./run_tests.sh raises error for glance_store in debug mode

[Ankit Agrawal]

When we try to run glance_store test suit in debug mode it raises error “ImportError: Start directory is not importable” with the following stack trace

$ ./run_tests.sh -d

Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/openstack/glance_store/glance_store/.venv/lib/python2.7/site-packages/testtools/run.py", line 535, in <module>
    main(sys.argv, sys.stdout)
  File "/home/openstack/glance_store/glance_store/.venv/lib/python2.7/site-packages/testtools/run.py", line 532, in main
    stdout=stdout)
  File "/home/openstack/glance_store/glance_store/.venv/lib/python2.7/site-packages/testtools/run.py", line 218, in __init__
    self.parseArgs(argv)
  File "/home/openstack/glance_store/glance_store/.venv/lib/python2.7/site-packages/testtools/run.py", line 257, in parseArgs
    self._do_discovery(argv[2:])
  File "/home/openstack/glance_store/glance_store/.venv/lib/python2.7/site-packages/testtools/run.py", line 376, in _do_discovery
    loaded = loader.discover(start_dir, pattern, top_level_dir)
  File "/usr/lib/python2.7/unittest/loader.py", line 204, in discover
    raise ImportError('Start directory is not importable: %r' % start_dir)
ImportError: Start directory is not importable: './glance/tests'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/129539

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/129539
Committed: https://git.openstack.org/cgit/openstack/glance_store/commit/?id=6d4f6aa220691051e84f6d2f89f4104bfbf40158
Submitter: Jenkins
Branch: master

commit 6d4f6aa220691051e84f6d2f89f4104bfbf40158
Author: ankitagrawal <email address hidden>
Date: Mon Oct 20 00:52:51 2014 -0700

    Updated run_tests.sh to run tests in debug mode

    Start directory was not configured property in run_tests.sh which raises
    error while running entire test suit using debug mode.

    Updated "testrargs" value from "discover ./glance/tests" to
    "discover ./tests" as default starting point to run all tests
    if specific test is not provided.

    Closes-Bug: 1383117
    Change-Id: Ie26d6ec02c92e9ac03dd7c35d313ea377715322f