Before you proceed reading this post, please take a piece of paper or a notepad and write down what you mean by "negative testing".
Are you done with it?
I spent time investigating what many Indian testers say about "negative testing" by browsing online forums, google search and I also sought help from testers who were online in my buddy list. What you read below till you see a "Meep" are views of testers who responded to me over IM when I asked them - What do you mean by "negative testing"? or When someone says "negative testing", what occurs to you? or What do you think about "negative testing"?
"I infer that some of the people are trying hit on negative tests (the probality of user acting the same is very less) o begin with"
"Testing carried out to test expected behaviour from product by providing wrong (negative) inputs "
"A negative test would be the program not delivering an error when it should or delivering an error when it should not. Negative Testing = (Showing error when not supposed to) + (Not showing error when supposed to)"
Read More: https://goo.gl/x4QWm (By Pradeep)