text: import unittest
  from app.models import Vows
  
  class VowsTest(unittest.TestCase):
      '''
      Test class to test the behaviour of the vows class
      '''
      def setUp(self):
          '''
          Set up method that will run before every test
          '''
          self.new_vow = Vows("John Doe", "Vow title", "This is a sample of a vow")
  
      def test_instance(self):
          self.assertTrue(isinstance(self.new_vow, Vows))
  
  