Several common implementation methods of mock interface test

What is an interface Mock test

• Mock Test definition

  Mock Testing is in the process of testing , For some complex objects that are not easy to construct or obtain , Use a mock object to create a test method for testing

• Mock Test application scenarios

  • The test interface needs to rely on the return value of the third-party interface for logical processing , For example, the payment interface of the bank
  • Simulate abnormal data return , For example, you need to return special characters 、 Different lengths 、 Type format content
  • Front and back end development parallel work mode , When the back-end interface is not completed , Front end calls Mock Data is adjusted
  • Isolation environment , Ensure data security and correctness , about POST、PUT、DELETE Wait for the request to be isolated , Prevent other unknown errors in modifying data

Mock Several common implementation methods

• fiddler/Charles Tools
• Mock Server-Moco
• Self development Mock platform

adopt fiddler

• stay fiddler Interface ---- Find out what you want mock The interface of

  With URI：/api/v1/my/index For example ,fiddler Of web session Interface find the following interface /api/v1/my/index This interface

• Save interface response data

  Right click on the interface , Choose Save -> Respond to -> Response subject , Save to the specified folder ：my_index.json
  

• Modifying data

  Modify the saved to local my_index.json file , Add special characters to the user name .

• add to /api/v1/my/index To mock The rules

  stay web session Find the corresponding request in the panel , Then drag it to or select the interface and click Add to AutoResponder The palette , stay RuleEditor Middle click “Find a file…”, Select local json Path to file , Click save .
  
  
  

• Activation rules

  Check enable rule and request delivery , Activation rules .
  

• Refresh the page

  Refresh the browser （ Or direct access interface ）, And you can see the effect , I want to modify other data later , Just modify the locally saved json File can .

• Cancel mock

  You only need to use the auto response rule list area interface , Uncheck it
  

Mock Server-Moco

Server-Moco explain

• Moco Is a simple framework to build a simulation server （ Tools ）, Can simulate http、https、socket Such agreement
• be based on Java Open source project developed ,Github Address ：https://github.com/dreamhead/moco
• principle ：Moco According to some configuration , Start a real HTTP service （ Will listen to a local port ）. When an initiated request meets a certain condition , The specified response data will be returned , Need modification

Environment building

• Download and install ： rely on JDK Environmental Science , Perform computer installation JDK, Proposed installation JDK1.8 edition
• Server-Moco Download address ：https://repo1.maven.org/maven2/com/github/dreamhead/moco-runner, Select the appropriate version , Download the latest version 1.3.0, Download it moco-runner-1.3.0-standalone.jar package
  
  

Moco Use

Start parameter description

java -jar <path-to-moco-runner> http -p <monitor-port> -c <configuration-file>

java -jar <path-to-moco-runner> http -p <monitor-port> -g <configuration-file>

• path-to-moco-runner：jar The path of the package
• monitor-port：http The port the service listens on
• configuration-file： Profile path

Mock A single request

• Create a json file , be known as login.json, The contents are as follows ：

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”
  },
  “response”: {
  “text”:“ Login successful ”
  }

  }
  

  ]

• start-up Mock service

  java -jar moco-runner-1.1.0-standalone.jar http -p 8082 -c login.json

• stay Postman Send a request ：http://localhost:8082/login
  

Mock Multiple requests

• Creating a json file , be known as home.json, The contents are as follows ：

  [
  {
  “description”: “ home page ”,
  “request”: {
  “uri”: “/home”
  },
  “response”: {
  “text”:“ Enter the home page ”
  }

  }
  

  ]

• Create a request management profile , be known as config.json, The contents are as follows ：

  [
  {“include”: “login.json”},
  {“include”: “home.json”}
  ]

• start-up Mock service

  java -jar moco-runner-1.1.0-standalone.jar http -p 8082 -g config.json

• stay Postman Send a request ：http://localhost:8082/login and http://localhost:8082/home
  

Common parameter configuration

• Request mode , adopt method Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”
  },
  “response”: {
  “text”: “ Login successful ”
  }
  }
  ]

• Request parameters , adopt queries Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”,
  “queries”: {
  “username”: “king”,
  “pwd”: 123456
  }
  },
  “response”: {
  “text”: “ Login successful ”
  }
  }
  ]

• Request header , adopt headers Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”,
  “headers”: {
  “appId”: “4275CCE0-CE16-4BCC-9AF5-31CA133AC9AD”
  }
  },
  “response”: {
  “text”: “ Login successful ”
  }
  }
  ]

• Form request body , adopt forms Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”,
  “forms”: {
  “username”: “king”,
  “password”: 123456
  }
  },
  “response”: {
  “text”: “ Login successful ”
  }
  }
  ]

• JSON Request body , adopt json Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”,
  “headers”: {
  “Content-Type”: “application/json”
  },
  “json”: {
  “username”: “king”,
  “password”: 123456
  }
  },
  “response”: {
  “text”: “ Login successful ”
  }
  }
  ]

• HTTP Response status code , adopt status Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”
  },
  “response”: {
  “status”: 500,
  “text”: “ Server exception !”
  }
  }
  ]

• JSON The response data , adopt json Parameters are defined

  [
  {
  “description”: “ Sign in ”,
  “request”: {
  “uri”: “/login”,
  “method”: “post”
  },
  “response”: {
  “headers”: {
  “Content-Type”: “application/json;charset=UTF-8”
  },
  “json”: {
  “code”: “0”,
  “msg”: “ Successful operation ”,
  “data”: {
  “userID”: 3175896456,
  “token”: “17e6ad42cff592-0dfc3f6fa02aee-c343365-1fa400-17e6ad42d00891”
  }
  }
  }
  }
  ]

Self development Mock platform

A little

Use Mock Be careful

• When put mock After the interface is replaced with the actual interface , The test must also be repeated
• The test is over , Before going online, make sure , in order to mock And do the relevant code / Modification of configuration file

The above content is purely personal understanding , If there is any deficiency , Welcome to correct , Reprint please indicate the source !

If you think the article is good , Welcome to WeChat official account. , The official account of WeChat is regularly pushing the relevant test technology articles.

《 Front end interview questions of first-line large factories + Develop learning notes + The latest architecture explanation video + Handout of the event station project 》
【https://docs.qq.com/doc/DQVJzbnRIWWNtcVR4】 Full content open source sharing