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Port test_userdict.py to PyUnit. From SF patch #662807, 

with additional tests for setdefault(), pop() and popitem().
This commit is contained in:
Walter Dörwald 2003-01-19 23:26:59 +00:00
parent 9c564755b8
commit e28be59686
1 changed files with 195 additions and 155 deletions
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262
Lib/test/test_userdict.py
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@ -1,7 +1,8 @@
# Check every path through every method of UserDict # Check every path through every method of UserDict
from test.test_support import verify, verbose import test.test_support, unittest
from UserDict import UserDict, IterableUserDict
import UserDict
d0 = {} d0 = {}
d1 = {"one": 1} d1 = {"one": 1}
@ -10,119 +11,112 @@ d3 = {"one": 1, "two": 3, "three": 5}
d4 = {"one": None, "two": None} d4 = {"one": None, "two": None}
d5 = {"one": 1, "two": 1} d5 = {"one": 1, "two": 1}
class UserDictTest(unittest.TestCase):
def test_all(self):
# Test constructors # Test constructors
u = UserDict.UserDict()
u0 = UserDict.UserDict(d0)
u1 = UserDict.UserDict(d1)
u2 = UserDict.IterableUserDict(d2)
u = UserDict() uu = UserDict.UserDict(u)
u0 = UserDict(d0) uu0 = UserDict.UserDict(u0)
u1 = UserDict(d1) uu1 = UserDict.UserDict(u1)
u2 = IterableUserDict(d2) uu2 = UserDict.UserDict(u2)
uu = UserDict(u) # keyword arg constructor
uu0 = UserDict(u0) self.assertEqual(UserDict.UserDict(one=1, two=2), d2)
uu1 = UserDict(u1) # item sequence constructor
uu2 = UserDict(u2) self.assertEqual(UserDict.UserDict([('one',1), ('two',2)]), d2)
self.assertEqual(UserDict.UserDict(dict=[('one',1), ('two',2)]), d2)
# both together
self.assertEqual(UserDict.UserDict([('one',1), ('two',2)], two=3, three=5), d3)
verify(UserDict(one=1, two=2) == d2) # keyword arg constructor # alternate constructor
verify(UserDict([('one',1), ('two',2)]) == d2) # item sequence constructor self.assertEqual(UserDict.UserDict.fromkeys('one two'.split()), d4)
verify(UserDict(dict=[('one',1), ('two',2)]) == d2) self.assertEqual(UserDict.UserDict().fromkeys('one two'.split()), d4)
verify(UserDict([('one',1), ('two',2)], two=3, three=5) == d3) # both together self.assertEqual(UserDict.UserDict.fromkeys('one two'.split(), 1), d5)
self.assertEqual(UserDict.UserDict().fromkeys('one two'.split(), 1), d5)
verify(UserDict.fromkeys('one two'.split()) == d4) # alternate constructor self.assert_(u1.fromkeys('one two'.split()) is not u1)
verify(UserDict().fromkeys('one two'.split()) == d4) self.assert_(isinstance(u1.fromkeys('one two'.split()), UserDict.UserDict))
verify(UserDict.fromkeys('one two'.split(), 1) == d5) self.assert_(isinstance(u2.fromkeys('one two'.split()), UserDict.IterableUserDict))
verify(UserDict().fromkeys('one two'.split(), 1) == d5)
verify(u1.fromkeys('one two'.split()) is not u1)
verify(isinstance(u1.fromkeys('one two'.split()), UserDict))
verify(isinstance(u2.fromkeys('one two'.split()), IterableUserDict))
# Test __repr__ # Test __repr__
self.assertEqual(str(u0), str(d0))
verify(str(u0) == str(d0)) self.assertEqual(repr(u1), repr(d1))
verify(repr(u1) == repr(d1)) self.assertEqual(`u2`, `d2`)
verify(`u2` == `d2`)
# Test __cmp__ and __len__ # Test __cmp__ and __len__
all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2] all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2]
for a in all: for a in all:
for b in all: for b in all:
verify(cmp(a, b) == cmp(len(a), len(b))) self.assertEqual(cmp(a, b), cmp(len(a), len(b)))
# Test __getitem__ # Test __getitem__
self.assertEqual(u2["one"], 1)
