Allow time to propagate (PyPy).

src/gevent/tests/test__refcount.py

@@ -142,8 +142,14 @@ class Test(greentest.TestCase):
             client = Client(server.server_port)
             start_new_thread(client.make_request)
 
-        # Wait until we do our business
-        while server.socket is not None:
+        # Wait until we do our business; we will always close
+        # the server; We may also close the client.
+        # On PyPy, we may not actually see the changes they write to
+        # their dicts immediately.
+        for obj in server, client:
+            if obj is None:
+                continue
+            while obj.socket is not None:
                 sleep(0.01)
 
         # If we have a client, then we should have data
@@ -153,7 +159,6 @@ class Test(greentest.TestCase):
 
         return wref_to_hidden_server_socket
 
-
     def run_and_check(self, run_client):
         wref_to_hidden_server_socket = self.run_interaction(run_client=run_client)
         greentest.gc_collect_if_needed()
@@ -170,7 +175,6 @@ class Test(greentest.TestCase):
         self.run_and_check(True)
         self.run_and_check(True)
 
-
     def test_timeout_exit(self):
         self.run_and_check(False)
         self.run_and_check(False)