Andela - Python D2 Software Developer

min_swaps.py

def minimum_swaps(ratings):
    if sorted(ratings, reverse=True) == ratings:
       return 0
    swaps = 1
    while sorted(ratings, reverse=True) != sorter(ratings):
        swaps += 1
    return swaps

def sorter(array):

    for i in sorted(range(len(array)), reverse=True):    
        comp = array[:i]
        if len(comp) > 0:
            mini = min(comp)

        if mini < array[i]:
            index = array.index(mini)

            array[i], array[index] = array[index], array[i]
            return array

    return array

test.py

import unittest
class Test(unittest.TestCase):
  def test_minimum_swaps_should_handle_single_swap(self):
    self.assertEqual(minimum_swaps([3,1,2]), 1)
  def test_minimum_swaps_should_handle_multiple_swaps(self):
    self.assertEqual(minimum_swaps([3,1,2,4]), 2)