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# -*- Mode: Python; py-indent-offset: 4 -*-
# vim: tabstop=4 shiftwidth=4 expandtab
import unittest
from gi.repository import GLib
from gi.repository import Gio
try:
Gio.bus_get_sync(Gio.BusType.SESSION, None)
except GLib.Error:
has_dbus = False
else:
has_dbus = True
class TestDBusNodeInfo(unittest.TestCase):
def test_new_for_xml(self):
info = Gio.DBusNodeInfo.new_for_xml("""
<!DOCTYPE node PUBLIC '-//freedesktop//DTD D-BUS Object Introspection 1.0//EN'
'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd'>
<node>
<interface name='org.freedesktop.DBus.Introspectable'>
<method name='Introspect'>
<arg name='data' direction='out' type='s'/>
</method>
</interface>
</node>
""")
interfaces = info.interfaces
del info
assert len(interfaces) == 1
assert interfaces[0].name == "org.freedesktop.DBus.Introspectable"
methods = interfaces[0].methods
del interfaces
assert len(methods) == 1
assert methods[0].name == "Introspect"
out_args = methods[0].out_args
assert len(out_args)
del methods
assert out_args[0].name == "data"
@unittest.skipUnless(has_dbus, "no dbus running")
class TestGDBusClient(unittest.TestCase):
def setUp(self):
self.bus = Gio.bus_get_sync(Gio.BusType.SESSION, None)
self.dbus_proxy = Gio.DBusProxy.new_sync(self.bus,
Gio.DBusProxyFlags.NONE,
None,
'org.freedesktop.DBus',
'/org/freedesktop/DBus',
'org.freedesktop.DBus',
None)
def test_native_calls_sync(self):
result = self.dbus_proxy.call_sync('ListNames', None,
Gio.DBusCallFlags.NO_AUTO_START,
500, None)
self.assertTrue(isinstance(result, GLib.Variant))
result = result.unpack()[0] # result is always a tuple
self.assertTrue(len(result) > 1)
self.assertTrue('org.freedesktop.DBus' in result)
result = self.dbus_proxy.call_sync('GetNameOwner',
GLib.Variant('(s)', ('org.freedesktop.DBus',)),
Gio.DBusCallFlags.NO_AUTO_START, 500, None)
self.assertTrue(isinstance(result, GLib.Variant))
self.assertEqual(type(result.unpack()[0]), type(''))
def test_native_calls_sync_errors(self):
# error case: invalid argument types
try:
self.dbus_proxy.call_sync('GetConnectionUnixProcessID', None,
Gio.DBusCallFlags.NO_AUTO_START, 500, None)
self.fail('call with invalid arguments should raise an exception')
except Exception as e:
self.assertTrue('InvalidArgs' in str(e))
# error case: invalid argument
try:
self.dbus_proxy.call_sync('GetConnectionUnixProcessID',
GLib.Variant('(s)', (' unknown',)),
Gio.DBusCallFlags.NO_AUTO_START, 500, None)
self.fail('call with invalid arguments should raise an exception')
except Exception as e:
self.assertTrue('NameHasNoOwner' in str(e))
# error case: unknown method
try:
self.dbus_proxy.call_sync('UnknownMethod', None,
Gio.DBusCallFlags.NO_AUTO_START, 500, None)
self.fail('call for unknown method should raise an exception')
except Exception as e:
self.assertTrue('UnknownMethod' in str(e))
def test_native_calls_async(self):
def call_done(obj, result, user_data):
try:
user_data['result'] = obj.call_finish(result)
finally:
user_data['main_loop'].quit()
main_loop = GLib.MainLoop()
data = {'main_loop': main_loop}
self.dbus_proxy.call('ListNames', None,
Gio.DBusCallFlags.NO_AUTO_START, 500, None,
call_done, data)
main_loop.run()
self.assertTrue(isinstance(data['result'], GLib.Variant))
result = data['result'].unpack()[0] # result is always a tuple
self.assertTrue(len(result) > 1)
self.assertTrue('org.freedesktop.DBus' in result)
def test_native_calls_async_errors(self):
def call_done(obj, result, user_data):
try:
obj.call_finish(result)
self.fail('call_finish() for unknown method should raise an exception')
except Exception as e:
self.assertTrue('UnknownMethod' in str(e))
finally:
user_data['main_loop'].quit()
main_loop = GLib.MainLoop()
data = {'main_loop': main_loop}
self.dbus_proxy.call('UnknownMethod', None,
Gio.DBusCallFlags.NO_AUTO_START, 500, None,
call_done, data)
main_loop.run()
def test_python_calls_sync(self):
