Skill review of test engineer before interview

Knowledge points return Theoretical knowledge interview questions

Stage 1 、 Test career planning

Stage two 、 Theoretical basis of software testing

• What is software testing ？
• Classification of software testing methods
• Basic software development model

Stage three 、 Use of basic software testing tools

Use the bag grabbing tool

Packet capture tool is the software to intercept and view the content of network packets . By analyzing the captured packets , You can get useful information .
Common packet capture tools are Fiddler、Charles、Wireshark The main reason is that there are some differences in the application platform , The basic functions are similar . Can grasp http The protocol and https agreement , It can also simulate weak network testing and modifying request packets . Grab http The protocol package is filled into the computer under the same network ip The port of the tool is ok ; Mobile phones also need to operate under the same network , obtain https You need to install the description file of the corresponding software .

• Fiddler
  Fiddler Basic use tutorial
• Charles
  Charles Basic use tutorial
• Wireshark
  Wireshark Basic use tutorial

Interface tools use

• What is interface testing ？ Why do interface tests ？

The interface test is mainly used to detect the interaction points between the external system and the system as well as between the internal subsystems . The focus of the test is to check the exchange of data , Transfer and control the management process , And the mutual logical dependence between systems .
Nowadays, many front and back architectures of systems are separated , In terms of security , Only relying on the front end to restrict can not meet the security requirements of the system （ It's too easy to get around the front end ）, The back end is also needed to control , In this case, it needs to be verified from the interface level .

• What are the common interface testing tools ？

Jmeter、Postman、SoapUI

At present, many project business interfaces are interrelated Jmeter and Postman It can not only test a single interface, but also test multiple interfaces related to each other .

Jmeter
Jmeter Basic use tutorial

Postman
Postman Basic use tutorial

Mysql database /Navicat Use

If you want to practice mysql The operation of , It is suggested that Docker Installation on mysql Then go ahead and do .

• Navicat Premium 15 Activate and install

  Download tool Installation tutorial

• MySql Basic operation
  Basic additions, deletions, modifications

 Inquire about ：
#  Inquire about user All information in the table and according to id Descending order 
    SELECT username FROM `user` ORDER BY id DESC
    
#  Inquire about user User name information in the table 
    SELECT username FROM `user`

# where Conditions of the query user The user name in the table is admin1 Information about  
    SELECT * FROM `user` WHERE username = 'admin1'      
    
#  Internal connection  join on  Even the table query 
    SELECT a.username, b.addr FROM `user` a JOIN attendance b ON a.id = b.id

 increase ：
    INSERT INTO  Table name  (` Table field `,` Table field `) VALUES (' data ',' data ')

 modify ：
#  According to the user id Change user name 
    UPDATE  Table name  SET username = 'songpeilun' WHERE id = 1

 Delete ：
#  Delete according to user name 
    DELETE FROM  Table name  WHERE username = 'zhang3'

Linux Basic commands

frequently-used Linux command

Liunx command :
    cd   Entry directory 
    ls   Check the files in the directory 
        ls -a    Check all the files in the directory （ Including hidden files ）
        ls -l    Check the file type in the directory 、 jurisdiction 、 size 
    pwd   View the current full path 
    mkdir xxx   Create directory 
    rmdir xxx    Delete directory 
    touch xxx.txt   create a file 
    vi   or   vim      Edit the file 
    
    tail -f xxx.log      View log output in real time （tail -f -n 100 xxx.log  After viewing 100 Line logs ）
    cat xxx.log      View all log contents 
    head -n 1000 xxx.log   Before checking the log 10 That's ok 
    free     View server memory 
    kill -9   Kill process 
    rm -f     Delete file 
    zip      decompression 
    cp       Copy 

adb Order Monkey test

Monkey The test is Android A means of platform automation testing , adopt Monkey The program simulates the user touching the screen 、 slide Trackball、 Press the key to test the program on the device , How long does it take for the detection program to be abnormal .

• adb Download and install
  adb Unzip the package and download
  password : w55c

• The basic command uses

#  see adb The address of the connection 
adb devices

# Monkey Real machine random test 
1. Enter the decompression package platform-tools Under the table of contents 
cd F:\adt-bundle-windows-x86_64\sdk\platform-tools

2.  Enter the command + Package name address  
adb shell monkey -p com.tianque.ecommunity -v 5000 /all>E:\b.txt

#  Connect simulator address 
adb connect 127.0.0.1:62001 #  Nocturnal simulator address 

# Getting package name  
 Get the package name through the command ,adb shell ls /data/data, This command can display package, Then find the package you need to test in the list to test 

#  stay log Mid search 4 Keywords to analyze ： 
1、crash  Flash back   
2、exception  abnormal  
3、force closed  Forced exit   
4、anr（application no response）  Program not responding 

Monkey Detailed operation tutorial

Get Install and use

• Get Installation package download
  Baidu cloud Download
  password : bk54

• Get Common basic commands

1. After the first installation, you need to set the user name and mailbox 
$ git config --global user.name " user name "
$ git config --global user.”  mailbox @163.com” 

2.  initialization git
   git init

3.  Add the file to be submitted to the staging area 
   git add  File directory    Use spaces between multiple files and directories 
   git add .  On behalf of all files in the current directory submitted to the staging area 

4.  The files in the staging area are submitted to the historical submission area 
   git commit -m “ Mark and explain ” 

5.  The local warehouse is connected with the remote warehouse 
   git remote add origin  Warehouse address 

6.  Check whether the local warehouse is connected with the remote warehouse 
   git remote -v

7.  Commit to remote branch 
   git push origin  Remote branch name 

8.  Pull the remote code to the local branch 
   git pull origin  Branch name ; If there is a conflict   It can be used git status View conflict files 

9.  Cancel uploading modification 
   git reset .  Return to upload submission status  

10. Clone from a remote program to a local branch 
   git clone  Remote address 
   
11. View local branch 
   git branch 
# View remote branches 
   git branch -r
# Create a branch 
   git branch  Branch name 
# Create a remote branch dev 
   git checkout -b dev

12. Switch branches and delete branches ：
	 Switch branches ：git checkout  Branch name 
	 Delete the branch ：git branch -d  Branch name 
	 Delete remote branch ：git push origin --delete  Branch name 

13. View the status of the code in the current project 
    git status and git status . 

Get Learning Websites - Liao Xuefeng

Stage four 、 Python Study

Stage five 、 Interface automation understand / build

Stage six 、 UI Automated understanding / build

Stage seven 、 Docker Study

What is? Docker

Use of images and containers

Stage eight 、 Performance testing

Locust Use

Jmeter Pressure measurement

Stage eight 、 Complete project practical application