Software testing is all about checking the application whether it is working according to the given requirement or not. We may have to use various software testing types like functional testing, Unit testing, Integration system, System testing, smoke testing, regression testing, and sanity testing to complete the process.
Software development is not an easy take to complete because it is all about writing extensive and complex codes and then testing these composite codes to guarantee faultless and constant performance. As we know, software testing is an essential aspect of writing a successful code.
However, all of these came into the following two categories, such as:
- Positive Testing
- Negative Testing
What is Negative Testing?
It is a unique type of software testing technique used to evaluate the system for unpredicted circumstances. It plays a very significant role in high-performance software development.
In this testing, the system is authorized by giving the invalid data as input. A negative test analyzed if an application performs as predictable with its negative inputs.
Mainly, negative testing is used to checks whether such unpredicted situations will be the software’s performance.
In other words, we can say that negative testing is implemented to guarantee that the software product under test does NOT fail when an unpredicted input is given. It is also known as failure testing or error path testing.
The Objective of Negative Testing
- The primary objective of performing the Negative testing is to interrupt the system and validate the application response throughout the unexpected inputs.
- The execution of negative testing ensures suitable and ideal software performance even when the user performs inconsistently by inserting the invalid and wrong data.
- To make sure the constancy of the application against the impacts of different variations of inappropriate validation data set, we will implement the negative testing.
- It helps us to identify n-number of bugs and enhance the quality of the software application under test. However, the negative testing is done after the implementation of the positive testing.
Example of Negative Testing
In negative testing, the software product’s implementation is evaluated with the help of invalid data inputs. When unexpected parameters are entered, the response of the software is tested.
In such conditions, the application should display the following error message:
Invalid data input.
For example: Suppose we have one sample form to enter the values for the name, phone number, and Pincode fields. In such case, the negative input could be the following:
Name: 838383
(As the name field only accepts the alphabetic character value)
Phone No: ABCDE
(As the Phone no field only accepts the he values of the number)
Pincode: ABCDE
(As the Pincode field only accepts the he values of the number)
