Refactor

As all points from the epic refactor issue are closed #47 (closed) I am merging this in to master in order to unblock development.

.gitlab-ci.yml

-
 stages:
         - build
         - test
@@ -7,7 +6,8 @@ stages:
 variables:
         IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
 
-build:
+# ============================= Building section ============================= #
+build_backend:
         image: docker:latest
         stage: build
         script:
@@ -15,25 +15,50 @@ build:
                 - docker build -t $IMAGE_TAG .
                 - docker push $IMAGE_TAG
 
-
-.test_template: &test_definition
+# ============================== Testing section ============================= #
+# ----------------------------- Backend subsection --------------------------- #
+.test_template_backend: &test_definition_backend
         stage: test
         image: $IMAGE_TAG
+        before_script:
+                - cd backend/
 
 test_coverage:
-        <<: *test_definition
+        <<: *test_definition_backend
         services:
                 - postgres:9.5
         script:
                 - coverage run manage.py test --noinput
                 - coverage report --skip-covered
+        artifacts:
+                paths:
+                - .coverage/
 
 test_pylint:
-        <<: *test_definition
+        <<: *test_definition_backend
         script:
                 - pylint core || exit 0
 
+test_prospector:
+        <<: *test_definition_backend
+        script:
+                - prospector --uses django || exit 0
+
+# ----------------------------- Frontend subsection -------------------------- #
+.test_template_frontend: &test_definition_frontend
+        image: node:carbon
+        stage: test
+        before_script:
+                - cd frontend/
+
+test_frontend:
+        <<: *test_definition_frontend
+        script:
+                - yarn install
+                - yarn test --single-run
+        allow_failure: true
 
+# ============================== Staging section ============================= #
 .staging_template: &staging_definition
         stage: staging
         image: docker:latest