From c8c640b4170fbbf213525f40b4156ff1bf0a0217 Mon Sep 17 00:00:00 2001 From: Sergey B Kirpichev Date: Wed, 11 Sep 2024 12:21:05 +0300 Subject: [PATCH] gh-123811: test that round() can return signed zero (GH-123829) (cherry picked from commit d2b9b6f919e92184420c8e13d078e83447ce7917) Co-authored-by: Sergey B Kirpichev --- Lib/test/test_float.py | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py index 5bd640617d6874..48dfa2beea6bc4 100644 --- a/Lib/test/test_float.py +++ b/Lib/test/test_float.py @@ -829,7 +829,7 @@ def test_short_repr(self): self.assertEqual(repr(float(negs)), str(float(negs))) @support.requires_IEEE_754 -class RoundTestCase(unittest.TestCase): +class RoundTestCase(unittest.TestCase, FloatsAreIdenticalMixin): def test_inf_nan(self): self.assertRaises(OverflowError, round, INF) @@ -859,10 +859,10 @@ def test_large_n(self): def test_small_n(self): for n in [-308, -309, -400, 1-2**31, -2**31, -2**31-1, -2**100]: - self.assertEqual(round(123.456, n), 0.0) - self.assertEqual(round(-123.456, n), -0.0) - self.assertEqual(round(1e300, n), 0.0) - self.assertEqual(round(1e-320, n), 0.0) + self.assertFloatsAreIdentical(round(123.456, n), 0.0) + self.assertFloatsAreIdentical(round(-123.456, n), -0.0) + self.assertFloatsAreIdentical(round(1e300, n), 0.0) + self.assertFloatsAreIdentical(round(1e-320, n), 0.0) def test_overflow(self): self.assertRaises(OverflowError, round, 1.6e308, -308)