# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
-from bt2 import value
-import collections
import unittest
-import copy
import bt2
import sys
from utils import TestOutputPortMessageIterator
self.assertTrue(src_iter_initialized)
self.assertTrue(flt_iter_initialized)
+ def test_create_user_error(self):
+ # This tests both error handling by
+ # _UserSinkComponent._create_input_port_message_iterator
+ # and _UserMessageIterator._create_input_port_message_iterator, as they
+ # are both used in the graph.
+ class MySourceIter(bt2._UserMessageIterator):
+ def __init__(self, self_port_output):
+ raise ValueError('Very bad error')
+
+ class MySource(bt2._UserSourceComponent, message_iterator_class=MySourceIter):
+ def __init__(self, params, obj):
+ self._add_output_port('out')
+
+ class MyFilterIter(bt2._UserMessageIterator):
+ def __init__(self, self_port_output):
+ # This is expected to raise because of the error in
+ # MySourceIter.__init__.
+ self._create_input_port_message_iterator(
+ self._component._input_ports['in']
+ )
+
+ class MyFilter(bt2._UserFilterComponent, message_iterator_class=MyFilterIter):
+ def __init__(self, params, obj):
+ self._add_input_port('in')
+ self._add_output_port('out')
+
+ graph = self._create_graph(MySource, MyFilter)
+
+ with self.assertRaises(bt2._Error) as ctx:
+ graph.run()
+
+ exc = ctx.exception
+ cause = exc[0]
+
+ self.assertIsInstance(cause, bt2._MessageIteratorErrorCause)
+ self.assertEqual(cause.component_name, 'src')
+ self.assertEqual(cause.component_output_port_name, 'out')
+ self.assertIn('ValueError: Very bad error', cause.message)
+
def test_finalize(self):
class MyIter(bt2._UserMessageIterator):
def _user_finalize(self):
# Skip beginning messages.
msg = next(it)
- self.assertIsInstance(msg, bt2._StreamBeginningMessage)
+ self.assertIs(type(msg), bt2._StreamBeginningMessageConst)
msg = next(it)
- self.assertIsInstance(msg, bt2._PacketBeginningMessage)
+ self.assertIs(type(msg), bt2._PacketBeginningMessageConst)
msg_ev1 = next(it)
msg_ev2 = next(it)
- self.assertIsInstance(msg_ev1, bt2._EventMessage)
- self.assertIsInstance(msg_ev2, bt2._EventMessage)
+ self.assertIs(type(msg_ev1), bt2._EventMessageConst)
+ self.assertIs(type(msg_ev2), bt2._EventMessageConst)
self.assertEqual(msg_ev1.addr, msg_ev2.addr)
@staticmethod
msg = None
MySourceIter, graph = self._setup_seek_beginning_test(MySink)
graph.run_once()
- self.assertIsInstance(msg, bt2._StreamBeginningMessage)
+ self.assertIs(type(msg), bt2._StreamBeginningMessageConst)
graph.run_once()
- self.assertIsInstance(msg, bt2._PacketBeginningMessage)
+ self.assertIs(type(msg), bt2._PacketBeginningMessageConst)
do_seek_beginning = True
graph.run_once()
do_seek_beginning = False
graph.run_once()
- self.assertIsInstance(msg, bt2._StreamBeginningMessage)
+ self.assertIs(type(msg), bt2._StreamBeginningMessageConst)
def test_seek_beginning_user_error(self):
class MySink(bt2._UserSinkComponent):