What does Code Coverage indicate?

Code Coverage is a metric used in software testing that indicates how much of the source code is executed when a particular set of tests is run. It is primarily concerned with the effectiveness of tests to ensure that various parts of the application are exercised and validated through those tests. By measuring the percentage of code that is covered by testing, developers and testers can gain insights into which parts of the codebase are well tested and which might require additional testing efforts to enhance overall reliability and stability.

A higher percentage of code coverage generally suggests that the tests are effective in monitoring the functionality of the application and that the risk of undetected bugs is reduced. It aids in identifying untested parts of the application, guiding developers on where they may need to focus their testing activities to ensure a more robust implementation.

Other options do not encapsulate the essence of Code Coverage: the amount of code written does not relate to the tests executed on that code, the completeness of coding standards refers more to adherence to best practices rather than how thoroughly the code is tested, and the total lines of code in a project does not provide insight into the testing process or its effectiveness. Thus, the focus on the percentage of code exercised by tests is what clearly defines Code Coverage.