如何在多模块项目中访问Gradle中的测试JAR



我有多模块项目。从其中一个模块中,我需要从其他模块中引用测试类。我试图这样配置:

// core project
val testJar by tasks.registering(Jar::class) {
    archiveClassifier.set("tests")
    from(project.the<SourceSetContainer>()["test"].output)
}
val testArtifact by configurations.creating
artifacts.add(testArtifact.name, testJar)

我正在尝试参考其他项目的配置:

dependencies {
    // other dependencies ommited
    api(project(":core"))
    testImplementation(project(path = ":core", configuration = "testArtifact"))
}

但是这种配置不起作用。其他项目的汇编失败了,因为它没有看到core项目所需的测试类。依赖性见解:

./gradlew :service:dependencyInsight --dependency core --configuration testCompileClasspath

它给出以下内容:

project :core
  variant "apiElements" [
    org.gradle.usage = java-api
  ]
  variant "testArtifact" [
    Requested attributes not found in the selected variant:
      org.gradle.usage = java-api
  ]

我正在努力了解如何使配置工作,以便我可以编译service项目的测试类。用Kotlin DSL在Gradle 5.2.1上运行。

因此,上面描述的内容在命令行上有效,但在IDE中不起作用。

这是一个变体,它建立在变体感知依赖关系管理上:

plugins {
    `java-library`
}
repositories {
    mavenCentral()
}
group = "org.test"
version = "1.0"
val testJar by tasks.registering(Jar::class) {
    archiveClassifier.set("tests")
    from(project.the<SourceSetContainer>()["test"].output)
}
// Create a configuration for runtime
val testRuntimeElements by configurations.creating {
    isCanBeConsumed = true
    isCanBeResolved = false
    attributes {
        attribute(Usage.USAGE_ATTRIBUTE, project.objects.named(Usage::class, Usage.JAVA_RUNTIME_JARS))
    }
    outgoing {
        // Indicate a different capability (defaults to group:name:version)
        capability("org.test:lib-test:$version")
    }
}
// Second configuration declaration, this is because of the API vs runtime difference Gradle makes and rules around valid multiple variant selection
val testApiElements by configurations.creating {
    isCanBeConsumed = true
    isCanBeResolved = false
    attributes {
        // API instead of runtime usage
        attribute(Usage.USAGE_ATTRIBUTE, project.objects.named(Usage::class, Usage.JAVA_API_JARS))
    }
    outgoing {
        // Same capability
        capability("org.test:lib-test:$version")
    }
}
artifacts.add(testRuntimeElements.name, testJar)
artifacts.add(testApiElements.name, testJar)

由于具有变化的依赖性管理规则,上面看起来很多。但是,如果将其提取在插件中,则大多数可能会纳入。

在消费者方面:

testImplementation(project(":lib")) {
    capabilities {
        // Indicate we want a variant with a specific capability
        requireCapability("org.test:lib-test")
    }
}

请注意,这需要Gradle 5.3.1。该项目在Intellij 2019.1中的导入适当地介绍了依赖项,并且测试代码可以在IDE中编译。

哪个IDE?它在终端和IDE中都对我有用:我使用Intellij(2019.3)和Gradle(6.0.1,而不是Kotlin DSL)

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