Do you know all the interface test interview questions?

Interview questions

1. What is interface testing ？

2. What is the process of interface automation testing ？

3. GET Request and POST What is the difference between a request ？

4. What are the common tools for interface testing ？

5. HTTP What are the request parameter types of the interface ？

6. How to obtain relevant response data from the previous interface and transfer it to the next interface ？

7. What are the main points of writing interface test cases ？

8. What are the steps of interface test ？

9. How to test the interface that depends on the login state in the interface test ？

10. How to test interfaces that rely on third-party data ？

Refer to the answer

1、 What is interface testing ？

· Interface test is a test method to test the interface between system components .

· The focus of interface testing is to check the exchange of data , The correctness of transmission , And the logical dependencies between interfaces .

· The significance of submitting interface test ： Implement parallel testing during development , Reduce the depth of page layer testing , Shorten the test cycle of the whole project .

2、 Process of interface automation test ？

· The basic interface function automation test process is ： Demand analysis -> Use case design -> Script development -> The test execution -> Result analysis

3、GET Request and POST What is the difference between a request ？

· GET Request for information acquisition , And it should be safe and idempotent ; When you're doing a data query , Suggest using Get The way . Such as ： Commodity information interface 、 Search interface 、 Blog visitor interface, etc .

· POST Requests represent requests that may modify resources on the server ; Adding data 、 When modifying , Suggest using Post The way . Such as ： Weibo Post Bar upload image interface 、 Login registration interface, etc .

Tips：

“GET Get data from the server ,POST Is to send data to the server ”. This statement is wrong ,GET/POST Can submit data ,Get Requests can also pass data to the server ,Post The request also requires the server to return data .

4、 What are the common tools for interface testing ？

· Postman

· Jmeter

· SoapUI

5、HTTP What are the request parameter types of the interface ？

· Query string parameters (Query String Parameters), Parameters will be url string In the form of .

· Request body parameters (Request body) Commonly used in POST request , have access to Content-Type To specify different parameter types .

6、 How to obtain relevant response data from the previous interface and transfer it to the next interface ？

· First obtain the corresponding return value from the response data in the previous interface , Then use regular expressions or json Parse to extract the value to be obtained , Then it's stored in a variable , Finally, you can directly reference it in the next interface .

7、 What are the main points of writing interface test cases ？

· Request parameter required 、 Options, etc

· The input and output are legal 、 Illegal parameters, etc

· Request parameter boundary values, etc

· Response data validation

· Logical verification between interfaces , If two requests have a strict sequence , It is necessary to test the case of the transfer sequence

8、 What are the steps of interface test ？

· Send interface request

· The return value obtained by the test interface

· Assertion ： Determine whether the actual results are the same as expected

9、 How to test the interface that depends on the login state in the interface test ？

· The essence of an interface that depends on the login state is to bring Session perhaps Cookie To send successfully , In the build POST Add the necessary Session perhaps Cookie

10、 How to test interfaces that rely on third-party data ？

· You can use some MOCK Tools for ( Such as Json Server,Easy Mock) To simulate the data return of a third party , Minimize dependence on third-party data interfaces .

The house needs to be built layer by layer , Knowledge needs to be learned at one point one . We should lay a good foundation in the process of learning , More hands-on practice , Don't talk much , The last dry goods here ！ I stayed up late to sort out the stages ( function 、 Interface 、 automation 、 performance 、 Test open ) Skills learning materials + Practical explanation , Very suitable for studying in private , It's much more efficient than self-study , Share with you .

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