UGC NET CSE | September 2013 | Part 2 | Question: 30

Question

Equivalence partitioning is a _____ testing method that divides the input domain of a program into classes of data from which test cases can be derived.

• A. White box
• B. Black box
• C. Regression
• D. Smoke

Answer 1

Answer B Black box

Equivalence partitioning

Divides the input domain into classes of data 1.If an input condition specifies a range, define one valid and two invalid equivalence classes 2.If an input condition requires a specific value, define one valid and two invalid equivalence classes. 3.If an input condition specifies a member of a set, define one valid and one invalid equivalence class. 4.If an input condition is Boolean, define one valid and one invalid class.

If one test case in a class detects an error, all test cases in same class will detect that error.             If one test case in a class fails to detect an error, all test cases in same class will fail to detect that error.