与Gradle Kotlin DSL的集成测试

Question

我正在使用这篇博文为Spring Boot项目配置集成测试，但我仍然停留在声明源集上。我也在StackOverflow上找到了这篇文章，但我想我已经做得有点远了。

我的项目结构是

project
|_ src
  |_ main
  | |_ kotlin
  | |_ resources
  |_ testIntegration
  | |_ kotlin
  | |_ resources
  |_ test
  | |_ kotlin
  | |_ resources
  |_ build.gradle.kts
  |_ ... other files

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    idea
    kotlin("jvm")
    id("org.springframework.boot") version "2.0.5.RELEASE"
    id("org.jetbrains.kotlin.plugin.spring") version "1.2.71"
}

fun DependencyHandlerScope.springBoot(module: String) = this.compile("org.springframework.boot:spring-boot-$module:2.0.5.RELEASE")
fun DependencyHandlerScope.springBootStarter(module: String) = this.springBoot("starter-$module")

dependencies {
    springBoot("devtools")

    springBootStarter("batch")
    springBootStarter("... spring boot dependencies")


    compile("... more dependencies")

    testCompile("... more test dependencies")
}

val test by tasks.getting(Test::class) {
    useJUnitPlatform { }
}

kotlin {
    sourceSets {
        val integrationTest by creating {
            kotlin.srcDir("src/testIntegration/kotlin")
            resources.srcDir("src/testIntegration/resources")
        }
    }
}

val integrationTestCompile by configurations.creating {
    extendsFrom(configurations["testCompile"])
}
val integrationTestRuntime by configurations.creating {
    extendsFrom(configurations["testRuntime"])
}

val testIntegration by tasks.creating(Test::class) {
    group = "verification"
    testClassesDirs = kotlin.sourceSets["integrationTest"].kotlin
}

idea {
    module {
        testSourceDirs.addAll(kotlin.sourceSets["integrationTest"].kotlin.srcDirs)
        testSourceDirs.addAll(kotlin.sourceSets["integrationTest"].resources.srcDirs)
    }
}

Testing started at 12:08 ...
12:08:49: Executing task 'testIntegration'...

> Task :project:compileKotlin UP-TO-DATE
> Task :project:compileJava NO-SOURCE
> Task :project:processResources UP-TO-DATE
> Task :project:classes UP-TO-DATE
> Task :project:compileTestKotlin UP-TO-DATE
> Task :project:compileTestJava NO-SOURCE
> Task :project:processTestResources UP-TO-DATE
> Task :project:testClasses UP-TO-DATE
> Task :project:testIntegration
BUILD SUCCESSFUL in 2s
5 actionable tasks: 1 executed, 4 up-to-date
12:08:51: Task execution finished 'testIntegration'.

另外，IntelliJ不将testIntegration目录识别为Kotlin包。

Answer 1

多亏了Kotlin Slack频道的一些帮助，我终于能弄明白了。首先，我必须升级到Gradle版本4.10.2。

欲了解更多信息，请参阅Gradle的以下两页：

• https://docs.gradle.org/release-nightly/userguide/organizing_gradle_projects.html#sec:separate_test_type_source_files
• https://docs.gradle.org/release-nightly/userguide/organizing_gradle_projects.html#sec:separate_test_type_source_files

sourceSets {
    create("integrationTest") {
            kotlin.srcDir("src/integrationTest/kotlin")
            resources.srcDir("src/integrationTest/resources")
            compileClasspath += sourceSets["main"].output + configurations["testRuntimeClasspath"]
            runtimeClasspath += output + compileClasspath + sourceSets["test"].runtimeClasspath
    }
}

这对Java来说很好，但由于我正在使用Kotlin，所以我必须添加一个额外的withConvention包装器

sourceSets {
    create("integrationTest") {
        withConvention(KotlinSourceSet::class) {
            kotlin.srcDir("src/integrationTest/kotlin")
            resources.srcDir("src/integrationTest/resources")
            compileClasspath += sourceSets["main"].output + configurations["testRuntimeClasspath"]
            runtimeClasspath += output + compileClasspath + sourceSets["test"].runtimeClasspath
        }
    }
}

在文档中，他们只放了runtimeClasspath+=output+compileClasspath，但我添加了sourcesets[“test”].runtimeClasspath，这样我就可以直接使用测试依赖项，而不是为IntegrationTest任务声明新的依赖项。

一旦创建了源集，就需要声明一个新任务

task<Test>("integrationTest") {
    description = "Runs the integration tests"
    group = "verification"
    testClassesDirs = sourceSets["integrationTest"].output.classesDirs
    classpath = sourceSets["integrationTest"].runtimeClasspath
    mustRunAfter(tasks["test"])
}

在此之后，测试仍然没有运行，但这是因为我使用的是JUnit4。因此，我只需添加useJUnitPlatform()，使其成为最终代码

task<Test>("integrationTest") {
    description = "Runs the integration tests"
    group = "verification"
    testClassesDirs = sourceSets["integrationTest"].output.classesDirs
    classpath = sourceSets["integrationTest"].runtimeClasspath
    mustRunAfter(tasks["test"])
    useJUnitPlatform()
}