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

@netly/jest-sorted-by

v1.0.6

Published

Sort array validation for jest

Downloads

70

Readme

Jest Sorted

Inspired by jest-sorted. This packages extends jest.expect with 1 custom matcher, toBeSortedBy

Examples

expect([{ id: 1 }, { id: 2 }, { id: 3 }]).toBeSortedBy({ key: 'id' });
expect([{ count: '10' }, { count: '5' }]).toBeSortedBy({
  key: 'count',
  descending: true,
  coerce: true,
});

Installation

With npm:

npm install -D @netly/jest-sorted-by  

With yarn:

yarn add -D @netly/jest-sorted-by  

Setup

Jest >v24

Add @netly/jest-sorted-by to your Jest setupFilesAfterEnv configuration. See for help

For example, add the following to your package.json at the root level. See configuring jest for more info.

"jest": {
  "setupFilesAfterEnv": ["@netly/jest-sorted-by"]
}

If you are already using another test framework, like jest-chain, then you should create a test setup file and require each of the frameworks you are using.

For example:

// ./testSetup.js
require('@netly/jest-sorted-by');
require('jest-chain');
require('any other test framework libraries you are using');

Then in your Jest config:

"jest": {
  "setupTestFrameworkScriptFile": "./testSetup.js"
}

Usage

options

The following options can be passed as an object to alter the assertions behavior

  • descending : boolean - Asserts the array is sorted in descending order. (Defaults to false)
expect([3, 2, 1]).toBeSortedBy({ descending: true });
  • key : string - Will use the value from the passed key in an array of objects.
expect([{ id: 1 }, { id: 2 }, { id: 3 }]).toBeSortedBy({ key: 'id' });
  • strict : boolean - Fails the assertion if a passed key option does not exist in the object. (Defaults to false) Note: will use undefined for all missing keys and equal values are considered sorted.
expect([{ id: 1 }, { id: 2 }, { id: 3 }]).toBeSortedBy({
  key: 'nothing',
  strict: false,
});
  • comparator : function - A custom function to use for comparison. (Default comparison is a simple greater / less than). In some cases you may want to check values are sorted by a different condition. The function will take 2 elements from the array (a,b) and should return:

    • A negative number if a comes first.
    • A positive number if b comes first.
    • 0 if the values are sorted equally.

See the compareFunction of Array.prototype.sort for more info.

const doubleDigitsFirst = (a, b) => {
  if (a >= 10 && b < 10) {
    return -1;
  }
  if (b >= 10 && a < 10) {
    return 1;
  }
  return 0;
};

expect([10, 20, 1, 2]).toBeSortedBy({
  compare: doubleDigitsFirst,
});