Fix coverage configuration and execution

A number of configuration errors prevent the successful creation of code
coverage. This corrects the .coveragerc source/omit setup and the tox
package name generation.

Change-Id: I5329955ee1e5101fe62012c6cae91e39f0fc96e4

.coveragerc

@@ -1,7 +1,8 @@
 [run]
 branch = True
-source = reports
-omit = reports/tests/*,reports/openstack/*
+source = oslo_reports
+omit = oslo_reports/tests/*,oslo_reports/openstack/*
 
 [report]
-ignore-errors = True
+ignore_errors = True
+precision = 2

.gitignore

@@ -24,6 +24,7 @@ pip-log.txt
 
 # Unit test / coverage reports
 .coverage
+cover
 .tox
 nosetests.xml
 .testrepository

test-requirements.txt

@@ -13,3 +13,5 @@ sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
 oslo.config>=2.3.0 # Apache-2.0
 eventlet>=0.17.4
 greenlet>=0.3.2
+
+coverage>=3.6

tox.ini

@@ -26,7 +26,7 @@ commands = {posargs}
 commands = python setup.py build_sphinx
 
 [testenv:cover]
-commands = python setup.py testr --coverage --testr-args='{posargs}'
+commands = python setup.py test --coverage --coverage-package-name=oslo_reports --testr-args='{posargs}'
 
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.
@@ -45,4 +45,4 @@ import_exceptions =
 # this also means that pip-missing-reqs must be installed separately, outside
 # of the requirements.txt files
 deps = pip_missing_reqs
-commands = pip-missing-reqs -d --ignore-module=oslo_reports* --ignore-module=pkg_resources --ignore-file=oslo_reports/test.py --ignore-file=oslo_reports/tests/* oslo_reports
+commands = pip-missing-reqs -d --ignore-module=oslo_reports* --ignore-module=pkg_resources --ignore-file=oslo_reports/test.py --ignore-file=oslo_reports/tests/* oslo_reports