How to apply JACOCO to actual enterprise practice~Test it, only 6 points are needed

1. Download jacoco

Official website: https://www.jacoco.org/jacoco/index.html

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2. Copy the jar package

3. Start jacocoagent and monitor the project under test

java -javaagent:jacocoagent.jar=includes=*,output=tcpserver,port=6300,address=localhost,append=true -jar demo-0.0.1.jar
#demo-0.0.1.jar为被测项目jar包

 

4. cli package dump generates exec file (note that it must be tested after completion)

java -jar cli-0.8.7.jar dump --address 127.0.0.1 --port 6300 --destfile jacoco-demo.exec
# --address 127.0.0.1 --port 6300 指向jacocoagent启动IP和端口
# jacoco-demo.exec 为生成exec文件名

 

5. cli package exec generates report report

java -jar cli-0.8.7.jar report jacoco-demo.exec --classfiles D:\code\devops\SBD\target\classes --sourcefiles D:\code\devops\SBD\src\main\java --html html-report --xml report.xml --encoding=utf-8
#--sourcefiles 和 --classfiles 为本地被测项目源码和字节码路径

 6. Coverage report

Click on the report file under index.html

jacoco coverage, Cov represents coverage

The table columns are: elements; number of uncovered bytecode lines; number of uncovered branches; cyclomatic complexity; rows; methods; classes;

Coverage ID:

Conditional coverage: red diamond: indicates no coverage; yellow diamond: indicates partial coverage; green diamond: indicates full coverage;

Row coverage: full coverage (green), uncovered (red), half covered (yellow), ignored (white)