language: node_js
cache: yarn
node_js:
  - node
  - "10"
  - "12"
  - "8"
install:
  - yarn install --ignore-engines
matrix:
  include:
    node_js: "6"
    script: npx jest
    env: ESTIMO_DISABLE=1

language: node_js
cache: yarn
node_js:
  - node
  - "10"
  - "12"
  - "8"
install:
  - yarn install --ignore-engines
matrix:
  include:
    node_js: "6"
    script: yarn run jest

Fix Node.js 6 test in CI
Fix Node.js 6 test in CI
