Migrate tests to tox rhbz#2019409

64.diff

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+diff --git a/tox.ini b/tox.ini
+new file mode 100644
+index 0000000..e781a62
+--- /dev/null
++++ b/tox.ini
+@@ -0,0 +1,13 @@
++# Tox (https://tox.readthedocs.io) is a tool for running tests
++# in multiple virtualenvs. This configuration file will run the
++# test suite on all supported Python versions. To use it,
++# "python -m pip install tox" and then run "tox" from this directory.
++
++[tox]
++envlist = py{27, 34, 35, 36, 37, 38, 39, 310, 311, py2, py3}
++
++[testenv]
++deps =
++    pytest
++    requests
++commands = {envpython} -b -m pytest -W always tests.py {posargs}