Finalizing all CI tests with Github Actions

Author: jolyonb

.github/workflows/ci.yaml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8]
+        python-version: [3.5, 3.6, 3.7]
     steps:
       - name: Check out repository code
         uses: actions/checkout@v2
@@ -52,3 +52,25 @@ jobs:
 
       - name: Run coverage
         run: codecov
+
+  NodeJS-Tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [16]
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        run: |
+          cd mitxgraders-js
+          npm install
+
+      - name: Run test cases
+        run: npm test