text: from django.test import TestCase
  
  from .parser import RepoParser
  
  
  class ParserTest(TestCase):
      def test_top_languages(self):
          up = RepoParser('Boring-Mind')
          languages = up.get_top_languages('DjangoGirls1')
          self.assertEqual(len(languages), 5)
  
      def test_top_languages_repo_not_exist(self):
          up = RepoParser('Boring-Mind')
          languages = up.get_top_languages('DoesNotExist')
          self.assertEqual(len(languages), 0)
  
      def test_user_doesnt_exist(self):
          result = RepoParser.check_user_exists(
              'cbsajcnasxsla,lkjclncaksjlchnkans,knasc'
          )
          self.assertFalse(result)
  
      def test_user_exists(self):
          result = RepoParser.check_user_exists(
              'Boring-Mind'
          )
          self.assertTrue(result)
  