How to Test That an Element Does Not Have a `hidden` Attribute in Playwright?

The text discusses the concept and handling of hidden elements in web development, explaining how elements may be present in the Document Object Model (DOM) but not visible on a webpage. It outlines various methods for making elements hidden, such as using CSS properties like `display: none` and `visibility: hidden`, the HTML `hidden` attribute, opacity settings, and off-screen positioning. In the context of Playwright, a testing framework, the text describes how to interact with these hidden elements using various methods and assertions available in Playwright’s Assertion Library. The text also introduces testRigor, an AI-based testing tool that allows users to automate test scenarios efficiently using plain English statements, offering a comparison with other testing tools like Selenium and Playwright. Additionally, the article emphasizes the importance of understanding element behavior in test cases and suggests that using advanced automation tools can simplify the validation process for hidden elements, reducing maintenance time and improving test automation efficiency.