bt2: check for _graph_is_configured method in user sink classes
[babeltrace.git] / tests / bindings / python / bt2 / test_connection.py
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MJ
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
811644b8 19import unittest
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20import bt2
21
22
23class ConnectionTestCase(unittest.TestCase):
24 def test_create(self):
5602ef81 25 class MyIter(bt2._UserMessageIterator):
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26 def __next__(self):
27 raise bt2.Stop
28
29 class MySource(bt2._UserSourceComponent,
5602ef81 30 message_iterator_class=MyIter):
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31 def __init__(self, params):
32 self._add_output_port('out')
33
34 class MySink(bt2._UserSinkComponent):
35 def __init__(self, params):
36 self._add_input_port('in')
37
38 def _consume(self):
39 raise bt2.Stop
40
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41 def _graph_is_configured(self):
42 pass
43
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44 graph = bt2.Graph()
45 src = graph.add_component(MySource, 'src')
46 sink = graph.add_component(MySink, 'sink')
47 conn = graph.connect_ports(src.output_ports['out'],
48 sink.input_ports['in'])
49 self.assertIsInstance(conn, bt2._Connection)
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50
51 def test_downstream_port(self):
5602ef81 52 class MyIter(bt2._UserMessageIterator):
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53 def __next__(self):
54 raise bt2.Stop
55
56 class MySource(bt2._UserSourceComponent,
5602ef81 57 message_iterator_class=MyIter):
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58 def __init__(self, params):
59 self._add_output_port('out')
60
61 class MySink(bt2._UserSinkComponent):
62 def __init__(self, params):
63 self._add_input_port('in')
64
65 def _consume(self):
66 raise bt2.Stop
67
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68 def _graph_is_configured(self):
69 pass
70
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71 graph = bt2.Graph()
72 src = graph.add_component(MySource, 'src')
73 sink = graph.add_component(MySink, 'sink')
74 conn = graph.connect_ports(src.output_ports['out'],
75 sink.input_ports['in'])
76 self.assertEqual(conn.downstream_port.addr, sink.input_ports['in'].addr)
77
78 def test_upstream_port(self):
5602ef81 79 class MyIter(bt2._UserMessageIterator):
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80 def __next__(self):
81 raise bt2.Stop
82
83 class MySource(bt2._UserSourceComponent,
5602ef81 84 message_iterator_class=MyIter):
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85 def __init__(self, params):
86 self._add_output_port('out')
87
88 class MySink(bt2._UserSinkComponent):
89 def __init__(self, params):
90 self._add_input_port('in')
91
92 def _consume(self):
93 raise bt2.Stop
94
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95 def _graph_is_configured(self):
96 pass
97
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98 graph = bt2.Graph()
99 src = graph.add_component(MySource, 'src')
100 sink = graph.add_component(MySink, 'sink')
101 conn = graph.connect_ports(src.output_ports['out'],
102 sink.input_ports['in'])
103 self.assertEqual(conn.upstream_port.addr, src.output_ports['out'].addr)
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