text: from unittest import TestCase
  from imgprocalgs import application
  
  
  class TestApplication(TestCase):
      def test_validate_algorithm_name(self):
          with self.assertRaises(Exception) as context:
              application.validate_algorithm_name("NOT_FOUND")
  
          self.assertTrue('Algorithm with name NOT_FOUND is not defined!' in str(context.exception))
          self.assertTrue(application.validate_algorithm_name('sepia'))
          self.assertTrue(application.validate_algorithm_name('negative'))
          self.assertTrue(application.validate_algorithm_name('nearest_neighbour'))
          self.assertTrue(application.validate_algorithm_name('bilinear_interpolation'))
          self.assertTrue(application.validate_algorithm_name('bicubic_interpolation'))
  