old_contents: """Sample unittests."""
  
  import unittest2 as unittest
  
  from domain_models import model
  from domain_models import fields
  
  
  class User(model.DomainModel):
      """Example user domain model."""
  
      id = fields.Int()
      email = fields.String()
      first_name = fields.Unicode()
      last_name = fields.Unicode()
      gender = fields.String()
      birth_date = fields.String()
  
      __view_key__ = [id, email]
      __unique_key__ = id
  
  
  class SampleTests(unittest.TestCase):
      """Sample tests tests."""
  
      def test_set_and_get_attrs(self):
          """Test setting and getting of domain model attributes."""
          user = User()
          user.id = 1
          user.email = 'example@example.com'
          user.first_name = 'John'
          user.last_name = 'Smith'
          user.gender = 'male'
          user.birth_date = '05/04/1988'
  
          self.assertEqual(user.id, 1)
          self.assertEqual(user.email, 'example@example.com')
          self.assertEqual(user.first_name, unicode('John'))
          self.assertEqual(user.last_name, unicode('Smith'))
          self.assertEqual(user.gender, 'male')
          self.assertEqual(user.birth_date, '05/04/1988')
  
new_contents: """Sample unittests."""
  
  import six
  import unittest2 as unittest
  
  from domain_models import model
  from domain_models import fields
  
  
  class User(model.DomainModel):
      """Example user domain model."""
  
      id = fields.Int()
      email = fields.String()
      first_name = fields.Unicode()
      last_name = fields.Unicode()
      gender = fields.String()
      birth_date = fields.String()
  
      __view_key__ = [id, email]
      __unique_key__ = id
  
  
  class SampleTests(unittest.TestCase):
      """Sample tests tests."""
  
      def test_set_and_get_attrs(self):
          """Test setting and getting of domain model attributes."""
          user = User()
          user.id = 1
          user.email = 'example@example.com'
          user.first_name = 'John'
          user.last_name = 'Smith'
          user.gender = 'male'
          user.birth_date = '05/04/1988'
  
          self.assertEqual(user.id, 1)
          self.assertEqual(user.email, 'example@example.com')
          self.assertEqual(user.first_name, six.u('John'))
          self.assertEqual(user.last_name, six.u('Smith'))
          self.assertEqual(user.gender, 'male')
          self.assertEqual(user.birth_date, '05/04/1988')
  
subject: Fix unicode in tests