Greetings.<div><br><div>I have to do a bunch of tests, where the initial set up is quite costly (launching ROS system and a bunch of nodes). Therefore, I don&#39;t want to set it up each time before a test (like with the standard setUp function). How can I make it so that the setUp function is called only once overall before ALL tests? ��(And aditionally, so that the tearDown function is called only once after all tests have run?)</div><div><br></div><div>Thank you all in advance,</div><div>best,</div></div>