def test_change_io(self):
""" Test set_io"""
ins = [dict(name="in1"), dict(name="in2")]
outs = [dict(name="out1"), dict(name="out2")]
sg = CompositeNode(ins, outs)
assert sg.get_nb_input() == 2
assert sg.get_nb_output() == 2
ins = [dict(name="in1")]
outs = [dict(name="out1"), dict(name="out2"), dict(name="out3")]
sg.set_io(ins, outs)
assert sg.get_nb_input() == 1
assert sg.get_nb_output() == 3
