text: import configparser
  from unittest import TestCase, mock
  
  from docker.models.containers import Container
  from docker_monitor.policy import ContainerPolicy, PolicyCheck
  from docker_monitor.checks import ActiveBuildCheck
  
  
  class ActiveBuildCheckTestCase(TestCase):
      def setUp(self):
          self.policy = ContainerPolicy(configparser.ConfigParser())
  
      def test_active_build_check(self):
          mock_container = mock.MagicMock(spec=Container)
          self.assertTrue(ActiveBuildCheck(self.policy, {})(mock_container))
  