Latest interface automation interview questions

Catalog

1、get and post The difference between ？

2、post What are the four parameter forms of the request ？

3、http Status code 302, 403, 503 What do they stand for ？

4、 Companies use third-party services , Something went wrong. , Call a third party , Third party does not recognize , At this time, the log shows no errors , What to do with ？

5、 How to deal with association in interface automation ？

6、 How does automated testing verify the results ？

7、 What is the testing framework used for Automation ？ The design of automation framework is briefly described 、 maintain

8、 How to apply automation in this project , Your analysis of automation results

9、 What is the key to a good test plan ？

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1、get and post The difference between ？

l http Is the upper layer request agreement , It mainly defines the interaction specifications between server and client , The bottom is tcp/ip agreement

l Get Will attach parameters to url after , use ？ Division ,& Connect different parameters ,Get Access to resources ,post Will put the parameters in http Request body ,Post Send request data

l Get Produce a tcp Data packets ,post Produce two tcp Data packets

l Get request , The browser will http header and data Send together , Server return 200 Response code

l Psot request , Browser sends first header, Server response 100（continue）, And then send data, Server return 200 Response code

l Post The safety ratio of get high , If the browser caches , Will be able to get Parameters remain in the cache , The user can see the parameter information

2、post Four parameters of the request What is the form ？

Application/x-www-form-urlencoded： Send parameters as a set of key pair values

Multipart/form-data： Support single group and multi group file upload

Application/json： Support data types according to the definition of back-end interfaces

Text/xml

                

 

3、http Status code 302, 403, 503 What do they stand for ？

302： Temporarily redirect to a page , For example, you can only enter the page after logging in , He will first temporarily redirect to the login interface

403： Not enough permissions   The server understands the customer service request , But the request was rejected

503： The server is currently unavailable , Overload or maintenance

500： Server exception

404： request was aborted , The resource expected by the request was not found on the server

401： Request authentication

1XX series ： Specify some actions that the client should take , The representative's request has been accepted , Need to continue processing

2XX series ： The delegate request has been successfully received by the server 、 understand 、 And accept . The most common in this series are 200、201 Status code .

3XX series ： Represents that the client needs to take further action to complete the request , These status codes are used to redirect , Subsequent request address （ Redirect to ） In this response Location The domain indicates . The most common in this series are 301、302 Status code .

4XX series ： Indicates a request error . Represents that the client may have an error , Hinders server processing . There are common ：401、404 Status code .

5xx series ： Represents that the server has an error or abnormal state in the process of processing the request , It is also possible that the server realizes that it cannot complete the processing of the request with the current hardware and software resources . There are common 500、503 Status code .

4、 Companies use third-party services , Something went wrong. , Call a third party , Third party does not recognize , At this time, the log shows no errors , What to do with ？

1/ Call the third-party service separately , View the... Returned by the three-party interface status,code,msg, See if it can support normal service

2/ In their own applications mock Third party service , To call your own interface , See if it works properly , Feed back the results to a third party

3/   Configure the log level at debug When level , Add a log of the third-party request process , Check the input parameters , Respond to track the problem

5、 How to deal with association in interface automation ？

Pass the result returned by the previous request to the parameters of the next request , Reflect the result of the request to a class property （ Use setattr（） function ）, The next request is to call the class property

 

6、 How does automated testing verify the results ？

Assertion  , The expected results are compared with the actual results

Database verification , According to the test scenario, query the data in the database and compare it with the data before the request

7、 What is the testing framework used for Automation ？ The design of automation framework is briefly described 、 maintain

1/ The test framework ：python+unittest+requests+ddt+openpyxl+pymysql+logging

The test framework ：

python： Easy entry , Grammatical simplicity

unittest ： Define a test case class , Specific methods to maintain the life cycle of test cases , Test scenario behavior , The test case    Front scene , Behavior , Expected results , The actual result , assert methods ,Setup teardown Method

requests： Interface call , Support http Requested Library ,API concise , Offer different http Request method , Support session,cookies,

 ddt ： Data driven ,ddt Class decorator ,data Test method decorator   unpack Unpack iteratable data types

Ordinary users , database , The configuration file ---（ Basic data ）

openpyxl：   Data management  excel Management data , Use openpyxl Module to do excel Reading and writing data （excle,csv,  json,  yaml,  txt Can manage test data ）

 pymysql： Database interaction , data verification

 eval,json： Data format conversion   Eval take python Convert the supported formats to the corresponding formats

logging： Log processing , Unified log output format , channel , Level , Record of execution results , Easy to locate the problem

 jenkins： Continuous integration

                       

 

2/ Frame design ideas ： Data driven + Structural layering （ Readability , Maintainability , Extensibility ）

Data driven ： Separate maintenance data from code , Interface call behavior is consistent , Different test scenarios are driven by different parameter combinations , Reduce code redundancy

Structural layering ： The data layer + Use case layer + Logic layer

The data layer ： Test data support  data.xls

Use case layer ： Execution of use cases  test_register.py  test_recharge.py

Logic layer ： Encapsulation and extraction of common methods  doexcle.py do_mysql.py http_requests.py logger.py Equal module

3/ Frame design steps ：

Prepare test data ： EXCEL Table preparation test case ---excel Data reading --- Replacement of parameter values

Initiate request ： Request method （get/post Method to encapsulate ---URL The joining together of （ Different --- Parameters are converted to dictionaries

Get the return value of the request ： Parse the return value code,status,msg Information

Assertion

   benefits ：

1、 The perfect combination of automated test cases and manual test cases , Reduce repetitive work

2、 Flexible configuration , You can switch test environment independently , Execute test case

3、 Common functions are encapsulated , Clear logic , Easy to maintain

4、 Unified execution portal , Manage test suite ：

run.py The module selects the test case to be executed through fuzzy search

5、 Continuous integration , Time to build , Quick feedback

 

8、 How to apply automation in this project , Your analysis of automation results

After completing the design and implementation of all the automated testing frameworks , Conduct interface test , Then integrate into jenkins, Configure scheduled execution , Generate html report form , Check the test pass rate , Check the function of the interface

Every time it's published , Do regression testing , New function development before testing

9、 What is the key to a good test plan ？

Clarify the purpose of the test , Enhance the usability of the test plan , Ensure the practicality and coverage of test cases , Complete requirements documents and specifications , Strictly define the test cycle , Test rounds , Test coverage modules, etc

20200617 The beginning of Tianyu Software ：

1.post,get Differences in requests

2. Key points of interface test cases

3. How to do the association between interfaces

4.cookies How to store

5. Concurrent ,cookies,token How to deal with it

6. When the three party interface fails , How to deal with it

7. How to carry out interface automation , Did you build the framework yourself ？

Jiuzhou tongchu noodles

1、 The difference between interface test and function test

2、 Key points in interface testing

3、 How to carry out interface automation testing --- How the framework is designed

4、 The reason for leaving

5、 Career orientation ： Interface , performance , function , The technical content of the bottom layer is higher ？