ceph-volume tests.lvm replace testinfra command for py.test

Signed-off-by: Alfredo Deza <adeza@redhat.com>
(cherry picked from commit c4597fc)

src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini

@@ -56,19 +56,19 @@ commands=
   # prepare nodes for testing with testinfra
   ansible-playbook -vv -i {changedir}/hosts {envdir}/tmp/ceph-ansible/tests/functional/setup.yml
 
-  # test cluster state using testinfra 
-  testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
+  # test cluster state using testinfra
+  py.test -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
 
   # reboot all vms - attempt
   bash {toxinidir}/../scripts/vagrant_reload.sh {env:VAGRANT_UP_FLAGS:"--no-provision"} {posargs:--provider=virtualbox}
 
   # retest to ensure cluster came back up correctly after rebooting
-  testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
+  py.test -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
 
   # destroy an OSD, zap it's device and recreate it using it's ID
   ansible-playbook -vv -i {changedir}/hosts {changedir}/test.yml
 
   # retest to ensure cluster came back up correctly
-  testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
+  py.test -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {toxinidir}/../tests
 
   vagrant destroy --force