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Video Title: Testing Approaches
Description: Testing Approaches
Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm
Lecture By: Mr. Arnab Chakraborty, Tutorials Point India Private Limited
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In this session, we are discussing testing
approaches.

And we shall show you that are mainly two
different categories of testing approaches.

So, test can be conducted based on two
approaches.

One is the functionality testing and the
one is the implementation testing.

When functionality is being tested without
taking the actual implementation in

concern, it is known as a black box
testing.

In case of black box testing, what
happens?

The tester will not have any access over
the code.

He or she cannot see the how the codes are
written.

He or she can
only give some inputs to the respective

module and the
respective outputs can be obtained.

And this respective output will be tested
with the desired outputs.

So, that is why it is called as black box
testing.

And the other side is known as white box
testing, where not only the functionality

is getting tested, but the way it is
implemented is also analyzed.

So, that is the
basic difference between this black box

testing that is
our functionality testing related with.

And another one is the implementation
testing, which is related with the white

box testing, where the codes are
accessible to the tester.

And tester has got some knowledge,
sufficient knowledge.

So, he or she can also do some changes in
the code if required.

So, that is
the basic logical difference between

this black box and
the white box testing.

Exhaustive tests are the best desired
method for a perfect testing.

Every single possible value in the range
of the input and output values is tested.

It is not possible to test each and every
value in the real world scenario,

if the range of the values is very large.

So, obviously, we
should try to test as much as

possible regarding the input values and
output values.

But if the input values are coming from
the very large universal set, then

obviously, all the values may not get
tested.

Now in this very particular diagram,
we are actually trying to discuss that

what is the
basic difference in the mindsets of a

developer
and another one is independent tester.

So, this developer
understands the system, but

will test gently and
is driven by delivery.

So, obviously, developer
will be also doing some

testing on the
software on which he or she is working.

But here, he will be
giving some gentle,

will be doing the testing
in some gentle way.

And here, he is actually driven by the
delivery.

The required delivery schedule,
what has to be implemented.

So, their point of concern is regarding
that there is a gentle test and delivery.

But in case of
independent tester, must learn about the

system, will attempt
to break it and is driven by the quality.

So,
this particular independent tester will

look into the system
in some different view.

It will try to break the record security
or the record break the different norms of

this particular software which has got
implemented.

And we will
try to get the software getting tested

so that the
quality of the software can be assured.

So, here in this particular video,
we have discussed what are the different

testing approaches.

Thanks for watching this video.

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