Adding jest to ci jobs

.circleci/config.yml

@@ -27,6 +27,12 @@ workflows:
           filters:
             branches:
               only: deploy/test
+      - jest:
+          requires:
+            - build
+          filters:
+            branches:
+              only: deploy/test
       - build:
           filters:
             branches:
@@ -53,6 +59,12 @@ workflows:
           filters:
             branches:
               only: deploy/release
+      - jest:
+          requires:
+            - build
+          filters:
+            branches:
+              only: deploy/release
       - build:
           filters:
             branches:
@@ -132,6 +144,9 @@ jobs:
       - run:
           name: Build code
           command: npm run build:prod
+      - run:
+          name: Run unit tests
+          command: npm run jest
       - run:
           name: Install python dependencies
           command: pip install -e .
@@ -141,6 +156,19 @@ jobs:
             - mopidy_iris
           key: v1-dependencies-{{ checksum "IRIS_VERSION" }}
 
+  jest:
+    docker:
+      - image: nikolaik/python-nodejs:python3.7-nodejs12-stretch
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+          - v1-dependencies-{{ checksum "IRIS_VERSION" }}
+      - run:
+          name: Run Jest unit tests
+          command: npm run test
+      # Submit coverage
+
   deploy:
     docker:
       - image: nikolaik/python-nodejs:python3.7-nodejs12-stretch