Jacoco 无法在 Android 库模块中工作，coverage.ec 文件始终为空

Question

我正在尝试在多模块 Android 项目中使用 jacoco。该项目类似于 NowInAndroid。 Jacoco.kt 文件是相同的：

private val coverageExclusions = listOf(
    // Android
    "**/R.class",
    "**/R\$*.class",
    "**/BuildConfig.*",
    "**/Manifest*.*",
    "**/*_Hilt*.class",
    "**/Hilt_*.class",
)

private fun String.capitalize() = replaceFirstChar {
    if (it.isLowerCase()) it.titlecase(Locale.getDefault()) else it.toString()
}

internal fun Project.configureJacoco(
    androidComponentsExtension: AndroidComponentsExtension<*, *, *>
) {

    configure<JacocoPluginExtension> {
        toolVersion = "0.8.7"
    }

    androidComponentsExtension.onVariants { variant ->
        val myObjFactory = project.objects
        val buildDir = layout.buildDirectory.get().asFile
        val allJars: ListProperty<RegularFile> = myObjFactory.listProperty(RegularFile::class.java)
        val allDirectories: ListProperty<Directory> = myObjFactory.listProperty(Directory::class.java)
        val reportTask =
            tasks.register("create${variant.name.capitalize()}CombinedCoverageReport", JacocoReport::class) {
                classDirectories.setFrom(
                    allJars,
                    allDirectories.map { dirs ->
                        dirs.map { dir ->
                            myObjFactory.fileTree().setDir(dir).exclude(coverageExclusions)
                        }
                    }
                )
                reports {
                    xml.required.set(true)
                    html.required.set(true)
                }

                // TODO: This is missing files in src/debug/, src/prod, src/demo, src/demoDebug...
                sourceDirectories.setFrom(files("$projectDir/src/main"))
                println("This is the projectDir -> ${projectDir}")

                executionData.setFrom(
                    project.fileTree("$buildDir/outputs/unit_test_code_coverage/${variant.name}UnitTest")
                        .matching { include("**/*.exec") },

                    project.fileTree("$buildDir/outputs/code_coverage/${variant.name}AndroidTest")
                        .matching { include("**/*.ec") }
                )
            }


        variant.artifacts.forScope(ScopedArtifacts.Scope.PROJECT)
            .use(reportTask)
            .toGet(
                ScopedArtifact.CLASSES,
                { _ -> allJars },
                { _ -> allDirectories },
            )
    }

    tasks.withType<Test>().configureEach {
        configure<JacocoTaskExtension> {
            // Required for JaCoCo + Robolectric
            // https://github.com/robolectric/robolectric/issues/2230
            isIncludeNoLocationClasses = true

            // Required for JDK 11 with the above
            // https://github.com/gradle/gradle/issues/5184#issuecomment-391982009
            excludes = listOf("jdk.internal.*")
        }
    }

}

我还创建了一个

AndroidApplicationJacocoConventionPlugin

和一个

AndroidLibraryJacocoConventionPlugin

。就像 NowInAndroid 一样。

当我在应用程序模块中运行 androidTest 时，它工作正常，创建了coverage.ec 文件，但是当我尝试在库模块中运行它时，它创建了coverage.ec 但文件是空的，有人可以帮助我吗是吗？

我只是不明白为什么它适用于应用程序模块，但不适用于其他模块。

Answer 1

我发现问题是androidTest生成的apk在我的项目中不可调试。添加：

(this as com.android.build.gradle.internal.dsl.BuildType).isDebuggable = true

对于库模块解决了这个问题。