Security News
Cloudflare Adds Security.txt Setup Wizard
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
@jest/globals
Advanced tools
The @jest/globals package provides access to Jest's global variables and functions, making it easier to write tests by providing a consistent testing environment. This package is particularly useful when working with ES modules, where Jest's globals are not automatically available. It includes functionalities such as test definition, mocking, and assertions.
Defining tests
Allows the definition of test cases. The `test` function is used to define a block of code that tests a specific part of your application. The `expect` function is used to make an assertion about a particular value.
import { test, expect } from '@jest/globals';
test('adds 1 + 2 to equal 3', () => {
expect(1 + 2).toBe(3);
});
Mocking functions
Enables the mocking of functions, allowing you to simulate the behavior of your code's dependencies. This is useful for isolating the code under test and controlling its environment.
import { jest } from '@jest/globals';
const mockFn = jest.fn();
mockFn.mockReturnValue('mocked value');
expect(mockFn()).toBe('mocked value');
Grouping tests
Provides a way to group related tests using the `describe` function. This helps in organizing tests, especially when testing complex applications.
import { describe, test, expect } from '@jest/globals';
describe('math operations', () => {
test('adds 1 + 2 to equal 3', () => {
expect(1 + 2).toBe(3);
});
test('subtracts 2 - 1 to equal 1', () => {
expect(2 - 1).toBe(1);
});
});
Mocha is a feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple. It's similar to @jest/globals in providing a testing structure (describe and it blocks), but it requires additional libraries like Chai for assertions and Sinon for spies, mocks, and stubs.
Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. It's similar to the assertion part of @jest/globals, offering a range of assertions via expect, should, and assert interfaces. However, it does not provide test runner or mocking capabilities.
Sinon provides standalone test spies, stubs, and mocks for JavaScript. Works with any unit testing framework. It's similar to the mocking functionality of @jest/globals but is focused solely on the aspect of mocking, without an integrated test runner or assertion library.
27.5.1
[jest-config]
Support comments in JSON config file (#12316)[pretty-format]
Expose ConvertAnsi
plugin (#12308)[expect]
Add type definitions for asymmetric closeTo
matcher (#12304)[jest-cli]
Load binary via exported API (#12315)[jest-config]
Replace jsonlint
with parse-json
(#12316)[jest-repl]
Make module importable (#12311 & #12315)[*]
Avoid anonymous default exports (#12313)FAQs
Unknown package
The npm package @jest/globals receives a total of 19,909,008 weekly downloads. As such, @jest/globals popularity was classified as popular.
We found that @jest/globals demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. 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.
Security News
Cloudflare has launched a setup wizard allowing users to easily create and manage a security.txt file for vulnerability disclosure on their websites.
Security News
The Socket Research team breaks down a malicious npm package targeting the legitimate DOMPurify library. It uses obfuscated code to hide that it is exfiltrating browser and crypto wallet data.
Security News
ENISA’s 2024 report highlights the EU’s top cybersecurity threats, including rising DDoS attacks, ransomware, supply chain vulnerabilities, and weaponized AI.