As applications grow, running tests manually becomes slow and unreliable.
Test automation means using code to run tests automatically instead of checking everything by hand.
Automated tests save time, reduce human error, and make sure your application works correctly every time changes are made.
Why Test Automation is Important
- Runs tests quickly
- Reduces manual effort
- Finds bugs early
- Keeps code stable after updates
- Saves time in large projects
- Makes teams more productive
Automation is a key part of professional software development.
Here, the developer checks the result manually.
This works for small programs but becomes slow and error-prone in large applications.
Now the test checks the result automatically.
You can run this test anytime to make sure the function still works.
These examples show how automation makes testing faster and more reliable.
By learning test automation basics, students gain the mindset of professional developers who value efficiency, stability, and high-quality JavaScript applications.