Description: Line coverage is a metric used in software development to measure the percentage of executable lines of code that have been tested through automated tests. This metric is fundamental for assessing the quality and robustness of the code, as it allows identifying which parts of the code have been verified and which have not. High line coverage suggests that the code has undergone a rigorous testing process, which can reduce the likelihood of errors in production. However, it is important to note that high coverage does not guarantee the absence of errors, as there may be test cases that do not cover all possible conditions and execution paths. Line coverage is calculated by dividing the number of lines of code executed by tests by the total number of executable lines of code, multiplied by 100 to obtain a percentage. This metric is commonly used in code reviews and continuous integration environments, where the goal is to ensure that new or modified code does not introduce failures into the existing system. In summary, line coverage is a valuable tool for developers, as it provides a clear view of the effectiveness of tests and helps improve software quality.
