Head-to-Head: Polly.JS vs Mountebank 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

mountebank

v2.9.1(10 months ago)

This package is actively maintained.The package doesn't have any types definitionsNumber of direct dependencies: 22Monthly npm downloads

Mountebank is a powerful open-source tool used for creating mock servers and service virtualization. It allows developers to simulate various types of APIs, services, and protocols to facilitate testing and development. With Mountebank, you can define custom behaviors, responses, and conditions for your mock services, making it ideal for testing complex scenarios and edge cases.

Alternatives:
wiremock+
nock+
miragejs+
json-server+
pact+
dyson+
pretender+
stubby4node+
interfake+
fake-rest-server+

Tags: mock serverservice virtualizationtestingdevelopmentAPI

Fight!

Functionality

Both @pollyjs/core and mountebank are powerful tools for testing and mocking HTTP requests. @pollyjs/core is specifically designed for browser automation and provides a comprehensive set of features for recording, replaying, and stubbing HTTP interactions. mountebank, on the other hand, is a versatile tool that can be used for creating mock servers and simulating various protocols and behaviors.

Integration

While @pollyjs/core is primarily focused on browser automation, it can also be used in Node.js environments. It integrates well with popular testing frameworks like Jest, Mocha, and Cypress. mountebank, on the other hand, is a standalone tool that can be used with any programming language or testing framework. It provides a RESTful API for creating and managing mock servers.

Developer Experience

Both packages have good developer experience, but they have different approaches. @pollyjs/core provides a simple and intuitive API for recording and replaying HTTP interactions, making it easy to write tests for browser automation. mountebank, on the other hand, requires more configuration and setup, but it offers more flexibility and control over the mock server behavior.

Community and Support

Both @pollyjs/core and mountebank have active communities and provide good documentation. However, @pollyjs/core has gained more popularity and has a larger user base, which means it may be easier to find resources and community support for any issues or questions that arise.

Scalability

In terms of scalability, mountebank is more suitable for complex scenarios where you need to simulate multiple services and protocols. It allows you to create elaborate mock servers with custom behaviors. @pollyjs/core, on the other hand, is more focused on browser automation and is well-suited for testing single-page applications and interacting with APIs.