Comment 19 for bug 1561046

Reviewed: https://review.openstack.org/299784
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=9d483ee8166b4bed9b1c0d3e78f951a2e22a6f6a
Submitter: Jenkins
Branch: stable/kilo

commit 9d483ee8166b4bed9b1c0d3e78f951a2e22a6f6a
Author: Hynek Mlnarik <email address hidden>
Date: Wed Mar 30 10:44:09 2016 +0200

    Refactor and fix dummy process fixture

    Extracting the test fixture that creates a new process and leaves it
    running for a given amount of time into helpers where other fixtures for
    functional tests live. This both keeps the fixtures at one place and
    increases visibility of the fixture so that it can be reused in other
    tests. At the same time, the fixture is fixed as the original code
    omitted starting the process.

    Compared to upstream commit, the fixture in test_keepalived was adjusted
    for kilo's version of fixtures package.

    Conflicts:
        neutron/tests/functional/agent/linux/helpers.py
        neutron/tests/functional/agent/linux/test_keepalived.py

    Change-Id: I97aeb8d1d5773ef3d59e8f908aea34ccceb38378
    Related-Bug: 1561046
    (cherry picked from commit 2690eed19a749fb1b50bb38f3d01fce0f1497f39)