Kódlefedettségi

Kódlefedettségi refers to the extent to which the source code of a program is executed when a particular test suite runs. It is a metric used in software testing to measure the quality and thoroughness of tests. High code coverage generally indicates that a larger portion of the codebase has been exercised by tests, which can lead to a higher probability of detecting defects. Conversely, low code coverage suggests that significant parts of the code have not been tested, potentially leaving undiscovered bugs.

There are various types of code coverage, including statement coverage, branch coverage, and path coverage. Statement coverage ensures that every executable line of code has been executed at least once. Branch coverage goes further by verifying that each possible branch (e.g., the true and false outcomes of an if statement) has been taken. Path coverage is the most comprehensive, aiming to execute every possible execution path through a function or program, though it can be impractical for complex code due to the exponential number of paths.

Code coverage tools are used to analyze test execution and report on the coverage achieved. While high code coverage is often desirable, it is not a guarantee of bug-free software. It's possible for code to be executed without actually verifying its correctness. Therefore, code coverage should be considered alongside other testing practices and quality metrics.