jacoco.gradle

apply plugin: 'jacoco'
apply plugin: 'com.github.dawnwords.jacoco.badge'

jacoco {
    toolVersion = "$jacocoVersion"
}

tasks.withType(Test) {
    jacoco.includeNoLocationClasses = true
	jacoco.excludes = ['jdk.internal.*']
}

task jacocoTestReport(type: JacocoReport) {

    group "Reporting"
    description "Generate Jacoco coverage reports."

    reports {
        xml.enabled = true
        html.enabled = true
    }

    def execution = []
    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']

    additionalClassDirs fileTree(dir: "$project.buildDir/intermediates/javac/debug", excludes: fileFilter)
    additionalClassDirs fileTree(dir: "$project.buildDir/tmp/kotlin-classes/debug", excludes: fileFilter)
    additionalSourceDirs files("$project.projectDir/src/main/java")
    execution << fileTree(dir: project.buildDir,
            includes: ['jacoco/testDebugUnitTest.exec', 'outputs/code_coverage/debugAndroidTest/connected/**/*.ec'])

    print execution
    executionData {
        files(execution)
    }
}

jacocoBadgeGenSetting {
    jacocoReportPath  "$buildDir/reports/jacoco/jacocoTestReport/jacocoTestReport.xml"
    readmePath "$projectDir/../README.md"
    // since v0.2.0, percentage limitation (0-100) for different type of coverage
    limit = ['instruction': 0, 'branch': 0, 'line': 0, 'method': 0, 'class': 0]
}