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Explain Data Flow Testing? How We Will Do That? Step By Spep Procedure? |
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Answer» Data-flow testing looks at the lifecycle of a particular piece of data (i.e. a variable) in an application. By looking for patterns of data usage, risky areas of code can be found and more test cases can be APPLIED. There are FOUR WAYS data can be USED: defined, used in a predicate, used in a calculation, and killed. Certain patterns, using a piece of data in a calculation after it has been killed, show an anomaly in the code, and therefore the POSSIBILITY of a bug. Data-flow testing looks at the lifecycle of a particular piece of data (i.e. a variable) in an application. By looking for patterns of data usage, risky areas of code can be found and more test cases can be applied. There are four ways data can be used: defined, used in a predicate, used in a calculation, and killed. Certain patterns, using a piece of data in a calculation after it has been killed, show an anomaly in the code, and therefore the possibility of a bug. |
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