text: import unittest
  from mock.mock import Mock, patch
  
  from govini_site_crawler.dod.operations.dod_web_crawler import DoDWebCrawler
  
  
  class DoDWebCrawlerUnitTest(unittest.TestCase):
  
      @classmethod
      def setUpClass(cls):
          cls.crawler = DoDWebCrawler()
  
      @patch('govini_site_crawler.common.operations.web_crawler.webdriver.Chrome.get')
      def test_retrieve_website(self, mock_get):
          mock_get.return_value = Mock()
  
          self.crawler.retrieve_website()
  
          self.assertTrue(mock_get.called)
  
      @patch('govini_site_crawler.common.operations.web_crawler.webdriver.Chrome.find_element_by_id')
      def test_retrieve_element(self, mock_call):
          mock_call.return_value = Mock()
  
          self.crawler.retrieve_element("fake_id")
  
          self.assertTrue(mock_call.called)
  
      @patch('govini_site_crawler.common.operations.web_crawler.webdriver.remote.webelement.WebElement.click')
      @patch('govini_site_crawler.common.operations.web_crawler.webdriver.remote.webelement.WebElement.send_keys')
      def test_element_interaction(self, mock_call_a, mock_call_b):
          mock_call_a.return_value = Mock()
          mock_call_b.return_value = Mock()
  
          obj1 = Mock()
          obj2 = Mock()
  
          DoDWebCrawler.element_interaction(obj1, obj2)
  
          obj1.send_keys.assert_called()
          obj2.click.assert_called()
  
      @patch('govini_site_crawler.common.operations.web_crawler.webdriver.Chrome.close')
      def test_close_browser(self, mock_call):
          mock_call.return_value = Mock()
  
          self.crawler.close_browser()
  
          self.assertTrue(mock_call.called)