verify(u2["one"] == 1) self.assertRaises(KeyError, u1.__getitem__, "two")
try:
u1["two"]
except KeyError:
pass
else:
verify(0, "u1['two'] shouldn't exist")
# Test __setitem__ # Test __setitem__
u3 = UserDict.UserDict(u2)
u3 = UserDict(u2)
u3["two"] = 2 u3["two"] = 2
u3["three"] = 3 u3["three"] = 3
# Test __delitem__ # Test __delitem__
del u3["three"] del u3["three"]
try: self.assertRaises(KeyError, u3.__delitem__, "three")
del u3["three"]
except KeyError:
pass
else:
verify(0, "u3['three'] shouldn't exist")
# Test clear # Test clear
u3.clear() u3.clear()
verify(u3 == {}) self.assertEqual(u3, {})
# Test copy() # Test copy()
u2a = u2.copy() u2a = u2.copy()
verify(u2a == u2) self.assertEqual(u2a, u2)
u2b = UserDict.UserDict(x=42, y=23)
u2c = u2b.copy() # making a copy of a UserDict is special cased
self.assertEqual(u2b, u2c)
class MyUserDict(UserDict): class MyUserDict(UserDict.UserDict):
def display(self): print self def display(self): print self
m2 = MyUserDict(u2) m2 = MyUserDict(u2)
m2a = m2.copy() m2a = m2.copy()
verify(m2a == m2) self.assertEqual(m2a, m2)
# SF bug #476616 -- copy() of UserDict subclass shared data # SF bug #476616 -- copy() of UserDict subclass shared data
m2['foo'] = 'bar' m2['foo'] = 'bar'
verify(m2a != m2) self.assertNotEqual(m2a, m2)
# Test keys, items, values # Test keys, items, values
self.assertEqual(u2.keys(), d2.keys())
verify(u2.keys() == d2.keys()) self.assertEqual(u2.items(), d2.items())
verify(u2.items() == d2.items()) self.assertEqual(u2.values(), d2.values())
verify(u2.values() == d2.values())
# Test has_key and "in". # Test has_key and "in".
for i in u2.keys(): for i in u2.keys():
verify(u2.has_key(i) == 1) self.assert_(u2.has_key(i))
verify((i in u2) == 1) self.assert_(i in u2)
verify(u1.has_key(i) == d1.has_key(i)) self.assertEqual(u1.has_key(i), d1.has_key(i))
verify((i in u1) == (i in d1)) self.assertEqual(i in u1, i in d1)
verify(u0.has_key(i) == d0.has_key(i)) self.assertEqual(u0.has_key(i), d0.has_key(i))
verify((i in u0) == (i in d0)) self.assertEqual(i in u0, i in d0)
# Test update # Test update
t = UserDict.UserDict()
t = UserDict()
t.update(u2) t.update(u2)
verify(t == u2) self.assertEqual(t, u2)
class Items:
def items(self):
return (("x", 42), ("y", 23))
t = UserDict.UserDict()
t.update(Items())
self.assertEqual(t, {"x": 42, "y": 23})
# Test get # Test get
for i in u2.keys(): for i in u2.keys():
verify(u2.get(i) == u2[i]) self.assertEqual(u2.get(i), u2[i])
verify(u1.get(i) == d1.get(i)) self.assertEqual(u1.get(i), d1.get(i))
verify(u0.get(i) == d0.get(i)) self.assertEqual(u0.get(i), d0.get(i))
# Test "in" iteration. # Test "in" iteration.
for i in xrange(20): for i in xrange(20):
@ -133,14 +127,28 @@ for k in u2:
ikeys.sort() ikeys.sort()
keys = u2.keys() keys = u2.keys()
keys.sort() keys.sort()
verify(ikeys == keys) self.assertEqual(ikeys, keys)
# Test setdefault
t = UserDict.UserDict()
self.assertEqual(t.setdefault("x", 42), 42)
self.assert_(t.has_key("x"))
self.assertEqual(t.setdefault("x", 23), 42)
# Test pop
t = UserDict.UserDict(x=42)
self.assertEqual(t.pop("x"), 42)
self.assertRaises(KeyError, t.pop, "x")
# Test popitem
t = UserDict.UserDict(x=42)
self.assertEqual(t.popitem(), ("x", 42))
self.assertRaises(KeyError, t.popitem)
########################## ##########################
# Test Dict Mixin # Test Dict Mixin
from UserDict import DictMixin class SeqDict(UserDict.DictMixin):
class SeqDict(DictMixin):
"""Dictionary lookalike implemented with lists. """Dictionary lookalike implemented with lists.
