That's what software testing is all about?!

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1、 What is software testing ？

Check whether the functions on the software are in accordance with the expected results , Whether the actual result is the same as the expected result .

The highest level of software testing is prevention bug.

2、 Professional development of software testing

• A functional test
• automated testing （ Test Development 、 Continuous integration 、testops）
• Performance testing ( Advanced performance testing 、 Architects ）
• Switch （ Development 、 product 、 Operations etc. ）

3、 Classification of software testing

1、 According to the method ：

• Black box testing （ Check whether the input and output are correct , There's no need to understand the principle ）
• White box testing ( Understand the internal structure , Look at the code, right ）
• Grey box testing （ Black box and white box ）

2、 In the direction of ：

• A functional test
• Performance testing （ Pressure test —— Find software performance bottlenecks 、 The load test 、 Concurrent test —— Many people do the same thing at the same time , For example, will the second kill 2 People grab at the same time ）
• Security testing —— hackers

3、 By stage :

• unit testing —— Method 、 function 、 class
• Integration testing —— Interface
• The system test —— function 、 Security 、 performance 、 Compatibility （web、app）、 Ease of use （ User experience ）、 stability （7*24 Whether the hours are stable ）、UI（ Interface ）
• The acceptance test

4、 By object ：

• APP test
• WEB test
• Internet of things testing
• Internet of vehicles test
• Applet testing
• Embedded testing
• Big data test
• AI test

5、 By status ：

• The static test （ White box look at the code ）
• Dynamic testing （ Black box or grey box ）

6、 other ： Smoke testing （ The test before the test ）、 regression testing （ Check bug Has it been modified ）、α test （ Internal measurement ）、β test （ Public survey ）

4、 R & D management model

1、 The waterfall flow ：

2、V Font type ：

3、W Font type ：

4、 Agile model ： Efficient work 、 Timely communication 、 daily 、 Whiteboard 、 Morning meeting / Standing will 、 Centralized office

5、 Testing process

1、 Demand analysis stage ：

• Demand analysis —— The requirements document 、 prototype 、 Dictation ;
• Learning business processes ;
• Extract function points ;
• Write requirement analysis specification ; What to do without demand —— Refer to the implementation of the same type of products that have been mature on the market

2、 Test design stage ：

• test plan ——5W1H, The emphasis is on the arrangement and allocation of time and personnel and resources
• Test plan ： The focus is on how to test for each test content 、 What test plan to use 、 What testing tools
• The test strategy ： Which test items should be tested first 、 What content is tested after 、 What are the criteria for starting and ending testing
• The test case ： Use case number （ Unique ）、 Use case name （ simply , Use the minimum number of words to describe what this use case does ）、 precondition （ Before executing this use case , The software must meet the requirements ）、 priority （ The time to execute this use case requires urgent registration ）、 Importance level （ The importance level of the function under test in the system ）、 Test data 、 testing procedure 、 Expected results 、 The actual result

3、 Test execution phase

• Compare the expected result with the actual result , If it's the same, go through , If not, there are problems
• Submit bug
• regression testing ： In version 2 Check on the version 1 Have the problems found on have been solved

4、 Test summary stage
Write test report ：

• A summary of the work
• Yes BUG Statistical analysis of ： test 、 Development 、 Software modules 、 Grade 、 The time to fix it 、 Each version 、 state
• Evaluation of the quality of the software under test ： First and second class BUG It's all closed , Level three BUG Shut down the 80%, Level Four BUG It doesn't matter

6、 The test method

• Equivalence class ： Represent the majority by a few parts
  Invalid equivalence class 、 Effective equivalence class
  

• The boundary value

• Scene method

• Cause and effect diagram

• Decision table

• Path coverage

7、 review

• Peer review
• Group review
• Department review
• Project review
• Third party review
• Mail review

8、BUG Management of

• BUG Management platform / System / Tools
  ZenTao 、BUGFree、ALM/QC、JIRA
  

• BUG The six elements of
  1、 Number
  

  2、BUG The name of （ simply , When you see the title, you know what the problem is ）

  3、BUG The priority of the （ According to the actual situation , This BUG Need priority , High school low ）

  4、BUG Level of （ Deadly —— Affect the normal use of the core process of the product , Cause the software to hang up 、 Flash back 、 Collapse , It's about money ; serious —— The function cannot be used normally ; General —— There's something wrong with some of the features ; Slight —— Something suggestive , Such as user experience ,UI On the problem ）

  5、BUG The steps to reproduce
  You can copy the steps of the use case 、 Expected results 、 The actual result
  

  6、 The attachment
  Screenshot / journal / video （ The purpose is to BUG evidence ）
  

• BUG Life cycle of
  
  

• BUG The state of
  newly build 、 open 、 Confirmed 、 resolved 、 Refuse 、 Reopen 、 close 、 Postpone processing 、 repeat BUG
  

• BUG Level of

9、 The test application

1、APP test

• install / uninstall
• Message push
• to update
• Weak network test （2G/3G/4G/5G/WIFI）
• Scenario interaction testing （ There's a call 、 Listening to music 、 Call camera 、 Switching between the front and back stations ）
• Authority test
• Offline testing

2、WEB test

10、 Software architecture

1、B/S
browser browser
server The server

2、C/S
client client （ Separate installation required , such as APP）
server The server

11、 Version of the iteration

1. Over time / The promotion of the number of tests , There will be many releases , The version number is constantly superimposed
2. Incremental testing ： Only test the functions that are known to change
3. Full test ： Test all functions of the software