Newman - run collections in paralel

In

Create the new npm project

  • Intialize a proejct

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    npm init -y

  • Install dependencies: 

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    npm i async newman path

  • Result example

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    {
      "name": "newman_parallel",
      "version": "1.0.0",
      "description": "",
      "main": "index.js",
      "scripts": {
          "start": "node index.js"
      },
      "keywords": [],
      "author": "",
      "license": "ISC",
      "dependencies": {
          "async": "^3.1.0",
          "newman": "^4.5.6",
          "path": "^0.12.7"
      }
    }

Scripting

Steps

  1. Update the path for your postman collection and environment
  2. Sspecify the number of concurrent run you want to launch with the constant PARALLEL_RUN_COUNT
  3. Execute it with npm start

Example script

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const path = require('path')
const async = require('async')
const newman = require('newman')

const PARALLEL_RUN_COUNT = 3

const parametersForTestRun = {
  collection: path.join(__dirname, 'postman/postman_collection.json'),
  environment: path.join(__dirname, 'postman/localhost.postman_environment.json'),
  reporters: 'cli'
};

parallelCollectionRun = function (done) {
  newman.run(parametersForTestRun, done);
};

let commands = []
for (let index = 0; index < PARALLEL_RUN_COUNT; index++) {
  commands.push(parallelCollectionRun);
}

// Runs the Postman sample collection thrice, in parallel.
async.parallel(
  commands,
  (err, results) => {
    err && console.error(err);
    results.forEach(function (result) {
      var failures = result.run.failures;
      console.info(failures.length ? JSON.stringify(failures.failures, null, 2) :
        '${result.collection.name} ran successfully.');
    });
  });