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gh-136517: Print uncollectable objects if DEBUG_UNCOLLECTABLE mode was set (#136518)

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Sergey Miryanov 2025-07-10 14:13:23 -07:00 • committed by GitHub
parent 59acdba820
commit c560df9658
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3 changed files with 8 additions and 1 deletions
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5
Lib/test/test_gc.py
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@ -732,6 +732,9 @@ class GCTests(unittest.TestCase):
self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
b"shutdown; use", stderr)
self.assertNotIn(b"<X 'first'>", stderr)
one_line_re = b"gc: uncollectable <X 0x[0-9A-Fa-f]+>"
expected_re = one_line_re + b"\r?\n" + one_line_re
self.assertNotRegex(stderr, expected_re)
# With DEBUG_UNCOLLECTABLE, the garbage list gets printed
stderr = run_command(code % "gc.DEBUG_UNCOLLECTABLE")
self.assertIn(b"ResourceWarning: gc: 2 uncollectable objects at "
@ -739,6 +742,8 @@ class GCTests(unittest.TestCase):
self.assertTrue(
(b"[<X 'first'>, <X 'second'>]" in stderr) or
(b"[<X 'second'>, <X 'first'>]" in stderr), stderr)
# we expect two lines with uncollectable objects
self.assertRegex(stderr, expected_re)
# With DEBUG_SAVEALL, no additional message should get printed
# (because gc.garbage also contains normally reclaimable cyclic
# references, and its elements get printed at runtime anyway).