Improving cover testenv

- Add whitelist_externals envconfig setting
- Add percentage report to further analyze code-base

result:

Name                                Stmts   Miss Branch BrPart     Cover
------------------------------------------------------------------------
oslo_vmware/__init__.py                 0      0      0      0   100.00%
oslo_vmware/_i18n.py                    4      0      0      0   100.00%
oslo_vmware/api.py                    205      5     50      6    95.69%
oslo_vmware/common/__init__.py          0      0      0      0   100.00%
oslo_vmware/common/loopingcall.py      76      8     20      8    83.33%
oslo_vmware/constants.py                5      0      0      0   100.00%
oslo_vmware/exceptions.py             155     12     30      2    90.27%
oslo_vmware/image_transfer.py         117     23     22      4    77.70%
oslo_vmware/image_util.py               9      0      0      0   100.00%
oslo_vmware/objects/__init__.py         0      0      0      0   100.00%
oslo_vmware/objects/datacenter.py       9      0      4      0   100.00%
oslo_vmware/objects/datastore.py      172     18     56      8    87.72%
oslo_vmware/pbm.py                     94      8     20      0    92.98%
oslo_vmware/rw_handles.py             289     52     52     10    80.65%
oslo_vmware/service.py                239     14     88     12    90.21%
oslo_vmware/version.py                  2      2      0      0     0.00%
oslo_vmware/vim.py                     14      2      2      0    87.50%
oslo_vmware/vim_util.py               218      1     56     10    95.99%
------------------------------------------------------------------------
TOTAL                                1608    145    400     60    88.79%

Change-Id: Ib5dc6a9f0600f7399d0a773e8a78102bbbfd7893

1 files changed, 6 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 62212bf..e4145c9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,8 @@ setenv =
     BRANCH_NAME=master
     CLIENT_NAME=oslo.vmware
 install_command = {toxinidir}/tools/tox_install.sh {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
+whitelist_externals = find
+                      rm
 deps = -r{toxinidir}/test-requirements.txt
 commands = python setup.py testr --slowest --testr-args='{posargs}'
 
@@ -31,8 +33,11 @@ commands = python setup.py build_sphinx
 
 [testenv:cover]
 commands =
+  coverage erase
+  find . -type f -name "*.pyc" -delete
   python setup.py test --coverage --coverage-package-name=oslo_vmware --testr-args='{posargs}'
-
+  coverage report
+  
 [testenv:venv]
 commands = {posargs}