Test and open basic daily question brushing (continuous updating...)

1. The following procedure requires at least （ ） Test cases , To meet the judgment coverage
if（x && y）{....}
else{....}

2 Time   Determining coverage requires that each branch be executed at least once , namely Y,N Must be executed once , There is only one decision in this question , So twice

2. Which of the following are not features of top-down incremental integration testing （ ）

Top down test ： It starts from the initial module of the program .

（1） This method can detect the top-level errors at an early stage .

（2） Early program frameworks can be demonstrated

（3） Need to develop pile module auxiliary test . Some even need multiple pile modules , Increased the original error impact of the pile module .

（4） After testing an upper module , Which module to choose as the next test module , And the order of testing has no unique criteria .

advantage ： The main control and judgment points were verified earlier ; According to depth first, a complete software function can be realized and verified first ; The function was confirmed earlier , Bring confidence ; Just one driver , Reduce the cost of drive development ; Support fault isolation .

shortcoming ： There is a large amount of development of columns ; The underlying validation was delayed ; Inadequate testing of underlying components .

Bottom up test ： It starts from the bottom module of the program .

（1）I/O The operation can be tested in advance , Better submit test cases .

（2） It is easier to observe the output after the test .

（3） Need to develop driver module .

（4） Until the last module is submitted , The program can complete the system test .

advantage ： Early verification of underlying component behavior ; Work can initially be integrated in parallel , More efficient than top-down ; It reduces the workload of piles ; Support fault isolation .

shortcoming ： Driving development is a lot of work ; The verification of the high level was delayed , Design mistakes can't be found in time .

3. Which of the following tests has the largest granularity

 4. The following is not a software testing step

 5. Greater than 、 Less than 、 be equal to 、 It's not equal to 、 really 、 False comparison and wrong judgment are likely to be boundary condition problems , Comparative judgment and control flow are often closely related , Consider whether there are problems when designing test cases, excluding （ ）

  Comparative judgment and control flow are often closely related , Pay attention to the following errors during the test ：
1. Compare objects of different data types ;
2. Incorrect use of logical operators or priorities ;
3. Due to the limitations of computer representation , Two quantities that are theoretically equal but actually unequal are expected to be equal ;
4. Error in comparison operation or variable ;
5. Loop termination conditions may or may not occur ;
6. You cannot exit while iterating ;
7. Incorrectly modified the loop variable .

6. The process of integration testing includes which of the following ？

System integration testing mainly includes the following process ：1. The validation process of the build . 2. Patch validation process . 3. System integration test team submission process . 4. Test case design process . 5. Test the code writing process . 6. Bug The process of reporting . 7. Once a week / Every two weeks of the build process . 8. Point to point testing process . 9. In group training process .

7. Which of the basic standards of software testing is correct ？（）

(1) All tests should be traced back to user requirements .
(2) Should be “ Do software testing early and continuously ” As a motto .
(3)pareto principle ： Of the mistakes found in the test 80% It probably originated in 20% In the module .
(4) It's impossible to test completely , The test needs to be terminated .
(5) The test shall be constructed by an independent third party .
(6) Pay attention to the clustering phenomenon in the test .
(7) Try to avoid random testing .
(8) Give consideration to reasonable input and unreasonable input data .
(9) After the program is modified, it needs regression test .
(10) Use cases should be retained for a long time , Until the system is abandoned .

（ To be continued ... ...）