Author: Stefan Beyer <[email protected]>
Branch: cpyext-gc-trialdeletion
Changeset: r92287:74fa1f758dc8
Date: 2017-08-31 14:45 +0200
http://bitbucket.org/pypy/pypy/changeset/74fa1f758dc8/
Log: Added more tests
diff --git a/rpython/memory/gc/test/test_rawrefcount.py
b/rpython/memory/gc/test/test_rawrefcount.py
--- a/rpython/memory/gc/test/test_rawrefcount.py
+++ b/rpython/memory/gc/test/test_rawrefcount.py
@@ -441,3 +441,47 @@
assert r1.base.c_ob_refcnt & REFCNT_MASK == 2
assert r2.base.c_ob_refcnt & REFCNT_MASK == 1
+ def test_multiple_cycles_partial_free(self):
+ self.gc.rawrefcount_init(lambda: self.trigger.append(1))
+ r1 = self._rawrefcount_cycle_obj()
+ r2 = self._rawrefcount_cycle_obj()
+ r3 = self._rawrefcount_cycle_obj()
+ r4 = self._rawrefcount_cycle_obj()
+ r5 = self._rawrefcount_cycle_obj()
+ r1.next = r2
+ r2.next = r3
+ r3.next = r1
+ r2.prev = r5
+ r5.next = r4
+ r4.next = r5
+ r5.base.c_ob_refcnt += 1
+ r4.base.c_ob_refcnt += 1
+ self._rawrefcount_buffer_obj(r1)
+ self.gc.rrc_collect_cycles()
+ assert r1.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r2.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r3.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r4.base.c_ob_refcnt & REFCNT_MASK == 2
+ assert r5.base.c_ob_refcnt & REFCNT_MASK == 1
+
+ def test_multiple_cycles_all_free(self):
+ self.gc.rawrefcount_init(lambda: self.trigger.append(1))
+ r1 = self._rawrefcount_cycle_obj()
+ r2 = self._rawrefcount_cycle_obj()
+ r3 = self._rawrefcount_cycle_obj()
+ r4 = self._rawrefcount_cycle_obj()
+ r5 = self._rawrefcount_cycle_obj()
+ r1.next = r2
+ r2.next = r3
+ r3.next = r1
+ r2.prev = r5
+ r5.next = r4
+ r4.next = r5
+ r5.base.c_ob_refcnt += 1
+ self._rawrefcount_buffer_obj(r1)
+ self.gc.rrc_collect_cycles()
+ assert r1.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r2.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r3.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r4.base.c_ob_refcnt & REFCNT_MASK == 0
+ assert r5.base.c_ob_refcnt & REFCNT_MASK == 0
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