Warning

This is in a prototype / proof-of-concept stage 🐱

🤖 playwright-assets

A utility to monitor asset size in dynamic applications using playwright

Usage

Installation

npm install @nicktomlin/playwright-assets

Within a test

import {assetExpect, collectStats} from "@nicktomlin/playwright-assets"

test("should have a small bundle", async ({page}) => {
  const stats = await collectStats(
    page,
    async () => page.goto("https://www.google.com")
  )
  
  assetExpect(stats).toHaveAssetsLessThan('script', 180, { unit: "kb" })
})

As a library

import {collectStats} from "@nicktomlin/playwright-assets"
import { chromium } from 'playwright';

const browser = await chromium.launch()
const page = await browser.newPage();
const stats = await collectStats(
    page,
    async () => page.goto("https://www.google.com")
)

console.log(stats)

CLI

Currently, there's no plans for a cli given how complex this setup can be. If this would be of interest to you, please submit a PR with a design proposal

Prior art

• https://github.com/andersonba/puppeteer-assets