[ci] break workflow in multiple parallel steps

.circleci/config.yml

@@ -1,31 +1,45 @@
 version: 2
 jobs:
-  build:
+  setup:
     docker:
       - image: circleci/node:9
     steps:
       - checkout
       - run:
-          name: checkout-submodule
+          name: Checkout submodules
           command: git submodule update --init --recursive
       - run:
-          name: update-npm
+          name: Install latest version of npm
           command: sudo npm install -g npm@latest
       - restore_cache:
           key: dependency-cache-{{ checksum "package-lock.json" }}
       - run:
-          name: install-dependencies
+          name: Install project dependencies
           command: npm install
       - save_cache:
           key: dependency-cache-{{ checksum "package-lock.json" }}
           paths:
             - ./node_modules
+      - persist_to_workspace:
+          root: .
+          paths: node_modules
+
+  test:
+    docker:
+      - image: circleci/node:9
+    steps:
       - run:
           name: test
           command: npm run test
+
+  build:
+    docker:
+      - image: circleci/node:9
+    steps:
       - run:
           name: build
           command: npm run build
+
   deploy:
     machine: true
     steps:
@@ -44,7 +58,13 @@ workflows:
   version: 2
   build-and-deploy:
     jobs:
+      - setup
+      - test
+          requires:
+            - setup
       - build
+          requires:
+            - setup
       - deploy:
           requires:
             - build