/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos-ctl

  • Committer: teddy at recompile
  • Date: 2020-12-03 20:30:45 UTC
  • Revision ID: teddy@recompile.se-20201203203045-iqd6nq9y5nwalh1x
Minor fix of a test function

In dracut-module/password-agent, the test function
test_send_password_to_socket_EMSGSIZE() (which tests that the
send_password_to_socket() task function aborts properly when getting
EMSGSIZE when writing to the password socket), part of the test code
is supposed to find a message size which definitely does trigger
EMSGSIZE when send()ing to a socket.  Without a "break" in the proper
place, however, the size given is always exactly 1024 bytes too large.

This is very probably not a problem, since a too large message will
still be too large if it is increased by 1024 bytes, and send(2) in
practice checks the size before reading the buffer.  The biggest issue
would be if some version of send(2) would try to look at the last 1024
bytes of the message buffer before checking the message size; this
would then lead to a buffer over-read when running this test function.
(But even then there would be no security implications since the tests
are not run in the normal operation of the program.)

* dracut-module/password-agent.c
  (test_send_password_to_socket_EMSGSIZE): Break out early when ssret
  < 0 and errno == EMSGSIZE; don't allow loop to increase message_size
  again.

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos-ctl
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
2
2
# -*- after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
3
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
 
4
# Mandos Control - Control or query the Mandos server
5
5
#
6
 
# Copyright © 2008-2019 Teddy Hogeborn
7
 
# Copyright © 2008-2019 Björn Påhlsson
 
6
# Copyright © 2008-2020 Teddy Hogeborn
 
7
# Copyright © 2008-2020 Björn Påhlsson
8
8
#
9
9
# This file is part of Mandos.
10
10
#
46
46
import tempfile
47
47
import contextlib
48
48
 
 
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
 
51
    str = unicode
 
52
 
 
53
class gi:
 
54
    """Dummy gi module, for the tests"""
 
55
    class repository:
 
56
        class GLib:
 
57
            class Error(Exception):
 
58
                pass
 
59
dbussy = None
 
60
ravel = None
 
61
dbus_python = None
 
62
pydbus = None
 
63
 
49
64
try:
50
 
    import pydbus
51
 
    import gi
52
 
    dbus_python = None
 
65
    import dbussy
 
66
    import ravel
53
67
except ImportError:
54
 
    import dbus as dbus_python
55
 
    pydbus = None
56
 
    class gi(object):
57
 
        """Dummy gi module, for the tests"""
58
 
        class repository(object):
59
 
            class GLib(object):
60
 
                class Error(Exception):
61
 
                    pass
 
68
    try:
 
69
        import pydbus
 
70
        import gi
 
71
    except ImportError:
 
72
        import dbus as dbus_python
 
73
 
62
74
 
63
75
# Show warnings by default
64
76
if not sys.warnoptions:
72
84
logging.captureWarnings(True)   # Show warnings via the logging system
73
85
 
74
86
if sys.version_info.major == 2:
75
 
    str = unicode
76
87
    import StringIO
77
88
    io.StringIO = StringIO.StringIO
78
89
 
79
90
locale.setlocale(locale.LC_ALL, "")
80
91
 
81
 
version = "1.8.6"
 
92
version = "1.8.13"
82
93
 
83
94
 
84
95
def main():
93
104
    if options.debug:
94
105
        log.setLevel(logging.DEBUG)
95
106
 
96
 
    if pydbus is not None:
 
107
    if dbussy is not None and ravel is not None:
 
108
        bus = dbussy_adapter.CachingBus(dbussy, ravel)
 
109
    elif pydbus is not None:
97
110
        bus = pydbus_adapter.CachingBus(pydbus)
98
111
    else:
99
112
        bus = dbus_python_adapter.CachingBus(dbus_python)
467
480
        parser.error("--remove can only be combined with --deny")
468
481
 
469
482
 
470
 
class dbus(object):
 
483
class dbus:
471
484
 
472
 
    class SystemBus(object):
 
485
    class SystemBus:
473
486
 
474
487
        object_manager_iface = "org.freedesktop.DBus.ObjectManager"
475
488
        def get_managed_objects(self, busname, objectpath):
484
497
                             self.properties_iface, interface, key,
485
498
                             value)
486
499
 
