Improve unit test coverage of dhcp agent scheduling

[Eugene Nikanorov]

Particularly, add unit tests for auto_schedule_networks

[Numan Siddique (numansiddique)]

Hi,
Are you working on this ? If not I can take it up
Thanks

[Ilya Shakhat (shakhat)]

Numan, you are welcome!

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/120804

[Numan Siddique (numansiddique)]

@watanable - I dont understand why you uploaded the same patch without any changes ?
Reassigning myself.

[Numan Siddique (numansiddique)]

@watanable - Oh ok, I think while making the dependency you might have done mistakes.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/120804
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=690f87977826f670aeea1f8165339e6c5af4f920
Submitter: Jenkins
Branch: master

commit 690f87977826f670aeea1f8165339e6c5af4f920
Author: Numan Siddique <email address hidden>
Date: Thu Sep 11 20:25:20 2014 +0530

    Improve test coverage of dhcp agent scheduling

    This patch adds few unit test cases and functional test cases
    for schedule() and auto_schedule_networks() of DHCP agent
    ChanceScheduler.

    Change-Id: I6ed7c48bcf5fc43d805c7898c7d6f019b6792e18
    Closes-bug: #1331516