def test016():
    class SimpleNamespace(NamespaceModel):
        with_variables(Var("PING_TARGET", find_ip()),
                       Var("RUSER", "lxle1"),
                       Var("HOME", user_home))
        copy_target = Role("ping-target", host_ref=find_ip())
    ns = SimpleNamespace()
       
    class SimpleConfig(ConfigModel):
        copy = CopyFileTask("cpf", "!{HOME}/tmp/failure.txt",
                            task_role=SimpleNamespace.copy_target,
                            remote_user="!{RUSER}",
                            private_key_file=find_file("lxle1-dev-key"),
                            content="This shouldn't get written!\n",
                            )
    cfg = SimpleConfig()
    ea = AnsibleExecutionAgent(config_model_instance=cfg,
                               namespace_model_instance=ns,
                               no_delay=True)
    try:
        ea.perform_config()
        assert False, "This copy should not have succeeded"
    except ExecutionException, _:
        pass
Dispatcher of callbacks from auth providers, e.g.
dataset/ETHPy150Open haxsaw/actuator/src/tests/ansible_tests.py/test016--crossover with--dataset/ETHPy150Open ibagrak/algae/gae/libs/simpleauth/handler.py/SimpleAuthHandler._auth_callback