transaction testing with Nightmare.js and chai template (pseudo code)

.gitlab-ci.yml

image: node:7.7.1

stages:
  - test

before_script:
  - npm set progress=false
  - npm install > npm-install.log 2>&1

transaction testing:
  stage: test
  only:
    - develop
  script:
    - node test.js --url=$URL
  tags:
    - docker
  artifacts:
    paths:
      - npm-install.log
    expire_in: 72 hrs

README

use the package.json file or do

`npm i yargs nightmare chai -S`

package.json

{
  "name": "your project",
  "version": "1.0.0",
  "description": "chai and nightmare.js unit testing",
  "dependencies": {
    "primus": "*",
    "async": "~0.8.0",
    "express": "4.2.x",
    "winston": "git://github.com/flatiron/winston#master",
    "bigpipe": "bigpipe/pagelet",
    "plates": "https://github.com/flatiron/plates/tarball/master"
  }
}
  

test.js

const yargs = require('yargs').argv
const Nightmare = require('nightmare');
const should = require('chai').should();

// get the url from the cli argument
const { url } = yargs

describe('Transaction testing', () => {

  // the form should at least be present
  it('Should render the form', (done) => {
    new Nightmare().goto(url)
      .evaluate(
        () => {
          return document.querySelectorAll('form#formID').length
        },
        (result) => {
          result.should.equal(1)
          done()
        })
      .run()
  })

  // when entering in an incorrect card number
  // make sure the "wrong card number" error is present
  it('Should throw an error on wrong card number', (done) => {
    new Nightmare().goto(url)
      .type('input[name="card-number"]', '1234-AAAA-1234-1234-_#@!')
      .click('input[type="submit"]')
      .wait('.error') // wait until the element .error is present
      .evaluate(
        () => {
          return document.querySelector('.error-message')
        },
        (result) => {
          result.should.equal("wrong card number")
          done()
        })
      .run()
  })
    
})