def test_equals_2(self):
     self.assertEqual(ranks([2]), [1])
 def test_equals(self):
     self.assertEqual(ranks([]), [])
 def test_equals_4(self):
     self.assertEqual(ranks([9, 3, 6, 10]), [2, 4, 3, 1])
 def test_equals_5(self):
     self.assertEqual(ranks([3, 3, 3, 3, 3, 5, 1]), [2, 2, 2, 2, 2, 1, 7])
 def test_equals_3(self):
     self.assertEqual(ranks([2, 2]), [1, 1])