Jacoco Runtime Coverage :issues& complications

[Girish Kumbharthi]

Hi ,

I have been trying to integrate jacoco code coverage in our project to get the runtime data from the application servers.

Our aim is to show the testing teams, that how much amount of code coverage is being done through automation test suites.

We are able to get some percentage of coverage from the configuration being done. We have added the runtime agent jar in the classpath during the server start up and the dumps from the application server  are being supplied to maven build job which runs the sonar scan and publishes to sonarQube dashboard.

We are facing few complications and issues during this setup. I have classified them as different topics as below: 

Please suggest me 

Only Single port for Jacoco Agent:

Right now , our application runs on weblogic with 2 managed servers followed by f5.

The application requests can hit any of the managed servers during the testing

on the startup scripts, we are giving arguments as ,

JAVA_OPTIONS="${JAVA_OPTIONS} -javaagent:/opt/apps/qa/apps/lib/jacoco.agent-runtime.jar=output=tcpserver,append=true,classdumpdir=cdd,address=*,port=6300"

As we have configured the jacoco classpath in the startup script, port is occupied by the managed server,which ever starts first.,the other server doesn't get the port.

In that case , will the coverage be 50% of the actual coverage ? as the second server doesnt report anything to Jacoco agent?

Or will the jacoco agent will listen to both the JVMS of the  weblogic instance?

Can we pass two port numbers as arguments to jacoco maven plugin?

Code sync on source code and Application server:

Our Development team will be continuously checking the code in github repository, while the code deployed at the application server might be at the different level.

So if we run the sonar scan along with jacoco plugin, will there be any issue as the code deployed vs the code being run might be little bit out sync? 

Will it effect the amount of code coverage?

Multiple Instances Coverage Report :

For each application in our project we have 4 testing environments, 2 will be run will manual testing and other 2 will be run with automation test suites.

is it possible to show the Integration Code Coverage Reports from 4 environments on a Single SonarQube Dashboard page ?

Thanks

Girish Kumbharthi