old_contents: import unittest
  from limits import limits
  
  
  class GranularityTests(unittest.TestCase):
      def test_seconds_value(self):
          self.assertEqual(limits.RateLimitItemPerHour(1).get_expiry(), 60*60)
          self.assertEqual(limits.RateLimitItemPerMinute(1).get_expiry(), 60)
          self.assertEqual(limits.RateLimitItemPerSecond(1).get_expiry(), 1)
          self.assertEqual(limits.RateLimitItemPerDay(1).get_expiry(), 60*60*24)
          self.assertEqual(limits.RateLimitItemPerMonth(1).get_expiry(), 60*60*24*30)
          self.assertEqual(limits.RateLimitItemPerYear(1).get_expiry(), 60*60*24*30*12)
  
      def test_representation(self):
          self.assertTrue("1 per 1 hour" in str(limits.RateLimitItemPerHour(1)))
          self.assertTrue("1 per 1 minute" in str(limits.RateLimitItemPerMinute(1)))
          self.assertTrue("1 per 1 second" in str(limits.RateLimitItemPerSecond(1)))
          self.assertTrue("1 per 1 day" in str(limits.RateLimitItemPerDay(1)))
          self.assertTrue("1 per 1 month" in str(limits.RateLimitItemPerMonth(1)))
          self.assertTrue("1 per 1 year" in str(limits.RateLimitItemPerYear(1)))
  
new_contents: import unittest
  from limits import limits
  
  
  class GranularityTests(unittest.TestCase):
      def test_seconds_value(self):
          self.assertEqual(limits.RateLimitItemPerHour(1).get_expiry(), 60*60)
          self.assertEqual(limits.RateLimitItemPerMinute(1).get_expiry(), 60)
          self.assertEqual(limits.RateLimitItemPerSecond(1).get_expiry(), 1)
          self.assertEqual(limits.RateLimitItemPerDay(1).get_expiry(), 60*60*24)
          self.assertEqual(limits.RateLimitItemPerMonth(1).get_expiry(), 60*60*24*30)
          self.assertEqual(limits.RateLimitItemPerYear(1).get_expiry(), 60*60*24*30*12)
  
      def test_representation(self):
          self.assertTrue("1 per 1 hour" in str(limits.RateLimitItemPerHour(1)))
          self.assertTrue("1 per 1 minute" in str(limits.RateLimitItemPerMinute(1)))
          self.assertTrue("1 per 1 second" in str(limits.RateLimitItemPerSecond(1)))
          self.assertTrue("1 per 1 day" in str(limits.RateLimitItemPerDay(1)))
          self.assertTrue("1 per 1 month" in str(limits.RateLimitItemPerMonth(1)))
          self.assertTrue("1 per 1 year" in str(limits.RateLimitItemPerYear(1)))
  
      def test_comparison(self):
          self.assertTrue(limits.RateLimitItemPerSecond(1) < limits.RateLimitItemPerMinute(1))
          self.assertTrue(limits.RateLimitItemPerMinute(1) < limits.RateLimitItemPerHour(1))
          self.assertTrue(limits.RateLimitItemPerHour(1) < limits.RateLimitItemPerDay(1))
          self.assertTrue(limits.RateLimitItemPerDay(1) < limits.RateLimitItemPerMonth(1))
          self.assertTrue(limits.RateLimitItemPerMonth(1) < limits.RateLimitItemPerYear(1))
  
subject: add test for rate limit comparison (lt)