class TestDatabaseBuilder(unittest.TestCase):
    def setUp(self):
        self.builder = DatabaseBuilder()

    def test_set_database_name(self):
        self.builder.set_database_name('saothusaonueh')
        self.assertEqual(self.builder.database_name, 'saothusaonueh')

    def test_set_database_name_retutrns_self(self):
        self.assertIsInstance(self.builder, 'DatabaseBuilder')
 def setUp(self):
     self.builder = DatabaseBuilder()