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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from common import gst, unittest, TestCase
import sys
# since I can't subclass gst.Element for some reason, I use a bin here
# it don't matter to Jesus
class TestElement(gst.Bin):
def break_it_down(self):
self.debug('Hammer Time')
class ElementTest(TestCase):
name = 'fakesink'
alias = 'sink'
def testGoodConstructor(self):
element = gst.element_factory_make(self.name, self.alias)
assert element is not None, 'element is None'
assert isinstance(element, gst.Element)
assert element.get_name() == self.alias
## FIXME : Make a new test for state changes, using bus signals
## class FakeSinkTest(ElementTest):
## FAKESINK_STATE_ERROR_NONE = "0"
## FAKESINK_STATE_ERROR_NULL_READY, = "1"
## FAKESINK_STATE_ERROR_READY_PAUSED, = "2"
## FAKESINK_STATE_ERROR_PAUSED_PLAYING = "3"
## FAKESINK_STATE_ERROR_PLAYING_PAUSED = "4"
## FAKESINK_STATE_ERROR_PAUSED_READY = "5"
## FAKESINK_STATE_ERROR_READY_NULL = "6"
## name = 'fakesink'
## alias = 'sink'
## def setUp(self):
## ElementTest.setUp(self)
## self.element = gst.element_factory_make('fakesink', 'sink')
## def tearDown(self):
## self.element.set_state(gst.STATE_NULL)
## del self.element
## ElementTest.tearDown(self)
## def checkError(self, old_state, state, name):
## assert self.element.get_state() == gst.STATE_NULL
## assert self.element.set_state(old_state)
## assert self.element.get_state() == old_state
## self.element.set_property('state-error', name)
## self.error = False
## def error_cb(element, source, gerror, debug):
## assert isinstance(element, gst.Element)
## assert element == self.element
## assert isinstance(source, gst.Element)
## assert source == self.element
## assert isinstance(gerror, gst.GError)
## self.error = True
## self.element.connect('error', error_cb)
## self.element.set_state (state)
## assert self.error, 'error not set'
## #assert error_message.find('ERROR') != -1
## self.element.get_state() == old_state, 'state changed'
## def testStateErrorNullReady(self):
## self.checkError(gst.STATE_NULL, gst.STATE_READY,
## self.FAKESINK_STATE_ERROR_NULL_READY)
## def testStateErrorReadyPaused(self):
## self.checkError(gst.STATE_READY, gst.STATE_PAUSED,
## self.FAKESINK_STATE_ERROR_READY_PAUSED)
## def testStateErrorPausedPlaying(self):
## self.checkError(gst.STATE_PAUSED, gst.STATE_PLAYING,
## self.FAKESINK_STATE_ERROR_PAUSED_PLAYING)
## def testStateErrorPlayingPaused(self):
## self.checkError(gst.STATE_PLAYING, gst.STATE_PAUSED,
## self.FAKESINK_STATE_ERROR_PLAYING_PAUSED)
## def testStateErrorPausedReady(self):
## self.checkError(gst.STATE_PAUSED, gst.STATE_READY,
## self.FAKESINK_STATE_ERROR_PAUSED_READY)
## def testStateErrorReadyNull(self):
## self.checkError(gst.STATE_READY, gst.STATE_NULL,
## self.FAKESINK_STATE_ERROR_READY_NULL)
## def checkStateChange(self, old, new):
## def state_change_cb(element, old_s, new_s):
## assert isinstance(element, gst.Element)
## assert element == self.element
## assert old_s == old
## assert new_s == new
## assert self.element.set_state(old)
## assert self.element.get_state(0.0)[1] == old
## # FIXME: replace with messages
## # self.element.connect('state-change', state_change_cb)
## assert self.element.set_state(new)
## assert self.element.get_state(0.0)[1] == new
## def testStateChangeNullReady(self):
## self.checkStateChange(gst.STATE_NULL, gst.STATE_READY)
## def testStateChangeReadyPaused(self):
## self.checkStateChange(gst.STATE_READY, gst.STATE_PAUSED)
## def testStateChangePausedPlaying(self):
## self.checkStateChange(gst.STATE_PAUSED, gst.STATE_PLAYING)
## def testStateChangePlayingPaused(self):
## self.checkStateChange(gst.STATE_PLAYING, gst.STATE_PAUSED)
## def testStateChangePausedReady(self):
## self.checkStateChange(gst.STATE_PAUSED, gst.STATE_READY)
## def testStateChangeReadyNull(self):
## self.checkStateChange(gst.STATE_READY, gst.STATE_NULL)
class NonExistentTest(ElementTest):
