@Test
public void cleanupFailedNodesEmpty() throws KaramelException {

  Map<NodeMetadata, Throwable> failedNodes = new HashMap<>();
  NovaLauncher novaLauncher = new NovaLauncher(novaContext, sshKeyPair);
  boolean cleanupSuccessful = novaLauncher.cleanupFailedNodes(failedNodes);
  assertTrue(cleanupSuccessful);
}