Quiz 7, Chapter 8


What is meant by partition testing? What are some rules for selecting test inputs when doing partition testing?


Partition testing, where you identify groups of inputs that have common characteristics and should be processed in the same way. You should choose tests from within each of these groups.

Once you have identified a set of partitions, you choose test cases from each of these partitions. A good rule of thumb for test case selection is to choose test cases on the boundaries of the partitions, plus cases close to the midpoint of the partition. The reason for this is that designers and programmers tend to consider typical values of inputs when developing a system. You test these by choosing the midpoint of the partition. Boundary values are often atypical (e.g., zero may behave differently from other non-negative numbers) so are sometimes overlooked by developers. Program failures often occur when processing these atypical values.

Topic revision: r3 - 2016-01-10 - JimSkon
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