old_contents: from django.test import TestCase
  from working_waterfronts.working_waterfronts_api.models import Hazard
  from django.contrib.gis.db import models
  
  
  class HazardTestCase(TestCase):
  
      def setUp(self):
          self.expected_fields = {
              'name': models.TextField,
              'description': models.TextField,
              'created': models.DateTimeField,
              'modified': models.DateTimeField,
              'id': models.AutoField
          }
  
      def test_fields_exist(self):
          model = models.get_model('working_waterfronts_api', 'Hazard')
          for field, field_type in self.expected_fields.items():
              self.assertEqual(
                  field_type, type(model._meta.get_field_by_name(field)[0]))
  
      def test_no_additional_fields(self):
          fields = Hazard._meta.get_all_field_names()
          self.assertEqual(sorted(fields), sorted(self.expected_fields.keys()))
  
      def test_created_modified_fields(self):
          self.assertTrue(Hazard._meta.get_field('modified').auto_now)
          self.assertTrue(Hazard._meta.get_field('created').auto_now_add)
  
      def test___unicode___method(self):
          assert hasattr(Hazard, '__unicode__'), "No __unicode__ method found"
new_contents: from django.test import TestCase
  from working_waterfronts.working_waterfronts_api.models import Hazard
  from django.contrib.gis.db import models
  
  
  class HazardTestCase(TestCase):
  
      def setUp(self):
          self.expected_fields = {
              'name': models.TextField,
              'description': models.TextField,
              'created': models.DateTimeField,
              'modified': models.DateTimeField,
              'pointofinterests': models.ManyToManyField,
              'id': models.AutoField
          }
  
      def test_fields_exist(self):
          model = models.get_model('working_waterfronts_api', 'Hazard')
          for field, field_type in self.expected_fields.items():
              self.assertEqual(
                  field_type, type(model._meta.get_field_by_name(field)[0]))
  
      def test_no_additional_fields(self):
          fields = Hazard._meta.get_all_field_names()
          self.assertEqual(sorted(fields), sorted(self.expected_fields.keys()))
  
      def test_created_modified_fields(self):
          self.assertTrue(Hazard._meta.get_field('modified').auto_now)
          self.assertTrue(Hazard._meta.get_field('created').auto_now_add)
  
      def test___unicode___method(self):
          assert hasattr(Hazard, '__unicode__'), "No __unicode__ method found"
subject: add POI m2m to hazard tests