Positive and Negative test cases

 Positive and Negative test cases

Positive Testing = (Not showing error when not supposed to) + (Showing error when supposed to) So if either of the situations in parentheses happens you have a positive test in terms of its result - not what the test was hoping to find. The application did what it was supposed to do. Here user tends to put all positive values according to requirements.

Negative Testing = (Showing error when not supposed to) + (Not showing error when supposed to)(Usually these situations crop up during boundary testing or cause-effect testing.) Here if either of the situations in parentheses happens you have a negative test in terms of its result - again, not what the test was hoping to find. The application did what it was not supposed to do. User tends to put negative values, which may crash the application.

For example in Registration Form, for Name field, user should be allowed to enter only alphabets. Here for Positive Testing, tester will enter only alphabets and application should run properly and should accept only alphabets. For Negative Testing, in the same case user tries to enter numbers, special characters and if the case is executed successfully, negative testing is successful.