split up test & build

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: Test
+name: 'CI/CD Pipeline'
 
 on: [push]
 
@@ -6,6 +6,31 @@ jobs:
   test:
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        node-version: ['10', '12', '13']
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Cache node modules
+        uses: actions/cache@v1
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ matrix.node-version }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: ${{ runner.os }}-node-${{ matrix.node-version }}-
+
+      - run: npm ci
+      - run: npm test
+
+  build:
+    runs-on: ubuntu-latest
+
     strategy:
       matrix:
         node-version: ['10', '12', '13']
@@ -32,8 +57,6 @@ jobs:
           key: ${{ runner.os }}-${{ matrix.node-version }}-public
 
       - run: npm ci
-      - run: npm test
       - run: npm run build
         env:
-          CI: true
           GATSBY_GITHUB_TOKEN: ${{ secrets.GATSBY_GITHUB_TOKEN }}