name = 'this-element-does-not-exist'
alias = 'no-alias'
testGoodConstructor = lambda s: None
testGoodConstructor2 = lambda s: None
class FileSrcTest(ElementTest):
name = 'filesrc'
alias = 'source'
class FileSinkTest(ElementTest):
name = 'filesink'
alias = 'sink'
class ElementName(TestCase):
def testElementStateGetName(self):
get_name = gst.element_state_get_name
for state in ('NULL',
'READY',
'PLAYING',
'PAUSED'):
name = 'STATE_' + state
assert hasattr(gst, name)
attr = getattr(gst, name)
assert get_name(attr) == state
assert get_name(gst.STATE_VOID_PENDING) == 'VOID_PENDING'
assert get_name(-1) == 'UNKNOWN!(-1)'
self.assertRaises(TypeError, get_name, '')
class QueryTest(TestCase):
def setUp(self):
TestCase.setUp(self)
self.pipeline = gst.parse_launch('fakesrc name=source ! fakesink')
self.assertEquals(self.pipeline.__gstrefcount__, 1)
self.element = self.pipeline.get_by_name('source')
self.assertEquals(self.pipeline.__gstrefcount__, 1)
self.assertEquals(self.element.__gstrefcount__, 2)
self.assertEquals(sys.getrefcount(self.element), 3)
def tearDown(self):
del self.pipeline
del self.element
TestCase.tearDown(self)
def testQuery(self):
gst.debug('querying fakesrc in FORMAT_BYTES')
res = self.element.query_position(gst.FORMAT_BYTES)
self.assertEquals(self.pipeline.__gstrefcount__, 1)
self.assertEquals(sys.getrefcount(self.pipeline), 3)
self.assertEquals(self.element.__gstrefcount__, 2)
self.assertEquals(sys.getrefcount(self.element), 3)
assert res
assert res[0] == 0
self.assertRaises(gst.QueryError, self.element.query_position,
gst.FORMAT_TIME)
self.gccollect()
class QueueTest(TestCase):
def testConstruct(self):
queue = gst.element_factory_make('queue')
assert queue.get_name() == 'queue0'
self.assertEquals(queue.__gstrefcount__, 1)
class DebugTest(TestCase):
def testDebug(self):
e = gst.element_factory_make('fakesrc')
e.error('I am an error string')
e.warning('I am a warning string')
e.info('I am an info string')
e.debug('I am a debug string')
e.log('I am a log string')
e.debug('I am a formatted %s %s' % ('log', 'string'))
def testElementDebug(self):
e = TestElement("testelement")
e.set_property("name", "testelement")
e.break_it_down()
class LinkTest(TestCase):
def testLinkNoPads(self):
src = gst.Bin()
sink = gst.Bin()
self.assertRaises(gst.LinkError, src.link, sink)
def testLink(self):
src = gst.element_factory_make('fakesrc')
sink = gst.element_factory_make('fakesink')
self.failUnless(src.link(sink))
# FIXME: this unlink leaks, no idea why
# src.unlink(sink)
# print src.__gstrefcount__
def testLinkPads(self):
src = gst.element_factory_make('fakesrc')
sink = gst.element_factory_make('fakesink')
# print src.__gstrefcount__
self.failUnless(src.link_pads("src", sink, "sink"))
src.unlink_pads("src", sink, "sink")
def testLinkFiltered(self):
# a filtered link uses capsfilter and thus needs a bin
bin = gst.Bin()
src = gst.element_factory_make('fakesrc')
sink = gst.element_factory_make('fakesink')
bin.add(src, sink)
caps = gst.caps_from_string("audio/x-raw-int")
self.failUnless(src.link(sink, caps))
# DANGER WILL. src is not actually connected to sink, since
# there's a capsfilter in the way. What a leaky abstraction.
# FIXME
# src.unlink(sink)
# instead, mess with pads directly
pad = src.get_pad('src')
pad.unlink(pad.get_peer())
pad = sink.get_pad('sink')
pad.get_peer().unlink(pad)
if __name__ == "__main__":
unittest.main()
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