bluechips/tests/lib/totals.py

   1 from unittest import TestCase
   2 from bluechips.lib import totals
   3
   4 class TestReorderingSettle(TestCase):
   5     def test(self):
   6         """
   7         Test that the number of transfers is actually minimized.
   8
   9         Taken from a real-world situation, we discovered that failing
  10         to re-order the debt lists after every transfer could lead to
  11         extra, unnecessary transfers.
  12         """
  13         self.assertEqual(len(totals.settle({'Alice': 100,
  14                                             'Bob': -85,
  15                                             'Charlie': 35,
  16                                             'Dave': -35,
  17                                             'Eve': -15})),
  18                          3)