| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | # |
| 3 | # Copyright (C) 2019 EfficiOS Inc. |
| 4 | # |
| 5 | |
| 6 | import unittest |
| 7 | import bt2 |
| 8 | from bt2 import connection as bt2_connection |
| 9 | from bt2 import port as bt2_port |
| 10 | |
| 11 | |
| 12 | class ConnectionTestCase(unittest.TestCase): |
| 13 | def test_create(self): |
| 14 | class MySource( |
| 15 | bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator |
| 16 | ): |
| 17 | def __init__(self, config, params, obj): |
| 18 | self._add_output_port('out') |
| 19 | |
| 20 | class MySink(bt2._UserSinkComponent): |
| 21 | def __init__(self, config, params, obj): |
| 22 | self._add_input_port('in') |
| 23 | |
| 24 | def _user_consume(self): |
| 25 | raise bt2.Stop |
| 26 | |
| 27 | graph = bt2.Graph() |
| 28 | src = graph.add_component(MySource, 'src') |
| 29 | sink = graph.add_component(MySink, 'sink') |
| 30 | conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in']) |
| 31 | self.assertIs(type(conn), bt2_connection._ConnectionConst) |
| 32 | |
| 33 | def test_downstream_port(self): |
| 34 | class MySource( |
| 35 | bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator |
| 36 | ): |
| 37 | def __init__(self, config, params, obj): |
| 38 | self._add_output_port('out') |
| 39 | |
| 40 | class MySink(bt2._UserSinkComponent): |
| 41 | def __init__(self, config, params, obj): |
| 42 | self._add_input_port('in') |
| 43 | |
| 44 | def _user_consume(self): |
| 45 | raise bt2.Stop |
| 46 | |
| 47 | graph = bt2.Graph() |
| 48 | src = graph.add_component(MySource, 'src') |
| 49 | sink = graph.add_component(MySink, 'sink') |
| 50 | conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in']) |
| 51 | self.assertEqual(conn.downstream_port.addr, sink.input_ports['in'].addr) |
| 52 | self.assertIs(type(conn), bt2_connection._ConnectionConst) |
| 53 | self.assertIs(type(conn.downstream_port), bt2_port._InputPortConst) |
| 54 | |
| 55 | def test_upstream_port(self): |
| 56 | class MySource( |
| 57 | bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator |
| 58 | ): |
| 59 | def __init__(self, config, params, obj): |
| 60 | self._add_output_port('out') |
| 61 | |
| 62 | class MySink(bt2._UserSinkComponent): |
| 63 | def __init__(self, config, params, obj): |
| 64 | self._add_input_port('in') |
| 65 | |
| 66 | def _user_consume(self): |
| 67 | raise bt2.Stop |
| 68 | |
| 69 | graph = bt2.Graph() |
| 70 | src = graph.add_component(MySource, 'src') |
| 71 | sink = graph.add_component(MySink, 'sink') |
| 72 | conn = graph.connect_ports(src.output_ports['out'], sink.input_ports['in']) |
| 73 | self.assertEqual(conn.upstream_port.addr, src.output_ports['out'].addr) |
| 74 | self.assertIs(type(conn.upstream_port), bt2_port._OutputPortConst) |
| 75 | |
| 76 | |
| 77 | if __name__ == '__main__': |
| 78 | unittest.main() |