Used to test and demonstrate DictMixin Used to test and demonstrate DictMixin
@ -171,67 +179,99 @@ class SeqDict(DictMixin):
def keys(self): def keys(self):
return list(self.keylist) return list(self.keylist)
class UserDictMixinTest(unittest.TestCase):
def test_all(self):
## Setup test and verify working of the test class ## Setup test and verify working of the test class
s = SeqDict() # check init
s[10] = 'ten' # exercise setitem # check init
s = SeqDict()
# exercise setitem
s[10] = 'ten'
s[20] = 'twenty' s[20] = 'twenty'
s[30] = 'thirty' s[30] = 'thirty'
del s[20] # exercise delitem
verify(s[10] == 'ten') # check getitem and setitem # exercise delitem
verify(s.keys() == [10, 30]) # check keys() and delitem del s[20]
# check getitem and setitem
self.assertEqual(s[10], 'ten')
# check keys() and delitem
self.assertEqual(s.keys(), [10, 30])
## Now, test the DictMixin methods one by one ## Now, test the DictMixin methods one by one
verify(s.has_key(10)) # has_key # has_key
verify(not s.has_key(20)) self.assert_(s.has_key(10))
self.assert_(not s.has_key(20))
verify(10 in s) # __contains__ # __contains__
verify(20 not in s) self.assert_(10 in s)
self.assert_(20 not in s)
verify([k for k in s] == [10, 30]) # __iter__ # __iter__
self.assertEqual([k for k in s], [10, 30])
verify(len(s) == 2) # __len__ # __len__
self.assertEqual(len(s), 2)
verify(list(s.iteritems()) == [(10,'ten'), (30, 'thirty')]) # iteritems # iteritems
self.assertEqual(list(s.iteritems()), [(10,'ten'), (30, 'thirty')])
verify(list(s.iterkeys()) == [10, 30]) # iterkeys # iterkeys
self.assertEqual(list(s.iterkeys()), [10, 30])
verify(list(s.itervalues()) == ['ten', 'thirty']) # itervalues # itervalues
self.assertEqual(list(s.itervalues()), ['ten', 'thirty'])
verify(s.values() == ['ten', 'thirty']) # values # values
self.assertEqual(s.values(), ['ten', 'thirty'])
verify(s.items() == [(10,'ten'), (30, 'thirty')]) # items # items
self.assertEqual(s.items(), [(10,'ten'), (30, 'thirty')])
verify(s.get(10) == 'ten') # get # get
verify(s.get(15,'fifteen') == 'fifteen') self.assertEqual(s.get(10), 'ten')
verify(s.get(15) == None) self.assertEqual(s.get(15,'fifteen'), 'fifteen')
self.assertEqual(s.get(15), None)
verify(s.setdefault(40, 'forty') == 'forty') # setdefault # setdefault
verify(s.setdefault(10, 'null') == 'ten') self.assertEqual(s.setdefault(40, 'forty'), 'forty')
self.assertEqual(s.setdefault(10, 'null'), 'ten')
del s[40] del s[40]
verify(s.pop(10) == 'ten') # pop # pop
verify(10 not in s) self.assertEqual(s.pop(10), 'ten')
self.assert_(10 not in s)
s[10] = 'ten' s[10] = 'ten'
k, v = s.popitem() # popitem # popitem
verify(k not in s) k, v = s.popitem()
self.assert_(k not in s)
s[k] = v s[k] = v
s.clear() # clear # clear
verify(len(s) == 0) s.clear()
self.assertEqual(len(s), 0)
try: # empty popitem # empty popitem
s.popitem() self.assertRaises(KeyError, s.popitem)
except KeyError:
pass
else:
verify(0, "popitem from an empty list should raise KeyError")
s.update({10: 'ten', 20:'twenty'}) # update # update
verify(s[10]=='ten' and s[20]=='twenty') s.update({10: 'ten', 20:'twenty'})
self.assertEqual(s[10], 'ten')
self.assertEqual(s[20], 'twenty')
verify(s == {10: 'ten', 20:'twenty'}) # cmp # cmp
self.assertEqual(s, {10: 'ten', 20:'twenty'})
t = SeqDict() t = SeqDict()
t[20] = 'twenty' t[20] = 'twenty'
t[10] = 'ten' t[10] = 'ten'
verify(s == t) self.assertEqual(s, t)
def test_main():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(UserDictTest))
suite.addTest(unittest.makeSuite(UserDictMixinTest))
test.test_support.run_suite(suite)
if __name__ == "__main__":
test_main()