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White Box Testing Study Guide and Notes

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White-Box testing It is a test case design approach that uses the control structure (described as part of procedural design) to DERIVE test cases.•We can derive test cases that: a.Guarantee that all independent paths within a module have been exercised/covered at least once. b.Exercise all logical decisions on their true and false sides. c.Execute all loops at their boundaries and within their operational bounds. d.Exercise internal data structures to ensure their validity.

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Internal and External Views
• Any engineered product (and most other things)
can be tested in one of two ways:
– Knowing the specified function that a product
has been designed to perform, tests can be
conducted that demonstrate each function is
fully operational while at the same time
searching for errors in each function;
– Knowing the internal workings of a product,
tests can be conducted to ensure that "all gears
mesh," that is, internal operations are
performed according to specifications and all
internal components have been adequately
exercised.
CC20O7N Software Engineering 1

, Test Case Design

"Bugs lurk in corners
and congregate at
boundaries ..."

Boris Beizer


OBJECTIVE to uncover errors

CRITERIA in a complete manner

CONSTRAINT with a minimum of effort and time


CC20O7N Software Engineering 1

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Uploaded on
March 19, 2022
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2020/2021
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Dr. benson song
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