tox cover testing is failing due to a missing entry in tox.ini

[Anthony Dodd]

`tox -e cover` is failing due to a missing entry in keystone's tox.ini file.
In tox.ini the following code appears:
'''
[testenv:cover]
setenv = NOSE_WITH_COVERAGE=1
         NOSE_COVER_HTML=1
         NOSE_COVER_HTML_DIR={toxinidir}/cover
'''

Adding 'VIRTUAL_ENV={envdir}' to the setenv mapping, as shown below, has resolved the issue on my machine.
'''
[testenv:cover]
setenv = VIRTUAL_ENV={envdir}
         NOSE_WITH_COVERAGE=1
         NOSE_COVER_HTML=1
         NOSE_COVER_HTML_DIR={toxinidir}/cover
'''

[Clark Boylan (cboylan)]

This happened when I patched tox.ini to make tox -ecover work for jenkins and ended up just breaking it for everyone :(

[Anthony Dodd (thedodd)]

Thanks for the confirmation Clark! I will fix the issue right now. The changes should be ready for review shortly.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/34766

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/34766
Committed: http://github.com/openstack/keystone/commit/a8f2512f2511a3bce314e90bfb46d7083cb998da
Submitter: Jenkins
Branch: master

commit a8f2512f2511a3bce314e90bfb46d7083cb998da
Author: Anthony Dodd <email address hidden>
Date: Thu Jun 27 11:24:45 2013 -0500

    `tox -ecover` failure. Missing entry in tox.ini

    `tox -ecover` is failing due to a missing entry in keystone's tox.ini file.
    In tox.ini the following code appears:
    '''
    [testenv:cover]
    setenv = NOSE_WITH_COVERAGE=1
             NOSE_COVER_HTML=1
             NOSE_COVER_HTML_DIR={toxinidir}/cover
    '''

    Adding 'VIRTUAL_ENV={envdir}' to the setenv mapping, as shown below,
    has resolved the issue on my machine.
    '''
    [testenv:cover]
    setenv = VIRTUAL_ENV={envdir}
             NOSE_WITH_COVERAGE=1
             NOSE_COVER_HTML=1
             NOSE_COVER_HTML_DIR={toxinidir}/cover
    '''

    Change-Id: I3550ac61cdc6389dd239c5ad319d881519b3543d
    Fixes: bug #1195371