Automated testing is like having a robot play with your toy for you. When you want to make sure your toy is working properly, you can ask the robot to do different things with it over and over again. For example, you might want to see if the toy will still bounce after being squeezed 100 times or if it still lights up after being dropped 20 times.
This is like how automated testing works for computer programs. Instead of a toy, there is a computer program that someone has made. And instead of a robot, there is software that is set up to test the program. The software can do things like click buttons, type in text, and see if the program does what it is supposed to do.
Automated testing is important because it can save people a lot of time and help find problems with a program before it is released. If a program has a bug, it can cause problems for people using it. By testing the program automatically, we can find these bugs and fix them before the program is released to the public.