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.github/workflows/build.yml

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+name: Build and Test
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: '12.x'
+
+      - name: Cache node_modules directory
+        uses: actions/cache@v2
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-modules-${{ hashFiles('**/yarn.lock') }}
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Build production distribution
+        run: yarn build
+
+      - name: Run tests
+        run: yarn test