Circle-CI config for running sanity tests (lint and unit tests) before PR merge and build deployment

config.yml

version: 2

defaults: &defaults
  docker:
    - image: circleci/node:10.15.3
  working_directory: ~/repo

jobs:
  install:
    <<: *defaults
    steps:
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
            # Find a cache corresponding to this specific package-lock.json checksum
            # when this file is changed, this key will fail
            - v1-dependencies-{{ checksum "package.json" }}
            # fallback to using the latest cache if no exact match is found
            - v1-dependencies-

      - run: # install npm packages
          name: Install npm dependencies
          command: yarn install

      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-{{ checksum "package.json" }}

  lint:
    <<: *defaults
    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-dependencies-{{ checksum "package.json" }}
            - v1-dependencies-
      - run: # run lint
          name: Check Linting
          command: yarn lint

  test:
    <<: *defaults
    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-dependencies-{{ checksum "package.json" }}
            - v1-dependencies-

      - run: # run tests
          name: Verify Tests
          command: yarn test

workflows:
    version: 2
    sanity_test:
      jobs:
        - install
        - lint:
            requires:
              - install
        - test:
            requires:
              - install