+ def test_config_parameter(self):
+ class MyIter(bt2._UserMessageIterator):
+ def __init__(self, config, port):
+ nonlocal config_type
+ config_type = type(config)
+
+ class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+ def __init__(self, config, params, obj):
+ self._add_output_port('out')
+
+ config_type = None
+ graph = _create_graph(MySource, SimpleSink)
+ graph.run()
+ self.assertIs(config_type, bt2_message_iterator._MessageIteratorConfiguration)
+
+ def _test_config_can_seek_forward(self, set_can_seek_forward):
+ class MyIter(bt2._UserMessageIterator):
+ def __init__(self, config, port):
+ if set_can_seek_forward:
+ config.can_seek_forward = True
+
+ class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+ def __init__(self, config, params, obj):
+ self._add_output_port('out')
+
+ class MySink(bt2._UserSinkComponent):
+ def __init__(self, config, params, obj):
+ self._add_input_port('in')
+
+ def _user_graph_is_configured(self):
+ self._msg_iter = self._create_input_port_message_iterator(
+ self._input_ports['in']
+ )
+
+ def _user_consume(self):
+ nonlocal can_seek_forward
+ can_seek_forward = self._msg_iter.can_seek_forward
+
+ can_seek_forward = None
+ graph = _create_graph(MySource, MySink)
+ graph.run_once()
+ self.assertIs(can_seek_forward, set_can_seek_forward)
+
+ def test_config_can_seek_forward_default(self):
+ self._test_config_can_seek_forward(False)
+
+ def test_config_can_seek_forward(self):
+ self._test_config_can_seek_forward(True)
+
+ def test_config_can_seek_forward_wrong_type(self):
+ class MyIter(bt2._UserMessageIterator):
+ def __init__(self, config, port):
+ config.can_seek_forward = 1
+
+ class MySource(bt2._UserSourceComponent, message_iterator_class=MyIter):
+ def __init__(self, config, params, obj):
+ self._add_output_port('out')
+
+ graph = _create_graph(MySource, SimpleSink)
+ with self.assertRaises(bt2._Error) as ctx:
+ graph.run()
+
+ root_cause = ctx.exception[0]
+ self.assertIn("TypeError: 'int' is not a 'bool' object", root_cause.message)
+