Merge pull request #19473 from highcharts/dash/test-workflow

dashboards test gh action

.github/workflows/dashboards-test.yml

@@ -6,9 +6,9 @@ name: Dashboards Test
 on:
   # Triggers the workflow on push or pull request events but only for the default branch
   push:
-    branches: [ $default-branch ]
+    branches: [ 'master' ]
   pull_request:
-    branches: [ $default-branch ]
+    branches: [ 'master' ]
     paths:
       - 'test/cypress/visual/**'
       - 'samples/cypress/dashboards/**'
@@ -27,13 +27,33 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [18.x]
+        node-version: [lts]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
+
+      # Note that this adds a post-job step that saves the cache
+      - name: Cache node modules
+        id: cache-npm
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-node-modules
         with:
-            ref: master
+          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 }}-
+
+      # Lists modules if no cache
+      - if: ${{ steps.cache-npm.outputs.cache-hit != 'true' }}
+        name: List the state of node modules
+        continue-on-error: true
+        run: npm list
+
       - name: Install Dependencies
         run: npm i
+
       - name: Run Dashboards Tests
         run: npx gulp dashboards/test