Question

I’m pretty new to TDD. I see some docs says about positive test, negative test, boundary test etc. Can any one tell me the difference between a positive test and negative test? Is there any reference out there that says about the different types of tests? (I’m not looking for books)

Answer 1

Positive Testing – testing the system by providing valid
data.

Negative Testing – testing the system by providing invalid
data.

For Example, an application contains a textbox and as per the
user’s Requirements the textbox should accept only
Strings.By providing only String as input data to the
textbox & to check whether its working properly or not
means it is Positive Testing.
If giving the input other than String means it is negative
Testing..

Negative testing improves the testing coverage of your application. Using the negative and positive testing approaches together allows you to test your applications with any possible input data (both valid and invalid) and can help you make your application more stable and reliable.

Refer this Glossary for different type of tests