def METHOD_NAME(self):
    # Add an experiment from outside of the Session root
    expFile = Path(utils.TESTS_DATA_PATH) / "test_session" / "outside_root" / "externalExp.psyexp"
    self.sess.addExperiment(expFile, key="externalExp")
    # Check that file is copied
    newExpFile = self.sess.root / "outside_root" / "externalExp.psyexp"
    assert newExpFile.is_file()
    # Check that newly added experiment still runs
    self.sess.runExperiment("externalExp")
    # Remove external experiment
    shutil.rmtree(str(newExpFile.parent))
    del self.sess.experiments['externalExp']