text: import unittest
  from qual_id.pattern import Pattern
  from unittest.mock import MagicMock
  
  
  class TestPattern(unittest.TestCase):
      def setUp(self):
          self.pattern = None
  
      def test__get_category_options__returns_non_empty_list(self):
          self.pattern = Pattern("")
          self.assertGreater(len(self.pattern.get_category_options()), 0)
  
      def test__get_category_options__returns_alphabetically_ordered_list(self):
          self.pattern = Pattern("")
          categories = self.pattern.get_category_options()
          error_message = "categories should be listed in alphabetical order"
          self.assertEqual(categories, sorted(categories), error_message)
  
      def test__has_acceptable_categories_length__valid_number_of_categories_returns_true(
          self,
      ):
          self.pattern = Pattern("test_pattern")
          categories = self.pattern.get_category_options()
  
          self.pattern = Pattern("-".join([categories[0], categories[1]]))
          self.assertTrue(self.pattern.has_acceptable_categories_length())
  
      def test__get_nonexistent_categories__nonempty_invalid_category_list__returns_false(
          self,
      ):
          self.pattern = Pattern("invalid_pattern")
          self.assertTrue(len(self.pattern.get_nonexistent_categories()) > 0)
  
      def test__has_acceptable_categories_length__pattern_with_more_than_5_categories__returns_false(
          self,
      ):
          self.pattern = Pattern("test_pattern")
          categories = self.pattern.get_category_options()
  
          self.pattern = Pattern("-".join([categories[0]] * 6))
          self.assertFalse(self.pattern.has_acceptable_categories_length())
  
      def test__has_acceptable_categories_length__empty_pattern__returns_false(self):
          self.pattern = Pattern("")
          self.assertFalse(self.pattern.has_acceptable_categories_length())
  
      def test__get_categories__pattern_from_categories__returns_array_of_correct_length(
          self,
      ):
          self.pattern = Pattern("test_pattern")
          categories = self.pattern.get_category_options()
  
          self.pattern = Pattern("-".join([categories[0], categories[1]]))
          categories = self.pattern.get_categories()
          self.assertEqual(len(categories), 2)
          [self.assertNotEqual(category, None) for category in categories]
  
      def test__get_categories__pattern_with_randoms__returns_array_of_correct_length(
          self,
      ):
          self.pattern = Pattern("-".join(["random"] * 2))
          categories = self.pattern.get_categories()
          self.assertEqual(len(categories), 2)
          [self.assertNotEqual(category, None) for category in categories]
  
  
  if __name__ == "__main__":  # pragma: no cover
      unittest.main()
  