jest-setup.js
function mockPrepareHosts (command) {
  // first filter all special case examples from the mockHost list (eg. no entry)
  const workingHosts = mockHosts.filter(i => i.indexOf('no entry') < 0)
  let r = workingHosts.join('\n')

  if (command.includes('-n')) {
    const ip = command.match(/arp -(.*){1} (.*)/)[2]
    r = mockHosts.find(i => i.indexOf(ip) > 0)
  }

  return r
}
function mockPrepareHosts (command) {
  // first filter all special case examples from the mockHost list (eg. no entry)
  const workingHosts = mockHosts.filter(i => i.indexOf('no entry') < 0)
  let r = workingHosts.join('\n')

  if (command.includes('-n')) {
    const ip = command.match(/arp -(.*){1} (.*)/)[2]
    r = mockHosts.find(i => i.indexOf(ip) > 0)
  }

  return r
}
/* eslint-enable