node/deps/npm/test/tap/no-global-warns.js

'use strict'
var path = require('path')
var test = require('tap').test
var mkdirp = require('mkdirp')
var osenv = require('osenv')
var rimraf = require('rimraf')
var writeFileSync = require('fs').writeFileSync
var common = require('../common-tap.js')

var base = path.join(__dirname, path.basename(__filename, '.js'))
var mockGlobal = path.join(base, 'global')
var toInstall = path.join(base, 'to-install')

var config = 'prefix = ' + base
var configPath = path.join(base, '_npmrc')

var extend = Object.assign || require('util')._extend

var OPTS = {
  env: extend({
    'npm_config_userconfig': configPath
  }, process.env)
}

var installJSON = {
  name: 'to-install',
  version: '1.0.0',
  description: '',
  main: 'index.js',
  scripts: {
    test: 'echo \"Error: no test specified\" && exit 1'
  },
  author: '',
  license: 'ISC'
}

test('setup', function (t) {
  setup()
  t.end()
})

test('no-global-warns', function (t) {
  common.npm(['install', '-g', toInstall], OPTS, function (err, code, stdout, stderr) {
    t.ifError(err, 'installed w/o error')
    t.is(stderr, '', 'no warnings printed to stderr')
    t.end()
  })
})

test('cleanup', function (t) {
  process.chdir(osenv.tmpdir())
  cleanup()
  t.end()
})

function cleanup () {
  rimraf.sync(base)
}

function setup () {
  cleanup()
  mkdirp.sync(mockGlobal)
  mkdirp.sync(toInstall)
  writeFileSync(
    path.join(toInstall, 'package.json'),
    JSON.stringify(installJSON, null, 2)
  )
  writeFileSync(configPath, config)
}