# single value return tuples get unboxed to the one element
result = self.dbus_proxy.ListNames('()')
self.assertTrue(isinstance(result, list))
self.assertTrue(len(result) > 1)
self.assertTrue('org.freedesktop.DBus' in result)
result = self.dbus_proxy.GetNameOwner('(s)', 'org.freedesktop.DBus')
self.assertEqual(type(result), type(''))
# empty return tuples get unboxed to None
self.assertEqual(self.dbus_proxy.ReloadConfig('()'), None)
# multiple return values remain a tuple; unfortunately D-BUS itself
# does not have any method returning multiple results, so try talking
# to notification-daemon (and don't fail the test if it does not exist)
try:
nd = Gio.DBusProxy.new_sync(self.bus,
Gio.DBusProxyFlags.NONE, None,
'org.freedesktop.Notifications',
'/org/freedesktop/Notifications',
'org.freedesktop.Notifications',
None)
result = nd.GetServerInformation('()')
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 4)
for i in result:
self.assertEqual(type(i), type(''))
except Exception as e:
if 'Error.ServiceUnknown' not in str(e):
raise
# test keyword argument; timeout=0 will fail immediately
try:
self.dbus_proxy.GetConnectionUnixProcessID('(s)', '1', timeout=0)
self.fail('call with timeout=0 should raise an exception')
except Exception as e:
# FIXME: this is not very precise, but in some environments we
# do not always get an actual timeout
self.assertTrue(isinstance(e, GLib.GError), str(e))
def test_python_calls_sync_noargs(self):
# methods without arguments don't need an explicit signature
result = self.dbus_proxy.ListNames()
self.assertTrue(isinstance(result, list))
self.assertTrue(len(result) > 1)
self.assertTrue('org.freedesktop.DBus' in result)
def test_python_calls_sync_errors(self):
# error case: invalid argument types
try:
self.dbus_proxy.GetConnectionUnixProcessID('()')
self.fail('call with invalid arguments should raise an exception')
except Exception as e:
self.assertTrue('InvalidArgs' in str(e), str(e))
try:
self.dbus_proxy.GetConnectionUnixProcessID(None, 'foo')
self.fail('call with None signature should raise an exception')
except TypeError as e:
self.assertTrue('signature' in str(e), str(e))
def test_python_calls_async(self):
def call_done(obj, result, user_data):
user_data['result'] = result
user_data['main_loop'].quit()
main_loop = GLib.MainLoop()
data = {'main_loop': main_loop}
self.dbus_proxy.ListNames('()', result_handler=call_done, user_data=data)
main_loop.run()
result = data['result']
self.assertEqual(type(result), type([]))
self.assertTrue(len(result) > 1)
self.assertTrue('org.freedesktop.DBus' in result)
def test_python_calls_async_error_result(self):
# when only specifying a result handler, this will get the error
def call_done(obj, result, user_data):
user_data['result'] = result
user_data['main_loop'].quit()
main_loop = GLib.MainLoop()
data = {'main_loop': main_loop}
self.dbus_proxy.ListNames('(s)', 'invalid_argument',
result_handler=call_done, user_data=data)
main_loop.run()
self.assertTrue(isinstance(data['result'], Exception))
self.assertTrue('InvalidArgs' in str(data['result']), str(data['result']))
def test_python_calls_async_error(self):
# when specifying an explicit error handler, this will get the error
def call_done(obj, result, user_data):
user_data['main_loop'].quit()
self.fail('result handler should not be called')
def call_error(obj, error, user_data):
user_data['error'] = error
user_data['main_loop'].quit()
main_loop = GLib.MainLoop()
data = {'main_loop': main_loop}
self.dbus_proxy.ListNames('(s)', 'invalid_argument',
result_handler=call_done,
error_handler=call_error,
user_data=data)
main_loop.run()
self.assertTrue(isinstance(data['error'], Exception))
self.assertTrue('InvalidArgs' in str(data['error']), str(data['error']))
def test_instantiate_custom_proxy(self):
class SomeProxy(Gio.DBusProxy):
def __init__(self):
Gio.DBusProxy.__init__(self)
SomeProxy()
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