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# SPDX-License-Identifier: GPL-2.0-only
#
# Copyright (C) 2019 EfficiOS Inc.
#
import unittest
import bt2
from bt2 import port as bt2_port
from bt2 import connection as bt2_connection
class ConnectionTestCase(unittest.TestCase):
def test_create(self):
class MySource(
bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
):
def __init__(self, config, params, obj):
self._add_output_port("out")
class MySink(bt2._UserSinkComponent):
def __init__(self, config, params, obj):
self._add_input_port("in")
def _user_consume(self):
raise bt2.Stop
graph = bt2.Graph()
src = graph.add_component(MySource, "src")
sink = graph.add_component(MySink, "sink")
conn = graph.connect_ports(src.output_ports["out"], sink.input_ports["in"])
self.assertIs(type(conn), bt2_connection._ConnectionConst)
def test_downstream_port(self):
class MySource(
bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
):
def __init__(self, config, params, obj):
self._add_output_port("out")
class MySink(bt2._UserSinkComponent):
def __init__(self, config, params, obj):
self._add_input_port("in")
def _user_consume(self):
raise bt2.Stop
graph = bt2.Graph()
src = graph.add_component(MySource, "src")
sink = graph.add_component(MySink, "sink")
conn = graph.connect_ports(src.output_ports["out"], sink.input_ports["in"])
self.assertEqual(conn.downstream_port.addr, sink.input_ports["in"].addr)
self.assertIs(type(conn), bt2_connection._ConnectionConst)
self.assertIs(type(conn.downstream_port), bt2_port._InputPortConst)
def test_upstream_port(self):
class MySource(
bt2._UserSourceComponent, message_iterator_class=bt2._UserMessageIterator
):
def __init__(self, config, params, obj):
self._add_output_port("out")
class MySink(bt2._UserSinkComponent):
def __init__(self, config, params, obj):
self._add_input_port("in")
def _user_consume(self):
raise bt2.Stop
graph = bt2.Graph()
src = graph.add_component(MySource, "src")
sink = graph.add_component(MySink, "sink")
conn = graph.connect_ports(src.output_ports["out"], sink.input_ports["in"])
self.assertEqual(conn.upstream_port.addr, src.output_ports["out"].addr)
self.assertIs(type(conn.upstream_port), bt2_port._OutputPortConst)
if __name__ == "__main__":
unittest.main()
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