[testenv]
usedevelop = True
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/pike} {opts} {packages}
deps = -r{toxinidir}/requirements.txt
-r{toxinidir}/test-requirements.txt
commands = python setup.py testr --slowest --testr-args='{posargs}'