Naming things?

promiseGate.js

function promiseGate(test) {
  return function promiseGateResolver(value) {
    return test(value).then(function(passedTest) {
      if (!passedTest) throw new Error(test.name + '  failed');
      return value;
    })
  }
};

function checkLength(file) {
  return file.length < 100;
}

read(filename)
  .then(promiseGate(checkLength))
  .then(function(file) {
  });