text: import onlyOnce from './internal/onlyOnce.js'
  import wrapAsync from './internal/wrapAsync.js'
  import awaitify from './internal/awaitify.js'
  
  /**
   * Repeatedly call `iteratee`, while `test` returns `true`. Calls `callback` when
   * stopped, or an error occurs.
   *
   * @name whilst
   * @static
   * @memberOf module:ControlFlow
   * @method
   * @category Control Flow
   * @param {AsyncFunction} test - asynchronous truth test to perform before each
   * execution of `iteratee`. Invoked with ().
   * @param {AsyncFunction} iteratee - An async function which is called each time
   * `test` passes. Invoked with (callback).
   * @param {Function} [callback] - A callback which is called after the test
   * function has failed and repeated execution of `iteratee` has stopped. `callback`
   * will be passed an error and any arguments passed to the final `iteratee`'s
   * callback. Invoked with (err, [results]);
   * @returns {Promise} a promise, if no callback is passed
   * @example
   *
   * var count = 0;
   * async.whilst(
   *     function test(cb) { cb(null, count < 5); },
   *     function iter(callback) {
   *         count++;
   *         setTimeout(function() {
   *             callback(null, count);
   *         }, 1000);
   *     },
   *     function (err, n) {
   *         // 5 seconds have passed, n = 5
   *     }
   * );
   */
  function whilst(test, iteratee, callback) {
      callback = onlyOnce(callback);
      var _fn = wrapAsync(iteratee);
      var _test = wrapAsync(test);
      var results = [];
  
      function next(err, ...rest) {
          if (err) return callback(err);
          results = rest;
          if (err === false) return;
          _test(check);
      }
  
      function check(err, truth) {
          if (err) return callback(err);
          if (err === false) return;
          if (!truth) return callback(null, ...results);
          _fn(next);
      }
  
      return _test(check);
  }
  export default awaitify(whilst, 3)
  