Setup pytest

Signed-off-by: Dimitris Zlatanidis <d.zlatanidis@gmail.com>

pytest.ini

@@ -0,0 +1,4 @@
+[pytest]
+python_files = test_*
+python_classes = *Tests
+python_functions = test_*

setup.py

@@ -35,7 +35,9 @@ except ImportError:
     from distutils.core import setup
 
 docs_requires = []
-tests_requires = []
+tests_requires = [
+    "pytest>=5.3.2"
+]
 install_requires = [
     "urllib3>=1.25.7"
 ]