import unittest

class Test_Threshold_Upper(unittest.TestCase) :
   def test(self) :
      import threshold_upper
      tl = threshold_upper.Threshold_Upper(5)

      self.assertTrue(tl.can_breach)

      self.assertTrue(tl.exceeds(7))
      self.assertFalse(tl.exceeds(3))

if __name__ == "__main__" :
   unittest.main()