Add jest to CI actions

Author: sebromero

.github/workflows/jest.yml

@@ -0,0 +1,33 @@
+name: Jest
+on: push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: "14"
+
+      # Speed up subsequent runs with caching
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+
+      # Install required deps for action
+      - name: Install Dependencies
+        run: npm install
+
+      # Finally, run our tests
+      - name: Run the tests
+        run: npm test