mirror of
https://github.com/python/cpython
synced 2024-09-05 08:17:45 +00:00
gh-111147: Fix test_set_of_sets_reprs
in test_pprint
(GH-111148)
Make it stable and not depending on implementation details.
This commit is contained in:
parent
fb79e1ed4a
commit
7ac49e74c3
|
@ -9,7 +9,6 @@
|
|||
import random
|
||||
import re
|
||||
import test.support
|
||||
import test.test_set
|
||||
import types
|
||||
import unittest
|
||||
|
||||
|
@ -623,9 +622,6 @@ def test_set_reprs(self):
|
|||
self.assertEqual(pprint.pformat(frozenset3(range(7)), width=20),
|
||||
'frozenset3({0, 1, 2, 3, 4, 5, 6})')
|
||||
|
||||
@unittest.expectedFailure
|
||||
#See http://bugs.python.org/issue13907
|
||||
@test.support.cpython_only
|
||||
def test_set_of_sets_reprs(self):
|
||||
# This test creates a complex arrangement of frozensets and
|
||||
# compares the pretty-printed repr against a string hard-coded in
|
||||
|
@ -636,204 +632,106 @@ def test_set_of_sets_reprs(self):
|
|||
# partial ordering (subset relationships), the output of the
|
||||
# list.sort() method is undefined for lists of sets."
|
||||
#
|
||||
# In a nutshell, the test assumes frozenset({0}) will always
|
||||
# sort before frozenset({1}), but:
|
||||
#
|
||||
# >>> frozenset({0}) < frozenset({1})
|
||||
# False
|
||||
# >>> frozenset({1}) < frozenset({0})
|
||||
# False
|
||||
#
|
||||
# Consequently, this test is fragile and
|
||||
# implementation-dependent. Small changes to Python's sort
|
||||
# algorithm cause the test to fail when it should pass.
|
||||
# XXX Or changes to the dictionary implementation...
|
||||
# In this test we list all possible invariants of the result
|
||||
# for unordered frozensets.
|
||||
#
|
||||
# This test has a long history, see:
|
||||
# - https://github.com/python/cpython/commit/969fe57baa0eb80332990f9cda936a33e13fabef
|
||||
# - https://github.com/python/cpython/issues/58115
|
||||
# - https://github.com/python/cpython/issues/111147
|
||||
|
||||
cube_repr_tgt = """\
|
||||
{frozenset(): frozenset({frozenset({2}), frozenset({0}), frozenset({1})}),
|
||||
frozenset({0}): frozenset({frozenset(),
|
||||
frozenset({0, 2}),
|
||||
frozenset({0, 1})}),
|
||||
frozenset({1}): frozenset({frozenset(),
|
||||
frozenset({1, 2}),
|
||||
frozenset({0, 1})}),
|
||||
frozenset({2}): frozenset({frozenset(),
|
||||
frozenset({1, 2}),
|
||||
frozenset({0, 2})}),
|
||||
frozenset({1, 2}): frozenset({frozenset({2}),
|
||||
frozenset({1}),
|
||||
frozenset({0, 1, 2})}),
|
||||
frozenset({0, 2}): frozenset({frozenset({2}),
|
||||
frozenset({0}),
|
||||
frozenset({0, 1, 2})}),
|
||||
frozenset({0, 1}): frozenset({frozenset({0}),
|
||||
frozenset({1}),
|
||||
frozenset({0, 1, 2})}),
|
||||
frozenset({0, 1, 2}): frozenset({frozenset({1, 2}),
|
||||
frozenset({0, 2}),
|
||||
frozenset({0, 1})})}"""
|
||||
cube = test.test_set.cube(3)
|
||||
self.assertEqual(pprint.pformat(cube), cube_repr_tgt)
|
||||
cubo_repr_tgt = """\
|
||||
{frozenset({frozenset({0, 2}), frozenset({0})}): frozenset({frozenset({frozenset({0,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
1})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({0})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({0,
|
||||
2})})}),
|
||||
frozenset({frozenset({0, 1}), frozenset({1})}): frozenset({frozenset({frozenset({0,
|
||||
1}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
1})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({1})})}),
|
||||
frozenset({frozenset({1, 2}), frozenset({1})}): frozenset({frozenset({frozenset({1,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({1})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({0,
|
||||
1})})}),
|
||||
frozenset({frozenset({1, 2}), frozenset({2})}): frozenset({frozenset({frozenset({1,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({0,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({2})})}),
|
||||
frozenset({frozenset(), frozenset({0})}): frozenset({frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
1})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({1})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({2})})}),
|
||||
frozenset({frozenset(), frozenset({1})}): frozenset({frozenset({frozenset(),
|
||||
frozenset({0})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({2})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({0,
|
||||
1})})}),
|
||||
