Move initial story test to use tox and pytest

tox.ini

@@ -6,13 +6,18 @@ skip_missing_interpreters = True
 [testenv]
 skip_install = True
 setenv =
-    PYTHONPATH = {toxroot}
+    PYTHONPATH = {toxroot}/setclass
 commands =
     pytest --cov=. --junitxml=junit.xml --cov-report xml:coverage.xml --cov-report term {posargs}
 deps =
     -r requirements-dev.txt
 
 [coverage:run]
+omit =
+    ./**/tests/*.py
+    ./**/test_*.py
+    ./**/*_tests.py
+    ./**/tests.py
 
 [coverage:report]
 skip_empty = True