Answer Posted / gomathi baluswamy
Black Box Testing:
1. It is also called the functional testing wherein we
check the functionality of the applicaion through the
input and check what is the expected output.
2. The tester need not have any programming knowledge
3. the tester legally gives input and see the expected
output and need not worry about how the application arrived
at the output.
4. Testing is done by using outward facing iterface GUI
(Graphical user interface)
5. By black box testing we cannot make sure testing is done
completly.
White box testing:
1. It is also called Clear box testing wherein the tester
needs to examine the internal workings of the component or
items to be tested.
2. The tester should have programming knowledge.
3. Testing is done by using internal application
programming interface(API).
4. By this testing we make sure all codes of application
is being tested ie the Loop, Branch, Path coverage is
tested atleast once.
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