From 12cf076118570eebbff08c6b3090e0d4798447a1 Mon Sep 17 00:00:00 2001 From: cyfraeviolae Date: Wed, 3 Apr 2024 03:17:55 -0400 Subject: no venv --- .../site-packages/greenlet/tests/test_gc.py | 86 ---------------------- 1 file changed, 86 deletions(-) delete mode 100644 venv/lib/python3.11/site-packages/greenlet/tests/test_gc.py (limited to 'venv/lib/python3.11/site-packages/greenlet/tests/test_gc.py') diff --git a/venv/lib/python3.11/site-packages/greenlet/tests/test_gc.py b/venv/lib/python3.11/site-packages/greenlet/tests/test_gc.py deleted file mode 100644 index 994addb..0000000 --- a/venv/lib/python3.11/site-packages/greenlet/tests/test_gc.py +++ /dev/null @@ -1,86 +0,0 @@ -import gc - -import weakref - -import greenlet - - -from . import TestCase -from .leakcheck import fails_leakcheck -# These only work with greenlet gc support -# which is no longer optional. -assert greenlet.GREENLET_USE_GC - -class GCTests(TestCase): - def test_dead_circular_ref(self): - o = weakref.ref(greenlet.greenlet(greenlet.getcurrent).switch()) - gc.collect() - if o() is not None: - import sys - print("O IS NOT NONE.", sys.getrefcount(o())) - self.assertIsNone(o()) - self.assertFalse(gc.garbage, gc.garbage) - - def test_circular_greenlet(self): - class circular_greenlet(greenlet.greenlet): - self = None - o = circular_greenlet() - o.self = o - o = weakref.ref(o) - gc.collect() - self.assertIsNone(o()) - self.assertFalse(gc.garbage, gc.garbage) - - def test_inactive_ref(self): - class inactive_greenlet(greenlet.greenlet): - def __init__(self): - greenlet.greenlet.__init__(self, run=self.run) - - def run(self): - pass - o = inactive_greenlet() - o = weakref.ref(o) - gc.collect() - self.assertIsNone(o()) - self.assertFalse(gc.garbage, gc.garbage) - - @fails_leakcheck - def test_finalizer_crash(self): - # This test is designed to crash when active greenlets - # are made garbage collectable, until the underlying - # problem is resolved. How does it work: - # - order of object creation is important - # - array is created first, so it is moved to unreachable first - # - we create a cycle between a greenlet and this array - # - we create an object that participates in gc, is only - # referenced by a greenlet, and would corrupt gc lists - # on destruction, the easiest is to use an object with - # a finalizer - # - because array is the first object in unreachable it is - # cleared first, which causes all references to greenlet - # to disappear and causes greenlet to be destroyed, but since - # it is still live it causes a switch during gc, which causes - # an object with finalizer to be destroyed, which causes stack - # corruption and then a crash - - class object_with_finalizer(object): - def __del__(self): - pass - array = [] - parent = greenlet.getcurrent() - def greenlet_body(): - greenlet.getcurrent().object = object_with_finalizer() - try: - parent.switch() - except greenlet.GreenletExit: - print("Got greenlet exit!") - finally: - del greenlet.getcurrent().object - g = greenlet.greenlet(greenlet_body) - g.array = array - array.append(g) - g.switch() - del array - del g - greenlet.getcurrent() - gc.collect() -- cgit v1.2.3