Missed cross-module code coverage using Jacoco offline instrumentation in gradle project

[Sergiy Gnatyuk]

I've tried to setup Jacoco(offline instrumentation) in my gradle multi-module project. I have to use offline instrumentation because there are multiple PowerMock tests in the project.

I have two modules: A and B. Module A has tests that partially cover a code from module B but such code coverage data is missed in my summary report.

My configuration based on stackoverflow answer Jacoco offline instrumentation Gradle script

I've created a test project that demonstrates the issue: https://github.com/SurpSG/jacoco-offline-instrumentation

On the other hand, when I'm using jacoco gradle plugin I can observe that coverage data provided by module A for module B successfully collected to a summary report. 

I've created one more test project to demonstrate this: https://github.com/SurpSG/jacoco-gradle-plugin-merge-coverage

Is it a way to collect cross-module code coverage by fixing my build script configuration?

[Sergiy Gnatyuk]

To collect cross-module code coverage using jacoco offline instrumentation we need to add jars with instrumented classes to dependent module's classpath.

For more details please follow by the link: https://stackoverflow.com/questions/60009231/cross-module-code-coverage-with-jacoco-offline-instrumentation-in-gradle-mutlimo/60156859#60156859

Also, there is a working example: https://github.com/SurpSG/jacoco-offline-instrumentation

[kajal gupta]

Hey,

I am not able to get coverage for all the modules using the above mentioned links.

We have a root project called A, which has multiple sub-projects - n1, n2, n3,... The code coverage report is successful for subprojects.

We want to have the code coverage report added at the root level with this jacoco offline instrumentation approach. 

Gradle version - 6.6 

Java version - 1.8