old_contents: import unittest
  from src.dojo import Dojo
  
  
  class TestCreateRoom (unittest.TestCase):
  
      def setUp(self):
          self.dojo = Dojo()
          self.test_office = self.dojo.create_room("office", "test")
          self.test_living_space = self.dojo.create_room("living_space", "test living space")
  
      def test_create_room_successfully(self):
          initial_room_count = len(self.dojo.all_rooms)
          blue_office = self.dojo.create_room("office", "Blue")
          self.assertTrue(blue_office)
          new_room_count = len(self.dojo.all_rooms)
          self.assertEqual(new_room_count - initial_room_count, 1)
  
      def test_create_rooms_successfully(self):
          initial_room_count = len(self.dojo.all_rooms)
          offices = self.dojo.create_room("office", "Blue", "Black", "Brown")
          self.assertTrue(offices)
          new_room_count = len(self.dojo.all_rooms)
          self.assertEqual(new_room_count - initial_room_count, 3)
new_contents: import unittest
  from src.dojo import Dojo
  
  
  class TestCreateRoom (unittest.TestCase):
  
      def setUp(self):
          self.dojo = Dojo()
          self.test_office = self.dojo.create_room("office", "test")
          self.test_living_space = self.dojo.create_room("living_space", "test living space")
  
      def test_create_room_successfully(self):
          initial_room_count = len(self.dojo.all_rooms)
          blue_office = self.dojo.create_room("office", "Blue")
          self.assertTrue(blue_office)
          new_room_count = len(self.dojo.all_rooms)
          self.assertEqual(new_room_count - initial_room_count, 1)
  
      def test_create_rooms_successfully(self):
          initial_room_count = len(self.dojo.all_rooms)
          offices = self.dojo.create_room("office", "Blue", "Black", "Brown")
          self.assertTrue(offices)
          new_room_count = len(self.dojo.all_rooms)
          self.assertEqual(new_room_count - initial_room_count, 3)
  
      def test_addition_of_duplicate_room_names(self):
          pass
subject: Add test for duplicate rooms