Test-Driven Development

---------
| Test  |     ---------------------
| Driver|<----|Test Case  Database|
---------     |   Test Case 1     |
    |         |   Test Case 2     |
    |         |   Test Case 3     |
    |          --------------------
    v
---------
|Program|
| being |
|tested |
---------

(You may work on a test-driven tester as a bonus add-on. Depending on what is your primary programming language, you can use such tools as Katalon, Django, Junit and PYtest)