def test_createSpread(self):
    start = [0, 0, 0]
    spread = S.createSpread(start)

    self.assertTrue(len(spread) > 4)

    likeStart = 0
    for s in spread:
      if s == start:
        likeStart += 1
      else:
        self.assertNotEqual(s, start)
        self.assertNotEqual(S.totalDistance(s), 0)

    self.assertEqual(likeStart, 1)
 def test_totalDistance(self):
   self.assertEqual(S.totalDistance([1, 1, 1]), 3)
   self.assertTrue(S.equalish(S.totalDistance([1, 2, 3]), 0.45))