fake-promise-util v0.0.1

fake-promise-util

Util for simple promise simulation with optional delay.

Install

$ npm install fake-promise-util

Usage

To simulate a delayed success, use the success method.

const fakePromiseUtil = require('fake-promise-util');

const returnValue = 'Some successful result 🐵';
const delayInMs = 1000;

console.log(await fakePromiseUtil.success(returnValue, delayInMs))

// (after 1 second) => 'Some successful result 🐵'

To simulate a delayed fail, use the fail method.

const fakePromiseUtil = require('fake-promise-util');

const returnValue = 'Some error text 🙈';
const delayInMs = 1000;

try {
    await fakePromiseUtil.fail(returnValue, delayInMs)
} catch (err) {
    console.log(err.message);
}
    
// (after 1 second) => 'Some error text 🙈'

API

success(returnValue?, delay?)

returnValue?

Type: any

Default: true

Anything you wish to succesfully return from the promise.

delay?

Type: number

Default: 0

An optional delay that you can use to simulate a real world promise scenario.

fail(errorMessage?, delay?)

errorMessage?

Type: string

Default: Yikes.

A string you wish to use as the error messsage, when the error is thrown inside the promise.

delay?

Type: number Default: 0

An optional delay that you can use to simulate a real world promise scenario.