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Test Cases vs. Test Data

publish date: 2026/06/16 21:34:55.957553 UTC

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What is the distinction between test cases and test data in the testing process?

Test cases specify the inputs and expected outputs; test data are the actual inputs devised to test the system

Test data are specifications; test cases are automatically generated from them

Test cases and test data are two terms for the same concept

Test cases are the inputs used in testing; test data are the expected outputs

Correct Answer

Test cases specify the inputs and expected outputs; test data are the actual inputs devised to test the system

Explanation

Test cases are specifications of inputs to the test, expected outputs from the system, and a statement of what is being tested. Test data are the actual inputs devised to test the system. Test data can sometimes be generated automatically, but test cases require human understanding to define expected results.

Reference

Software Engineering, Ian Sommerville, 10th edition

Quizzes you can take where this question appears

The Testing Process and Testing Stages