Interface test overview

1. Definition of interface ：
   • API Interface It belongs to the calling interface of a system or program
   • GUI Interface It belongs to a system of operating software with graphical interface .
2. Interface testing is testing Interfaces of various components inside the system , as well as The point of interaction between the system and the external system .
3. The main content of the test ：
   • Exchange of inspection data
   • Transfer and control the management process
   • Mutual logical dependencies between systems
4. Applicable occasions for interface test ：
   • Generally used in Multiple systems Interactive development between
   • The underlying framework system and central service system suitable for providing services for other systems
   • It is applicable to the service layer interface in an upper system
   • The more complex the platform , The bigger the system , The more effective the interface test is .

5. About the comparison between interface test and function test at interface ：
（1） There is no specific page in the interface test
（2） It is Specify the call address on the document through the interface 、 Request parameters , Splicing request information
（3） Then send the request , Check the return result
（4） Just measure in and out parameters .
The benefits of interface testing ：
（1） I found many things that I couldn't find on the page bug
（2） Check the exception handling ability of the system
（3） Check the security of the system 、 stability
（4） The front end changes at will , The interface has been tested , The back end doesn't have to change

6. Necessary conditions for interface test ：
   （1） Interface specification （ What is the interface used for ）
   （2） call url
   （3） Request method （get/post）
   （4） Request parameters 、 Parameter type 、 Request parameter description
   （5） Return parameter description （ Abnormal etc. ）
   Now take notes for self-study , Constantly adding .