def test_mul_inconsistent_dimension(self):
"""Multiply two transfer function matrices of incompatible sizes."""
sys1 = TransferFunction([[[1., 2.], [4., 5.]], [[2., 5.], [4., 3.]]],
[[[6., 2.], [4., 1.]], [[6., 7.], [2., 4.]]])
sys2 = TransferFunction([[[1.]], [[2.]], [[3.]]],
[[[4.]], [[5.]], [[6.]]])
with pytest.raises(ValueError):
sys1.__mul__(sys2)
with pytest.raises(ValueError):
sys2.__mul__(sys1)
with pytest.raises(ValueError):
sys1.__rmul__(sys2)
with pytest.raises(ValueError):
sys2.__rmul__(sys1)
def test_size_mismatch(self):
"""Test size mismacht"""
sys1 = ss2tf(rss(2, 2, 2))
# Different number of inputs
sys2 = ss2tf(rss(3, 1, 2))
with pytest.raises(ValueError):
TransferFunction.__add__(sys1, sys2)
# Different number of outputs
sys2 = ss2tf(rss(3, 2, 1))
with pytest.raises(ValueError):
TransferFunction.__add__(sys1, sys2)
# Inputs and outputs don't match
with pytest.raises(ValueError):
TransferFunction.__mul__(sys2, sys1)
# Feedback mismatch (MIMO not implemented)
with pytest.raises(NotImplementedError):
TransferFunction.feedback(sys2, sys1)
