Software testing is an indispensable stage in the software development process. For software testers, their job is the process of finding program bugs according to testing methods and testing tools. Speaking of testing methods, I believe that many friends are not unfamiliar with black box testing and white box testing. There is also a popular saying that one of these two testing methods can see the code, and the other cannot see the code. So what does black box and white box software testing mean, and what impact does it have on software testing?
1. What does black box and white box testing mean?
If the test object is regarded as an unknown box, the black box test does not consider the structure of the internal program of the box, but tests the external data, functions and performance according to the requirements specification. The black box test is also called functional test.
On the contrary, white box testing treats the test object as an open box, allowing testers to use the logical structure and related information inside the program to design or select test cases and test all logical paths of the program. White box testing focuses on the internal control of the program. Structure, so white box testing is also called structure testing.
Second, the advantages and disadvantages of the black box white box test method
1. The advantages and disadvantages of black box testing
Black box testing is to test from the product function, can be targeted to find product problems based on test cases, easy to generate test data. The disadvantage is that the code structure in the box cannot be seen, and the accuracy of the test results depends on the design of the test case, which is often used in the test work of the system test and acceptance phase.
2. Advantages and disadvantages of white box testing
White box testing is accompanied by the product development phase. Using white box testing to test whether the program is correct can reduce errors introduced due to non-standard coding and find product defects as early as possible. The disadvantage is that white-box testing cannot cover all paths and will miss some functional requirements.
3. How to do a good job of software testing?
Black box and white box testing are two commonly used testing methods in software testing, and the emphasis of the two testing methods is also different in different situations. Black box testing focuses on the functions and performance of the program to users, while white box testing mainly tests background code programs. The specific test work also depends on multiple factors such as the test environment and the technical capabilities of the testers.
If companies want to do a good job in software testing, they may wish to introduce an independent third-party testing organization such as ZhuoMa Software Evaluation to conduct comprehensive testing of their products. One is because the third-party software testing organization has rich testing experience, testing technical capabilities and testing environment. It is relatively more mature, and can also have a more objective and fair evaluation of products, helping companies to better control product quality.
The above are some video resources I collected, which helped me a lot in this process. If you don't want to experience the feeling that you can't find the information during self-study, no one answers your questions, and insists on giving up after a few days, you can join our deduction group [313782132], which has various software testing resources and technical discussions.
Of course, there are interviews. Interviews are generally divided into technical and hr interviews. In terms of format, there are few group faces. A small number of companies may have an intersection, but in general, the technical aspect is basically an inspection of your professional and technical level. , then hr surface mainly to see the person's overall quality and family situation character does not meet company requirements, in general, technology, then as long as through the technical hr surface is basically no problem (there are a few companies hr face will brush a lot of people)
we Mainly speaking on the technical side, the technical side is mainly to examine the professional technical knowledge and level. The above are also selected interview questions I have compiled.
Come on, test man! If you need to improve your plan, do it. It's better to be on the road than to wait and see at the beginning. There must be a law, and then there will be success.
If the resources are good, give a recommendation~