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Want to change jobs? Do you know the seven skills you need to master in the interview software test
2022-07-06 15:13:00 【Test Xiaowan】
Catalog
Two 、 Common ways to write test cases :
3、 ... and 、http Protocol principle
Four 、 Understand business capabilities
5、 ... and 、 Use of test tools
Performance testing tools :jmeter
6、 ... and 、 Automated testing of code writing capabilities
One 、 Test case writing
1、 The most important document in testing , He It's the core of the testing work , Is a set of input and output standards when testing , It's a specific comparison of software requirements . Write test cases , It's the basic skill of the tester , There are not many people who can really write well .
What the test case contains :
Use case number , Use case name , Test background , precondition , priority , Test data , testing procedure , Expected results , The actual result , remarks .
2、 When the test partner gets the first requirement document , Analyze , Extract test points , Write test cases , And then it's called development , Use case review by product and related personnel .
Two 、 Common ways to write test cases :
Division of equivalence class
Boundary value analysis
Wrong inference
Flow chart method, etc
3、 Learn to question needs , Don't write test cases exactly according to requirements , want Understand requirements from the perspective of users , See functions and experiences beyond the needs .
3、 ... and 、http Protocol principle
1、http Protocol principle
HTTP Agreement is Hyper Text Transfer Protocol( Hypertext transfer protocol ) Abbreviation , yes From the World Wide Web (WWW:World Wide Web ) The server transmits hypertext to the local browser .
2、TCP and UDP difference
TCP and UDP yes OSI Protocol in transport layer in model .TCP Provide reliable communication transmission , and UDP It is often used for the communication transmission of broadcasting and detail control to the application .
3、get and post difference
Get: it For obtaining information , It's just getting 、 Query data , That is, it doesn't modify the data on the server , At this point , It is Data security , And I'll talk about it later Post It can modify the data , So that's one of the differences .
Post: It is You can send a modification request to the server , To modify the server's , For example , We need to post back on the forum 、 Comment on the blog , That's what we need Post 了 , Of course, it can only get data .
Four 、 Understand business capabilities
First of all, make sure you understand the business , Only know the business , Only in this way can the function test be done well , And there will be some improvement .
When to access Automation ?
When your system stabilizes .
When to intervene in interface testing ?
When the interface is developed .
When to intervene in performance testing ?
When there's a promotion , Or rush shopping, etc .
5、 ... and 、 Use of test tools
Interface testing tool :
Postman Use Postman Conduct interface test , Input url Address , Request method , Click send to check whether the interface is correct .
Performance testing tools :jmeter
- Use jmeter Test the performance of the system , Pressure test the system 、 The load test 、 Stability test, etc
6、 ... and 、 Automated testing of code writing capabilities
ui Automated writing
web automation : Generally used python+selenium Yes web Website ui Automated scripting
app automation : Generally used python+appuim On the mobile terminal ui Automated scripting
Generally, it doesn't meet the demand bug stay debug in , The error of the program itself is error in .
7、 ... and 、Linux
1、Linux It's the basic skill of the tester , You don't need to master something that's too difficult or unusual Linux command , You can check the log normally , The positioning problem is OK .
2、 Junior testers often encounter , Find out bug, Situations that developers do not recognize or are unwilling to solve , How can testers get rid of this problem ? According to the findings bug The level of logging , To check the log , Location problem , First of all, let's talk about the log level . The higher the log level , The less information you output .
Interface automation writing
Generally used python+requests For interface automation testing
Skillfully use SQL
frequently-used sql sentence , Such as adding, deleting, modifying and checking .
Understand database transactions , Write stored procedures , Familiar with common system functions .
Understand and be able to backup the database , transfer , Restore , Mirror image, etc .
Yes sql Statement to tune , And monitor the statements that can be run to see the performance .
Understand the clustering of databases .
info: Code info Information , barring sql Sentences and so on debug Information ;
warning : Code warning message ;
error : The program itself reports an error message ;
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- To brush the video, it's better to see if you have mastered these interview questions. Slowly accumulating a monthly income of more than 10000 is not a dream.
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