Use pytest inplace of py.test

Signed-off-by: Ivan Kanakarakis <[email protected]>

Author: c00kiemon5ter

tox.ini

@@ -16,8 +16,8 @@ whitelist_externals =
 commands =
   xmlsec1 --version
   python --version
-  py.test --version
+  pytest --version
   tox --version
   pip --version
   pip freeze
-  py.test --cov={envsitepackagesdir}/saml2 -v -rs {posargs:tests/}
+  pytest --cov={envsitepackagesdir}/saml2 -vvv -rs {posargs:tests/}