Rester

REST API Test Runner

Synopsis

An experimental REST API test runner that consumes a postman export file (in JSON or JavaScript format), then runs each and every test item in the file in sequential order, or optionally, a single, named item from the test.

Installation

npm install @byrdware/rester

Motivation

Testing REST API's and microservices is tedious and time-consuming. Perhaps a more thorough search is required, but no good tools have been found to easily and quickly automate a test script for checking and validating an API while under development. This project is an attempt to solve this problem by providing a simple tool, driven by an easily configured JSON/JavaScript file.

Initially the format of this configuration file is simply a postman export file. I am currently reviewing Insomnia export files and planning support in a future release, pull requests are welcome.

Usage

$ rester postman ./test/test-suite.js

  Login User
    √ POST http://localhost:3369/user/login
  Create Records
    √ POST http://localhost:3369/create/
  Retrieve All Records
    √ GET http://localhost:3369/
  Retrieve N Records
    √ GET http://localhost:3369/10/
  Search for Records
    √ GET http://localhost:3369/search
  Update Record
    √ PUT http://localhost:3369/update/L1SEzUhTQ3WNPyKMO1vA
  Delete Record
    √ DELETE http://localhost:3369/delete/uLAkVuFVWvLN1OGp21RQ
  Logout User
    √ GET http://localhost:3369/user/logout

  Tests complete
    8 passing (61 ms)

Command Line Options

The CLI is further configured with the following command line options:

Usage: rester [options] [command]

General Options:
  -V, --version             Output the version number
  -h, --help                Output usage information

Commands:
  postman [options] <file>  Send test items from a postman export file

Postman Options:
  -t, --test <name>         Send only named test

Getting Started

npm install '@byrdware/rester' -D
mkdir rest
$EDITOR rest/simple-rest.js

In your editor:

module.exports = {
  info: {
    name: 'My Test Suite'
  },
  item: [{
    name: 'Login',
    request: {
      method: 'POST',
      header: [{
        key: 'Content-Type',
        value: 'application/json',
      }],
      body: {
        raw: '{ "email": "nobody@nowhere.net", "password": "0123456789abcdef" }'
      },
      url: {
        protocol: 'http',
        host: [ 'localhost' ],
        port: '80',
        path: [ 'login' ]
      }
    }
  }]
};

Run tests from a shell:

$ ./node_modules/.bin/rester postman rest/simple-rest.js

  Login
    √ POST http://localhost:80/login

  Tests complete
    1 passing (283 ms)

Add a "rest" script to package.json:

"scripts": {
  "test": "mocha",
  ...
  "rest": "rester postman ./rest/simple-rest.js"
}

Then run your tests with:

npm run rest

File Format

This tool currently supports a file format with a minimal subset of the schema described here:

https://schema.getpostman.com/json/collection/v2.1.0/collection.json

Unit Testing the Rester Distribution

Clone the github repository:

git clone https://github.com/byrdware/rester.git

and then:

npm test

or, alternately:

node test/www
npm start

Contributing

In lieu of a formal style guide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code.