Merge "Added tox environment for gathering coverage"

.coveragerc

@@ -1,7 +0,0 @@
-[report]
-# Regexes for lines to exclude from consideration
-exclude_lines =
-    if __name__ == .__main__.:
-include=
-    hooks/keystone_*
-    actions/actions.py

.zuul.yaml

@@ -1,3 +1,4 @@
 - project:
     templates:
       - python35-charm-jobs
+      - openstack-cover-jobs

test-requirements.txt

@@ -5,3 +5,4 @@ flake8>=2.2.4,<=2.4.1
 os-testr>=0.4.1
 python-keystoneclient>=1.7.1
 git+https://github.com/openstack-charmers/zaza.git#egg=zaza;python_version>='3.0'
+coverage>=4.5.2

tox.ini

@@ -41,6 +41,33 @@ deps = -r{toxinidir}/requirements.txt
 commands = flake8 {posargs} hooks unit_tests tests actions lib
            charm-proof
 
+[testenv:cover]
+# Technique based heavily upon
+# https://github.com/openstack/nova/blob/master/tox.ini
+basepython = python3
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run
+commands =
+    coverage erase
+    ostestr {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
+
+[coverage:run]
+branch = True
+concurrency = multiprocessing
+parallel = True
+source =
+    .
+omit =
+    .tox/*
+    charmhelpers/*
+
 [testenv:venv]
 basepython = python3
 commands = {posargs}