Enable coverage testing

This is useful to see how we're doing on unit testing.

93%, for the record. :-)

Change-Id: If5301b3205818dbba49c6a82ce6f5135384d0b27

.coveragerc

@@ -0,0 +1,7 @@
+[run]
+branch = True
+source = instack_undercloud
+omit = instack_undercloud/tests/*
+
+[report]
+ignore_errors = True

.gitignore

@@ -22,6 +22,7 @@ pip-log.txt
 
 # Unit test / coverage reports
 .coverage
+cover
 .tox
 .testrepository
 nosetests.xml

test-requirements.txt

@@ -5,6 +5,7 @@ sphinx_rtd_theme==0.1.7
 
 hacking>=0.10.0,<0.11
 
+coverage>=3.6
 discover
 fixtures>=0.3.14
 python-subunit>=0.0.18

tox.ini

@@ -25,6 +25,9 @@ commands =
     flake8
     bash -c "find scripts -type f | xargs bashate -v -iE006"
 
+[testenv:cover]
+commands = python setup.py test --coverage --coverage-package-name=instack_undercloud --testr-args='{posargs}'
+
 [flake8]
 ignore = H803
 show-source = True