 
500
        def call_method(self, methodname, busname, objectpath,
 
501
                        interface, *args):
 
502
            raise NotImplementedError()
 
503
 
487
504
 
488
505
    class MandosBus(SystemBus):
489
506
        busname_domain = "se.recompile"
521
538
        pass
522
539
 
523
540
 
524
 
class dbus_python_adapter(object):
 
541
class dbus_python_adapter:
525
542
 
526
543
    class SystemBus(dbus.MandosBus):
527
544
        """Use dbus-python"""
581
598
                                     self.client_interface, key,
582
599
                                     value)
583
600
 
584
 
    class SilenceLogger(object):
 
601
    class SilenceLogger:
585
602
        "Simple context manager to silence a particular logger"
586
603
        def __init__(self, loggername):
587
604
            self.logger = logging.getLogger(loggername)
616
633
                return new_object
617
634
 
618
635
 
619
 
class pydbus_adapter(object):
 
636
class pydbus_adapter:
620
637
    class SystemBus(dbus.MandosBus):
621
638
        def __init__(self, module=pydbus):
622
639
            self.pydbus = module
679
696
                return new_object
680
697
 
681
698
 
 
699
class dbussy_adapter:
 
700
    class SystemBus(dbus.SystemBus):
 
701
        """Use DBussy"""
 
702
 
 
703
        def __init__(self, dbussy, ravel):
 
704
            self.dbussy = dbussy
 
705
            self.ravel = ravel
 
706
            self.bus = ravel.system_bus()
 
707
 
 
708
        @contextlib.contextmanager
 
709
        def convert_exception(self, exception_class=dbus.Error):
 
710
            try:
 
711
                yield
 
712
            except self.dbussy.DBusError as e:
 
713
                # This does what "raise from" would do
 
714
                exc = exception_class(*e.args)
 
715
                exc.__cause__ = e
 
716
                raise exc
 
717
 
 
718
        def call_method(self, methodname, busname, objectpath,
 
719
                        interface, *args):
 
720
            proxy_object = self.get_object(busname, objectpath)
 
721
            log.debug("D-Bus: %s:%s:%s.%s(%s)", busname, objectpath,
 
722
                      interface, methodname,
 
723
                      ", ".join(repr(a) for a in args))
 
724
            iface = proxy_object.get_interface(interface)
 
725
            method = getattr(iface, methodname)
 
726
            with self.convert_exception(dbus.Error):
 
727
                value =  method(*args)
 
728
            # DBussy returns values either as an empty list or as a
 
729
            # list of one element with the return value
 
730
            if value:
 
731
                return self.type_filter(value[0])
 
732
 
 
733
        def get_object(self, busname, objectpath):
 
734
            log.debug("D-Bus: Connect to: (busname=%r, path=%r)",
 
735
                      busname, objectpath)
 
736
            with self.convert_exception(dbus.ConnectFailed):
 
737
                return self.bus[busname][objectpath]
 
738
 
 
739
        def type_filter(self, value):
 
740
            """Convert the most bothersome types to Python types"""
 
741
            # A D-Bus Variant value is represented as the Python type
 
742
            # Tuple[dbussy.DBUS.Signature, Any]
 
743
            if isinstance(value, tuple):
 
744
                if (len(value) == 2
 
745
                    and isinstance(value[0],
 
746
                                   self.dbussy.DBUS.Signature)):
 
747
                    return self.type_filter(value[1])
 
748
            elif isinstance(value, self.dbussy.DBUS.ObjectPath):
 
749
                return str(value)
 
750
            # Also recurse into dictionaries
 
751
            elif isinstance(value, dict):
 
752
                return {self.type_filter(key):
 
753
                        self.type_filter(subval)
 
754
                        for key, subval in value.items()}
 
755
            return value
 
756
 
 
757
        def set_property(self, busname, objectpath, interface, key,
 
758
                         value):
 
759
            proxy_object = self.get_object(busname, objectpath)
 
