Statement Testing and Decision Testing are important white-box test techniques used to measure the thoroughness of testing at the code level. Here's the value of these techniques:
Identifying defects: Statement Testing and Decision Testing help identify defects in the code that can lead to errors or incorrect software behaviour. Ensuring that all statements and decision points are executed at least once during testing, these techniques help uncover issues that may not have been apparent during other types of testing.
Measuring test coverage: Statement and Decision Coverage are useful metrics for measuring the level of testing performed on the code. By tracking the percentage of statements or decision points that have been executed during testing, test engineers can ensure that sufficient coverage has been achieved to minimize the risk of undiscovered defects.
Improving software quality: By identifying defects and measuring test coverage, Statement and Decision Testing can help improve the quality of the software. By ensuring that all statements and decision points are thoroughly tested, the software is less likely to contain defects that could impact its performance, reliability, or security.
Facilitating debugging: When defects are identified through Statement or Decision Testing, it can help ease the debugging process. By isolating the specific statements or decision points causing issues, developers can more quickly and accurately identify the root cause of the problem and fix it.
Compliance: In some cases, Statement and Decision Coverage may be required for compliance with certain industry standards or regulations. Organizations can use these techniques to ensure that their software meets the necessary standards and requirements.
In conclusion, Statement Testing and Decision Testing are valuable test techniques that can help test engineers identify defects, measure test coverage, improve software quality, facilitate debugging, and ensure compliance with industry standards. Organizations can minimize the risk of undiscovered defects and deliver high-quality software to their users by using these techniques in conjunction with other testing methods.