Function withFakeFetch

test/validatorDaemon.test.js:14–20

(impl, fn)

}

function withFakeFetch(impl, fn) {
  const original = global.fetch;
  global.fetch = impl;
  return Promise.resolve()
    .then(fn)
    .finally(() => { global.fetch = original; });
}

function mkRes(body) {
  return {