CodiumAI is an artificial intelligence code testing tool that supports ‌Python, JavaScript, and TypeScript in VScode & JetBrains IDEs, and​ can handle large and complex code. It generates challenging tests (and easy, too!) that help you comprehend how your code behaves‌ and discover boundary cases and suspicious behaviors. It also provides explanations of the tests generated, so you can avoid incorrect results and enhance your code’s functionality.