def TestExclStorSingleNode(node):
  for action in ["add", "modify"]:
    for value in (True, False, "default"):
      AssertCommand(_BuildSetESCmd(action, value, node.primary), fail=True)
gnt-node add/modify cannot change the exclusive_storage flag.
dataset/ETHPy150Open ganeti/ganeti/qa/qa_node.py/TestExclStorSingleNode