Head-to-Head: Polly.JS vs Nock Analysis

@pollyjs/core

v6.0.6(11 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 9Monthly npm downloads

@pollyjs/core is a powerful and flexible JavaScript library for recording, replaying, and stubbing HTTP interactions in tests. It allows developers to create reliable and deterministic tests by capturing and replaying network requests and responses. With support for various adapters and plugins, Polly.js can be easily integrated into different testing frameworks and environments.

Alternatives:
nock+
axios-mock-adapter+
miragejs+
msw+
fetch-mock+
pretender+
sinon+
intercept-stdout+
jest-mock+
testdouble+

Tags: javascripttestinghttpmockingnetwork

nock

v13.5.4(4 months ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 3Monthly npm downloads

Nock is a powerful HTTP mocking and expectations library for Node.js. It allows you to simulate HTTP requests and responses, making it ideal for testing code that interacts with external APIs or services. With Nock, you can define custom HTTP endpoints, set up response behaviors, and verify that your code makes the expected HTTP calls.

Alternatives:
axios-mock-adapter+
miragejs+
msw+
fetch-mock+
pretender+
sinon+
intercept-stdout+
node-mocks-http+
supertest+
pollyjs+

Tags: node.jshttpmockingtestingapi

Fight!

Popularity

Both @pollyjs/core and nock are popular npm packages for mocking HTTP requests. However, nock has been around for longer and has a larger user base and community support.

Functionality

@pollyjs/core is a powerful and flexible HTTP recording and playback library that allows you to record and replay HTTP requests. It supports various request/response matching strategies and provides advanced features like request modification and response manipulation. nock, on the other hand, focuses on intercepting and mocking HTTP requests, allowing you to define custom responses for specific requests.

Integration

@pollyjs/core is primarily designed for integration with testing frameworks like Jest, Mocha, and Jasmine. It provides a seamless integration experience and offers plugins for different testing frameworks. nock, on the other hand, can be used in both testing and non-testing scenarios and can be integrated into any Node.js application.

Flexibility

@pollyjs/core provides more flexibility in terms of request/response matching and manipulation. It allows you to define complex matching criteria and modify requests and responses on the fly. nock, on the other hand, provides a simpler API for defining request/response mocks but may be less flexible in certain scenarios.

Community Support

Both @pollyjs/core and nock have active communities and receive regular updates. However, nock has been around for longer and has a larger community, which means it may have more resources, examples, and community support available.

Documentation

Both packages have well-documented APIs and provide examples and guides to help developers get started. However, nock's documentation is more extensive and covers a wider range of use cases and scenarios.