Sample Jacoco Gradle : 2022

jacoco.gradle

apply plugin: 'jacoco'

ext {
    coverageExclusions = [
            '**/src/main/res/**',
            '**/R.class',
            '**/*Activity*',
            '**/*response*',
            '**/*request*',
            '**/*Util*',
            '**/*Adapter*',
            '**/*Fragment*',
            '**/*StringFactory*',
            '**/*ImageFactory*',
            '**/R$*.class',
            '**/*$InjectAdapter.*',
            '**/*$ModuleAdapter.*',
            '**/Dao*.*',
            '**/*$ViewInjector*.*',
            '**/*$ViewBinder*.*',
            '**/*MembersInjector*.*',
            '**/BuildConfig.*',
            '**/Manifest*.*',
            '**/*Companion*.*',
            '**/*$Lambda$*.',
            '**/*Factory*.',
            '**/*$Builder*',
            '**/*$Parcelable*.*',
            '**/*Test*.*',
            "**/android/databinding/**",
            "**/androidx/databinding/*",
            '**/com/myApp/android/generated/callback/*',
            '**/widgets/*',
            '**/me/**/*.*',
            '**/org/**/*.*',
            '**/org/**/*.*',
            '**/*$Result.*', /* filtering `sealed` and `data` classes */
            '**/*$Result$*.*',/* filtering `sealed` and `data` classes */
            '**/KtorClientProvider*',
            '**/commonMain/**/sqldelight/**',
            '**/commonMain/**/api/**',
            '**/*StringFactory*',
            '**/*ImageFactory*',
            '**/KtorClientProvider*',
            '**/commonMain/**/request/**',
            '**/commonMain/**/response/**',
            '**/commonMain/**/model/**',
            '**/commonMain/**/di/**',
            '**/commonMain/**/MR/**',
            '**/commonMain/**/factory/**',
            '**/commonMain/**/helper/**',
            '**/commonMain/**/arch/**',
            '**/commonMain/**/repository/**',
            '**/commonMain/**/models/**',
            '**/commonMain/**/sqldelight/**',
            '**/commonMain/**/validation/**',
            '**/commonMain/**/impl/**',
            '**/commonMain/**/command/**',
            '**/*Repository',
            '**/*Dto',
            '**/*Api',
            '**/*Impl',
            '**/*ResponseModel',
            '**/*DetailsModel',
            '**/*DetailModel',
            '**/*AnalyticsEvents*',
            '**/*Logger*',
            '**/*SettingsStore*',
            '**/*Koin*',
            '**/*SingleEvent*',
            '**/*ApiConstants*',
            '**/*CustomHttpLogger*',
            '**/*ErrorCodes*',
            '**/*FailureHandler*',
            '**/*NetworkHelper*',
    ]
}

jacoco {
    toolVersion "0.8.8"
    reportsDirectory = layout.buildDirectory.dir('reports')
}

tasks.withType(Test) {
    jacoco.includeNoLocationClasses = true
    jacoco.excludes = ['jdk.internal.*']
    // see related issue https://github.com/gradle/gradle/issues/5184#issuecomment-457865951
}

tasks.withType(Test) {
    finalizedBy jacocoTestReport // report is always generated after tests run
}

task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest']) {
    group = "Reporting"
    description = "Generate Jacoco coverage reports"

    reports {
        xml.required.set(true)
        html.required.set(true)
    }

    def javaTree = fileTree(dir: "${buildDir}/intermediates/javac/debug/classes", excludes: coverageExclusions)
    def mainSrc = "/src/commonMain/kotlin"
    def kotlinTree = fileTree(dir: "${buildDir}/tmp/kotlin-classes/debug", excludes: coverageExclusions)


    additionalSourceDirs.from = files(mainSrc)
    sourceDirectories.from = files([mainSrc])
    classDirectories.from = files([kotlinTree,javaTree])

    executionData.from = files("$buildDir/jacoco/testDebugUnitTest.exec")
}

Added