mirror of
https://github.com/python/cpython.git
synced 2025-10-26 11:14:33 +00:00
219 lines
7.6 KiB
Python
219 lines
7.6 KiB
Python
# Check every path through every method of UserDict
|
|
|
|
from test import mapping_tests
|
|
import unittest
|
|
import collections
|
|
|
|
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(mapping_tests.TestHashMappingProtocol):
|
|
type2test = collections.UserDict
|
|
|
|
def test_all(self):
|
|
# Test constructors
|
|
u = collections.UserDict()
|
|
u0 = collections.UserDict(d0)
|
|
u1 = collections.UserDict(d1)
|
|
u2 = collections.UserDict(d2)
|
|
|
|
uu = collections.UserDict(u)
|
|
uu0 = collections.UserDict(u0)
|
|
uu1 = collections.UserDict(u1)
|
|
uu2 = collections.UserDict(u2)
|
|
|
|
# keyword arg constructor
|
|
self.assertEqual(collections.UserDict(one=1, two=2), d2)
|
|
# item sequence constructor
|
|
self.assertEqual(collections.UserDict([('one',1), ('two',2)]), d2)
|
|
self.assertEqual(collections.UserDict(dict=[('one',1), ('two',2)]),
|
|
{'dict': [('one', 1), ('two', 2)]})
|
|
# both together
|
|
self.assertEqual(collections.UserDict([('one',1), ('two',2)], two=3, three=5), d3)
|
|
|
|
# alternate constructor
|
|
self.assertEqual(collections.UserDict.fromkeys('one two'.split()), d4)
|
|
self.assertEqual(collections.UserDict().fromkeys('one two'.split()), d4)
|
|
self.assertEqual(collections.UserDict.fromkeys('one two'.split(), 1), d5)
|
|
self.assertEqual(collections.UserDict().fromkeys('one two'.split(), 1), d5)
|
|
self.assertTrue(u1.fromkeys('one two'.split()) is not u1)
|
|
self.assertIsInstance(u1.fromkeys('one two'.split()), collections.UserDict)
|
|
self.assertIsInstance(u2.fromkeys('one two'.split()), collections.UserDict)
|
|
|
|
# Test __repr__
|
|
self.assertEqual(str(u0), str(d0))
|
|
self.assertEqual(repr(u1), repr(d1))
|
|
self.assertIn(repr(u2), ("{'one': 1, 'two': 2}",
|
|
"{'two': 2, 'one': 1}"))
|
|
|
|
# Test rich comparison and __len__
|
|
all = [d0, d1, d2, u, u0, u1, u2, uu, uu0, uu1, uu2]
|
|
for a in all:
|
|
for b in all:
|
|
self.assertEqual(a == b, len(a) == len(b))
|
|
|
|
# Test __getitem__
|
|
self.assertEqual(u2["one"], 1)
|
|
self.assertRaises(KeyError, u1.__getitem__, "two")
|
|
|
|
# Test __setitem__
|
|
u3 = collections.UserDict(u2)
|
|
u3["two"] = 2
|
|
u3["three"] = 3
|
|
|
|
# Test __delitem__
|
|
del u3["three"]
|
|
self.assertRaises(KeyError, u3.__delitem__, "three")
|
|
|
|
# Test clear
|
|
u3.clear()
|
|
self.assertEqual(u3, {})
|
|
|
|
# Test copy()
|
|
u2a = u2.copy()
|
|
self.assertEqual(u2a, u2)
|
|
u2b = collections.UserDict(x=42, y=23)
|
|
u2c = u2b.copy() # making a copy of a UserDict is special cased
|
|
self.assertEqual(u2b, u2c)
|
|
|
|
class MyUserDict(collections.UserDict):
|
|
def display(self): print(self)
|
|
|
|
m2 = MyUserDict(u2)
|
|
m2a = m2.copy()
|
|
self.assertEqual(m2a, m2)
|
|
|
|
# SF bug #476616 -- copy() of UserDict subclass shared data
|
|
m2['foo'] = 'bar'
|
|
self.assertNotEqual(m2a, m2)
|
|
|
|
# Test keys, items, values
|
|
self.assertEqual(sorted(u2.keys()), sorted(d2.keys()))
|
|
self.assertEqual(sorted(u2.items()), sorted(d2.items()))
|
|
self.assertEqual(sorted(u2.values()), sorted(d2.values()))
