Product
Introducing SSO
Streamline your login process and enhance security by enabling Single Sign-On (SSO) on the Socket platform, now available for all customers on the Enterprise plan, supporting 20+ identity providers.
jest-util
Advanced tools
Package description
The jest-util package provides utility functions for Jest, a popular JavaScript testing framework. It includes a variety of helpers and tools that are used internally by Jest but can also be useful for developers working with or extending Jest tests.
Console Replacement
This feature allows for the creation of a custom console that buffers all logs. This is useful for controlling and testing console output during test runs.
const { BufferedConsole } = require('jest-util');
const customConsole = new BufferedConsole();
customConsole.log('Hello, this is a buffered log.');
Error Formatting
This function formats execution errors for display in Jest's output, providing a standardized view of test errors, including stack traces.
const { formatExecError } = require('jest-util');
const error = new Error('Test error');
const config = {rootDir: '/path/to/project', testMatch: []};
console.log(formatExecError(error, config, {noStackTrace: false}, undefined, true));
Test Path Normalization
This utility normalizes file paths for glob matching, which is particularly useful on Windows where path separators differ.
const { replacePathSepForGlob } = require('jest-util');
const path = 'path\to\test\file.js';
console.log(replacePathSepForGlob(path));
Chai is an assertion library similar to jest-util in that it is used to help with testing JavaScript applications. Unlike jest-util, Chai focuses more on providing a rich set of assertions rather than utilities for managing Jest environments or outputs.
Mocha is a test framework that, like Jest, can utilize utility packages for enhanced testing capabilities. While jest-util specifically supports Jest, Mocha has its own set of utilities and plugins that serve a similar purpose but are tailored to Mocha's ecosystem.
Sinon provides standalone test spies, stubs, and mocks for JavaScript. It complements jest-util by offering more focused functionalities for creating and managing test doubles, which can be used alongside or independently of Jest.
Changelog
27.4.0
[expect]
Enhancing the toHaveProperty
matcher to support array selection (#12092)[jest-core]
Add support for testResultsProcessor
written in ESM (#12006)[jest-diff, pretty-format]
Add compareKeys
option for custom sorting of object keys (#11992)[jest-mock]
Add ts-jest
mock util functions (#12089)[expect]
Allow again expect.Matchers
generic with single value (#11986)[jest-circus, jest-jasmine2]
Avoid false concurrent test failures due to unhandled promise rejections (#11987)[jest-config]
Add missing slash
dependency to package.json
(#12080)[jest-core]
Incorrect detection of open ZLIB handles (#12022)[jest-diff]
Break dependency cycle (#10818)[jest-environment-jsdom]
Add @types/jsdom
dependency (#11999)[jest-environment-jsdom]
Do not reset the global.document too early on teardown (#11871)[jest-transform]
Improve error and warning messages (#11998)[jest-worker]
Pass execArgv
correctly to worker_threads
worker (#12069)FAQs
This packages is a collection of utilities and helper functions
The npm package jest-util receives a total of 43,544,280 weekly downloads. As such, jest-util popularity was classified as popular.
We found that jest-util demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago.ย It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Product
Streamline your login process and enhance security by enabling Single Sign-On (SSO) on the Socket platform, now available for all customers on the Enterprise plan, supporting 20+ identity providers.
Security News
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
Security News
As cyber threats become more autonomous, AI-powered defenses are crucial for businesses to stay ahead of attackers who can exploit software vulnerabilities at scale.