Unit Test Generator for Code, also known as Brewtest.co, is a GPT built on top of ChatGPT. This tool specializes in generating complete unit test files for code blocks in several programming languages. Its operations span across a variety of languages including Python, Java, C#, and JavaScript. By inserting a code block into the GPT, it can formulate precise unit tests aimed at thoroughly vetting the functionality of that block of code.A critical component of software development is ensuring that individual units of software work as expected, which is a task this GPT can significantly simplify. It dynamically generates the test cases based on the input code provided by the user. This process is accomplished by analyzing the given function or method in the code block and creating respective unit tests that scrutinize each possible functionality. This tool also integrates seamlessly with ChatGPT Plus. To utilize this tool, users are required to sign up for an account. As for interaction, it comes bundled with some context-appropriate prompt starters, such as 'Generate unit tests for this Python function:', 'Please create unit tests for this Java method:', 'I need unit tests for this C# code block:', and 'Could you provide unit tests for this JavaScript function?'. Overall, it proves to be a highly effective tool for developers aiming to expedite their software testing processes, prioritize functional accuracy, and improve their code quality.