Refactor tests to use the PyTest framework

Author: davidjrichardson

.travis.yml

@@ -9,7 +9,7 @@ install:
   # command to run tests
 script:
   # Formatting compliance test
-  - python -m unittest karma.karma_tests
+  - pytest
   - pycodestyle --show-source --show-pep8 --ignore=E121,E123,E126,E133,E226,E241,E242,E704,W503,W504,E402 --max-line-length=300 karma/* commands/* migrations/* apollo.py models.py
 
 # Discord notifications

alembic.tests.ini

@@ -35,7 +35,7 @@ script_location = migrations
 # are written from script.py.mako
 # output_encoding = utf-8
 
-sqlalchemy.url = sqlite:///test.db
+sqlalchemy.url = sqlite:///:memory:
 
 
 # Logging configuration