test stream resets in push promise

test/test_protocol_http2.py

@@ -235,6 +235,9 @@ class TestPushPromise(_Http2TestBase, _Http2ServerBase):
 
             h2_conn.send_headers(2, [(':status', '202')])
             h2_conn.send_headers(4, [(':status', '204')])
+            wfile.write(h2_conn.data_to_send())
+            wfile.flush()
+
             h2_conn.send_data(1, b'regular_stream')
             h2_conn.send_data(2, b'pushed_stream_foo')
             h2_conn.send_data(4, b'pushed_stream_bar')
@@ -280,3 +283,37 @@ class TestPushPromise(_Http2TestBase, _Http2ServerBase):
         assert b'regular_stream' in bodies
         assert b'pushed_stream_foo' in bodies
         assert b'pushed_stream_bar' in bodies
+
+    def test_push_promise_reset(self):
+        client, h2_conn = self._setup_connection()
+
+        self._send_request(client.wfile, h2_conn, stream_id=1, headers=[
+            (':authority', "127.0.0.1:%s" % self.server.server.address.port),
+            (':method', 'GET'),
+            (':scheme', 'https'),
+            (':path', '/'),
+            ('foo', 'bar')
+        ])
+
+        done = False
+        while not done:
+            try:
+                events = h2_conn.receive_data(utils.http2_read_frame(client.rfile))
+            except:
+                break
+            client.wfile.write(h2_conn.data_to_send())
+            client.wfile.flush()
+
+            for event in events:
+                if isinstance(event, h2.events.StreamEnded) and event.stream_id == 1:
+                    done = True
+                elif isinstance(event, h2.events.PushedStreamReceived):
+                    h2_conn.reset_stream(event.pushed_stream_id)
+                    client.wfile.write(h2_conn.data_to_send())
+                    client.wfile.flush()
+
+        bodies = [flow.response.body for flow in self.master.state.flows]
+        assert len(bodies) == 3
+        assert b'regular_stream' in bodies
+        assert b'pushed_stream_foo' in bodies
+        assert b'pushed_stream_bar' in bodies