def test_merge_efm_groups_V_shape(self):
N = np.array([[-1, 0, -1, 0],
[1, -1, 0, 0],
[0, 1, 0, 1],
[0, 0, 1, -1]])
V = np.array([[1, 0, 1],
[1, 0, 0],
[0, 10, 0],
[0, 10, 0]])
efm_id2i = {0: 0, 1: 1, 2: 2}
groups = get_efm_groups_based_on_boundary_metabolites(N, V, efm_id2i)
V_new, new_efm_id2i, efm_id2gr_id = merge_efm_groups(V, groups, efm_id2i)
self.assertTupleEqual((4, 2), V_new.shape,
'Was supposed to get 4x2 V, got %s' % [str(it) for it in V_new.shape])
def test_merge_efm_groups_V_content_2(self):
N = np.array([[-1, 0, -1, 0],
[1, -1, 0, 0],
[0, 1, 0, 1],
[0, 0, 1, -1]])
V = np.array([[1, 0, 1],
[1, 0, 0],
[0, 10, 0],
[0, 10, 0]])
efm_id2i = {0: 0, 1: 1, 2: 2}
groups = get_efm_groups_based_on_boundary_metabolites(N, V, efm_id2i)
V_new, new_efm_id2i, efm_id2gr_id = merge_efm_groups(V, groups, efm_id2i)
new_efm_index = new_efm_id2i[efm_id2gr_id[0]]
r2 = V_new[2, new_efm_index] / V_new[3, new_efm_index]
self.assertEqual(1, r2, 'Ratio r3/r4 in the new EFM was supposed to be 1, got %d' % r2)
