old_contents: from django.test import TestCase
  
  from model_mommy import mommy
  
  from ..models import Ayah
  
  
  class SuraModelTest(TestCase):
      def setUp(self):
          self.sura = mommy.make('quran_text.sura', name='Al-Fateha', index=1)
          self.ayah = mommy.make('quran_text.ayah', number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
  
      def test_str(self):
          self.assertEqual('Al-Fateha', str(self.sura))
  
  
  class AyahModelTest(TestCase):
      def setUp(self):
          self.sura = mommy.make('quran_text.sura', name='Al-Fateha', index=1)
          self.ayah = mommy.make('quran_text.ayah', number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
          mommy.make('quran_text.ayah', number=2, sura=self.sura,
                     text='الحمدلله رب العالمين')
  
      def test_str(self):
          self.assertEqual('1 - 1', str(self.ayah))
  
  
  class TestAyahModelManager(TestCase):
      def setUp(self):
          self.sura = mommy.make('quran_text.sura', name='Al-Fateha', index=1)
          self.ayah = mommy.make('quran_text.ayah', number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
          mommy.make('quran_text.ayah', number=2, sura=self.sura,
                     text='الحمدلله رب العالمين')
  
      def test_get_sura_text(self):
          ayaht = Ayah.objects.get_sura_text(self.sura.pk)
          self.assertIn(self.ayah, ayaht)
          self.assertEqual(2, ayaht.count())
  
      def test_get_sura_ayah(self):
          ayah = Ayah.objects.get_sura_ayah(self.sura.pk,
                                            self.ayah.pk)
          self.assertIn(self.ayah, ayah)
  
      def get_sura_ayat_range(self):
          ayaht = Ayah.objects.get_sura_ayah(self.sura.pk, 1, 2)
          self.assertIn(self.ayah, ayaht)
          self.assertEqual(2, ayaht.count())
  
new_contents: from django.test import TestCase
  
  from model_mommy import mommy
  
  from ..models import Ayah, Sura
  
  
  class TestSuraModel(TestCase):
      def setUp(self):
          self.sura = mommy.make(Sura, name='Al-Fateha', index=1)
          self.ayah = mommy.make(Ayah, number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
  
      def test_str(self):
          self.assertEqual('Al-Fateha', str(self.sura))
  
  
  class TestAyahModel(TestCase):
      def setUp(self):
          self.sura = mommy.make('quran_text.sura', name='Al-Fateha', index=1)
          self.ayah = mommy.make('quran_text.ayah', number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
          mommy.make('quran_text.ayah', number=2, sura=self.sura,
                     text='الحمدلله رب العالمين')
  
      def test_str(self):
          self.assertEqual('1 - 1', str(self.ayah))
  
  
  class TestAyahModelManager(TestCase):
      def setUp(self):
          self.sura = mommy.make('quran_text.sura', name='Al-Fateha', index=1)
          self.ayah = mommy.make('quran_text.ayah', number=1, sura=self.sura,
                                 text='بسم الله الرحمن الرحيم')
          mommy.make('quran_text.ayah', number=2, sura=self.sura,
                     text='الحمدلله رب العالمين')
  
      def test_get_sura_text(self):
          ayaht = Ayah.objects.get_sura_text(1)
          self.assertIn(self.ayah, ayaht)
          self.assertEqual(2, ayaht.count())
  
      def test_get_sura_ayah(self):
          ayah = Ayah.objects.get_sura_ayah(1, 1)
          self.assertIn(self.ayah, ayah)
  
      def test_get_sura_ayat_range(self):
          ayaht = Ayah.objects.get_sura_ayat_range(1, 1, 2)
          self.assertIn(self.ayah, ayaht)
          self.assertEqual(2, ayaht.count())
  
subject: Modify Quran text tests