Get code coverage when running test cases.

Change-Id: Ieae7e463ca766541fa0d085d04a6963e251a554f

.gitignore

@@ -5,6 +5,7 @@
 
 # Hidden files
 .eggs
+.coverage*
 .stestr
 .test
 .testrepository
@@ -15,6 +16,7 @@ __pycache__
 AUTHORS
 build/*
 ChangeLog
+cover/
 doc/build/*
 dist/
 etc/

test-requirements.txt

@@ -1,4 +1,5 @@
 mock >= 2.0  # BSD
 testscenarios>=0.4
 testtools>=2.2.0
-tempest>=17.1.0
+tempest>=17.1.0     # Apache-2.0
+coverage!=4.4,>=4.0 # Apache-2.0

tox.ini

@@ -11,13 +11,23 @@ install_command =
 
 setenv =
     VIRTUAL_ENV={envdir}
-    PYTHONWARNINGS=default::DeprecationWarning,{env:PYTHONWARNINGS:}
+    PYTHONWARNINGS=ignore::Warning,{env:PYTHONWARNINGS:}
     OS_LOG_CAPTURE={env:OS_LOG_CAPTURE:true}
     OS_STDOUT_CAPTURE={env:OS_STDOUT_CAPTURE:true}
     OS_STDERR_CAPTURE={env:OS_STDERR_CAPTURE:true}
+    PYTHON=coverage run --source tobiko --parallel-mode
+
+whitelist_externals=
+    find
 
 commands =
-    stestr run {posargs}
+    coverage erase
+    find . -type f -name "*.pyc" -delete
+    stestr --test-path ./tobiko/tests run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
+    coverage report
 
 deps =
     -r{toxinidir}/test-requirements.txt