Pass CTFL-Foundation Exam Guide

A data-driven approach to test automation design involves separating the test data inputs from the test scripts. This approach allows the same generic script to read different sets of test data and execute the same test steps with various inputs. This method enhances reusability and efficiency in automated testing by allowing testers to run multiple test scenarios using the same script but different data sets​​.

To achieve 100% statement coverage and 100% decision coverage for the provided pseudo code, at least two test cases are required. The first test case should cover the scenario where X > Y, which will execute the statements in the "if" branch. The second test case should cover the scenario where X ≤ Y, which will execute the statements in the "else" branch. This ensures that both the true and false branches of the decision are tested, and all statements in the code are executed at least once.

Equivalence Partitioning is a black-box testing technique that divides the input data of a software unit into partitions of equivalent data from which test cases can be derived. It helps in reducing the number of test cases while maintaining adequate test coverage.

Experience-based techniques rely on the testers' knowledge, skills, and experience, as well as insights from developers and users, to design test cases. These techniques do not depend on formal models or the internal structure of the software but rather on practical experience and understanding of how the software is likely to be used and where defects are likely to be found​​.