問題描述

我最近開始在我的一個項目中集成 android-gradle-plugin 1.1.0.該項目使用 robolectric 2.4 來運行單元測試.

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

這是一個多模塊項目，具有非常復雜的依賴關系(一些模塊依賴于其他模塊).類似的東西:

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)

如需更清晰的圖片，請參閱 jacoco-example 項目.

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

我試圖集成 JaCoCo 來為單元測試生成報告，但在我看來它只運行 androidTests 基本上是儀器測試.

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

經過一些谷歌搜索后，我在 GitHub 和其他文章上遇到了一些項目，但它們主要集中在以前版本的 android-gradle-plugin 或正在使用其他第三方android-unit-test 例如這里這樣的插件.

After some google'ing I've come 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.

可能是我失去了使用谷歌搜索的能力.但是有人可以指出我可以找到一些關于 android gradle 插件中的新內容以及如何僅針對單元測試運行 jacoco 任務的文檔的方向嗎?

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

采用 nenick 的例子的腳本:

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'
}

之后，./gradlew jacocoReport 執行并生成報告，但它顯示 0(零)測試覆蓋率，這是不可能的，因為至少有一半的類都經過測試.

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

試用了這個示例.將下一個任務添加到我的一個 gradle 構建文件中:

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
    }
}

同樣的問題，生成了報告，但代碼覆蓋率仍然為零.

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

UPDATE_3

UPDATE_2 中的任務似乎有效，但僅適用于帶有 apply plugin: 'com.android.application' 的模塊(報告正確生成).但是對于 android 庫模塊(apply plugin: 'com.android.library')，報告顯示零覆蓋率，盡管模塊包含的測試比應用程序模塊多.

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, although the modules contain more tests then the application module.

UPDATE_4

創建了一個簡單的示例項目來演示我的問題.目前，如果您運行 ./gradlew jacocoReport 會生成報告，但不會顯示模塊項目的測試覆蓋率.請參閱此 鏈接

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

簡短說明:當測試是 AndroidUnitTests(白化 JUnit 4 和 Robolectric)時，JaCoCo 報告顯示了所有模塊的覆蓋范圍.

Short note: When the tests were AndroidUnitTests (whiteout JUnit 4 and Robolectric) JaCoCo reports showed coverage for all the modules.

有什么想法嗎?

推薦答案

經過一番折騰，我決定創建一個 開源 Gradle 插件 .

After the hassle, I decided to create an open source Gradle plugin for that.

根 build.gradle

buildscript {
    repositories {
        mavenCentral() // optional if you have this one already
    }
    dependencies {
        classpath 'com.vanniktech:gradle-android-junit-jacoco-plugin:0.16.0'
    }
}

apply plugin: 'com.vanniktech.android.junit.jacoco'

然后直接執行

./gradlew jacocoTestReportDebug

它將在調試模式下運行 JUnit 測試，然后在相應的構建目錄中以 XML 和 HTML 形式為您提供 Jacoco 輸出.

It'll run the JUnit tests in Debug Mode and then give you the Jacoco output in XML and HTML form in the corresponding build directory.

它還支持風味.將創建紅色和藍色 2 種口味的任務

It also supports flavors. Having 2 flavors red and blue those tasks would be created

• jacocoTestReportRedDebug
• jacocoTestReportBlueDebug
• jacocoTestReportRedRelease
• jacocoTestReportBlueRelease

這篇關于Jacoco 和單元測試代碼覆蓋率與 android-gradle-plugin >= 1.1的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！