mirror of
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de9725f135
NEEDS DOC CHANGES
A few more AttributeErrors turned into TypeErrors, but in test_contains
this time.
The full story for instance objects is pretty much unexplainable, because
instance_contains() tries its own flavor of iteration-based containment
testing first, and PySequence_Contains doesn't get a chance at it unless
instance_contains() blows up. A consequence is that
some_complex_number in some_instance
dies with a TypeError unless some_instance.__class__ defines __iter__ but
does not define __getitem__.
168 lines
3.3 KiB
Python
168 lines
3.3 KiB
Python
from test_support import TestFailed
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class base_set:
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def __init__(self, el):
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self.el = el
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class set(base_set):
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def __contains__(self, el):
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return self.el == el
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class seq(base_set):
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def __getitem__(self, n):
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return [self.el][n]
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def check(ok, *args):
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if not ok:
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raise TestFailed, " ".join(map(str, args))
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a = base_set(1)
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b = set(1)
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c = seq(1)
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check(1 in b, "1 not in set(1)")
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check(0 not in b, "0 in set(1)")
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check(1 in c, "1 not in seq(1)")
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check(0 not in c, "0 in seq(1)")
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try:
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1 in a
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check(0, "in base_set did not raise error")
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except TypeError:
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pass
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try:
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1 not in a
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check(0, "not in base_set did not raise error")
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except TypeError:
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pass
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# Test char in string
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check('c' in 'abc', "'c' not in 'abc'")
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check('d' not in 'abc', "'d' in 'abc'")
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try:
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'' in 'abc'
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check(0, "'' in 'abc' did not raise error")
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except TypeError:
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pass
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try:
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'ab' in 'abc'
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check(0, "'ab' in 'abc' did not raise error")
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except TypeError:
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pass
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try:
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None in 'abc'
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check(0, "None in 'abc' did not raise error")
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except TypeError:
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pass
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# Test char in Unicode
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check('c' in u'abc', "'c' not in u'abc'")
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check('d' not in u'abc', "'d' in u'abc'")
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try:
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'' in u'abc'
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check(0, "'' in u'abc' did not raise error")
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except TypeError:
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pass
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try:
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'ab' in u'abc'
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check(0, "'ab' in u'abc' did not raise error")
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except TypeError:
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pass
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try:
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None in u'abc'
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check(0, "None in u'abc' did not raise error")
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except TypeError:
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pass
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# Test Unicode char in Unicode
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check(u'c' in u'abc', "u'c' not in u'abc'")
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check(u'd' not in u'abc', "u'd' in u'abc'")
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try:
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u'' in u'abc'
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check(0, "u'' in u'abc' did not raise error")
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except TypeError:
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pass
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try:
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u'ab' in u'abc'
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check(0, "u'ab' in u'abc' did not raise error")
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except TypeError:
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pass
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# Test Unicode char in string
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check(u'c' in 'abc', "u'c' not in 'abc'")
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check(u'd' not in 'abc', "u'd' in 'abc'")
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try:
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u'' in 'abc'
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check(0, "u'' in 'abc' did not raise error")
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except TypeError:
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pass
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try:
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u'ab' in 'abc'
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check(0, "u'ab' in 'abc' did not raise error")
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except TypeError:
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pass
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# A collection of tests on builtin sequence types
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a = range(10)
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for i in a:
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check(i in a, "%s not in %s" % (`i`, `a`))
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check(16 not in a, "16 not in %s" % `a`)
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check(a not in a, "%s not in %s" % (`a`, `a`))
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a = tuple(a)
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for i in a:
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check(i in a, "%s not in %s" % (`i`, `a`))
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check(16 not in a, "16 not in %s" % `a`)
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check(a not in a, "%s not in %s" % (`a`, `a`))
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class Deviant1:
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"""Behaves strangely when compared
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This class is designed to make sure that the contains code
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works when the list is modified during the check.
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"""
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aList = range(15)
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def __cmp__(self, other):
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if other == 12:
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self.aList.remove(12)
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self.aList.remove(13)
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self.aList.remove(14)
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return 1
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check(Deviant1() not in Deviant1.aList, "Deviant1 failed")
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class Deviant2:
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"""Behaves strangely when compared
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This class raises an exception during comparison. That in
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turn causes the comparison to fail with a TypeError.
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"""
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def __cmp__(self, other):
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if other == 4:
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raise RuntimeError, "gotcha"
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try:
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check(Deviant2() not in a, "oops")
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except TypeError:
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pass
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