Add CSI test to power-save (twisted)

tests/twisted/power-save.py

@@ -6,7 +6,7 @@
 
 from gabbletest import exec_test, GoogleXmlStream, make_result_iq, \
     send_error_reply, disconnect_conn, make_presence, sync_stream, elem, \
-    acknowledge_iq
+    acknowledge_iq, XmppAuthenticator, StreamEvent
 from servicetest import call_async, assertEquals, EventPattern, \
     assertContains, sync_dbus
 import ns
@@ -208,8 +208,52 @@ def test_disconnect(q, bus, conn, stream):
 
     disconnect_conn(q, conn, stream)
 
+NS_CSI="urn:xmpp:csi:0"
+class CsiAuthenticator(XmppAuthenticator):
+    def __init__(self):
+        super().__init__('test', 'pass')
+
+    def streamIQ(self):
+        super().streamIQ()
+        self.xmlstream.addObserver(f"/active[@xmlns='{NS_CSI}']",
+                lambda x: self.xmlstream.event_func(StreamEvent('stream-active', x, self.xmlstream)))
+        self.xmlstream.addObserver(f"/inactive[@xmlns='{NS_CSI}']",
+                lambda x: self.xmlstream.event_func(StreamEvent('stream-inactive', x, self.xmlstream)))
+
+
+def test_csi(q, bus, conn, stream):
+    assertContains(cs.CONN_IFACE_POWER_SAVING,
+                  conn.Get(cs.CONN, "Interfaces",
+                           dbus_interface=cs.PROPERTIES_IFACE))
+
+    assertEquals (False, conn.Get(cs.CONN_IFACE_POWER_SAVING,
+                                  "PowerSavingActive",
+                                  dbus_interface=cs.PROPERTIES_IFACE))
+
+    call_async(q, conn.PowerSaving, 'SetPowerSaving', True)
+
+    q.expect('stream-inactive')
+
+    q.expect_many(EventPattern('dbus-return', method='SetPowerSaving'),
+                  EventPattern('dbus-signal', signal='PowerSavingChanged',
+                               args=[True]))
+    call_async(q, conn.PowerSaving, 'SetPowerSaving', False)
+
+    q.expect('stream-active')
+
+    q.expect_many(
+        EventPattern('dbus-return', method='SetPowerSaving'),
+        EventPattern('dbus-signal', signal='PowerSavingChanged',
+                     args=[False]))
+
+
 if __name__ == '__main__':
     exec_test(test, protocol=GoogleXmlStream)
     exec_test(test_local_queueing)
     exec_test(test_error, protocol=GoogleXmlStream)
     exec_test(test_disconnect, protocol=GoogleXmlStream)
+
+    # The same powersave engine is used hence only checking
+    # CSI signaling
+    XmppAuthenticator.features[NS_CSI] = 'csi'
+    exec_test(test_csi, authenticator=CsiAuthenticator())