old_contents: import gandi_ddns as script
  
  def test_get_ip():
      assert script.get_ip() == 'test-toto'
new_contents: import gandi_ddns as script
  import socket
  
  def test_get_ip():
      assert script.get_ip() == socket.gethostbyname(socket.gethostname())
subject: Update IP for test