We pass node in the method instead of list of nodes

[Vasily Gorin]

There is mistake in the test shut_down_mongo_node.shut_down_mongo_node. We should pass list of nodes to functions warm_start and warm_shutdown.

Traceback (most recent call last):
  File "/usr/lib/python2.7/unittest/case.py", line 331, in run
    testMethod()
  File "/usr/lib/python2.7/unittest/case.py", line 1043, in runTest
    self._testFunc()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 296, in testng_method_mistake_capture_func
    compatability.capture_type_error(s_func)
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/compatability/exceptions_2_6.py", line 27, in capture_type_error
    func()
  File "/home/jenkins/venv-nailgun-tests-2.9/local/lib/python2.7/site-packages/proboscis/case.py", line 350, in func
    func(test_case.state.get_state())
  File "/home/jenkins/workspace/8.0.acceptance.ubuntu.failover_group_mongo/fuelweb_test/tests/tests_strength/test_failover_mongo.py", line 222, in shut_down_mongo_node
    self.fuel_web.warm_shutdown_nodes(target_node)
  File "/home/jenkins/workspace/8.0.acceptance.ubuntu.failover_group_mongo/fuelweb_test/models/fuel_web_client.py", line 1683, in warm_shutdown_nodes
    [n.name for n in devops_nodes])
TypeError: 'Node' object is not iterable

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/281716

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/8.0
Review: https://review.openstack.org/281718

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/281716
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=02e0901893d90d5d78f59fd5f627d5792d3d8893
Submitter: Jenkins
Branch: master

commit 02e0901893d90d5d78f59fd5f627d5792d3d8893
Author: Vasily Gorin <email address hidden>
Date: Thu Feb 18 12:32:54 2016 +0300

    Fix mistake in shut_down_mongo_node

    Instead of node we should pass to the functions list of nodes

    Change-Id: I4667d3b8da341407a703888fdab76cf9d158be1e
    Closes-Bug: #1546932

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/281718
Committed: https://git.openstack.org/cgit/openstack/fuel-qa/commit/?id=8c08d740effd95e470030bd566607e07f9dd8992
Submitter: Jenkins
Branch: stable/8.0

commit 8c08d740effd95e470030bd566607e07f9dd8992
Author: Vasily Gorin <email address hidden>
Date: Thu Feb 18 12:32:54 2016 +0300

    Fix mistake in shut_down_mongo_node

    Instead of node we should pass to the functions list of nodes

    Change-Id: I4667d3b8da341407a703888fdab76cf9d158be1e
    Closes-Bug: #1546932

[Artem Panchenko (apanchenko-8)]

Test 'shut_down_mongo_node' passed on the latest release acceptance run (version 7_failover_group_mongo_on_8.0-570)