760
            log.debug("D-Bus: %s:%s:%s.Set(%r, %r, %r)", busname,
 
761
                      objectpath, self.properties_iface, interface,
 
762
                      key, value)
 
763
            if key == "Secret":
 
764
                # DBussy wants a Byte Array to be a sequence of
 
765
                # values, not a byte string
 
766
                value = tuple(value)
 
767
            setattr(proxy_object.get_interface(interface), key, value)
 
768
 
 
769
    class MandosBus(SystemBus, dbus.MandosBus):
 
770
        pass
 
771
 
 
772
    class CachingBus(MandosBus):
 
773
        """A caching layer for dbussy_adapter.MandosBus"""
 
774
        def __init__(self, *args, **kwargs):
 
775
            self.object_cache = {}
 
776
            super(dbussy_adapter.CachingBus, self).__init__(*args,
 
777
                                                            **kwargs)
 
778
        def get_object(self, busname, objectpath):
 
779
            try:
 
780
                return self.object_cache[(busname, objectpath)]
 
781
            except KeyError:
 
782
                new_object = super(
 
783
                    dbussy_adapter.CachingBus,
 
784
                    self).get_object(busname, objectpath)
 
785
                self.object_cache[(busname, objectpath)]  = new_object
 
786
                return new_object
 
787
 
 
788
 
682
789
def commands_from_options(options):
683
790
 
684
791
    commands = list(options.commands)
712
819
    return commands
713
820
 
714
821
 
715
 
class command(object):
 
822
class command:
716
823
    """A namespace for command classes"""
717
824
 
718
 
    class Base(object):
 
825
    class Base:
719
826
        """Abstract base class for commands"""
720
827
        def run(self, clients, bus=None):
721
828
            """Normal commands should implement run_on_one_client(),
784
891
                keywords = self.all_keywords
785
892
            print(self.TableOfClients(clients.values(), keywords))
786
893
 
787
 
        class TableOfClients(object):
 
894
        class TableOfClients:
788
895
            tableheaders = {
789
896
                "Name": "Name",
790
897
                "Enabled": "Enabled",
1021
1128
                                                     "output"))
1022
1129
 
1023
1130
 
1024
 
class Unique(object):
 
1131
class Unique:
1025
1132
    """Class for objects which exist only to be unique objects, since
1026
1133
unittest.mock.sentinel only exists in Python 3.3"""
1027
1134
 
1311
1418
class Test_dbus_python_adapter_SystemBus(TestCaseWithAssertLogs):
1312
1419
 
1313
1420
    def MockDBusPython_func(self, func):
1314
 
        class mock_dbus_python(object):
 
1421
        class mock_dbus_python:
1315
1422
            """mock dbus-python module"""
1316
 
            class exceptions(object):
 
1423
            class exceptions:
1317
1424
                """Pseudo-namespace"""
1318
1425
                class DBusException(Exception):
1319
1426
                    pass
1320
 
            class SystemBus(object):
 
1427
            class SystemBus:
1321
1428
                @staticmethod
1322
1429
                def get_object(busname, objectpath):
1323
1430
                    DBusObject = collections.namedtuple(
1337
1444
                                    dbus_interface=dbus_interface)
1338
1445
                    return DBusObject(methodname=method,
1339
1446
                                      Set=set_property)
1340
 
            class Boolean(object):
 
1447
            class Boolean:
1341
1448
                def __init__(self, value):
1342
1449
                    self.value = bool(value)
1343
1450
                def __bool__(self):
1527
1634
        finally:
1528
1635
            dbus_logger.removeFilter(counting_handler)
1529
1636
 
1530
 
        self.assertNotIsInstance(e, dbus.ConnectFailed)
 
1637
        self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
1531
1638
 
1532
1639
        # Make sure the dbus logger was suppressed
1533
1640
        self.assertEqual(0, counting_handler.count)
1555
1662
            self.call_method(bus, "methodname", "busname",
1556
1663
                             "objectpath", "interface")
1557
1664
 
1558
 
    class fake_dbus_python_raises_exception_on_connect(object):
 
1665
    class fake_dbus_python_raises_exception_on_connect:
1559
1666
        """fake dbus-python module"""
1560
 
        class exceptions(object):
 
