def test_flow_parameters():
f = Flow(name="test")
x = Parameter("x")
y = Parameter("y", default=1)
f.add_task(x)
f.add_task(y)
assert f.parameters() == {x, y}
def test_raise_error_if_two_parameters_have_same_name():
f = Flow(name="test")
f.add_task(Parameter("x"))
assert "x" in {p.name for p in f.parameters()}
with pytest.raises(ValueError):
f.add_task(Parameter("x"))
