Add gate jobs

Add test coverage report

Change-Id: I6206237d1cc902a1e8e521b37c19d84267ae8d6d

.gitignore

@@ -5,3 +5,5 @@
 build
 .unit-state.db
 *.swp
+.coverage
+cover/

.gitreview

@@ -0,0 +1,4 @@
+[gerrit]
+host=review.openstack.org
+port=29418
+project=openstack/charm-interface-ceph-rbd-mirror

.zuul.yaml

@@ -0,0 +1,3 @@
+- project:
+    templates:
+      - python35-charm-jobs

tox.ini

@@ -13,17 +13,44 @@ install_command =
 [testenv:py3]
 basepython = python3
 deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run {posargs}
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run
+commands =
+    coverage erase
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
 
 [testenv:py35]
 basepython = python3.5
 deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run {posargs}
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run
+commands =
+    coverage erase
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
 
 [testenv:py36]
 basepython = python3.6
 deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run {posargs}
+setenv =
+    {[testenv]setenv}
+    PYTHON=coverage run
+commands =
+    coverage erase
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
 
 [testenv:pep8]
 basepython = python3
@@ -33,6 +60,16 @@ commands = flake8 {posargs}
 [testenv:venv]
 commands = {posargs}
 
+[coverage:run]
+branch = True
+concurrency = multiprocessing
+parallel = True
+source =
+    .
+omit =
+    .tox/*
+    unit_tests/*
+
 [flake8]
 # E402 ignore necessary for path append before sys module import in actions
 ignore = E402