old_contents: import unittest
  
  from simlammps.config.domain import get_box
  
  
  class TestPairStyle(unittest.TestCase):
      """ Tests the domain config class
  
      """
      def test_missing_domain(self):
          with self.assertRaises(RuntimeError):
              get_box([])
  
          with self.assertRaises(RuntimeError):
              get_box([{}, {}])
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: import unittest
  
  from simlammps.config.domain import get_box
  
  
  class TestDomain(unittest.TestCase):
      """ Tests the domain config class
  
      """
      def test_missing_domain(self):
          with self.assertRaises(RuntimeError):
              get_box([])
  
          with self.assertRaises(RuntimeError):
              get_box([{}, {}])
  
  if __name__ == '__main__':
      unittest.main()
  
subject: Fix test name