在工程下面的build.gradle 增加配置

1.增加Plugin

apply plugin: \’jacoco\’

 

2. 增加jacoco版本

  1. jacoco{
  2.     version "0.7.4.201502262128"
  3. }

 

3.申明一个gradle task

  1.    //jacocoTestReport依赖于connectedAndroidTest task，所以在执行jacoco之前需要先执行connectedAndroidTest，也就是说需要连接测试机（模拟器or真机）
  2.     task jacocoTestReport(type:JacocoReport,dependsOn:"connectedAndroidTest"){
  3.         group = "Reporting"
  4.         description = "Generate Jacoco coverage reports after running tests."
  5.         reports{
  6.             xml.enabled = false
  7.             html.enabled = true
  8.             csv.enabled = false
  9.         }
  10.         classDirectories = fileTree(
  11.                 dir : "$buildDir/intermediates/classes/debug",
  12.     excludes : [
  13.             \'**/*Test.class\',
  14.             \'**/R.class\',
  15.             \'**/R$*.class\',
  16.             \'**/BuildConfig.*\',
  17.             \'**/Manifest*.*\'
  18.     ]
  19.     )
  20.     def coverageSourceDirs = [\'src/main/java\']
  21.     additionalSourceDirs = files(coverageSourceDirs)
  22.     sourceDirectories = files(coverageSourceDirs)
  23.     additionalClassDirs = files(coverageSourceDirs)
  24.     executionData = files("$buildDir/outputs/code-coverage/connected/coverage.ec")
  25. }

　　

4. 打开testCoverageEnabled

  1.  buildTypes {
  2.             debug {
  3.                 testCoverageEnabled = true
  4.             }
  5.         }

　　

 

  1. 5. 完整的配置
  1. apply plugin: \'com.android.application\'
  2. apply plugin: \'jacoco\'
  3.  
  4. android {
  5.     compileSdkVersion 25
  6.     buildToolsVersion "26.0.2"
  7.     defaultConfig {
  8.         applicationId "com.example.androidunittest"
  9.         minSdkVersion 15
  10.         targetSdkVersion 25
  11.         versionCode 1
  12.         versionName "1.0"
  13.         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  14.     }
  15.     buildTypes {
  16.         release {
  17.             minifyEnabled false
  18.             proguardFiles getDefaultProguardFile(\'proguard-android.txt\'), \'proguard-rules.pro\'
  19.             testCoverageEnabled = true
  20.         }
  21.         buildTypes {
  22.             debug {
  23.                 testCoverageEnabled = true
  24.             }
  25.         }
  26.  
  27.         jacoco{
  28.             version "0.7.4.201502262128"
  29.         }
  30.     }
  31.  
  32.  
  33. //jacocoTestReport依赖于connectedAndroidTest task，所以在执行jacoco之前需要先执行connectedAndroidTest，也就是说需要连接测试机（模拟器or真机）
  34.     task jacocoTestReport(type:JacocoReport,dependsOn:"connectedAndroidTest"){
  35.         group = "Reporting"
  36.         description = "Generate Jacoco coverage reports after running tests."
  37.         reports{
  38.             xml.enabled = false
  39.             html.enabled = true
  40.             csv.enabled = false
  41.         }
  42.         classDirectories = fileTree(
  43.                 dir : "$buildDir/intermediates/classes/debug",
  44.                 excludes : [
  45.                         \'**/*Test.class\',
  46.                         \'**/R.class\',
  47.                         \'**/R$*.class\',
  48.                         \'**/BuildConfig.*\',
  49.                         \'**/Manifest*.*\'
  50.                 ]
  51.         )
  52.         def coverageSourceDirs = [\'src/main/java\']
  53.         additionalSourceDirs = files(coverageSourceDirs)
  54.         sourceDirectories = files(coverageSourceDirs)
  55.         additionalClassDirs = files(coverageSourceDirs)
  56.         executionData = files("$buildDir/outputs/code-coverage/connected/coverage.ec")
  57.     }
  58.  
  59.  
  60.  
  61.     dependencies {
  62.         compile fileTree(dir: \'libs\', include: [\'*.jar\'])
  63.         androidTestCompile(\'com.android.support.test.espresso:espresso-core:2.2.2\', {
  64.             exclude group: \'com.android.support\', module: \'support-annotations\'
  65.         })
  66.         compile \'com.android.support:appcompat-v7:23.1.1\'
  67.         compile \'com.android.support.constraint:constraint-layout:1.0.2\'
  68.         testCompile \'junit:junit:4.12\'
  69.  
  70.         androidTestCompile \'com.android.support.test:runner:0.5\'
  71.         androidTestCompile \'com.android.support.test:rules:0.5\'
  72.         androidTestCompile \'com.android.support.test.espresso:espresso-core:2.2.2\'
  73.  
  74.     }
  75. }

　　

6. 运行报告

gradlew jacocoTestReport

运行生成报告命令可能出现的问题

1). Could not find com.android.tools.build:gradle:2.2.3

解决方法：

  1. buildscript {
  2.     repositories {
  3.         mavenCentral()
  4.         jcenter()
  5.     }
  6.  
  7.     dependencies {
  8.         classpath \'com.android.tools.build:gradle:2.2.3\'
  9.     }
  10.  
  11. }

　　

2). Unsupported major.minor version 52.0

解决方法：

 

 

 

参考：http://blog.csdn.net/it_talk/article/details/50267573



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