Test core volto slate with prefixed site

.github/workflows/acceptance.yml

@@ -1652,6 +1652,91 @@ jobs:
           name: cypress-videos
           path: packages/volto/cypress/videos
 
+  prefix-corevoltoslate:
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
+    name: Core Volto Slate Prefixed Site
+    runs-on: ubuntu-latest
+    timeout-minutes: 35
+    strategy:
+      matrix:
+        node-version: [20.x]
+    steps:
+      - uses: actions/checkout@v4
+
+      # node setup
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      # pnpm install
+      - uses: pnpm/action-setup@v3
+        name: Install pnpm
+        with:
+          version: 8
+          run_install: false
+
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - uses: actions/cache@v4
+        name: Setup pnpm cache
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Cache Cypress Binary
+        id: cache-cypress-binary
+        uses: actions/cache@v4
+        with:
+          path: ~/.cache/Cypress
+          key: binary-${{ matrix.node-version }}-${{ hashFiles('pnpm-lock.yaml') }}
+
+      - run: pnpm i
+
+      - name: Install Cypress if not in cache
+        if: steps.cache-cypress-binary.outputs.cache-hit != 'true'
+        working-directory: packages/volto
+        run: make cypress-install
+
+      - name: Cypress acceptance tests
+        uses: cypress-io/github-action@v6
+        env:
+          BABEL_ENV: production
+          CYPRESS_RETRIES: 2
+          # Recommended: pass the GitHub token lets this action correctly
+          # determine the unique run id necessary to re-run the checks
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          install: false
+          working-directory: packages/volto
+          browser: chrome
+          spec: cypress/tests/core/volto-slate/**/*.js
+          config: baseUrl=http://localhost/foo
+          env: prefixPath=/foo
+          start: |
+            make start-test-acceptance-server
+            make start-test-acceptance-frontend-prefixed
+            make start-test-acceptance-webserver-prefixed
+          wait-on: 'npx wait-on --httpTimeout 20000 http-get://127.0.0.1:55001/plone http://127.0.0.1:3000/foo http://localhost/foo'
+
+      # Upload Cypress screenshots
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: cypress-screenshots
+          path: packages/volto/cypress/screenshots
+      # Upload Cypress videos
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: cypress-videos
+          path: packages/volto/cypress/videos
+
   multilingualprefix:
     if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
     name: Multilingual in Prefixed site