Open-source alternatives to Shallow Render

Run TAP tests at Sauce Labs. A more opinionated smokestack. airtap is a another, well-known alternative.

Extend Chai with support for asserting JSX equality & contents with support for Preact Components.

Angular Component Tests made easy

Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup

A repo with guides and examples for unit tests in Angular applications using ng-mocks.

Pipe your JavaScript into a browser of your choosing:

A developer tool with two jobs:

(Click for a live demo)

Flake8-AAA

Are you using mocks in your code and want to ensure that you are not accessing or calling methods that the mocked objects don't have? Using mocks incorrectly can lead to bugs in your code and falsely passing tests. To avoid this, flake8-mock-spec linter has been created to enforce the use of the…

Jest is a JavaScript testing framework designed for writing and running automated test suites to verify the correctness of JavaScript and TypeScript code. It functions as a comprehensive toolset that integrates a test runner, a mocking and spying library, a snapshot testing tool, and a code coverage tool. The framework distinguishes itself through snapshot testing, which records the serialized state of data structures to detect regressions in future executions. It also includes a mocking and spying library for simulating external dependencies and tracking function calls to isolate code during

This project is a NestJS testing boilerplate and reference implementation. It provides a structured monorepo workspace designed to demonstrate various architectural and testing patterns for NestJS applications. The project features a dockerized test environment and an integration testing framework. It includes a dedicated GraphQL API test suite to validate graph-based endpoints and schemas for queries and mutations. The suite covers a layered testing hierarchy consisting of unit, integration, and end-to-end tests. These capabilities extend across the application and data layers, including da

Library for running Xamarin.Forms inside of unit tests

Flake8 Unittest Assertion Checker

Effortless, stable test IDs for Angular apps, controlled by testers — not code.

Schema Mocking Made Easy

Integration testing for Angular with black-box approach, async control, and user-centric testing concept

ArchUnitTS is an architecture testing library. Specify and ensure architecture rules in your TypeScript app. Easy setup and pipeline integration.

A flake8 plugin checking common style issues or inconsistencies with pytest-based tests.

A powerful Angular HTTP interceptor for mocking API responses with support for dynamic data generation, path matching, response delays, and simulated file operations. Perfect for development and testing.

tappy

Playwright is a comprehensive browser automation framework designed for end-to-end testing and web workflow automation. It provides a unified API to drive web applications across multiple browser engines, enabling developers to simulate complex user interactions, perform web scraping, and validate application behavior in consistent, isolated environments. The framework distinguishes itself through a web-first testing paradigm that prioritizes stability and resilience. By utilizing an auto-waiting actionability engine and accessibility-tree-based locators, it eliminates common sources of test

When testing Angular applications, you often need to isolate a component or service under test from its Angular dependencies. In the past, this meant manually creating stub components, using NOERRORSSCHEMA, TestBed.override... functions, third party libraries, or creating mock entities manually.…

MSW is a JavaScript API mocking library and integration testing tool designed to intercept network requests at the network level. It allows for the definition of mock data and status codes using routing syntax to simulate server responses without requiring changes to the application source code. The project utilizes a service worker to proxy API calls in the browser, providing a mechanism for isolated frontend development and testing. It employs platform-specific network adapters to maintain a consistent mocking interface across both browser and Node.js environments. The library covers a ran