Don't let test__refcount_core be a failing test on PyPy. Fixes #390.

changelog.rst

@@ -7,7 +7,9 @@ Changelog
 Unreleased
 ----------
 
-- Add support for Python 3.3 and 3.4.
+- Add support for Python 3.3 and 3.4. Many people have contributed to
+  this effort, including but not limited to Fantix King, hashstat,
+  Elizabeth Myers, jander, Luke Woydziak, and others.
 - Add support for PyPy.
 - Drop support for Python 2.5. Python 2.5 users can continue to use
   gevent 1.0.x.

greentest/test__refcount_core.py

@@ -10,4 +10,13 @@ assert weakref.ref(Dummy())() is None
 
 from gevent import socket
 
-assert weakref.ref(socket.socket())() is None
+try:
+    assert weakref.ref(socket.socket())() is None
+except AssertionError:
+    import sys
+    if hasattr(sys, 'pypy_version_info'):
+        # PyPy uses a non refcounted GC which may defer
+        # the collection of the weakref, unlike CPython
+        pass
+    else:
+        raise

known_failures.py

@@ -56,10 +56,6 @@ if PYPY:
     FAILING_TESTS += [
         # Different in PyPy:
 
-        # PyPy has no refcount
-        # http://pypy.readthedocs.org/en/latest/cpython_differences.html#differences-related-to-garbage-collection-strategies
-        'test__refcount_core.py',
-
         # Not implemented:
 
         # ---