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Bring UserDict in-sync with changes to dict.

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Constructor accepts optional keyword arguments after a optional items list.
Add fromkeys() as an alternate constructor from an iterable over keys.
Expand related unittests.
This commit is contained in:
Raymond Hettinger 2002-11-27 08:29:11 +00:00
parent e33d3df030
commit e4827eb2a2
2 changed files with 25 additions and 6 deletions
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13
Lib/test/test_userdict.py
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@ -6,6 +6,9 @@ from UserDict import UserDict, IterableUserDict
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}
# Test constructors
@ -21,6 +24,16 @@ uu2 = UserDict(u2)
verify(UserDict(one=1, two=2) == d2) # keyword arg constructor
verify(UserDict([('one',1), ('two',2)]) == d2) # item sequence constructor
verify(UserDict(dict=[('one',1), ('two',2)]) == d2)
verify(UserDict([('one',1), ('two',2)], two=3, three=5) == d3) # both together
verify(UserDict.fromkeys('one two'.split()) == d4) # alternate constructor
verify(UserDict().fromkeys('one two'.split()) == d4)
verify(UserDict.fromkeys('one two'.split(), 1) == d5)
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__