old_contents: 
  import unittest
  from numba import njit
  
  
  class TestModule(unittest.TestCase):
      def test_module_not_in_namespace(self):
          """ Test of trying to run a compiled function
          where the module which the function is being compiled
          doesn't exist in the namespace.
          """
          filename = 'test.py'
          name = 'mypackage'
          code = """
  def f(x):
      return x
  """
  
          objs = dict(__file__=filename, __name__=name)
          compiled = compile(code, filename, 'exec')
          exec(compiled, objs)
  
          compiled_f = njit(objs['f'])
          with self.assertRaises(ModuleNotFoundError):
              compiled_f(0)
  
  
  if __name__ == '__main__':
      unittest.main()
  
new_contents: 
  import unittest
  from numba import njit
  
  
  class TestModule(unittest.TestCase):
      def test_module_not_in_namespace(self):
          """ Test of trying to run a compiled function
          where the module which the function is being compiled
          doesn't exist in the namespace.
          """
          filename = 'test.py'
          name = 'mypackage'
          code = """
  def f(x):
      return x
  """
  
          objs = dict(__file__=filename, __name__=name)
          compiled = compile(code, filename, 'exec')
          exec(compiled, objs)
  
          compiled_f = njit(objs['f'])
          with self.assertRaises(ModuleNotFoundError) as raises:
              compiled_f(0)
          msg = "can't compile f: import of module mypackage failed"
          self.assertIn(msg, str(raises.exception))
  
  
  if __name__ == '__main__':
      unittest.main()
  
subject: fix test_funcdesc unittest