def test_centrality_to_position_without_ties():
	pos_map = ig.centrality_to_position(ret_val, ret_sort)
	assert pos_map[4] == 1.0
	assert pos_map[1] == 2.0
	assert pos_map[0] == 3.0
	assert pos_map[3] == 4.0
	assert pos_map[2] == 5.0
def test_centrality_to_position_with_ties():
	pos_map = ig.centrality_to_position(ret_val_ties, ret_sort_ties)
	assert pos_map[4] == 1.0
	assert pos_map[1] == 2.5
	assert pos_map[0] == 2.5
	assert pos_map[3] == 4.5
	assert pos_map[2] == 4.5
	assert pos_map[5] == 6.0