(u2.keys() == d2.keys())
verify(u2.items() == d2.items())
verify(u2.values() == d2.values())
# Test has_key and "in".
for i in u2.keys():
verify(u2.has_key(i) == 1)
verify((i in u2) == 1)
verify(u1.has_key(i) == d1.has_key(i))
verify((i in u1) == (i in d1))
verify(u0.has_key(i) == d0.has_key(i))
verify((i in u0) == (i in d0))
# Test update
t = UserDict()
t.update(u2)
verify(t == u2)
# Test get
for i in u2.keys():
verify(u2.get(i) == u2[i])
verify(u1.get(i) == d1.get(i))
verify(u0.get(i) == d0.get(i))
# Test "in" iteration.
for i in xrange(20):
u2[i] = str(i)
ikeys = []
for k in u2:
ikeys.append(k)
ikeys.sort()
keys = u2.keys()
keys.sort()
verify(ikeys == keys)
##########################
# Test Dict Mixin
from UserDict import DictMixin
class SeqDict(DictMixin):
"""Dictionary lookalike implemented with lists.
Used to test and demonstrate DictMixin
"""
def __init__(self):
self.keylist = []
self.valuelist = []
def __getitem__(self, key):
try:
i = self.keylist.index(key)
except ValueError:
raise KeyError
return self.valuelist[i]
def __setitem__(self, key, value):
self.keylist.append(key)
self.valuelist.append(value)
def __delitem__(self, key):
try:
i = self.keylist.index(key)
except ValueError:
raise KeyError
self.keylist.pop(i)
self.valuelist.pop(i)
def keys(self):
return list(self.keylist)
## Setup test and verify working of the test class
s = SeqDict() # check init
s[10] = 'ten' # exercise setitem
s[20] = 'twenty'
s[30] = 'thirty'
del s[20] # exercise delitem
verify(s[10] == 'ten') # check getitem and setitem
verify(s.keys() == [10, 30]) # check keys() and delitem
## Now, test the DictMixin methods one by one
verify(s.has_key(10)) # has_key
verify(not s.has_key(20))
verify(10 in s) # __contains__
verify(20 not in s)
verify([k for k in s] == [10, 30]) # __iter__
verify(len(s) == 2) # __len__
verify(list(s.iteritems()) == [(10,'ten'), (30, 'thirty')]) # iteritems
verify(list(s.iterkeys()) == [10, 30]) # iterkeys
verify(list(s.itervalues()) == ['ten', 'thirty']) # itervalues
verify(s.values() == ['ten', 'thirty']) # values
verify(s.items() == [(10,'ten'), (30, 'thirty')]) # items
verify(s.get(10) == 'ten') # get
verify(s.get(15,'fifteen') == 'fifteen')
verify(s.get(15) == None)
verify(s.setdefault(40, 'forty') == 'forty') # setdefault
verify(s.setdefault(10, 'null') == 'ten')
del s[40]
verify(s.pop(10) == 'ten') # pop
verify(10 not in s)
s[10] = 'ten'
k, v = s.popitem() # popitem
verify(k not in s)
s[k] = v
s.clear() # clear
verify(len(s) == 0)
try: # empty popitem
s.popitem()
except KeyError:
pass
else:
verify(0, "popitem from an empty list should raise KeyError")
s.update({10: 'ten', 20:'twenty'}) # update
verify(s[10]=='ten' and s[20]=='twenty')
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