React Native circleci config

config.yml

version: 2
jobs:
  build:
    docker:
      - image: circleci/node:10

    environment:
      TZ: '/usr/share/zoneinfo/Europe/Paris'

    working_directory: ~/app

    steps:
      - checkout

      - restore_cache:
          keys:
            - yarn-v1-{{ checksum "yarn.lock" }}-{{ arch }}
            - yarn-v1-{{ checksum "yarn.lock" }}
            - yarn-v1-

      - run: yarn --frozen-lockfile

      - run: mkdir -p reports/junit
      - run:
          name: Lint
          command: yarn test:lint --format junit -o reports/junit/js-lint-results.xml
      - run:
          name: Types
          command: yarn test:types
      - run:
          name: Tests
          command: yarn test:unit --ci --runInBand --testResultsProcessor="jest-junit" --coverage
          environment:
            JEST_JUNIT_OUTPUT: "reports/junit/js-test-results.xml"

      - store_test_results:
          path: reports/junit

      - save_cache:
          key: yarn-v1-{{ checksum "yarn.lock" }}-{{ arch }}
          paths:
            - ~/.cache/yarn
            - node_modules