libnm/tests: fix handling ByteArray in test-networkmanager-service.py for Python 3

In Python 3, dbus.ByteArray() must be created using a byte string,
while strings obtained via DBUS are unicode strings.

This was wrong in WifiAp.__get_props() which broke the test
test_wifi_ap_added_removed().

    File "/usr/lib/python3.3/site-packages/dbus/service.py", line 707, in _message_cb
      retval = candidate_method(self, *args, **keywords)
    File "./NetworkManager/tools/test-networkmanager-service.py", line 102, in GetAll
      return self._get_dbus_properties(iface)
    File "./NetworkManager/tools/test-networkmanager-service.py", line 96, in _get_dbus_properties
      return self.__dbus_ifaces[iface]()
    File "./NetworkManager/tools/test-networkmanager-service.py", line 315, in __get_props
      props[PP_SSID] = dbus.ByteArray(self.ssid)
    TypeError: string argument without an encoding

https://bugzilla.gnome.org/show_bug.cgi?id=739448

diff --git a/tools/test-networkmanager-service.py b/tools/test-networkmanager-service.py
index 5645338..32ef05b 100755 (executable)
--- a/tools/test-networkmanager-service.py
+++ b/tools/test-networkmanager-service.py
@@ -312,7 +312,7 @@ class WifiAp(ExportedObj):
         props[PP_FLAGS] = dbus.UInt32(self.flags)
         props[PP_WPA_FLAGS] = dbus.UInt32(self.wpaf)
         props[PP_RSN_FLAGS] = dbus.UInt32(self.rsnf)
-        props[PP_SSID] = dbus.ByteArray(self.ssid)
+        props[PP_SSID] = dbus.ByteArray(self.ssid.encode('utf-8'))
         props[PP_FREQUENCY] = dbus.UInt32(self.freq)
         props[PP_HW_ADDRESS] = self.bssid
         props[PP_MODE] = dbus.UInt32(2)  # NM_802_11_MODE_INFRA