version: 2

defaults: &defaults
  working_directory: ~/src
  docker:
      - image: circleci/node:10.14-browsers

jobs:
  build:
    <<: *defaults

    steps:
      - checkout
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "package.json" }}
          # fallback to using the latest cache if no exact match is found
          - v1-dependencies-
      - run:
          name: Install dependencies
          command: npm i
      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-{{ checksum "package.json" }}
      - run:
          name: ESLint
          command: npx run lint
      - run:
          name: Karma Tests
          command: npx run test