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"""
B-ASIC test suite for Inputport
"""
import pytest
from b_asic import InputPort, OutputPort
from b_asic import Signal
@pytest.fixture
def inp_port():
return InputPort(0, None)
@pytest.fixture
def out_port():
return OutputPort(0, None)
@pytest.fixture
def out_port2():
return OutputPort(1, None)
@pytest.fixture
def dangling_sig():
return Signal()
@pytest.fixture
def s_w_source():
out_port = OutputPort(0, None)
return Signal(source=out_port)
@pytest.fixture
def sig_with_dest():
inp_port = InputPort(0, None)
return Signal(destination=out_port)
@pytest.fixture
def connected_sig():
out_port = OutputPort(0, None)
inp_port = InputPort(0, None)
return Signal(source=out_port, destination=inp_port)
def test_connect_then_disconnect(inp_port, out_port):
"""Test connect unused port to port."""
s1 = inp_port.connect(out_port)
assert inp_port.connected_ports == [out_port]
assert out_port.connected_ports == [inp_port]
assert inp_port.signals == [s1]
assert out_port.signals == [s1]
assert s1.source is out_port
assert s1.destination is inp_port
inp_port.remove_signal(s1)
assert inp_port.connected_ports == []
assert out_port.connected_ports == []
assert inp_port.signals == []
assert out_port.signals == [s1]
assert s1.source is out_port
assert s1.destination is None
def test_connect_used_port_to_new_port(inp_port, out_port, out_port2):
"""Does connecting multiple ports to an inputport throw error?"""
inp_port.connect(out_port)
with pytest.raises(AssertionError):
inp_port.connect(out_port2)
def test_add_signal_then_disconnect(inp_port, s_w_source):
"""Can signal be connected then disconnected properly?"""
inp_port.add_signal(s_w_source)
assert inp_port.connected_ports == [s_w_source.source]
assert s_w_source.source.connected_ports == [inp_port]
assert inp_port.signals == [s_w_source]
assert s_w_source.source.signals == [s_w_source]
assert s_w_source.destination is inp_port
inp_port.remove_signal(s_w_source)
assert inp_port.connected_ports == []
assert s_w_source.source.connected_ports == []
assert inp_port.signals == []
assert s_w_source.source.signals == [s_w_source]
assert s_w_source.destination is None
def test_connect_then_disconnect(inp_port, out_port):
"""Can port be connected and then disconnected properly?"""
inp_port.connect(out_port)
inp_port.disconnect(out_port)
print("outport signals:", out_port.signals, "count:", out_port.signal_count())
assert inp_port.signal_count() == 1
assert len(inp_port.connected_ports) == 0
assert out_port.signal_count() == 0