Use pytest as test runner

* Used pytest to run tests within tox environments

* Removed test runner within setup.py

setup.cfg

@@ -5,3 +5,6 @@ all_files  = 1
 
 [upload_sphinx]
 upload-dir = build/docs/html
+
+[tool:pytest]
+DJANGO_SETTINGS_MODULE = analytical.tests.settings

setup.py

@@ -17,42 +17,9 @@ except ImportError:
     pass
 
 
-class TestCommand(Command):
-    description = "run package tests"
-    user_options = []
-
-    def initialize_options(self):
-        pass
-
-    def finalize_options(self):
-        pass
-
-    def run(self):
-        from analytical.tests.utils import run_tests
-
-        run_tests()
-
-
-cmdclass['test'] = TestCommand
-
-
 def read_file(fname):
     return open(os.path.join(os.path.dirname(__file__), fname)).read()
 
-
-try:
-    import django
-    os.environ.setdefault(
-        "DJANGO_SETTINGS_MODULE",
-        "analytical.tests.settings"
-    )
-    django.setup()
-except ImportError:
-    print(
-        "Could not import django. "
-        "This is fine, unless you intend to run unit tests."
-    )
-
 import analytical as package  # noqa
 
 setup(

tox.ini

@@ -10,11 +10,13 @@ envlist =
 description = Unit tests
 deps =
     coverage
+    pytest
+    pytest-django
     django111: Django>=1.11,<2.0
     django22: Django>=2.2,<3.0
     django30: Django>=3.0,<3.1
 commands =
-    coverage run setup.py test
+    coverage run -m pytest
     coverage xml
 
 [gh-actions]