android studio环境下在主项目中统计所有子项目的覆盖率

本文针对已对在android studio上使用过jacoco统计代码覆盖率的开发者。如有不了解jacoco统计工程代码覆盖率情况,情看:http://www.jianshu.com/p/d9e67230dae8

目前就我的测试情况,AndroidTest的多项目工程代码覆盖率是可实现的,但是UnitTest仍然无法实现在主工程中统计所有子项目覆盖率

实现步骤:

1.依赖配置

1.1子项目(依赖项目)假设叫lib_project：

android {

...

    defaultConfig {

        //使用安卓集成环境测试,不影响juit

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    publishNonDefault true 默认以debug模式运行,一般用于子工程

//    testOptions {//jacoco配置(解决有时代码覆盖率为0的问题)

//        unitTests.all {

//            jacoco {

//                includeNoLocationClasses = true

//            }

//        }

//    }

    buildTypes {

        debug {

            //debug模式下生成代码覆盖率配置

            testCoverageEnabled = true

        }

        release {testCoverageEnabled true}

    }

}

1.2.主项目

android {

    ...

    defaultConfig {

        ...

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    compileOptions {

        sourceCompatibilityJavaVersion.VERSION_1_7

        targetCompatibilityJavaVersion.VERSION_1_7

    }

    buildTypes {

        release {

            testCoverageEnabled true

        }

        debug {

            testCoverageEnabled true

        }

    }

}

dependencies { 

   ..  

    debugCompile project(path:': lib_project ',configuration: 'debug')

    testCompile 'junit:junit:4.12' 

    androidTestCompile 'com.android.support.test:runner:0.4.1'

}

apply plugin: 'jacoco'

jacoco {

    //版本过高可能出现could not read execution data 问题

    toolVersion = "0.7.4+"

}

//下面核心代码,配置jacoco task

task jacocoTestReport(type: JacocoReport) {

    //androidTest和Test分别测试完

    group = "Reporting"

    description = "Generate Jacoco coverage reports" // exclude auto-generated classes and tests

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

    def debugTree = fileTree(dir:"./build/intermediates/classes/debug",excludes: fileFilter)

    sourceDirectories = files("src/main/java") //源码

    classDirectories = files([debugTree]) //class字节码

    project.rootProject.allprojects.each {project ->

         //添加子工程源码和class字节码， 使用 "debug" 编译类型测试覆盖率

       sourceDirectories += files((project.projectDir).toString() + "/src/main/java")

        classDirectories += fileTree(dir: (project.projectDir).toString() + "/build/intermediates/classes/debug", excludes: fileFilter)

    }

        additionalSourceDirs = files("src/main/java") 

         executionData = fileTree(dir: "$buildDir", includes: [

            "jacoco/testDebugUnitTest.exec",

            "outputs/code-coverage/connected/coverage.ec" ])

         reports {

            xml.enabled = true

            xml.destination = "${buildDir}/jacocoTestReport.xml"

            csv.enabled = false

            html.enabled = true

             //报告生成处     

            html.destination = "${buildDir}/reports/jacoco"

        }

}

2.先同步sync，然后在gradle列表中执行createDebugCoverageReport和testDebugUnitTest任务

3.执行jacocoTest任务,即可在之前定义的报告导出位置找到jacoco报告