Added _recv_cb test

Author: irvind

test/test_hyper.py

@@ -509,6 +509,24 @@ def test_that_using_proxy_keeps_http_headers_intact(self):
             (':path', '/'),
         ]
 
+    def test_recv_cb_n_times(self):
+        sock = DummySocket()
+        sock.can_read = True
+
+        c = HTTP20Connection('www.google.com')
+        c._sock = sock
+
+        mutable = {'counter': 0}
+
+        def consume_single_frame():
+            mutable['counter'] += 1
+            
+        c._consume_single_frame = consume_single_frame
+        c._recv_cb()
+
+        assert mutable['counter'] == 10
+
+
 class TestServerPush(object):
     def setup_method(self, method):
         self.frames = []