What is White Box Testing? White Box vs. Black Box Testing

Find out if your code does what it’s supposed to -- with white box testing. Learn more about white box testing and how it’s different than black box testing.

White box testing is a method of testing a program’s source code -- using the code itself as the test. Because testers know what the test is, and can look inward at the application’s internal components, it’s often called glass, transparent, or clear box testing.

To use a white box test, you run something through the code, and analyze what it spits out, to make sure it’s what’s expected. Black box testing is another method, but testers do NOT know what the test is, and use a code coverage monitor that can record how much code was actually executed.

There are upsides and downsides to both forms of testing. Which have you identified? Let us know in the comments and hit that like button, too.


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