Negative Testing in Software Engineering, a vital form of software testing, examines how an application handles unexpected input data and test scenarios. Testers intentionally use random, incorrect, and even strong hacking attacks to assess the application’s resilience against potential bugs and errors. By subjecting the software to unexpected conditions, negative testing ensures that it adheres to requirements and functions reliably in real-world scenarios.

negative testing

Some software systems come across an issue when the end-users try to store information containing a single quote. The functional specifications should specify the number of characters one can enter into a field. To ensure that this limit is not exceeded, we can write a test case. Similarly, we have an email field, and we have to think about all possible inputs, and we can put them there other than the correct email format. Empower your people to go above and beyond with a flexible platform designed to match the needs of your team — and adapt as those needs change.

Types of Non-functional

But once the impact is analyzed it is up to the client to decide whether to do or not negative testing. As a part of confirmation against a failure, an organization has to do negative testing. Consider the case of a lift which is a commonly considered example of negative testing. You can’t ensure that all the above-mentioned cases won’t happen, so you need to contain them.

negative testing

Negative testing involves uncovering any potential bugs, errors, or security vulnerabilities that might exist. This lowers the cost of bugs and helps develop software applications within the budget. By deliberately testing for unexpected scenarios, it helps ensure that the software is robust and reliable.

Classification and Prioritization of Defects

In Negative testing, a software program is evaluated against false or incorrect data. The usage of negative testing enhances the test coverage of a software product or an application and finds the possible application failure in different conditions. How do you determine what data to use or undesirable action to take in order to create and execute useful negative test cases? Each positive test case is created by analyzing the business/user requirements, artifacts, and software design documents. Use each positive test case scenario to identify the negative test case by utilizing information not found in the documents.

negative testing

Negative Testing is a software testing type used to check the software application for unexpected input data and conditions. Unexpected data or conditions can be anything from wrong data type to strong hacking attack. The purpose of negative testing is to prevent the software application from crashing due to negative inputs and improve the quality and stability. Thus, negative testing seeks to test out all the various data inputs that could be entered incorrectly.

Designing Negative Test Cases

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. Software testing is all about checking the application whether it is working according to the given requirement or not. To reduce false results prior to incorporating automated test scripts or automation tools, be sure to put proper measures in place during test planning and when creating negative test cases.

  • Maintaining a suite of positive test cases helps development teams rerun them when performing updates to ensure that existing features remain untouched.
  • Negative testing, sometimes referred to as failure testing or error-path testing, is the practice of finding useful feedback when things go wrong.
  • The only concern to the client regarding negative testing is that the cost.
  • Negative testing is a key element of software testing, but it can be a time-consuming and expensive process.
  • A person’s ability to carry out an intended task, whether searching for products or making a payment through a UI interface, is critical to a platform’s success.
  • This type of negative testing is known as boundary-value analysis testing.

This helps locate bottlenecks, resource leaks, or performance degradation when applications experience heavy usage. Positive testing helps testers locate early-stage software errors and defects. Using ideal use cases helps testers find minor issues before escalating to more significant ones. Finding problems early in development reduces the likelihood of costly late-stage bugs. Positive testing encompasses a “happy path” approach to looking at the behavior of an application when it receives expected inputs and conditions.