Code coverage to sonar from android tests using gradle

Example of build.gradle with code-coverage and sonar

apply plugin: 'com.android.application'

    android {

        compileSdkVersion 20
        buildToolsVersion '20.0.0'
        defaultConfig {
            applicationId 'com.example.coverage'
            minSdkVersion 11
            targetSdkVersion 19
            versionCode 1
            versionName '1.0'
            testHandleProfiling true
            testFunctionalTest true

        }
        buildTypes {
            debug {
                testCoverageEnabled true
            }
            release {
                runProguard false
                proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            }
        }
        compileOptions {

            apply plugin: 'sonar-runner'
        }

        packagingOptions {
            exclude 'META-INF/DEPENDENCIES.txt'
            exclude 'META-INF/LICENSE.txt'
            exclude 'META-INF/NOTICE.txt'
            exclude 'META-INF/NOTICE'
            exclude 'META-INF/LICENSE'
            exclude 'META-INF/DEPENDENCIES'
            exclude 'META-INF/notice.txt'
            exclude 'META-INF/license.txt'
            exclude 'META-INF/dependencies.txt'
            exclude 'META-INF/LGPL2.1'
            exclude 'META-INF/services/javax.annotation.processing.Processor'
            exclude 'LICENSE.txt'
        }
    }

    sonarRunner {

        sonarProperties {

            property "sonar.projectKey", "coverage-example"
            property "sonar.projectName", "Coverage Example"
            property "sonar.projectVersion", "1.0"

            property "sonar.sources", "src/main/java"
            property "sonar.binaries", "build"
            property "sonar.test", "src/androidTest/java"

            property "sonar.profile", "Sonar way"
            property "sonar.language", "java"
            property "sonar.sourceEncoding", "UTF-8"

            property "sonar.dynamicAnalysis", "reuseReports"

            property "sonar.junit.reportsPath", "build/outputs/reports/coverage/debug"
            property "sonar.cobertura.reportPath", "build/outputs/reports/coverage/debug/cobertura.xml"
            property "sonar.java.coveragePlugin", "cobertura"

            property "sonar.host.url", "http://localhost:9099"
        }
    }

Now run

gradlew clean assembleDebug createDebugCoverageReport

Now you will be able to see a xml containing the code coverage report in this directory

app/build/outputs/reports/coverage/debug/report.xml

Now before we run the sonar task, we have to convert the report.xml something that sonar can read, it will use this done in python script that performs the conversion of this file to the format that the plugin sonar cobertura can use it.

Link the script on github

python cover2cover.py app/build/outputs/reports/coverage/debug/report.xml src/main/java > app/build/outputs/reports/coverage/debug/cobertura.xml && cp app/build/outputs/androidTest-results/connected/* app/build/outputs/reports/coverage/debug/

Now run

gradlew sonarRunner