text: import os
  from unittest import TestCase
  
  
  class TestLoadWordsModel(TestCase):
      def test_load_model(self):
          import booksread
          is_loaded = booksread.load()
          self.assertTrue(is_loaded)
      
      def test_WORDS_MODEL_not_loaded(self):
          from collections import Counter
          from booksread import models
  
          self.assertFalse(len(models.WORDS_MODEL.keys())> 0)
  
      def test_WORD_PAIRS_MODEL_not_loaded(self):
          from booksread import models
          self.assertFalse(len(models.WORD_TUPLES_MODEL.keys()) > 0)
      