/Lib/test/crashers/iter.py
http://unladen-swallow.googlecode.com/ · Python · 53 lines · 31 code · 14 blank · 8 comment · 3 complexity · 4822008d5b6240b83e1ecdce8ea4ec0a MD5 · raw file
- # Calls to PyIter_Next, or direct calls to tp_iternext, on an object
- # which might no longer be an iterable because its 'next' method was
- # removed. These are all variants of Issue3720.
- """
- Run this script with an argument between 1 and <N> to test for
- different crashes.
- """
- N = 8
- import sys
- class Foo(object):
- def __iter__(self):
- return self
- def next(self):
- del Foo.next
- return (1, 2)
- def case1():
- list(enumerate(Foo()))
- def case2():
- x, y = Foo()
- def case3():
- filter(None, Foo())
- def case4():
- map(None, Foo(), Foo())
- def case5():
- max(Foo())
- def case6():
- sum(Foo(), ())
- def case7():
- dict(Foo())
- def case8():
- sys.stdout.writelines(Foo())
- # etc...
- if __name__ == '__main__':
- if len(sys.argv) < 2:
- print __doc__.replace('<N>', str(N))
- else:
- n = int(sys.argv[1])
- func = globals()['case%d' % n]
- func()