def test_default_name_and_projections_listing_for_input_port_in_constructor(
self):
T1 = TransferMechanism()
my_input_port = InputPort(projections=[T1])
T2 = TransferMechanism(input_ports=[my_input_port])
assert T2.input_ports[0].name == 'InputPort-0'
assert T2.input_ports[0].projections[0].sender.name == 'RESULT'
def test_user_added_ports(self):
comp = Composition()
mech = ProcessingMechanism()
comp.add_node(mech)
# instantiate custom input and output ports
inp = InputPort(size=2)
out = OutputPort(size=2)
# add custom input and output ports to CIM
comp.input_CIM.add_ports([inp, out])
# verify the ports have been added to the user_added_ports set
# and that no extra ports were added
assert inp in comp.input_CIM.user_added_ports['input_ports']
assert len(comp.input_CIM.user_added_ports['input_ports']) == 1
assert out in comp.input_CIM.user_added_ports['output_ports']
assert len(comp.input_CIM.user_added_ports['output_ports']) == 1
comp.input_CIM.remove_ports([inp, out])
# verify that call to remove ports succesfully removed the ports from user_added_ports
assert len(comp.input_CIM.user_added_ports['input_ports']) == 0
assert len(comp.input_CIM.user_added_ports['output_ports']) == 0
def test_warning_on_custom_cim_ports(self):
comp = Composition()
mech = ProcessingMechanism()
comp.add_node(mech)
warning_text = (
'You are attempting to add custom ports to a CIM, which can result in unpredictable behavior '
'and is therefore recommended against. If suitable, you should instead add ports to the '
r'mechanism\(s\) that project to or are projected to from the CIM.'
)
with pytest.warns(UserWarning, match=warning_text):
# KDM 7/22/20: previously was OutputPort, but that produces
# an invalid CIM state that cannot be executed, and will
# throw an error due to new _update_default_variable call
comp.input_CIM.add_ports(InputPort())
with pytest.warns(None) as w:
comp._analyze_graph()
comp.run({mech: [[1]]})
assert len(w) == 0
def test_add_input_port_with_projection_by_assigning_owner(self):
T1 = TransferMechanism()
T2 = TransferMechanism()
InputPort(owner=T2, projections=[T1])
assert T2.input_ports[1].path_afferents[0].sender.owner is T1
def test_add_input_port_with_projection_using_add_ports(self):
T1 = TransferMechanism()
I = InputPort(projections=[T1])
T2 = TransferMechanism()
T2.add_ports([I])
assert T2.input_ports[1].path_afferents[0].sender.owner is T1
def test_add_input_port_with_projection_in_mech_constructor(self):
T1 = TransferMechanism()
I = InputPort(projections=[T1])
T2 = TransferMechanism(input_ports=[I])
assert T2.input_ports[0].path_afferents[0].sender.owner is T1
def test_InputPort_mismatches_default(self):
with pytest.raises(MechanismError) as error_text:
i = InputPort(reference_value=[0, 0, 0])
TransferMechanism(default_variable=[0, 0], input_ports=[i])
assert mismatches_specified_default_variable_error_text in str(error_text.value)