@unpourtous/mocker

Mocker

0. Introduction

Mocker is a simple and lightweight library which is used for generating random js object as defined schema.

Features

1. Lightweight: Only 4 basic type, pretty easy to get start.
2. Extendable: String type support RegExp which allow your to generate custom type, but we support array and object too
3. Non-invasive: Keep all properties key clean, do not modify it since you may need it anywhere else.

1. Installation

npm install @unpourtous/mocker --save

2. Usage

a) First, define your object, the object schema.

import { Types } from '@unpourtous/mocker'
const objectSchema = {
  stringDate: Types.string('date'),
  stringRange: Types.string().range(10, 100),
  numberRange: Types.number().range(0, 100),
  enum: Types.enum(['A', 'B', 'C']),
  fixNumber: 520, // If a valid type was set, the valid type will be the value
  fixString: 'this is a fixString',
  plainObject: { // define a object array 
    far: Types.string(),
    bar: Types.number()
  },  
  stringArray: [Types.string()],  // define a primary type array
  objectArray: [{ // define a object array 
    far: Types.string(),
    bar: Types.number()
  }]
}

b) Secondly, use Mocker to generate a random object.

import { Mocker } from '@unpourtous/mocker'
const mockerObject = Mocker.mockObject(objectSchema)

// the mockerObject should like 
// { 
//   stringDate: '1941-10-03',
//   stringRange: 'PKlDGzTY10pMZjYDIMtEWThTlXGcQE1gp2rYcStO2n52vw',
//   numberRange: 62.61,
//   enum: 'B',
//   default: 'GXvmNy',
//   fixNumber: 520, 
//   fixString: 'this is a fixString',
//   plainObject: { far: 'O0qBn', bar: 464255.58 },
//   stringArray: [ 'X5iH5' ],
//   objectArray: [ { far: '', bar: 574378.47 } ] 
// }

3. Detail Types & API

String

API	Description
string()	Create a instance of TPString.
range(min, max)	Set min and max length for string, this is only used if this string dose not set regExp
regExp(regExp)	Set regExp for this string, if this is set, the generated string match this regexp.
fixValue(fixValue)	Set fix value

Number

API	Description
number()	Create a instance of Number.
range (min, max)	Set min value and max value for number
format(format)	Set number format, get more detail from Numeral.js
fixValue(fixValue)	Set fix value

Enum

API	Description
enum(enumValues)	Create a instance of Enum. enumValues should be a array containers all possible value.

Boolean

API	Description
boolean()	Create a instance of Boolean.
fixValue(fixValue)	Set fix value

APIS

4. Test & Demo

All test case was put in test/.

Test result:

You can also clone it run the test by youself.

git clone https://github.com/UnPourTous/mocker.git
cd mocker
yarn 
yarn run test

5. Thanks

• Randexp.js used to generate random string match a specified regexp
• Numeral.js as number format library
• Chai as test assert library
• Mocha as test framework

6. TODO

1. Add browser support

7. License

MIT

Refs

• http://babeljs.io/docs/plugins/transform-es2015-modules-umd/
• http://krasimirtsonev.com/blog/article/javascript-library-starter-using-webpack-es6
• https://github.com/webpack/webpack/issues/2785#issuecomment-293584946
• https://github.com/gaearon/redux-thunk/issues/43