gstreamer/subprojects/gst-python/testsuite/old/test_interface.py

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# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4
#
# gst-python - Python bindings for GStreamer
# Copyright (C) 2002 David I. Lehn
# Copyright (C) 2004 Johan Dahlin
# Copyright (C) 2005 Edward Hervey
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from common import gst, unittest, TestCase
import gobject
def find_mixer_element():
""" Searches for an element implementing the mixer interface """
allmix = [x for x in gst.registry_get_default().get_feature_list(gst.ElementFactory)
if x.has_interface("GstMixer") and x.has_interface("GstPropertyProbe")]
if allmix == []:
return None
return allmix[0]
class Availability(TestCase):
def testXOverlay(self):
assert hasattr(gst.interfaces, 'XOverlay')
assert issubclass(gst.interfaces.XOverlay, gobject.GInterface)
def testMixer(self):
assert hasattr(gst.interfaces, 'Mixer')
assert issubclass(gst.interfaces.Mixer, gobject.GInterface)
class FunctionCall(TestCase):
def FIXME_testXOverlay(self):
# obviously a testsuite is not allowed to instantiate this
# since it needs a running X or will fail. find some way to
# deal with that.
element = gst.element_factory_make('xvimagesink')
assert isinstance(element, gst.Element)
assert isinstance(element, gst.interfaces.XOverlay)
element.set_xwindow_id(0L)
class MixerTest(TestCase):
def setUp(self):
TestCase.setUp(self)
amix = find_mixer_element()
if amix:
self.mixer = amix.create()
else:
self.mixer = None
def tearDown(self):
del self.mixer
TestCase.tearDown(self)
def testGetProperty(self):
if self.mixer == None:
return
self.failUnless(self.mixer.probe_get_property('device'))
self.assertRaises(ValueError,
self.mixer.probe_get_property, 'non-existent')
def testGetProperties(self):
if self.mixer == None:
return
properties = self.mixer.probe_get_properties()
self.failUnless(properties)
self.assertEqual(type(properties), list)
prop = properties[0]
self.assertEqual(prop.name, 'device')
self.assertEqual(prop.value_type, gobject.TYPE_STRING)
def testGetValuesName(self):
if self.mixer == None:
return
values = self.mixer.probe_get_values_name('device')
self.assertEqual(type(values), list)
if __name__ == "__main__":
unittest.main()