install:
    - npm install --no-optional

test_script:
    - node --version
    - npm --version
    - npm test

build: off

cache:
    - node_modules -> package.json

install:
    - npm install --no-optional

test_script:
    - node --version
    - npm --version
    - npm test

build: off

Use a cache for npm install on AppVeyor
Use a cache for npm install on AppVeyor
