text: import unittest
  
  from locust.core import HttpLocust, Locust, TaskSet
  from locust import main
  from .testcases import LocustTestCase, WebserverTestCase
  
  class TestTaskSet(LocustTestCase):
      def test_is_locust(self):
          self.assertFalse(main.is_locust(("Locust", Locust)))
          self.assertFalse(main.is_locust(("HttpLocust", HttpLocust)))
          self.assertFalse(main.is_locust(("random_dict", {})))
          self.assertFalse(main.is_locust(("random_list", [])))
          
          class MyTaskSet(TaskSet):
              pass
          
          class MyHttpLocust(HttpLocust):
              task_set = MyTaskSet
          
          class MyLocust(Locust):
              task_set = MyTaskSet
          
          self.assertTrue(main.is_locust(("MyHttpLocust", MyHttpLocust)))
          self.assertTrue(main.is_locust(("MyLocust", MyLocust)))
          
          class ThriftLocust(Locust):
              pass
          
          self.assertFalse(main.is_locust(("ThriftLocust", ThriftLocust)))
  