2 Software teSting interview QueStionS
Let’s review the four steps in detail.
1) Plan: Define the goal and the plan for achieving that goal.
2) Do/Execute:
Depending on the plan strategy decided during the plan
stage we do execution accordingly in this phase.
3) Check:
Check/Test to ensure that we are moving according to plan and
are getting the desired results.
4) Act:
During the check cycle, if any issues are there, then we take appropriate
action accordingly and revise our plan again.
So now to answer our question, where does testing fit in….you guessed
it, the check part of the cycle. So developers and other stakeholders of the
project do the “planning and building,” while testers do the check part of
the cycle.
(B) what Is the dIfference Between whIte Box,
Black Box, and gray Box testIng?
Black box testing is a testing strategy based solely on requirements and
specifications. Black box testing requires no knowledge of internal paths,
structures, or implementation of the software being tested.
White box testing is a testing strategy based on internal paths, code
structures, and implementation of the software being tested. White box testing
generally requires detailed programming skills.
There is one more type of testing called gray box testing. In this we look
into the “box” being tested just long enough to understand how it has been
implemented. Then we close up the box and use our knowledge to choose
more effective black box tests.
The following figure shows how both types of testers view an accounting
application during testing. Black box testers view the basic accounting
application. While during white box testing the tester knows the internal
structure of the application. In most scenarios white box testing is done by
developers as they know the internals of the application. In black box testing
we check the overall functionality of the application while in white box testing
we do code reviews, view the architecture, remove bad code practices, and
do component level testing.
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