Test the initial settings we send.

Author: Lukasa

test/test_integration.py

@@ -10,6 +10,7 @@
 import threading
 import hyper
 from hyper import HTTP20Connection
+from hyper.http20.frame import Frame, SettingsFrame
 from server import SocketLevelTest
 
 # Turn off certificate verification for the tests.
@@ -46,3 +47,40 @@ def socket_handler(listener):
         assert data[0] == b'PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n'
 
         self.tear_down()
+
+    def test_initial_settings(self):
+        self.set_up()
+
+        # Confirm that we send the connection upgrade string and the initial
+        # SettingsFrame.
+        data = []
+        send_event = threading.Event()
+
+        def socket_handler(listener):
+            sock = listener.accept()[0]
+
+            # We should get two packets: one connection header string, one
+            # SettingsFrame.
+            first = sock.recv(65535)
+            second = sock.recv(65535)
+            data.append(first)
+            data.append(second)
+
+            send_event.set()
+            sock.close()
+
+        self._start_server(socket_handler)
+        conn = HTTP20Connection(self.host, self.port)
+        conn.connect()
+        send_event.wait()
+
+        # Get the second chunk of data and decode it into a frame.
+        data = data[1]
+        f, length = Frame.parse_frame_header(data[:8])
+        f.parse_body(data[8:])
+
+        assert isinstance(f, SettingsFrame)
+        assert f.stream_id == 0
+        assert f.settings == {SettingsFrame.ENABLE_PUSH: 0}
+
+        self.tear_down()