399 How do I debug “Error: spawn ENOENT” on node.js? Below is a sample we can use for testing: Line 1 – Import the k6/http library into your script.js. Installation. In this example, you can start any servers & clients. Installation. LoadTest loadtest. To use this tool you need to have NodeJS installed on your machine, then you need to run this command: npm install -g loadtest. For writing the performance test, we will be using 3 npm modules. As you can see in the load test and workers logs, the load test app will create sessions and will add participants into them following a round-robin scheduling.. Load test … puppeteer-loadtest. The npm start script will start the app on your configured PORT, ... Below is an example of two different users sending and receiving messages in realtime — great! For illustration proporses here is an example composed by 2 workers and the load test app all of them running locally. puppeteer-loadtest provides a simple way to launch multiple puppeteer instances in parallel to run a simple load test on your site. Install via npm: $ npm install -g puppeteer-loadtest Usage. Line 2 – Import sleep, a function that gives a time difference after every hit. Write performance test using loadtest. Install via npm: $ npm install -g puppeteer-loadtest Usage. should is a very intuitive assertions library. puppeteer-loadtest provides a simple way to launch multiple puppeteer instances in parallel to run a simple load test on your site. Line 5 – Include your web page link in the get function, which will be under load test. Runs a load test on the selected HTTP or WebSockets URL. LoadTest is by far the simplest and easiest tool from this list to setup and use. Installation. Line 4 – Start your basic function where you write your load test case. $ npm run demo simple: Source code is available on Github. loadtest is the module used for gathering the performance metrics; Below is the test code: The API allows for easy integration in your own tests. Since we only ran for 5 seconds, there are just 5 samples—the Min value and the 1% and 2.5% percentiles are actually all the same sample. In this article, I will show how to use Artillery to load test your application.. What is Artillery? Artillery is a modern, powerful & easy-to-use solution for load testing and functional testing.. It´s built with NodeJS and it´s open source. mocha is one of the most widely used framework for testing javascript applications. All you need to do is to open a command line and run: What's the difference between dependencies, devDependencies and peerDependencies in npm package.json file? 2. The first tool is an npm package called loadtest. ... With this example, you can start a load test. With longer durations these numbers will differ more. Sample test execution. ... Advanced socket.IO load test. Server & client nodes. To run a basic load test, just supply the name of a puppeteer script to run: $ puppeteer-loadtest --file=sample.js puppeteer-loadtest. In the above example, 4.78 MB was downloaded in 1 second in the worst case (slowest 1%). To run a basic load test, just supply the name of a puppeteer script to run: $ puppeteer-loadtest --file=sample.js npm install -g @colyseus/loadtest $ colyseus-loadtest --help Options: --endpoint: WebSocket endpoint for all connections (default: ws://localhost:2567) --room: room handler name --numClients: number of connections to open Example: colyseus-loadtest example/bot.ts --endpoint ws://localhost:2567 --room state_handler Scripting The server & client prints how many requests executed in a second. 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