What are white box testing and black box testing? Explain with examples.

Question

Krishnapriya Rajeev · Answer

Black box testing or closed testing is a method of software testing that tests the
external design of the software in addition to its overall functionality and structure. The internal design or the implementation of the software is unknown to the tester.
Example: Testing the functionality of a search engine by giving it certain inputs and checking the corresponding results.
On the other hand, white box or glass box testing is a method of software testing that tests the
internal design of the software, i.e. the implementation of the software is being tested and is known to the tester.
Example: Testing all the loops and conditions in a piece of code by giving multiple inputs (test cases) and observing the outputs, while at the same time checking for errors.
The key differences between these two methods are:
Black Box Testing
White Box Testing
Details regarding the implementation of the program is hidden.
Details regarding the implementation of the program is available to the tester.
It tests the functional capabilities of the software.
It tests the structural features of the software.
These tests can be done based on the software requirements specification (SRS) document.
These tests are done after creating a detailed software design document
Higher-level software testing is being done.
Low-levelareare software testing is being done.
Programming knowledge is not required.
Knowledge of programming is mandatory.
It is not time-consuming.
It is time-consuming
It is a form of behavioral testing.
It is a form of logic testing.
It is not preferred for testing algorithms.
It is suitable for testing algorithms.

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What are white box testing and black box testing? Explain with examples.

Revati S Misra

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Black Box Testing	White Box Testing
Details regarding the implementation of the program is hidden.	Details regarding the implementation of the program is available to the tester.
It tests the functional capabilities of the software.	It tests the structural features of the software.
These tests can be done based on the software requirements specification (SRS) document.	These tests are done after creating a detailed software design document
Higher-level software testing is being done.	Low-levelareare software testing is being done.
Programming knowledge is not required.	Knowledge of programming is mandatory.
It is not time-consuming.	It is time-consuming
It is a form of behavioral testing.	It is a form of logic testing.
It is not preferred for testing algorithms.	It is suitable for testing algorithms.