def test_reduction_bor(self):
seq = [[0, 1, 2, 3], [0, 1, 3, 2], [0, 2, 1, 3]]
mc = Comparison(*[Contour(s) for s in seq])
reduced = [[Contour([0, 1]), 3], [Contour([0, 2, 1]), 3], [Contour([0, 2, 1, 3]), 3]]
self.assertEqual(mc.reduction_bor().as_matrix().tolist(), reduced)
