Add GHA

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  node-tests:
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: 10.x
+
+    - name: Build
+      run: |
+        npm install
+        npm run build
+    - name: Run tests
+      run: npm run test