click_element() sometimes fails if list item not visible/created

[Omer Akram]

grab this branch lp:~om26er/ubuntu-system-settings/add_ringtone_test and try to run the below test:

ubuntu_system_settings.tests.test_sound.SoundTestCase.test_ringtone_setting_change_in_backend

The test fails on the nexus 4 because the element goes out of screen due to auto-scroll.

test-log: {{{
13:40:38.061 INFO globals:58 - ************************************************************
13:40:38.061 INFO globals:59 - Starting test ubuntu_system_settings.tests.test_sound.SoundTestCase.test_ringtone_setting_change_in_backend (with touch)
13:40:38.063 WARNING testcase:116 - No tracing available - install the python-autopilot-trace package!
13:40:38.242 WARNING testcase:157 - Process manager backend unavailable, application snapshot support disabled.
13:40:38.243 INFO testcase:339 - Attempting to launch application 'ubuntu-system-settings' with URIs '' via upstart-app-launch
13:41:06.518 ERROR proxies:410 - Introspect error on :1.317:/com/canonical/Autopilot/Introspection: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
13:41:06.524 DEBUG proxies:413 - Executing introspect queue due to error
13:41:31.643 DEBUG dbus:433 - Selecting objects of type MainWindow with attributes: {}
13:41:31.713 DEBUG dbus:433 - Selecting objects of type MainWindow with attributes: {}
13:41:31.743 INFO logging:45 - MainWindow: Open the sound settings page. Arguments (). Keyword arguments: {}.
13:41:31.745 DEBUG dbus:433 - Selecting objects of type EntryComponent with attributes: {'objectName': 'entryComponent-sound'}
13:41:32.056 DEBUG dbus:433 - Selecting objects of any type with attributes: {'objectName': 'systemSettingsPage'}
13:41:32.488 DEBUG _common:45 - Moving to object's globalRect coordinates.
13:41:32.488 DEBUG _uinput:475 - Tapping at: 298,753
13:41:32.591 DEBUG dbus:433 - Selecting objects of type ItemPage with attributes: {'objectName': 'soundPage'}
13:41:36.927 INFO logging:45 - ItemPage: Open the ringtone selector. Arguments (). Keyword arguments: {}.
13:41:36.928 DEBUG dbus:433 - Selecting objects of type SingleValue with attributes: {'objectName': 'ringtoneListItem'}
13:41:38.694 DEBUG _common:45 - Moving to object's globalRect coordinates.
13:41:38.695 DEBUG _uinput:475 - Tapping at: 384,397
13:41:39.747 DEBUG dbus:433 - Selecting objects of type SoundsList with attributes: {}
13:41:39.823 INFO logging:45 - SoundsList: Choose a new ringtone. Arguments ('Celestial',). Keyword arguments: {}.
13:41:39.824 DEBUG dbus:433 - Selecting objects of type QQuickListView with attributes: {'objectName': 'listView'}
13:41:41.415 INFO logging:45 - QQuickListView: Click an element from the list. Arguments ('ringtone-Celestial',). Keyword arguments: {}.
13:41:41.416 DEBUG dbus:433 - Selecting objects of any type with attributes: {'objectName': 'ringtone-Celestial'}
13:41:41.862 INFO logging:45 - QQuickListView: Make the child visible. Arguments (<autopilot.introspection.dbus.OptionSelectorDelegate object at 0xb3a5d390>,). Keyword arguments: {}.
}}}

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntu_system_settings/tests/test_sound.py", line 59, in test_ringtone_setting_change_in_backend
    current_ringtone = sounds_list.choose_ringtone(ringtone)
  File "/usr/lib/python2.7/dist-packages/autopilot/logging.py", line 46, in inner
    return f(instance, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/ubuntu_system_settings/__init__.py", line 212, in choose_ringtone
    list_view.click_element('ringtone-' + name)
  File "/usr/lib/python2.7/dist-packages/autopilot/logging.py", line 46, in inner
    return f(instance, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/ubuntuuitoolkit/_custom_proxy_objects/_qquicklistview.py", line 48, in click_element
    self.swipe_child_into_view(element)
  File "/usr/lib/python2.7/dist-packages/autopilot/logging.py", line 46, in inner
    return f(instance, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/ubuntuuitoolkit/_custom_proxy_objects/_flickable.py", line 100, in swipe_child_into_view
    if not self._is_child_visible(child, containers):
  File "/usr/lib/python2.7/dist-packages/ubuntuuitoolkit/_custom_proxy_objects/_flickable.py", line 70, in _is_child_visible
    object_center = child.globalRect.y + child.globalRect.height // 2
  File "/usr/lib/python2.7/dist-packages/autopilot/introspection/dbus.py", line 520, in __getattr__
    self.refresh_state()
  File "/usr/lib/python2.7/dist-packages/autopilot/introspection/dbus.py", line 474, in refresh_state
    _, new_state = self.get_new_state()
  File "/usr/lib/python2.7/dist-packages/autopilot/introspection/dbus.py", line 564, in get_new_state
    raise StateNotFoundError(self.__class__.__name__, id=self.id)
StateNotFoundError: Object not found with name 'OptionSelectorDelegate' and properties {'id': 53}.

Ran 1 test in 65.959s
FAILED (failures=1)

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubuntu-ui-toolkit-autopilot 0.1.47+14.10.20140619-0ubuntu1
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.14.3-0ubuntu2
Architecture: armhf
Date: Mon Jun 30 13:42:18 2014
InstallationDate: Installed on 2014-06-30 (0 days ago)
InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20140630-020204)
PackageArchitecture: all
SourcePackage: ubuntu-ui-toolkit
UpgradeStatus: No upgrade log present (probably fresh install)

[Cris Dywan (kalikiana)]

Is this still an issue? A specific test case would be nice as the aforementioned branch requires a lot of knowledge of the tests and how the app is built.

[Launchpad Janitor (janitor)]

[Expired for ubuntu-ui-toolkit (Ubuntu) because there has been no activity for 60 days.]