usb-serial-for-android/usbSerialForAndroid/coverage.gradle

// see https://github.com/mik3y/usb-serial-for-android/wiki/Device-Tests-&-Coverage-Report for instructions
apply plugin: 'jacoco'

android {
    flavorDimensions += 'device'
    productFlavors {
        anyDevice {
            // Used as fallback in usbSerialExample/build.gradle -> missingDimensionStrategy, but not for coverage report
            dimension 'device'
        }
        arduino {
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'CdcAcm']
        }
        ch340 {
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Ch34x']
        }
        cp2102 { // and cp2105 first port
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Cp21xx']
        }
        cp2105 { // second port
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Cp21xx', 'test_device_port': '1']
        }
        ft232 { // and ft2232 first port
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Ftdi']
        }
        ft2232 { // second port
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Ftdi', 'test_device_port': '1']
        }
        pl2303 {
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Prolific']
        }
        pl2303t {
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Prolific']
        }
        pl2303g {
            dimension 'device'
            testInstrumentationRunnerArguments = ['test_device_driver': 'Prolific']
        }
    }

    buildTypes {
        debug {
            enableUnitTestCoverage true
            enableAndroidTestCoverage true
        }
    }
}

// create report even if tests fail
project.gradle.taskGraph.whenReady {
    -> project.tasks.findAll { it.name =~ /connected.+AndroidTest/ }.each {
        it.ignoreFailures = true
    }
}

task jacocoTestReport(type: JacocoReport, dependsOn: ['compileAnyDeviceDebugSources'
                                                  /*, 'testAnyDeviceDebugUnitTest' */
                                                  /*, 'create<device>DebugCoverageReport' */]) {
    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']
    def debugTree = fileTree(dir: "$project.buildDir/intermediates/javac/anyDeviceDebug", excludes: fileFilter)
    def mainSrc = "$project.projectDir/src/main/java"

    reports.xml.required = true
    sourceDirectories.from files([mainSrc])
    classDirectories.from files([debugTree])
    executionData.from fileTree(dir: project.buildDir, includes: [
            'outputs/unit_test_code_coverage/anyDeviceDebugUnitTest/testAnyDeviceDebugUnitTest.exec',
            'outputs/code_coverage/*DebugAndroidTest/connected/*/coverage.ec'
    ])
}