Software testing involves a variety of testing methods and it is our responsibility as software testers to understand how each one is carried out. Black box and white box is one of the most complex topics among the numerous testing types. The functionalities of black box testing and white box testing are distinct. However, these checks ensure that the system operates without errors in the manner that is required and that the best possible software version is available. Let us debate the Black box testing Vs White box testing to better understand more about it.
What is Black box testing?
Black box testing is a software testing technique in which the tester is not aware of the internal structure, design, or implementation of the thing being tested. Only the outward structure and design are put to the test.
What is White box testing?
The internal structure, design, and implementation of the thing being tested are all known to the tester in a software testing technique called white box testing. The code implementation and effect are tested.
Black box testing Vs White box testing | Difference between Black box testing and white box testing:
- Black box testing is carried out without the knowledge of the internal structure of the program or application. While the white box testing is carried out with the knowledge of the internal structure of the program.
- When comparing the black box and white box testing, Black box testing requires no programming expertise but white box testing does.
- Black box testing does not require code implementation. White box testing requires code implementation.
- The Black box test generates a low granularity report. While white box testing generates high granularity data.
- Black box testing is mostly done by software testers. while white box testing is mostly done by software developers.
- Black box testing's primary objective is to test the behavior of the software. White box testing's primary objective is to test the internal functioning of the system.
- When comparing black box and white box testing. Black box testing takes less time while white box testing takes more time.
- In contrast to white box testing, which is focused on the code structure, condition, pathways, and branching. The black box is more concerned with the external or end-user perspective.
- No knowledge of implementation is needed for black box testing. While the knowledge of implementation is required for white box testing.
- Black box testing is applicable to the higher levels of testing of software. But the white box testing is generally applicable to the lower levels of software testing.
- Black box testing is also called closed testing, while white box testing is also called clear box testing.
- Black box testing is not suitable or preferred for algorithm testing. While white box testing is suitable for algorithm testing.
- In black box testing, no knowledge of programming is required. While white box testing is mandatory to have knowledge of programming.
- In the black box, testing can be initiated on the basis of requirement specifications documents. While the white box testing of software is started after a detailed design document.
- Black box testing can be done through trial and error ways and methods. While white box testing data domains along with inner or internal boundaries can be better tested.
- An example of Black box testing is i.e. search something on google by using keywords. while the example of white box testing i.e is by input to check and verify loops.
- Black box testing can be referred to as outer or external software testing. While the white box testing is the inner or the internal software testing.
- A software functional test is called black box testing. While white box testing is the structural test of the software.
- Black box testing is the behavior testing of the software. White box testing is the logic testing of the software.
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