Black Box, White Box, and Grey Box Software Testing in 2022

If you have been around the QA world for a while, there is a good chance you have heard of doing black box testing and maybe in white box testing, but grey box test…what’s that? Part of making sure an application is ready to be deployed is by testing it in various ways.

This article will cover:

• Black Box Testing
• White Box Testing
• Grey Box Testing

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Black Box Testing

Think of black box testing as entering a room with a dark, black light. Open your eyes and you can’t see anything. The same applies here. In black box testing, the person performing the tester has no knowledge of the internal structure or source code of the application. You may be wondering why? Simple, it’s not needed.

Black box testing is done from the perspective of an end user. End users typically don’t have access to the code. The main goal of black box testing is to interact with a user interface. Its functionality should be tested as well as inputs and outputs against the original requirements established earlier in the software development cycle. Black box testing is usually the most unbiased and easiest to do because it does not require any software knowledge to test and is usually carried out by an independent…