1667
        class exceptions:
1561
1668
            """Pseudo-namespace"""
1562
1669
            class DBusException(Exception):
1563
1670
                pass
1571
1678
 
1572
1679
 
1573
1680
class Test_dbus_python_adapter_CachingBus(unittest.TestCase):
1574
 
    class mock_dbus_python(object):
 
1681
    class mock_dbus_python:
1575
1682
        """mock dbus-python modules"""
1576
 
        class SystemBus(object):
 
1683
        class SystemBus:
1577
1684
            @staticmethod
1578
1685
            def get_object(busname, objectpath):
1579
1686
                return Unique()
1625
1732
class Test_pydbus_adapter_SystemBus(TestCaseWithAssertLogs):
1626
1733
 
1627
1734
    def Stub_pydbus_func(self, func):
1628
 
        class stub_pydbus(object):
 
1735
        class stub_pydbus:
1629
1736
            """stub pydbus module"""
1630
 
            class SystemBus(object):
 
1737
            class SystemBus:
1631
1738
                @staticmethod
1632
1739
                def get(busname, objectpath):
1633
1740
                    DBusObject = collections.namedtuple(
1670
1777
            self.call_method(bus, "methodname", "busname",
1671
1778
                             "objectpath", "interface")
1672
1779
 
1673
 
        self.assertNotIsInstance(e, dbus.ConnectFailed)
 
1780
        self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
1674
1781
 
1675
1782
    def test_get_converts_to_correct_exception(self):
1676
1783
        bus = pydbus_adapter.SystemBus(
1679
1786
            self.call_method(bus, "methodname", "busname",
1680
1787
                             "objectpath", "interface")
1681
1788
 
1682
 
    class fake_pydbus_raises_exception_on_connect(object):
 
1789
    class fake_pydbus_raises_exception_on_connect:
1683
1790
        """fake dbus-python module"""
1684
1791
        @classmethod
1685
1792
        def SystemBus(cls):
1689
1796
            return Bus(get=get)
1690
1797
 
1691
1798
    def test_set_property_uses_setattr(self):
1692
 
        class Object(object):
 
1799
        class Object:
1693
1800
            pass
1694
1801
        obj = Object()
1695
 
        class pydbus_spy(object):
1696
 
            class SystemBus(object):
 
1802
        class pydbus_spy:
 
1803
            class SystemBus:
1697
1804
                @staticmethod
1698
1805
                def get(busname, objectpath):
1699
1806
                    return {"interface": obj}
1706
1813
    def test_get_suppresses_xml_deprecation_warning(self):
1707
1814
        if sys.version_info.major >= 3:
1708
1815
            return
1709
 
        class stub_pydbus_get(object):
1710
 
            class SystemBus(object):
 
1816
        class stub_pydbus_get:
 
1817
            class SystemBus:
1711
1818
                @staticmethod
1712
1819
                def get(busname, objectpath):
1713
1820
                    warnings.warn_explicit(
1721
1828
 
1722
1829
 
1723
1830
class Test_pydbus_adapter_CachingBus(unittest.TestCase):
1724
 
    class stub_pydbus(object):
 
1831
    class stub_pydbus:
1725
1832
        """stub pydbus module"""
1726
 
        class SystemBus(object):
 
1833
        class SystemBus:
1727
1834
            @staticmethod
1728
1835
            def get(busname, objectpath):
1729
1836
                return Unique()
1771
1878
        self.assertIs(obj1, obj1b)
1772
1879
 
1773
1880
 
 
1881
class Test_dbussy_adapter_SystemBus(TestCaseWithAssertLogs):
 
1882
 
 
1883
    class dummy_dbussy:
 
1884
        class DBUS:
 
1885
            class ObjectPath(str):
 
1886
                pass
 
1887
        class DBusError(Exception):
 
1888
            pass
 
1889
 
 
1890
    def fake_ravel_func(self, func):
 
1891
        class fake_ravel:
 
1892
            @staticmethod
 
1893
            def system_bus():
 
1894
                class DBusInterfaceProxy:
 
1895
                    @staticmethod
 
1896
                    def methodname(*args):
 