frozenset({frozenset({2}), frozenset()}): frozenset({frozenset({frozenset({2}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({0})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({1})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({0,
|
||||
2})})}),
|
||||
frozenset({frozenset({0, 1, 2}), frozenset({0, 1})}): frozenset({frozenset({frozenset({1,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
1})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({0,
|
||||
1})})}),
|
||||
frozenset({frozenset({0}), frozenset({0, 1})}): frozenset({frozenset({frozenset(),
|
||||
frozenset({0})}),
|
||||
frozenset({frozenset({0,
|
||||
1}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
2})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({0,
|
||||
1})})}),
|
||||
frozenset({frozenset({2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({0,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
2})}),
|
||||
frozenset({frozenset(),
|
||||
frozenset({2})})}),
|
||||
frozenset({frozenset({0, 1, 2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({1,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0,
|
||||
1}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0}),
|
||||
frozenset({0,
|
||||
2})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({0,
|
||||
2})})}),
|
||||
frozenset({frozenset({1, 2}), frozenset({0, 1, 2})}): frozenset({frozenset({frozenset({0,
|
||||
2}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({0,
|
||||
1}),
|
||||
frozenset({0,
|
||||
1,
|
||||
2})}),
|
||||
frozenset({frozenset({2}),
|
||||
frozenset({1,
|
||||
2})}),
|
||||
frozenset({frozenset({1}),
|
||||
frozenset({1,
|
||||
2})})})}"""
|
||||
import textwrap
|
||||
|
||||
cubo = test.test_set.linegraph(cube)
|
||||
self.assertEqual(pprint.pformat(cubo), cubo_repr_tgt)
|
||||
# Single-line, always ordered:
|
||||
fs0 = frozenset()
|
||||
fs1 = frozenset(('abc', 'xyz'))
|
||||
data = frozenset((fs0, fs1))
|
||||
self.assertEqual(pprint.pformat(data),
|
||||
'frozenset({%r, %r})' % (fs0, fs1))
|
||||
self.assertEqual(pprint.pformat(data), repr(data))
|
||||
|
||||
fs2 = frozenset(('one', 'two'))
|
||||
data = {fs2: frozenset((fs0, fs1))}
|
||||
self.assertEqual(pprint.pformat(data),
|
||||
"{%r: frozenset({%r, %r})}" % (fs2, fs0, fs1))
|
||||
self.assertEqual(pprint.pformat(data), repr(data))
|
||||
|
||||
# Single-line, unordered:
|
||||
fs1 = frozenset(("xyz", "qwerty"))
|
||||
fs2 = frozenset(("abcd", "spam"))
|
||||
fs = frozenset((fs1, fs2))
|
||||
self.assertEqual(pprint.pformat(fs), repr(fs))
|
||||
|
||||
# Multiline, unordered:
|
||||
def check(res, invariants):
|
||||
self.assertIn(res, [textwrap.dedent(i).strip() for i in invariants])
|
||||
|
||||
# Inner-most frozensets are singleline, result is multiline, unordered:
|
||||
fs1 = frozenset(('regular string', 'other string'))
|
||||
fs2 = frozenset(('third string', 'one more string'))
|
||||
check(
|
||||
pprint.pformat(frozenset((fs1, fs2))),
|
||||
[
|
||||
"""
|
||||
frozenset({%r,
|
||||
%r})
|
||||
""" % (fs1, fs2),
|
||||
"""
|
||||
frozenset({%r,
|
||||
%r})
|
||||
""" % (fs2, fs1),
|
||||
],
|
||||
)
|
||||
|
||||
# Everything is multiline, unordered:
|
||||
check(
|
||||
pprint.pformat(
|
||||
frozenset((
|
||||
frozenset((
|
||||
"xyz very-very long string",
|
||||
"qwerty is also absurdly long",
|
||||
)),
|
||||
frozenset((
|
||||
"abcd is even longer that before",
|
||||
"spam is not so long",
|
||||
)),
|
||||
)),
|
||||
),
|
||||
[
|
||||
"""
|
||||
frozenset({frozenset({'abcd is even longer that before',
|
||||
'spam is not so long'}),
|
||||
frozenset({'qwerty is also absurdly long',
|
||||
'xyz very-very long string'})})
|
||||
""",
|
||||
|
||||
"""
|
||||
frozenset({frozenset({'abcd is even longer that before',
|
||||
'spam is not so long'}),
|
||||
frozenset({'xyz very-very long string',
|
||||
'qwerty is also absurdly long'})})
|
||||
""",
|
||||
|
||||
"""
|
||||
frozenset({frozenset({'qwerty is also absurdly long',
|
||||
'xyz very-very long string'}),
|
||||
frozenset({'abcd is even longer that before',
|
||||
'spam is not so long'})})
|
||||
""",
|
||||
|
||||
"""
|
||||
frozenset({frozenset({'qwerty is also absurdly long',
|
||||
'xyz very-very long string'}),
|
||||
frozenset({'spam is not so long',
|
||||
'abcd is even longer that before'})})
|
||||
""",
|
||||
],
|
||||
)
|
||||
|
||||
def test_depth(self):
|
||||
nested_tuple = (1, (2, (3, (4, (5, 6)))))
|
||||
|
|
Loading…
Reference in a new issue