# Check every path through every method of UserDict import test.test_support, unittest import UserDict d0 = {} d1 = {"one": 1} d2 = {"one": 1, "two": 2} d3 = {"one": 1, "two": 3, "three": 5} d4 = {"one": None, "two": None} d5 = {"one": 1, "two": 1} class UserDictTest(unittest.TestCase): def test_all(self): # Test constructors u = UserDict.UserDict() u0 = UserDict.UserDict(d0) u1 = UserDict.UserDict(d1) u2 = UserDict.IterableUserDict(d2) uu = UserDict.UserDict(u) uu0 = UserDict.UserDict(u0) uu1 = UserDict.UserDict(u1) uu2 = UserDict.UserDict(u2) # keyword arg constructor self.assertEquals(UserDict.UserDict(one=1, two=2), d2) # item sequence constructor self.assertEquals(UserDict.UserDict([('one',1), ('two',2)]), d2) self.assertEquals(UserDict.UserDict(dict=[('one',1), ('two',2)]), d2) # both together self.assertEquals(UserDict.UserDict([('one',1), ('two',2)], two=3, three=5), d3) # alternate constructor self.assertEquals(UserDict.UserDict.fromkeys('one two'.split()), d4) self.assertEquals(UserDict.UserDict().fromkeys('one two'.split()), d4) self.assertEquals(UserDict.UserDict.fromkeys('one two'.split(), 1), d5) self.assertEquals(UserDict.UserDict().fromkeys('one two'.split(), 1), d5) self.assert_(u1.fromkeys('one two'.split()) is not u1) self.assert_(isinstance(u1.fromkeys('one two'.split()), UserDict.UserDict)) self.assert_(isinstance(u2.fromkeys('one two'.split()), UserDict.IterableUserDict)) # Test __repr__ self.assertEquals(str(u0), str(d0)) self.assertEquals(repr(u1), repr(d1)) self.assertEquals(`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: self.assertEquals(cmp(a, b), cmp(len(a), len(b))) # Test __getitem__ self.assertEquals(u2["one"], 1) self.assertRaises(KeyError, u1.__getitem__, "two") # Test __setitem__ u3 = UserDict.UserDict(u2) u3["two"] = 2 u3["three"] = 3 # Test __delitem__ del u3["three"] self.assertRaises(KeyError, u3.__delitem__, "three") # Test clear u3.clear() self.assertEquals(u3, {}) # Test copy() u2a = u2.copy() self.assertEquals(u2a, u2) class MyUserDict(UserDict.UserDict): def display(self): print self m2 = MyUserDict(u2) m2a = m2.copy() self.assertEquals(m2a, m2) # SF bug #476616 -- copy() of UserDict subclass shared data m2['foo'] = 'bar' self.assertNotEquals(m2a, m2) # Test keys, items, values self.assertEquals(u2.keys(), d2.keys()) self.assertEquals(u2.items(), d2.items()) self.assertEquals(u2.values(), d2.values()) # Test has_key and "in". for i in u2.keys(): self.assert_(u2.has_key(i)) self.assert_(i in u2) self.assertEquals(u1.has_key(i), d1.has_key(i)) self.assertEquals(i in u1, i in d1) self.assertEquals(u0.has_key(i), d0.has_key(i)) self.assertEquals(i in u0, i in d0) # Test update t = UserDict.UserDict() t.update(u2) self.assertEquals(t, u2) # Test get for i in u2.keys(): self.assertEquals(u2.get(i), u2[i]) self.assertEquals(u1.get(i), d1.get(i)) self.assertEquals(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() self.assertEquals(ikeys, keys) ########################## # Test Dict Mixin class SeqDict(UserDict.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): try: i = self.keylist.index(key) self.valuelist[i] = value except ValueError: 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) class UserDictMixinTest(unittest.TestCase): def test_all(self): ## Setup test and verify working of the test class # check init s = SeqDict() # exercise setitem s[10] = 'ten' s[20] = 'twenty' s[30] = 'thirty' # exercise delitem del s[20] # check getitem and setitem self.assertEquals(s[10], 'ten') # check keys() and delitem self.assertEquals(s.keys(), [10, 30]) ## Now, test the DictMixin methods one by one # has_key self.assert_(s.has_key(10)) self.assert_(not s.has_key(20)) # __contains__ self.assert_(10 in s) self.assert_(20 not in s) # __iter__ self.assertEquals([k for k in s], [10, 30]) # __len__ self.assertEquals(len(s), 2) # iteritems self.assertEquals(list(s.iteritems()), [(10,'ten'), (30, 'thirty')]) # iterkeys self.assertEquals(list(s.iterkeys()), [10, 30]) # itervalues self.assertEquals(list(s.itervalues()), ['ten', 'thirty']) # values self.assertEquals(s.values(), ['ten', 'thirty']) # items self.assertEquals(s.items(), [(10,'ten'), (30, 'thirty')]) # get self.assertEquals(s.get(10), 'ten') self.assertEquals(s.get(15,'fifteen'), 'fifteen') self.assertEquals(s.get(15), None) # setdefault self.assertEquals(s.setdefault(40, 'forty'), 'forty') self.assertEquals(s.setdefault(10, 'null'), 'ten') del s[40] # pop self.assertEquals(s.pop(10), 'ten') self.assert_(10 not in s) s[10] = 'ten' # popitem k, v = s.popitem() self.assert_(k not in s) s[k] = v # clear s.clear() self.assertEquals(len(s), 0) # empty popitem self.assertRaises(KeyError, s.popitem) # update s.update({10: 'ten', 20:'twenty'}) self.assertEquals(s[10], 'ten') self.assertEquals(s[20], 'twenty') # cmp self.assertEquals(s, {10: 'ten', 20:'twenty'}) t = SeqDict() t[20] = 'twenty' t[10] = 'ten' self.assertEquals(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()