Add code coverage

.coveragerc

@@ -0,0 +1,15 @@
+[report]
+omit =
+  app/app/wsgi.py
+  app/classifier/*
+  app/server/migrations/*
+  app/server/templatetags/*
+  app/server/tests/*
+
+exclude_lines =
+  pragma: no cover
+  if __name__ == .__main__.
+  def __str__
+  raise NotImplementedError
+
+fail_under = 90

.dockerignore

@@ -8,5 +8,6 @@ app/server/webpack-stats.json
 !data/
 !tests/
 !tools/
+!.coveragerc
 !.flake8
 !requirements.txt

requirements.txt

@@ -1,4 +1,5 @@
 applicationinsights==0.11.7
+coverage==4.5.3
 dj-database-url==0.5.0
 Django==2.1.7
 django-filter==2.0.0

tools/ci.sh

@@ -5,6 +5,7 @@ set -o errexit
 flake8
 python app/manage.py migrate
 python app/manage.py collectstatic
-python app/manage.py test server.tests
+coverage run --source=app app/manage.py test server.tests
+coverage report
 
 (cd app/server && npm run lint)