mirror of
https://github.com/python/cpython.git
synced 2025-11-03 19:34:08 +00:00
be19ed77dd
There's one major and one minor category still unfixed: doctests are the major category (and I hope to be able to augment the refactoring tool to refactor bona fide doctests soon); other code generating print statements in strings is the minor category. (Oh, and I don't know if the compiler package works.)
77 lines
1.8 KiB
Python
77 lines
1.8 KiB
Python
# Python test set -- part 3, built-in operations.
|
|
|
|
|
|
print('3. Operations')
|
|
print('XXX Mostly not yet implemented')
|
|
|
|
|
|
print('3.1 Dictionary lookups fail if __cmp__() raises an exception')
|
|
|
|
class BadDictKey:
|
|
|
|
def __hash__(self):
|
|
return hash(self.__class__)
|
|
|
|
def __eq__(self, other):
|
|
if isinstance(other, self.__class__):
|
|
print("raising error")
|
|
raise RuntimeError, "gotcha"
|
|
return other
|
|
|
|
d = {}
|
|
x1 = BadDictKey()
|
|
x2 = BadDictKey()
|
|
d[x1] = 1
|
|
for stmt in ['d[x2] = 2',
|
|
'z = d[x2]',
|
|
'x2 in d',
|
|
'd.get(x2)',
|
|
'd.setdefault(x2, 42)',
|
|
'd.pop(x2)',
|
|
'd.update({x2: 2})']:
|
|
try:
|
|
exec(stmt)
|
|
except RuntimeError:
|
|
print("%s: caught the RuntimeError outside" % (stmt,))
|
|
else:
|
|
print("%s: No exception passed through!" % (stmt,)) # old CPython behavior
|
|
|
|
|
|
# Dict resizing bug, found by Jack Jansen in 2.2 CVS development.
|
|
# This version got an assert failure in debug build, infinite loop in
|
|
# release build. Unfortunately, provoking this kind of stuff requires
|
|
# a mix of inserts and deletes hitting exactly the right hash codes in
|
|
# exactly the right order, and I can't think of a randomized approach
|
|
# that would be *likely* to hit a failing case in reasonable time.
|
|
|
|
d = {}
|
|
for i in range(5):
|
|
d[i] = i
|
|
for i in range(5):
|
|
del d[i]
|
|
for i in range(5, 9): # i==8 was the problem
|
|
d[i] = i
|
|
|
|
|
|
# Another dict resizing bug (SF bug #1456209).
|
|
# This caused Segmentation faults or Illegal instructions.
|
|
|
|
class X(object):
|
|
def __hash__(self):
|
|
return 5
|
|
def __eq__(self, other):
|
|
if resizing:
|
|
d.clear()
|
|
return False
|
|
d = {}
|
|
resizing = False
|
|
d[X()] = 1
|
|
d[X()] = 2
|
|
d[X()] = 3
|
|
d[X()] = 4
|
|
d[X()] = 5
|
|
# now trigger a resize
|
|
resizing = True
|
|
d[9] = 6
|
|
|
|
print('resize bugs not triggered.')
|