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'use strict';
const assert = require('assert');const promiseOrCallback = require('../../lib/helpers/promiseOrCallback');
describe('promiseOrCallback()', () => {  const myError = new Error('This is My Error');  const myRes = 'My Res';  const myOtherArg = 'My Other Arg';
  describe('apply callback', () => {    it('without error', (done) => {      promiseOrCallback(        (error, arg, otherArg) => {          assert.equal(arg, myRes);          assert.equal(otherArg, myOtherArg);          assert.equal(error, undefined);          done();        },        (fn) => { fn(null, myRes, myOtherArg); }      );    });
    describe('with error', () => {      it('without event emitter', (done) => {        promiseOrCallback(          (error) => {            assert.equal(error, myError);            done();          },          (fn) => { fn(myError); }        );      });
      it('with event emitter', (done) => {        promiseOrCallback(          () => { },          (fn) => { return fn(myError); },          {            listeners: () => [1],            emit: (eventType, error) => {              assert.equal(eventType, 'error');              assert.equal(error, myError);              done();            }          }        );      });    });  });
  describe('chain promise', () => {    describe('without error', () => {      it('two args', (done) => {        const promise = promiseOrCallback(          null,          (fn) => { fn(null, myRes); }        );        promise.then((res) => {          assert.equal(res, myRes);          done();        });      });
      it('more args', (done) => {        const promise = promiseOrCallback(          null,          (fn) => { fn(null, myRes, myOtherArg); }        );        promise.then((args) => {          assert.equal(args[0], myRes);          assert.equal(args[1], myOtherArg);          done();        });      });    });
    describe('with error', () => {      it('without event emitter', (done) => {        const promise = promiseOrCallback(          null,          (fn) => { fn(myError); }        );        promise.catch((error) => {          assert.equal(error, myError);          done();        });      });

      it('with event emitter', (done) => {        const promise = promiseOrCallback(          null,          (fn) => { return fn(myError); },          {            listeners: () => [1],            emit: (eventType, error) => {              assert.equal(eventType, 'error');              assert.equal(error, myError);            }          }        );        promise.catch((error) => {          assert.equal(error, myError);          done();        });      });    });  });});