|
|
|
|
# Test "in".
|
|
for i in u2.keys():
|
|
self.assertIn(i, u2)
|
|
self.assertEqual(i in u1, i in d1)
|
|
self.assertEqual(i in u0, i in d0)
|
|
|
|
# Test update
|
|
t = collections.UserDict()
|
|
t.update(u2)
|
|
self.assertEqual(t, u2)
|
|
|
|
# Test get
|
|
for i in u2.keys():
|
|
self.assertEqual(u2.get(i), u2[i])
|
|
self.assertEqual(u1.get(i), d1.get(i))
|
|
self.assertEqual(u0.get(i), d0.get(i))
|
|
|
|
# Test "in" iteration.
|
|
for i in range(20):
|
|
u2[i] = str(i)
|
|
ikeys = []
|
|
for k in u2:
|
|
ikeys.append(k)
|
|
keys = u2.keys()
|
|
self.assertEqual(set(ikeys), set(keys))
|
|
|
|
# Test setdefault
|
|
t = collections.UserDict()
|
|
self.assertEqual(t.setdefault("x", 42), 42)
|
|
self.assertIn("x", t)
|
|
self.assertEqual(t.setdefault("x", 23), 42)
|
|
|
|
# Test pop
|
|
t = collections.UserDict(x=42)
|
|
self.assertEqual(t.pop("x"), 42)
|
|
self.assertRaises(KeyError, t.pop, "x")
|
|
self.assertEqual(t.pop("x", 1), 1)
|
|
t["x"] = 42
|
|
self.assertEqual(t.pop("x", 1), 42)
|
|
|
|
# Test popitem
|
|
t = collections.UserDict(x=42)
|
|
self.assertEqual(t.popitem(), ("x", 42))
|
|
self.assertRaises(KeyError, t.popitem)
|
|
|
|
def test_init(self):
|
|
for kw in 'self', 'other', 'iterable':
|
|
self.assertEqual(list(collections.UserDict(**{kw: 42}).items()),
|
|
[(kw, 42)])
|
|
self.assertEqual(list(collections.UserDict({}, dict=42).items()),
|
|
[('dict', 42)])
|
|
self.assertEqual(list(collections.UserDict({}, dict=None).items()),
|
|
[('dict', None)])
|
|
self.assertEqual(list(collections.UserDict(dict={'a': 42}).items()),
|
|
[('dict', {'a': 42})])
|
|
self.assertRaises(TypeError, collections.UserDict, 42)
|
|
self.assertRaises(TypeError, collections.UserDict, (), ())
|
|
self.assertRaises(TypeError, collections.UserDict.__init__)
|
|
|
|
def test_update(self):
|
|
for kw in 'self', 'dict', 'other', 'iterable':
|
|
d = collections.UserDict()
|
|
d.update(**{kw: 42})
|
|
self.assertEqual(list(d.items()), [(kw, 42)])
|
|
self.assertRaises(TypeError, collections.UserDict().update, 42)
|
|
self.assertRaises(TypeError, collections.UserDict().update, {}, {})
|
|
self.assertRaises(TypeError, collections.UserDict.update)
|
|
|
|
def test_missing(self):
|
|
# Make sure UserDict doesn't have a __missing__ method
|
|
self.assertEqual(hasattr(collections.UserDict, "__missing__"), False)
|
|
# 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 all
|
|
class D(collections.UserDict):
|
|
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(collections.UserDict):
|
|
def __missing__(self, key):
|
|
raise RuntimeError(key)
|
|
e = E()
|
|
try:
|
|
e[42]
|
|
except RuntimeError as err:
|
|
self.assertEqual(err.args, (42,))
|
|
else:
|
|
self.fail("e[42] didn't raise RuntimeError")
|
|
class F(collections.UserDict):
|
|
def __init__(self):
|
|
# An instance variable __missing__ should have no effect
|
|
self.__missing__ = lambda key: None
|
|
collections.UserDict.__init__(self)
|
|
f = F()
|
|
try:
|
|
f[42]
|
|
except KeyError as err:
|
|
self.assertEqual(err.args, (42,))
|
|
else:
|
|
self.fail("f[42] didn't raise KeyError")
|
|
class G(collections.UserDict):
|
|
pass
|
|
g = G()
|
|
try:
|
|
g[42]
|
|
except KeyError as err:
|
|
self.assertEqual(err.args, (42,))
|
|
else:
|
|
self.fail("g[42] didn't raise KeyError")
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|