Popup messages using Selenium Web Driver

Question

I'm testing a website with validation etc. when the user types something incorrectly in each field and clicks save, a popup with the information appears.

I want to show a pop-up message when the user types something incorrectly in each field and clicks save. All that information is in the functions in the code (there is no JSON) file with them. How can I test them using selenium?

Answer 1

Try to get text From Pop Up:

String popUpText = driver.switchTo().alert().getText();

 And then Accept Pop up Message:

driver.switchTo().alert().accept();