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[3.14] gh-140358: Bring back elapsed time and unreachable count to gc debug output (GH-140359) (#140405)

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Co-authored-by: Pål Grønås Drange <paal.drange+pgdr@gmail.com>
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Miss Islington (bot) 2025-10-27 14:29:43 +01:00 • committed by GitHub
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commit c1bfd4cb9c
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26
Lib/test/test_gc.py
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@ -776,6 +776,32 @@ def __del__(self):
rc, out, err = assert_python_ok('-c', code)
self.assertEqual(out.strip(), b'__del__ called')
@unittest.skipIf(Py_GIL_DISABLED, "requires GC generations or increments")
def test_gc_debug_stats(self):
# Checks that debug information is printed to stderr
# when DEBUG_STATS is set.
code = """if 1:
import gc
gc.set_debug(%s)
gc.collect()
"""
_, _, err = assert_python_ok("-c", code % "gc.DEBUG_STATS")
self.assertRegex(err, b"gc: collecting generation [0-9]+")
self.assertRegex(
err,
b"gc: objects in each generation: [0-9]+ [0-9]+ [0-9]+",
)
self.assertRegex(
err, b"gc: objects in permanent generation: [0-9]+"
)
self.assertRegex(
err,
b"gc: done, .* unreachable, .* uncollectable, .* elapsed",
)
_, _, err = assert_python_ok("-c", code % "0")
self.assertNotIn(b"elapsed", err)
def test_global_del_SystemExit(self):
code = """if 1:
class ClassWithDel: