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Monday, November 23, 2009

Control Structure Testing : Condition testing

Condition testing is a test case design approach that exercises the logical conditions contained in a program module. Errors in conditions can be due to:
* Boolean operator error
* Boolean variable error
* Boolean parenthesis error
* Relational operator error
* Arithmetic expression error
The condition testing method concentrates on testing each condition in a program. The purpose of condition testing is to determine not only errors in the conditions of a program but also other errors in the program. A number of condition testing approaches have been identified.
Domain testing needs three and four tests to be produced for a relational expression. For a relational expression of the form
E1 < relational-operator > E2
Three tests are required the make the value of E1 greater than, equal to and less than E2,respectively.

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