diff --git a/.coveragerc b/.coveragerc
index 82fe477929eb..902a94349e6c 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,6 +1,7 @@
 [run]
 branch = True
-omit = /usr*,setup.py,*egg*,.venv/*,.tox/*,nova/tests/*
+source = nova
+omit = nova/tests/*,DynamicallyCompiledCheetahTemplate.py
 
 [report]
 ignore-errors = True
diff --git a/tools/test-requires b/tools/test-requires
index 6ee42d31cec5..5f195d5c1c7e 100644
--- a/tools/test-requires
+++ b/tools/test-requires
@@ -11,5 +11,5 @@ pep8==1.3.3
 pylint==0.25.2
 python-subunit
 sphinx>=1.1.2
-testrepository>=0.0.8
+testrepository>=0.0.13
 testtools>=0.9.22
diff --git a/tox.ini b/tox.ini
index a386777c8e4b..e3322e044354 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,8 +8,7 @@ setenv = VIRTUAL_ENV={envdir}
          LC_ALL=C
 deps = -r{toxinidir}/tools/pip-requires
        -r{toxinidir}/tools/test-requires
-commands = bash -c 'if [ ! -d ./.testrepository ] ; then testr init ; fi'
-           bash -c 'testr run --parallel {posargs} ; RET=$? ; echo "Slowest Tests" ; testr slowest && exit $RET'
+commands = python setup.py testr --slowest --testr-args='{posargs}'
 
 [tox:jenkins]
 sitepackages = True
@@ -35,13 +34,11 @@ deps = pyflakes
 commands = python tools/flakes.py nova
 
 [testenv:cover]
-# Need to omit DynamicallyCompiledCheetahTemplate.py from coverage because
-# it ceases to exist post test run. Also do not run test_coverage_ext tests
-# while gathering coverage as those tests conflict with coverage.
-setenv = OMIT=--omit=DynamicallyCompiledCheetahTemplate.py
-         PYTHON=coverage run --source nova --parallel-mode
-commands = bash -c 'if [ ! -d ./.testrepository ] ; then testr init ; fi'
-           bash -c 'testr run --parallel \^\(\?\!\.\*test_coverage_ext\)\.\*\$ ; RET=$? ; coverage combine ; coverage html -d ./cover $OMIT && exit $RET'
+# Also do not run test_coverage_ext tests while gathering coverage as those
+# tests conflict with coverage.
+commands =
+  python setup.py testr --coverage \
+    --testr-args='^(?!.*test_coverage_ext).*$'
 
 [testenv:venv]
 commands = {posargs}