mirror of
https://github.com/python/cpython.git
synced 2026-04-15 00:00:57 +00:00
ece712197d
* fix(unittest.util): Deduplicate tail elements in sorted_list_difference sorted_list_difference failed to deduplicate remaining elements when one list was exhausted, causing duplicate values in the result. Deduplicate before extending. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
66 lines
3 KiB
Python
66 lines
3 KiB
Python
import unittest
|
|
from unittest.util import safe_repr, sorted_list_difference, unorderable_list_difference
|
|
|
|
|
|
class TestUtil(unittest.TestCase):
|
|
def test_safe_repr(self):
|
|
class RaisingRepr:
|
|
def __repr__(self):
|
|
raise ValueError("Invalid repr()")
|
|
|
|
class LongRepr:
|
|
def __repr__(self):
|
|
return 'x' * 100
|
|
|
|
safe_repr(RaisingRepr())
|
|
self.assertEqual(safe_repr('foo'), "'foo'")
|
|
self.assertEqual(safe_repr(LongRepr(), short=True), 'x'*80 + ' [truncated]...')
|
|
|
|
def test_sorted_list_difference(self):
|
|
self.assertEqual(sorted_list_difference([], []), ([], []))
|
|
self.assertEqual(sorted_list_difference([1, 2], [2, 3]), ([1], [3]))
|
|
self.assertEqual(sorted_list_difference([1, 2], [1, 3]), ([2], [3]))
|
|
self.assertEqual(sorted_list_difference([1, 1, 1], [1, 2, 3]), ([], [2, 3]))
|
|
self.assertEqual(sorted_list_difference([4], [1, 2, 3, 4]), ([], [1, 2, 3]))
|
|
self.assertEqual(sorted_list_difference([1, 1], [2]), ([1], [2]))
|
|
self.assertEqual(sorted_list_difference([2], [1, 1]), ([2], [1]))
|
|
self.assertEqual(sorted_list_difference([1, 2], [1, 1]), ([2], []))
|
|
|
|
def test_sorted_list_difference_tail_deduplication(self):
|
|
# Tail deduplication when one list is exhausted before the other.
|
|
# These exercise the except-IndexError path in sorted_list_difference.
|
|
self.assertEqual(sorted_list_difference([], [0, 0]), ([], [0]))
|
|
self.assertEqual(sorted_list_difference([0, 0], []), ([0], []))
|
|
self.assertEqual(sorted_list_difference([], [1, 1, 2, 2]), ([], [1, 2]))
|
|
self.assertEqual(sorted_list_difference([1, 1, 2, 2], []), ([1, 2], []))
|
|
# One list exhausts mid-way, leaving duplicated tail in the other.
|
|
self.assertEqual(sorted_list_difference([1], [1, 2, 2, 3, 3]), ([], [2, 3]))
|
|
self.assertEqual(sorted_list_difference([1, 2, 2, 3, 3], [1]), ([2, 3], []))
|
|
|
|
def test_sorted_list_difference_strings(self):
|
|
self.assertEqual(
|
|
sorted_list_difference(['a', 'b'], ['b', 'c']),
|
|
(['a'], ['c']))
|
|
self.assertEqual(
|
|
sorted_list_difference([], ['a', 'a', 'b']),
|
|
([], ['a', 'b']))
|
|
self.assertEqual(
|
|
sorted_list_difference(['a', 'a', 'b'], []),
|
|
(['a', 'b'], []))
|
|
|
|
def test_sorted_list_difference_unhashable(self):
|
|
self.assertEqual(
|
|
sorted_list_difference([[1], [2]], [[2], [3]]),
|
|
([[1]], [[3]]))
|
|
self.assertEqual(
|
|
sorted_list_difference([], [[0], [0]]),
|
|
([], [[0]]))
|
|
self.assertEqual(
|
|
sorted_list_difference([[0], [0]], []),
|
|
([[0]], []))
|
|
|
|
def test_unorderable_list_difference(self):
|
|
self.assertEqual(unorderable_list_difference([], []), ([], []))
|
|
self.assertEqual(unorderable_list_difference([1, 2], []), ([2, 1], []))
|
|
self.assertEqual(unorderable_list_difference([], [1, 2]), ([], [1, 2]))
|
|
self.assertEqual(unorderable_list_difference([1, 2], [1, 3]), ([2], [3]))
|