1897
                        return [func(*args)]
 
1898
                class DBusObject:
 
1899
                    @staticmethod
 
1900
                    def get_interface(interface):
 
1901
                        if interface == "interface":
 
1902
                            return DBusInterfaceProxy()
 
1903
                return {"busname": {"objectpath": DBusObject()}}
 
1904
        return fake_ravel
 
1905
 
 
1906
    def call_method(self, bus, methodname, busname, objectpath,
 
1907
                    interface, *args):
 
1908
        with self.assertLogs(log, logging.DEBUG):
 
1909
            return bus.call_method(methodname, busname, objectpath,
 
1910
                                   interface, *args)
 
1911
 
 
1912
    def test_call_method_returns(self):
 
1913
        expected_method_return = Unique()
 
1914
        method_args = (Unique(), Unique())
 
1915
        def func(*args):
 
1916
            self.assertEqual(len(method_args), len(args))
 
1917
            for marg, arg in zip(method_args, args):
 
1918
                self.assertIs(marg, arg)
 
1919
            return expected_method_return
 
1920
        fake_ravel = self.fake_ravel_func(func)
 
1921
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
1922
        ret = self.call_method(bus, "methodname", "busname",
 
1923
                               "objectpath", "interface",
 
1924
                               *method_args)
 
1925
        self.assertIs(ret, expected_method_return)
 
1926
 
 
1927
    def test_call_method_filters_objectpath(self):
 
1928
        def func():
 
1929
            return method_return
 
1930
        fake_ravel = self.fake_ravel_func(func)
 
1931
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
1932
        method_return = (self.dummy_dbussy.DBUS
 
1933
                         .ObjectPath("objectpath"))
 
1934
        ret = self.call_method(bus, "methodname", "busname",
 
1935
                               "objectpath", "interface")
 
1936
        self.assertEqual("objectpath", ret)
 
1937
        self.assertNotIsInstance(ret,
 
1938
                                 self.dummy_dbussy.DBUS.ObjectPath)
 
1939
 
 
1940
    def test_call_method_filters_objectpaths_in_dict(self):
 
1941
        ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
 
1942
        def func():
 
1943
            return method_return
 
1944
        fake_ravel = self.fake_ravel_func(func)
 
1945
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
1946
        method_return = {
 
1947
            ObjectPath("objectpath_key_1"):
 
1948
            ObjectPath("objectpath_value_1"),
 
1949
            ObjectPath("objectpath_key_2"):
 
1950
            ObjectPath("objectpath_value_2"),
 
1951
        }
 
1952
        ret = self.call_method(bus, "methodname", "busname",
 
1953
                               "objectpath", "interface")
 
1954
        expected_method_return = {str(key): str(value)
 
1955
                                  for key, value in
 
1956
                                  method_return.items()}
 
1957
        for key, value in ret.items():
 
1958
            self.assertNotIsInstance(key, ObjectPath)
 
1959
            self.assertNotIsInstance(value, ObjectPath)
 
1960
        self.assertEqual(expected_method_return, ret)
 
1961
        self.assertIsInstance(ret, dict)
 
1962
 
 
1963
    def test_call_method_filters_objectpaths_in_dict_in_dict(self):
 
1964
        ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
 
1965
        def func():
 
1966
            return method_return
 
1967
        fake_ravel = self.fake_ravel_func(func)
 
1968
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
1969
        method_return = {
 
1970
            ObjectPath("key1"): {
 
1971
                ObjectPath("key11"): ObjectPath("value11"),
 
1972
                ObjectPath("key12"): ObjectPath("value12"),
 
1973
            },
 
1974
            ObjectPath("key2"): {
 
1975
                ObjectPath("key21"): ObjectPath("value21"),
 
1976
                ObjectPath("key22"): ObjectPath("value22"),
 
1977
            },
 
1978
        }
 
1979
        ret = self.call_method(bus, "methodname", "busname",
 
1980
                               "objectpath", "interface")
 
1981
        expected_method_return = {
 
1982
            "key1": {"key11": "value11",
 
1983
                     "key12": "value12"},
 
1984
            "key2": {"key21": "value21",
 
1985
                     "key22": "value22"},
 
1986
        }
 
1987
        self.assertEqual(expected_method_return, ret)
 
