- test_obj = self
- graph = bt2.Graph()
- src = graph.add_component(MySource, 'src')
- msg_iter = graph.create_output_port_message_iterator(src.output_ports['out'])
-
- for at, msg in enumerate(msg_iter):
- if at == 0:
- self.assertIsInstance(msg, bt2._StreamBeginningMessage)
- elif at == 1:
- self.assertIsInstance(msg, bt2._PacketBeginningMessage)
- elif at == 5:
- self.assertIsInstance(msg, bt2._PacketEndMessage)
- elif at == 6:
- self.assertIsInstance(msg, bt2._StreamEndMessage)
- else:
- self.assertIsInstance(msg, bt2._EventMessage)
- self.assertEqual(msg.event.cls.name, 'salut')
- field = msg.event.payload_field['my_int']
- self.assertEqual(field, at * 3)
+ else:
+ user_can_seek_ns_from_origin = None
+
+ if user_seek_ns_from_origin_provided:
+
+ def user_seek_ns_from_origin(self, ns_from_origin):
+ pass
+
+ else:
+ user_seek_ns_from_origin = None
+
+ if iter_can_seek_beginning:
+
+ def user_seek_beginning(self):
+ pass
+
+ else:
+ user_seek_beginning = None
+
+ graph = _setup_seek_test(
+ MySink,
+ user_can_seek_ns_from_origin=user_can_seek_ns_from_origin,
+ user_seek_ns_from_origin=user_seek_ns_from_origin,
+ user_seek_beginning=user_seek_beginning,
+ can_seek_forward=iter_can_seek_forward,
+ )
+
+ passed_ns_from_origin = 77
+ received_ns_from_origin = None
+ can_seek_ns_from_origin = None
+ graph.run_once()
+ self.assertIs(can_seek_ns_from_origin, expected_outcome)
+
+ if user_can_seek_ns_from_origin_ret_val is not None:
+ self.assertEqual(received_ns_from_origin, passed_ns_from_origin)
+
+ def test_can_seek_ns_from_origin_user_error(self):
+ 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):
+ # This is expected to raise.
+ self._msg_iter.can_seek_ns_from_origin(2)
+
+ def _user_can_seek_ns_from_origin(self, ns_from_origin):
+ raise ValueError('Joutel')
+
+ graph = _setup_seek_test(
+ MySink, user_can_seek_ns_from_origin=_user_can_seek_ns_from_origin
+ )
+
+ with self.assertRaises(bt2._Error) as ctx:
+ graph.run_once()
+
+ cause = ctx.exception[0]
+ self.assertIn('ValueError: Joutel', cause.message)
+
+ def test_can_seek_ns_from_origin_wrong_return_value(self):
+ 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):
+ # This is expected to raise.
+ self._msg_iter.can_seek_ns_from_origin(2)
+
+ def _user_can_seek_ns_from_origin(self, ns_from_origin):
+ return 'Nitchequon'
+
+ graph = _setup_seek_test(
+ MySink, user_can_seek_ns_from_origin=_user_can_seek_ns_from_origin
+ )
+
+ with self.assertRaises(bt2._Error) as ctx:
+ graph.run_once()
+
+ cause = ctx.exception[0]
+ self.assertIn("TypeError: 'str' is not a 'bool' object", cause.message)
+
+ def test_seek_ns_from_origin(self):
+ 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):
+ self._msg_iter.seek_ns_from_origin(17)
+
+ def _user_seek_ns_from_origin(self, ns_from_origin):
+ nonlocal actual_ns_from_origin
+ actual_ns_from_origin = ns_from_origin
+
+ graph = _setup_seek_test(
+ MySink, user_seek_ns_from_origin=_user_seek_ns_from_origin
+ )
+
+ actual_ns_from_origin = None
+ graph.run_once()
+ self.assertEqual(actual_ns_from_origin, 17)