I am currently working on an automation suite and facing issues with timing. Is there a definitive way to check if an element is not just present in the DOM, but actually visible to the user? I've tried isDisplayed() but it sometimes returns true before the element is fully interactable. What is the best practice for this scenario?
3 answers
To handle this effectively, you should avoid simple boolean checks and instead utilize Explicit Waits with the ExpectedConditions class. Specifically, use visibilityOfElementLocated. This ensures the element is present in the DOM and has a height/width greater than zero. In my experience, pairing this with a FluentWait to ignore NoSuchElementException during the polling period makes your scripts significantly more resilient against asynchronous loading issues and AJAX calls common in modern web apps.
Does the isDisplayed() method account for elements that are hidden behind other layers or have an opacity of zero in your specific CSS framework?
You should always prefer WebDriverWait over Thread.sleep(). It specifically waits for the ExpectedConditions.visibilityOf() state, which is much more efficient for CI/CD pipelines.
I completely agree with Linda. Using explicit waits is a cornerstone of the Page Object Model (POM) pattern. It reduces flakiness and ensures that the automation suite runs as fast as the application allows, rather than waiting for hard-coded timers to expire.
That’s a great point, David. Standard Selenium methods like isDisplayed() check if the element is hidden via CSS display:none or visibility:hidden. However, if an element is obscured by an overlay or has zero opacity, Selenium might still consider it "displayed." For those edge cases, you might need to use JavaScriptExecutor to check the element's computed style or use elementToBeClickable to ensure it's truly interactable.