[CIRCLE_CI]: added config for single job

Author: pateash

.circleci/config.yml

@@ -1,6 +1,6 @@
 version: 2
 jobs:
-  build:
+  build_and_test:
     working_directory: ~/mern-starter
     # The primary container is an instance of the first image listed. The job's commands run in this container.
     docker:
@@ -20,24 +20,6 @@ jobs:
           key: dependency-cache-{{ checksum "package-lock.json" }}
           paths:
             - node_modules
-  test:
-    docker:
-      - image: circleci/node:latest
-    steps:
-      - checkout
-      #      needed to add here also as both install and test are different docker instances and need to do same thing again in different instance
-      - run:
-          name: Update npm
-          command: 'sudo npm install -g npm@latest'
-      - restore_cache:
-          key: dependency-cache-{{ checksum "package-lock.json" }}
-      - run:
-          name: Install npm dependencies
-          command: npm install
-      - save_cache:
-          key: dependency-cache-{{ checksum "package-lock.json" }}
-          paths:
-            - node_modules
       - run:
           name: Test
           command: npm test
@@ -55,7 +37,4 @@ workflows:
   version: 2
   build_and_test:
     jobs:
-      - build
-      - test:
-          requires:
-            - build
+      - build_and_test

.circleci/config_2jobs.yml

@@ -0,0 +1,61 @@
+version: 2
+jobs:
+  build:
+    working_directory: ~/mern-starter
+    # The primary container is an instance of the first image listed. The job's commands run in this container.
+    docker:
+      - image: circleci/node:latest
+      # The secondary container is an instance of the second listed image which is run in a common network where ports exposed on the primary container are available on localhost.
+    steps:
+      - checkout
+      - run:
+          name: Update npm
+          command: 'sudo npm install -g npm@latest'
+      - restore_cache:
+          key: dependency-cache-{{ checksum "package-lock.json" }}
+      - run:
+          name: Install npm dependencies
+          command: npm install
+      - save_cache:
+          key: dependency-cache-{{ checksum "package-lock.json" }}
+          paths:
+            - node_modules
+  test:
+    docker:
+      - image: circleci/node:latest
+    steps:
+      - checkout
+      #      needed to add here also as both install and test are different docker instances and need to do same thing again in different instance
+      - run:
+          name: Update npm
+          command: 'sudo npm install -g npm@latest'
+      - restore_cache:
+          key: dependency-cache-{{ checksum "package-lock.json" }}
+      - run:
+          name: Install npm dependencies
+          command: npm install
+      - save_cache:
+          key: dependency-cache-{{ checksum "package-lock.json" }}
+          paths:
+            - node_modules
+      - run:
+          name: Test
+          command: npm test
+      - run:
+          name: Generate code coverage
+          command: './node_modules/.bin/nyc report --reporter=text-lcov'
+      - store_artifacts:
+          path: test-results.xml
+          prefix: tests
+      - store_artifacts:
+          path: coverage
+          prefix: coverage
+
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - build
+      - test:
+          requires:
+            - build