74     def clear_signal_content(self, signal_name):  argument
80         if signal_name in self.__signal_content:
81             self.__signal_content[signal_name] = None
83     def get_signal_content(self, signal_name):  argument
92         return self.__signal_content.get(signal_name)
94     def handle_signal(self, interface, signal_name, argument_names=()):  argument
102         if signal_name in self.__signal_content:
105         self.__signal_content[signal_name] = None
108             self.__signal_content[signal_name] = dict(zip(argument_names, args))
111                       signal_name, ', '.join(argument_names), interface)
112         self.proxy_object.connect_to_signal(signal_name, signal_handler,
115     def wait_for_signal(self, signal_name):  argument
124         if signal_name not in self.__signal_content:
131             return self.__signal_content[signal_name] is not None
133         logging.debug('Waiting for D-Bus signal "%s"', signal_name)
135                                  desc='%s signal' % signal_name,
137         content = self.__signal_content[signal_name]
138         logging.debug('Received D-Bus signal "%s(%s)"', signal_name, content)
139         self.__signal_content[signal_name] = None
142     def expect_signal(self, signal_name, expected_content):  argument
158         actual_content = self.wait_for_signal(signal_name)
160                       signal_name, expected_content, actual_content)
165                     (signal_name, argument, expected_content, actual_content))
170                     (signal_name, argument, expected_content, actual_content))