fix: test_message_iterator.py hangs on Python 3.12
[babeltrace.git] / tests / bindings / python / bt2 / test_connection.py
1 #
2 # Copyright (C) 2019 EfficiOS Inc.
3 #
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License
6 # as published by the Free Software Foundation; only version 2
7 # of the License.
8 #
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
13 #
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 #
18
19 import unittest
20 import bt2
21 from bt2 import connection as bt2_connection
22 from bt2 import port as bt2_port
23
24
25 class ConnectionTestCase(unittest.TestCase):
26 def test_create(self):
27 class MySource(
28 bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
29 ):
30 def __init__(self, config, params, obj):
31 self._add_output_port('out')
32
33 class MySink(bt2._UserSinkComponent):
34 def __init__(self, config, params, obj):
35 self._add_input_port('in')
36
37 def _user_consume(self):
38 raise bt2.Stop
39
40 graph = bt2.Graph()
41 src = graph.add_component(MySource, 'src')
42 sink = graph.add_component(MySink, 'sink')
43 conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in'])
44 self.assertIs(type(conn), bt2_connection._ConnectionConst)
45
46 def test_downstream_port(self):
47 class MySource(
48 bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
49 ):
50 def __init__(self, config, params, obj):
51 self._add_output_port('out')
52
53 class MySink(bt2._UserSinkComponent):
54 def __init__(self, config, params, obj):
55 self._add_input_port('in')
56
57 def _user_consume(self):
58 raise bt2.Stop
59
60 graph = bt2.Graph()
61 src = graph.add_component(MySource, 'src')
62 sink = graph.add_component(MySink, 'sink')
63 conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in'])
64 self.assertEqual(conn.downstream_port.addr, sink.input_ports['in'].addr)
65 self.assertIs(type(conn), bt2_connection._ConnectionConst)
66 self.assertIs(type(conn.downstream_port), bt2_port._InputPortConst)
67
68 def test_upstream_port(self):
69 class MySource(
70 bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
71 ):
72 def __init__(self, config, params, obj):
73 self._add_output_port('out')
74
75 class MySink(bt2._UserSinkComponent):
76 def __init__(self, config, params, obj):
77 self._add_input_port('in')
78
79 def _user_consume(self):
80 raise bt2.Stop
81
82 graph = bt2.Graph()
83 src = graph.add_component(MySource, 'src')
84 sink = graph.add_component(MySink, 'sink')
85 conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in'])
86 self.assertEqual(conn.upstream_port.addr, src.output_ports['out'].addr)
87 self.assertIs(type(conn.upstream_port), bt2_port._OutputPortConst)
88
89
90 if __name__ == '__main__':
91 unittest.main()
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