Combine jacoco report from separate unit & integration testing tasks?

Help/Discuss
1

I have a pretty basic build.gradle with a small twist: I’ve separated unit & integration tests into separate tasks, and include by package. Trouble is, I can’t for the life of me get jacoco to generate a report for either of them, let alone my goal of a combined coverage report. I’ve tried pretty much every way I can think of to configure jacoco & I can’t get it to generate any reports; the only way I’ve succeeded is by using jacoco in the test task. Test source root is src/test/java, and in it are two packages, unit & integration.

How do I get jacoco to produce a combined report to determine code coverage across both unit & integration test code?

Here’s my build.gradle:

plugins {
    id 'java-library'
    id 'maven'
    id 'jacoco'
}

version = "${version}${Boolean.parseBoolean(releaseBuild) ? '' : '-SNAPSHOT'}"

sourceCompatibility = 1.8
targetCompatibility = 1.8

configurations {
    deployerJars
}

repositories {
    mavenCentral()
    mavenLocal()
    jcenter()

    maven {
        url "https://redacted"
    }
}

task unitTest(type: Test) {
    useJUnitPlatform()
    testLogging {
        showStandardStreams = true
    }
    include 'unit/**'
    dependsOn compileTestJava
    jacoco {
        include 'unit/**'
    }
}

task integrationTestOnly(type: Test) {
    useJUnitPlatform()
    testLogging {
        showStandardStreams = true
    }
    include 'integration/**'
    dependsOn compileTestJava
    mustRunAfter unitTest
    jacoco {
        include 'integration/**'
    }
}
task integrationTest(type: Task) {
    dependsOn unitTest, integrationTestOnly
}

test {
    exclude '**' // exclude all to leave testing to tasks unitTest & integrationTest
    dependsOn integrationTest
}

dependencies {
    api 'org.apache.commons:commons-math3:3.6.1'

    implementation 'com.google.guava:guava:23.0'

    testCompile 'org.junit.jupiter:junit-jupiter-api:5.2.0'
    testRuntime 'org.junit.jupiter:junit-jupiter-engine:5.2.0'

    deployerJars "org.apache.maven.wagon:wagon-http-lightweight:3.0.0"
}

uploadArchives {
    repositories.mavenDeployer {
        configuration = configurations.deployerJars
        repository(url: "https://redacted") {
            authentication(userName: System.properties["nexusUser"], password: System.properties["nexusPassword"])
        }
        snapshotRepository(url: "https://redacted") {
            authentication(userName: System.properties["nexusUser"], password: System.properties["nexusPassword"])
        }
    }
}

Thanks in advance!

-matthew

2

FYI, the only working jacoco incantation was if I replace my test task with the following:

test {
//    exclude '**' // exclude all to leave testing to tasks unitTest & integrationTest
//    dependsOn integrationTest
    useJUnitPlatform()
    testLogging {
        showStandardStreams = true
    }
    include '**'
    jacoco {
        include '**'
    }
}