Shulou(Shulou.com)06/03 Report--

1. What are the common testing methods for black-box testing and white-box testing? Give an example.

A: White box test: balk coverage method, which mainly includes surprise sentence coverage, judgment coverage, condition coverage, combination condition coverage, path coverage.

Black box testing: equivalence classification, boundary value analysis, wrong gag inference, etc.

two。 The concept of static and dynamic testing.

Answer: the static method is not to run the program itself, but to check the correctness of the program only by analyzing and checking the syntax, structure, process, interface and so on of the source program. Do structural analysis, flow chart analysis and symbol execution to find errors in requirements specification, software design specification, source program. The static method finds out the deficiencies and suspicions through the analysis of the static characteristics of the program.

The dynamic method is to check the difference between the running results and the expected results by running the program under test, and to analyze the performance such as running efficiency and robustness. The so-called dynamic testing of software is to run the software to verify the dynamic behavior of the software and the correctness of the running results.

According to the stage and function of dynamic testing in the process of software development, dynamic testing can be divided into the following steps: 1, unit test 2, integration test 3, system test 4, acceptance test 5, regression test.

3. There are several equivalence classes, and what do they mean?

Answer: the equivalence category is divided into the following categories:

Effective equivalence class and invalid equivalence class, the specific meaning of which is understood by yourself.

4. The advantages and disadvantages of equivalence class division. (just give some experience in the process of using it)

A: advantages: considering all kinds of situations in a single data field, avoiding the incompleteness and instability of blind or randomly selected input data, and effectively controlling the number of test designs.

Disadvantages: insufficient consideration of the combination, and in many cases improper use case selection can lead to problems (such as boundaries).

5. The advantages and disadvantages of boundary value testing methods.

A: long-term testing experience tells us that a large number of errors occur at the boundaries of the input and output range. Therefore, more errors can be found by designing test cases for various boundary situations.

However, like the equivalent class partition method, the boundary value analysis method does not take into account the combination of inputs, so it is necessary to further combine other test case design methods.

6. The principle of equivalent class division

There are a lot of things on the Internet. Search them yourself.

7. Performance testing: how to evaluate the limit performance of the system?

8. Determine the conditions for the termination of the test activity

A: analyzed from the following angles, including: no new bug and high severity of the old bug has been repaired; bug convergence; a certain level of bug is lower than a certain proportion; time exhaustion; meet a specific coverage.

9. Common test models?

Answer V model, W model, H model, X model and pre-model, etc.

To be continued. Welcome to forward

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.