endtoendvarmuutta

End-to-end variable mutation testing (E2EVM) is a software testing technique that focuses on verifying the correctness of a program's behavior by systematically altering the values of variables and observing the resulting changes in the program's output. Unlike traditional mutation testing, which typically modifies the source code, E2EVM operates at the end-to-end level, treating the software as a black box and only observing its inputs and outputs.

The primary goal of E2EVM is to ensure that the software behaves correctly under a wide range of conditions, including edge cases and unexpected inputs. By systematically altering variable values, E2EVM can help identify weaknesses in the software's error handling, data validation, and overall robustness.

E2EVM can be applied to various types of software, including web applications, mobile apps, and desktop applications. It is particularly useful for testing software that relies on complex data structures, such as databases or APIs, as well as software that interacts with external systems or services.

To perform E2EVM, testers typically use automated tools that can generate and execute test cases, as well as analyze the results. These tools can be configured to target specific variables or data types, as well as to use different mutation strategies, such as random mutation or targeted mutation.

E2EVM is a powerful technique for improving software quality and reliability. By systematically altering variable values and observing the resulting changes in the program's output, E2EVM can help identify and fix a wide range of defects, including those that may not be detected by traditional testing techniques. However, like any testing technique, E2EVM has its limitations and should be used in conjunction with other testing methods to achieve the best results.