[pypy-svn] r54480 - pypy/branch/gc-tweak/pypy/rpython/memory/test

[arigo at codespeak.net]

Author: arigo
Date: Tue May  6 16:53:52 2008
New Revision: 54480

Modified:
   pypy/branch/gc-tweak/pypy/rpython/memory/test/test_transformed_gc.py
Log:
Another passing test...


Modified: pypy/branch/gc-tweak/pypy/rpython/memory/test/test_transformed_gc.py
==============================================================================
--- pypy/branch/gc-tweak/pypy/rpython/memory/test/test_transformed_gc.py	(original)
+++ pypy/branch/gc-tweak/pypy/rpython/memory/test/test_transformed_gc.py	Tue May  6 16:53:52 2008
@@ -919,3 +919,25 @@
                          'nursery_size': 128,
                          'large_object': 32}
             root_stack_depth = 200
+
+    def test_ref_from_rawmalloced_to_regular(self):
+        import gc
+        S = lltype.GcStruct('S', ('x', lltype.Signed))
+        A = lltype.GcStruct('A', ('p', lltype.Ptr(S)),
+                                 ('a', lltype.Array(lltype.Char)))
+        def setup(j):
+            p = lltype.malloc(S)
+            p.x = j*2
+            lst = lltype.malloc(A, j)
+            # the following line generates a write_barrier call at the moment,
+            # which is important because the 'lst' can be allocated directly
+            # in generation 2.  This can only occur with varsized mallocs.
+            lst.p = p
+            return lst
+        def f(i, j):
+            lst = setup(j)
+            gc.collect()
+            return lst.p.x
+        run = self.runner(f, nbargs=2)
+        res = run([100, 100])
+        assert res == 200