Switch to stestr
According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.
[1] https://etherpad.openstack.org/p/YVR-python-pti
Change-Id: I3fb32622b029bfadef7f34e973d8277c107112f0
diff --git a/test-requirements.txt b/test-requirements.txt
index b858041..f3062b0 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,7 @@
sphinx!=1.6.6,!=1.6.7,>=1.6.2 # BSD
oslosphinx>=4.7.0 # Apache-2.0
oslotest>=3.2.0 # Apache-2.0
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=2.0.0 # Apache-2.0
testscenarios>=0.4 # Apache-2.0/BSD
testtools>=2.2.0 # MIT