Ensuring application quality through testing and issue detection is crucial for both customers and reputation, but can be time-consuming. GitLab Duo Workflow, an AI tool, offers assistance with development tasks like adding unit tests. This tutorial illustrates how to use GitLab Duo Workflow on a sample Java project. The process involves opening the project in VS Code and initiating a feature branch. Users then launch GitLab Duo Workflow and provide a prompt to generate unit tests for a specific Java class. After reviewing and approving the generated plan, the tool executes the plan, creating a new test file. If import errors arise, a new workflow can be initiated to fix them. GitLab Duo Workflow analyzes the issue, proposes a solution, and makes necessary project updates, such as modifying the pom.xml file. This automated process saves time and effort, allowing developers to focus on innovation. The provided example showcases how GitLab Duo Workflow can streamline the testing process. The tool is currently in private beta; users can join the waitlist.