import { expect, tap } from 'tapbundle';
import * as q from '../ts/index';

let myCallback = (someValue1: string, cb?) => {
  cb(null, someValue1);
};

tap.test('should return a Deferred for .defer()', async () => {
  let myDeferred = q.defer();
  let expectPromise = expect(myDeferred.promise).to.eventually.be.fulfilled;
  myDeferred.resolve();
  return expectPromise;
});

tap.test('should let types flow through the Promise', async () => {
  let myString = 'someString';
  let myDeferred = q.defer<string>();
  let expectPromise = expect(myDeferred.promise).to.eventually.equal('someString');
  myDeferred.resolve(myString);
  return expectPromise;
});

tap.test('should promisify a callback', async () => {
  let myPromisified = q.promisify(myCallback);
  let expectPromise = expect(myPromisified('hi')).to.eventually.equal('hi');
  return await expectPromise;
});

tap.test('should map callbacks', async () => {
  let inputArray = ['hi', 'awesome'];
  let myPromisified = q.promisify(myCallback);
  let expectPromise = expect(q.map(inputArray, myPromisified)).to.eventually.deep.equal(inputArray);
  return expectPromise;
});

tap.start();