Jacoco和单元测试与Android的摇篮 - 插件＆GT code覆盖率= 1.1

问题描述

我最近开始整合 Android的摇篮 - 插件 1.1.0在我的项目之一。该项目采用 robolectric 2.4 来运行单元测试。

I recently started integration android-gradle-plugin 1.1.0 in one of my projects. The project uses robolectric 2.4 to run unit tests.

这是一个多模块项目有非常复杂的依赖关系（有些模块依赖于其他模块）。类似的东西：

It's a multi module project with very complex dependencies (Some modules depend on other modules). Something like that:

--> application-module (dependsOn: module1, module2, module-core)
    --> module1 (dependsOn: module-core)
    --> module2 (dependsOn: module-core)
    --> module-core (dependsOn: module3, module4)
        --> module3 (library dependencies)
        --> module4 (library dependencies)

有关更清画面，请参阅 jacoco，例如的项目。

For a more cleared picture please see jacoco-example project.

我试图整合JaCoCo来生成单元测试报告，但它接缝对我来说，它只能运行 androidTests 这是基本的仪器测试。

I tried to integrate JaCoCo to generate reports for the unit tests, but it seams to me that it runs only androidTests which are basically instrumentation tests.

在一些google'ing我已经碰到在GitHub和其他物品的几个项目，但它们主要都集中在 Android的摇篮 - 插件previous版本或正在使用其他第三方插件，像 Android的单元测试的。

After some google'ing I've came across a few projects on GitHub and other articles, but they mainly are focused on previous versions of the android-gradle-plugin or are using other third party plugins like android-unit-test for example here.

可能是我失去了我的能力，以谷歌。但有人可以点我的方向在哪里可以找到关于在Android的摇篮插件，以及如何只对单元测试运行jacoco任务？新的东西，一些单证

May be I've lost my ability to google. But can somebody point me in a direction where I can find some documentations regarding the new stuff in android gradle plugin and how to run the jacoco task only for unit tests?

更新

从 nenick的例子采用的脚本：

apply plugin: "jacoco"

configurations {
    jacocoReport
}

task jacocoReport(dependsOn: 'testDebug') << {
    ant {
        taskdef(name:'jacocoreport',
                classname: 'org.jacoco.ant.ReportTask',
                classpath: configurations.jacocoReport.asPath)

        mkdir dir: "${buildDir}/test-coverage-report"
        mkdir dir: "${buildDir}/reports/jacoco/test/"

        jacocoreport {
            executiondata = files("${buildDir}/jacoco/testDebug.exec")

            structure(name: "${rootProject.name}") {
                classfiles {
                    fileset (dir: "${buildDir}/intermediates/classes/debug") {
                        //exclude(name: '**/*_*.class')
                        exclude(name: '**/R.class')
                        exclude(name: '**/R$*.class')
                        exclude(name: '**/BuildConfig.class')
                    }
                }

                sourcefiles {
                    fileset dir: "src/main/java"
                    fileset dir: "${buildDir}/generated/source/buildConfig/debug"
                    fileset dir: "${buildDir}/generated/source/r/debug"
                }
            }

            xml destfile: "${buildDir}/reports/jacoco/test/jacocoTestReport.xml"
            html destdir: "${buildDir}/test-coverage-report/"
        }
    }
}

dependencies {
    jacocoReport 'org.jacoco:org.jacoco.ant:0.7.2.201409121644'
}

在该 ./ gradlew jacocoReport 执行并生成报告，但它显示了0（零）测试覆盖率，这是不可能的，因为至少有一半的类都是测试。

After that the ./gradlew jacocoReport executes and generates the report, but it shows 0 (zero) test coverage, which is impossible because at least half of all classes are tested.

UPDATE_2

尝试了这个<一href="http://raptordigital.blogspot.de/2014/08/$c$c-coverage-reports-using-robolectric.html">example.添加下一个任务我的摇篮构建文件之一：

Tried out this example. Adding the next task to one of my gradle build files:

task jacocoTestReport(type:JacocoReport, dependsOn: "testDebug") {
    group = "Reporting"
    description = "Generate Jacoco coverage reports"

    classDirectories = fileTree(
            dir: "${buildDir}/intermediates/classes/debug",
            excludes: ['**/R.class',
                       '**/R$*.class',
                       '**/*$ViewInjector*.*',
                       '**/BuildConfig.*',
                       '**/Manifest*.*']
    )

    sourceDirectories = files("${buildDir.parent}/src/main/java")
    additionalSourceDirs = files([
            "${buildDir}/generated/source/buildConfig/debug",
            "${buildDir}/generated/source/r/debug"
    ])
    executionData = files("${buildDir}/jacoco/testDebug.exec")

    reports {
        xml.enabled = true
        html.enabled = true
    }
}

同样的问题，生成报告，但code覆盖率仍为零。

Same issue, the reports are generated, but the code coverage is still zero.

UPDATE_3

据接缝，从UPDATE_2任务的工作，但仅适用于具有模块的应用插件：com.android.application（该报表的正确生成）。但对于模块的机器人库（应用插件：com.android.library）的报告显示零覆盖，altho该模块包含更多的测试，那么应用程序模块

It seams that the task from UPDATE_2 worked but only for the module with apply plugin: 'com.android.application' (The reports a generated correctly). But for modules that are android libraries (apply plugin: 'com.android.library') the reports show zero coverage, altho the modules contain more tests then the application module.

UPDATE_4

创建了一个简单的示例项目，演示了我的问题。目前，如果你运行 ./ gradlew jacocoReport 生成报告，但没有测试覆盖率则显示模块项目。请参阅此链接

Created a simple example project that demonstrates my issue. Currently if you run ./gradlew jacocoReport the report is generated, but no test coverage is displayed for the module projects. See this link

便签：当试验中AndoridUnitTests（白化的JUnit 4和Robolectric）JaCoCo报告显示，覆盖所有的模块

Short note: When the test where AndoridUnitTests (whiteout JUnit 4 and Robolectric) JaCoCo reports showed coverage for all the modules.

任何想法？

推荐答案

在在此我偶然发现了一些额外的搜索项目我不得不做出一些修改，以便有解决方案，可以为我的项目类型的工作，但现在被正确生成的测试覆盖报告。

After some additional search I've stumbled upon this projectI had to make some modifications so that there solution can work for my type of project, but now the test coverage reports are generated properly.

我已经把所采用的改变我的例如Gi​​tHub库的情况下，有人会在将来有类似的问题。

I've pushed the adopted changes to my example github repo in case someone will have a similar problem in the future.

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