The TestNG framework is an open-source testing framework for Java that provides enhanced functionalities and flexibility compared to the traditional JUnit framework. TestNG can be used for unit testing, integration testing, and functional testing of Java applications. The TestNG GitHub repository is the official source for the TestNG framework and its source code.

You can find the TestNG GitHub repository at the following URL:

https://github.com/cbeust/testng

On the TestNG GitHub repository, you can find the latest source code, documentation, and other resources related to the TestNG framework. The repository includes different branches representing different versions of TestNG, allowing you to explore the codebase for a specific version.

Here are some key resources available in the TestNG GitHub repository:

1. Source Code: The repository contains the complete source code of the TestNG framework, organized into different directories and packages. You can browse the codebase to understand the implementation details and contribute to its development.

2. Issues: The Issues section of the repository allows you to report bugs, suggest enhancements, or ask questions related to TestNG. You can search through existing issues to find answers to common questions or contribute to the discussion.

3. Wiki: The TestNG repository wiki provides additional documentation and guides to help you understand and use the TestNG framework effectively. The wiki covers various topics such as installation, configuration, annotations, test execution, and reporting.

4. Contributing: The repository includes guidelines for contributing to the TestNG project. If you’re interested in contributing to the framework, you can follow the guidelines to submit bug fixes, new features, or documentation improvements.

5. Releases: The Releases section provides access to the official releases of TestNG. You can download the released versions, view release notes, and check for any updates or changes.

By visiting the TestNG GitHub repository, you can explore the source code, contribute to the project, and access resources that can help you get started with TestNG and enhance your test automation capabilities in Java.