npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@zappar/jest-console-logs

v1.1.1

Published

Capture and test console logs using jest/puppeteer

Downloads

58

Readme

jest-console-logs

Build

This library contains some handy console functions which aid jest-puppeteer tests.

You can find some examples in action over at https://github.com/zappar-xr/jest-console-logs/tree/master/tests

Table Of Contents

Starting Development

You can use this library by installing from NPM for use in a jest-puppeteer project.

NPM

Run the following NPM command inside your project directory:

npm install --save-dev @zappar/jest-console-logs

Then import the library into your tests:

import * as util from '@zappar/jest-console-logs';

Usage

Expecting Console Logs (Sequential)

util.expectSequential resolves once provided logs are detected before the timeout. You may provide a set of logs to be ignored.

  it('expectConsoleLogs', async () => {
    const page = await browser.newPage();
    page.goto(url);
    await util.expectSequential(
      {
        expected: [
          'log 1',
          'log 2',
          'log 3',
        ],
        page,
        timeoutMs: 30000,
        ignore: new Set([
          '[HMR] Waiting for update signal from WDS...',
          '[WDS] Hot Module Replacement enabled.',
          '[WDS] Live Reloading enabled.',
        ]),
      },
    );
    await new Promise((resolve) => setTimeout(resolve, 1000));
    await page.close();
  });

Expecting Console Logs (Unordered)

util.expectLogs resolves once provided logs are detected before the timeout.

  it('expectUnorderedLogs', async () => {
    const page = await browser.newPage();
    page.goto(url);
    await util.expectLogs({
      expected: [
        'log 1',
        'log 3',
        'log 2',
      ],
      timeoutMs: 1000,
      page,
    });
  });

Catching errors:

  it('expectUnorderedLogsErrors', async () => {
    const page = await browser.newPage();
    page.goto(url);
    try {
      await util.expectLogs({
        expected: [
          'log 1',
          'log 35',
          'log 2',
        ],
        timeoutMs: 1000,
        page,
      });
    } catch (e) {
      expect(e.message).toEqual('Could not find expected console logs: log 35');
    }
  });

Waiting for console logs

util.waitForConsoleLog takes a log to wait for, the page and a timeout.

 it('waitForConsoleLog', async () => {
    const page = await browser.newPage();
    page.goto(url);
    await util.waitForConsoleLog('log 5', page, 10000);
  });