Which types of coverage criteria are commonly used to validate a code testing suite?

The correct answer encompasses several important coverage criteria often used to validate a code testing suite, including function, statement, branch, and condition coverage.

Function coverage refers to the extent to which the functions within the code have been tested. This ensures that each function's logic has been exercised at least once during testing, allowing testers to verify that each unit of functionality performs as expected.

Statement coverage measures whether each executable statement in the code has been run during tests. Achieving full statement coverage implies that all lines of code have been executed, helping identify areas that may contain untested or unreachable code.

Branch coverage ensures that every possible branch from each decision point in the code has been executed. This is crucial in testing conditional logic, as it verifies that both true and false outcomes of each decision path are taken, ensuring the code behaves correctly under various conditions.

Condition coverage, as part of branch coverage, validates the individual boolean expressions within decisions. It checks that both true and false outcomes for each individual condition within a decision point have been tested, providing a deeper analysis of how the code reacts to different combinations of conditions.

Combining these criteria provides a comprehensive approach to testing that effectively identifies defects and improves software quality. This high level of coverage is essential in a robust testing