JaCoCo with microservice project architecture?

My project consists of 6 microservices in java and I am trying to figure out how to merge the html reports from Jacoco into one overall coverage report. As it stands now I end up with a report for each service and it would be nice to have an aggregated one so I can more easily put it into our CI for visibility etc.

I've tried various things I've found on web searches, but I end up with an empty coverage file when I try those suggestions.

Here is my gradle file:

subprojects {
apply plugin: 'jacoco'
jacoco {
    toolVersion = "0.7+"
    reportsDir = file("$buildDir/reports/customJacocoReportDir")
}
jacocoTestReport {
    reports {
        xml.enabled true
        csv.enabled false
        html.destination "$buildDir/reports/jacocoHtml"
    }
}
test {
finalized by jacocoTestReport
...
}

I run gradle test to run the tests and get the report output per service using the above, but I am really stumped on how to merge them into a single html report. If anyone has done this successfully please let me know. Thank you.

At the moment we have the same kind of problem, the jacoco agent has a maven goal called "merge". You can specify the source files and run it:

jacoco:merge

Full name:

org.jacoco:jacoco-maven-plugin:0.7.8-SNAPSHOT:merge

Description:

Mojo for merging a set of execution data files (*.exec) into a single file

Attributes:

Requires a Maven project to be executed.
The goal is thread-safe and supports parallel builds.
Since version: 0.6.4.
Binds by default to the lifecycle phase: generate-resources.

<fileSets>
  <fileSet implementation="org.apache.maven.shared.model.fileset.FileSet">
    <directory>${project.build.directory}</directory>
    <includes>
      <include>*.exec</include>
    </includes>
  </fileSet>
</fileSets>

Actual link: http://www.eclemma.org/jacoco/trunk/doc/merge-mojo.html

Hope it helps :D

来源：https://stackoverflow.com/questions/39003273/jacoco-with-microservice-project-architecture

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gradle

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