availability zone output in instance resource does not get resolved

[Sirushti Murugesan]

The availability zone output attribute of the instance resource is empty if no input is provided by the user for that property. Instead of relying on solely user input to determine the value for this, this attribute must be resolved to an appropriate value.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/103020

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/103020
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=db01dc264db55e6f6c4d6283f6534a148c3ede6c
Submitter: Jenkins
Branch: master

commit db01dc264db55e6f6c4d6283f6534a148c3ede6c
Author: Sirushti Murugesan <email address hidden>
Date: Fri Jun 27 11:05:41 2014 +0530

    Resolve AWS::EC2::Instance AZ output to a value if not specified

    The availability zone output attribute of the instance resource is
    empty if no input is provided by the user for that property.
    Instead of relying on solely user input to determine the value for this,
    this attribute must be resolved to an appropriate value.

    The VolumeTest.test_volume_default_az test case had an unmocked function
    which is now mocked here to successfuly test this feature.

    Change-Id: Iab2cf1f3da0261c30b755d0b87ebb693644a4a29
    Closes-Bug: #1334519