TestNecAgentMain.test_main kills test runner

[Roman Bogorodskiy]

Test TestNecAgentMain.test_main() calls main() of the nec_agent which in its order calls sys.exit(0). Since the test doesn't handle it in any way, it kills test runner and reports testr that tests are passed.

Output of "tox -epy27 quantum.tests.unit.nec.test_nec_agent"

Ran 6 (-2) tests in 0.062s (-0.009s)
PASSED (id=29)

Without sys.exit() call the same command results in:

Ran 8 (+2) tests in 0.072s (+0.010s)
PASSED (id=30)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/33479
Committed: http://github.com/openstack/quantum/commit/381cb1c4e4b5122a8afae67ad4cbeebcb39cbf83
Submitter: Jenkins
Branch: master

commit 381cb1c4e4b5122a8afae67ad4cbeebcb39cbf83
Author: Roman Bogorodskiy <email address hidden>
Date: Tue Jun 18 13:12:27 2013 -0400

    Fix TestNecAgentMain not to call sys.exit()

    test_main() was calling sys.exit() killing test running
    and not allowing tests to complete in a proper way.

    Drop explicit sys.exit() call from net agent's main() and
    fix outdated mocks in test_main().

    Fixes bug #1192270

    Change-Id: Iea8d5508f73eb9144e452de3305f2dec4c2a319c