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emailDioptra is a software test platform for assessing the trustworthy characteristics of artificial intelligence (AI). Trustworthy AI is: valid and reliable, safe, secure and resilient, accountable and transparent, explainable and interpretable, privacy-enhanced, and fair - with harmful bias managed1. Dioptra supports the Measure function of the NIST AI Risk Management Framework by providing functionality to assess, analyze, and track identified AI risks.
PurpleLab is an efficient and readily deployable lab solution, providing a swift setup for cybersecurity professionals to test detection rules, simulate logs, and undertake various security tasks, all accessible through a user-friendly web interface.
Envie de manipuler du lab à gogo, alors cette repository devrait vous plaire @ Laurent Minne's LinkedIn 
Test your front-end against a real API.
A hosted REST-API ready to respond to your AJAX requests.
Reqres simulates real application scenarios. If you want to test a user authentication system, Reqres will respond to a successful login/register request with a token for you to identify a sample user, or with a 403 forbidden response to an unsuccessful login/registration attempt.
BigTesty: integration testing for BigQuery.
BigTesty is a framework that allows to create Integration Tests with BigQuery on a real and short-lived Infrastructure.
Integration and End-to-End tests are a robust way to validate if SQL queries work as expected.
There is no an emulator in this case and the queries are executed directly in the BigQuery Engine.
email & SMTP testing tool with API for developers.
Mailpit is a small, fast, low memory, zero-dependency, multi-platform email testing tool & API for developers. It acts as an SMTP server, provides a modern web interface to view & test captured emails, and contains an API for automated integration testing.
Testcontainers is an open source framework for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that can run in a Docker container.
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Run Locally, Deploy Globally
Develop and test your AWS applications locally to reduce development time and increase product velocity. Reduce unnecessary AWS spend and remove the complexity and risk of maintaining AWS dev accounts
Accelerating your DevOps with pyATS & Genie.
pyATS is an end-to-end DevOps automation ecosystem. Agnostic by design, pyATS enable network engineers to automate their day-to-day DevOps activities, perform stateful validation of their device operational status, build a safety-net of scalable, data-driven and reusable tests around their network, and visualize everything in a modern, easy to use dashboard.
Open-source Solution for AI Quality.
The testing framework dedicated to ML models, from tabular to LLMs
Scan AI models to detect risks of biases, performance issues and errors. In 4 lines of code.
Framework independent visual testing library.
Mugshot is a node library for doing visual regression testing. The way screenshots are taken, processed, compared and stored is entirely customizable. You can use it to write visual regression tests for websites, mobile apps, native apps etc. Moreover, Mugshot doesn't impose any preferences on how you write or execute the tests, it just gives you an assertion that you can call however and whenever you want.
Playwright enables reliable end-to-end testing for modern web apps.
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API. Playwright is built to enable cross-browser web automation that is ever-green, capable, reliable and fast.
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Expressive fixtures generator.
Relying on FakerPHP/Faker, Alice allows you to create a ton of fixtures/fake data for use while developing or testing your project. It gives you a few essential tools to make it very easy to generate complex data with constraints in a readable and easy to edit way, so that everyone on your team can tweak the fixtures if needed.
A fully functional local cloud stack. Develop and test your cloud and serverless
apps offline!
LocalStack is an easy-to-use test/mocking framework for developing cloud applications. Using LocalStack, you can spin up a local test environment in seconds, and get the same functionality you would get from a real AWS environment.
atoum, the modern, simple and intuitive PHP test framework.
atoum is a simple, modern and intuitive unit testing framework for PHP! It is completely standalone, everything is available and works out of the box.
GNS3 allows to emulate, configure, test and troubleshoot virtual and real networks. GNS3 allows you to run a small topology consisting of only a few devices on your laptop, to those that have many devices hosted on multiple servers or even hosted in the cloud.
Simple and complete testing utilities that encourage good testing practices
JavaScript Web Testing and Component Testing Framework. Test. Automate. Accelerate.
With Cypress, you can easily create tests for your modern web applications, debug them visually, and automatically run them in your continuous integration builds.
PHP Mutation Testing Framework.
Mutation Testing is a fault-based testing technique which provides a testing criterion called the Mutation Score Indicator (MSI). The MSI can be used to measure the effectiveness of a test set in terms of its ability to detect faults.
BDD Framework for .NET.
Enhance your automated tests The free & open source BDD-Framework for .NET
🧙♀️ Fast low-code testing — create, run tests and get alerts 
Create test in <60 secs 
Better open source alternative to selenium, cypress and puppeteer.
Crusher is a new fast testing framework, it's opinionated and takes a low-code first approach. Create tests by browsing your website and adding assertion when needed.