1988
        for key, value in ret.items():
 
1989
            self.assertIsInstance(value, dict)
 
1990
            self.assertEqual(expected_method_return[key], value)
 
1991
            self.assertNotIsInstance(key, ObjectPath)
 
1992
            for inner_key, inner_value in value.items():
 
1993
                self.assertIsInstance(value, dict)
 
1994
                self.assertEqual(
 
1995
                    expected_method_return[key][inner_key],
 
1996
                    inner_value)
 
1997
                self.assertNotIsInstance(key, ObjectPath)
 
1998
 
 
1999
    def test_call_method_filters_objectpaths_in_dict_three_deep(self):
 
2000
        ObjectPath = self.dummy_dbussy.DBUS.ObjectPath
 
2001
        def func():
 
2002
            return method_return
 
2003
        fake_ravel = self.fake_ravel_func(func)
 
2004
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
2005
        method_return = {
 
2006
            ObjectPath("key1"): {
 
2007
                ObjectPath("key2"): {
 
2008
                    ObjectPath("key3"): ObjectPath("value"),
 
2009
                },
 
2010
            },
 
2011
        }
 
2012
        ret = self.call_method(bus, "methodname", "busname",
 
2013
                               "objectpath", "interface")
 
2014
        expected_method_return = {"key1": {"key2": {"key3": "value"}}}
 
2015
        self.assertEqual(expected_method_return, ret)
 
2016
        self.assertIsInstance(ret, dict)
 
2017
        self.assertNotIsInstance(next(iter(ret.keys())), ObjectPath)
 
2018
        self.assertIsInstance(ret["key1"], dict)
 
2019
        self.assertNotIsInstance(next(iter(ret["key1"].keys())),
 
2020
                                 ObjectPath)
 
2021
        self.assertIsInstance(ret["key1"]["key2"], dict)
 
2022
        self.assertNotIsInstance(
 
2023
            next(iter(ret["key1"]["key2"].keys())),
 
2024
            ObjectPath)
 
2025
        self.assertEqual("value", ret["key1"]["key2"]["key3"])
 
2026
        self.assertNotIsInstance(ret["key1"]["key2"]["key3"],
 
2027
                                 self.dummy_dbussy.DBUS.ObjectPath)
 
2028
 
 
2029
    def test_call_method_handles_exception(self):
 
2030
        def func():
 
2031
            raise self.dummy_dbussy.DBusError()
 
2032
 
 
2033
        fake_ravel = self.fake_ravel_func(func)
 
2034
        bus = dbussy_adapter.SystemBus(self.dummy_dbussy, fake_ravel)
 
2035
 
 
2036
        with self.assertRaises(dbus.Error) as e:
 
2037
            self.call_method(bus, "methodname", "busname",
 
2038
                             "objectpath", "interface")
 
2039
 
 
2040
        self.assertNotIsInstance(e.exception, dbus.ConnectFailed)
 
2041
 
 
2042
    def test_get_object_converts_to_correct_exception(self):
 
2043
        class fake_ravel_raises_exception_on_connect:
 
2044
            @staticmethod
 
2045
            def system_bus():
 
2046
                class Bus:
 
2047
                    @staticmethod
 
2048
                    def __getitem__(key):
 
2049
                        if key == "objectpath":
 
2050
                            raise self.dummy_dbussy.DBusError()
 
2051
                        raise Exception(key)
 
2052
                return {"busname": Bus()}
 
2053
        def func():
 
2054
            raise self.dummy_dbussy.DBusError()
 
2055
        bus = dbussy_adapter.SystemBus(
 
2056
            self.dummy_dbussy,
 
2057
            fake_ravel_raises_exception_on_connect)
 
2058
        with self.assertRaises(dbus.ConnectFailed):
 
2059
            self.call_method(bus, "methodname", "busname",
 
2060
                             "objectpath", "interface")
 
2061
 
 
2062
 
1774
2063
class Test_commands_from_options(unittest.TestCase):
1775
2064
 
1776
2065
    def setUp(self):