在使用micronaut和kotlin的gradle项目中，如何分离单元测试和集成测试？

Question

我正在尝试使用Gradle的Kotlin DSL for Gradle构建文件，在Gradle项目中使用Micronaut和Kotlin将单元测试和集成测试分离到单独的Gradle任务中。

我遵循了Gradle文档中的常见步骤，但似乎缺少了Micronaut的一些特定设置步骤，特别是与kapt相关的步骤。

下面是我根据标准的Micronaut项目模板改编的build.gradle.kts：

plugins {
    id("org.jetbrains.kotlin.jvm") version "1.5.21"
    id("org.jetbrains.kotlin.kapt") version "1.5.21"
    id("com.github.johnrengelman.shadow") version "7.1.0"
    id("io.micronaut.application") version "2.0.8"
    id("org.jetbrains.kotlin.plugin.allopen") version "1.5.21"
}

version = "0.1"
group = "com.example"

val kotlinVersion=project.properties.get("kotlinVersion")
repositories {
    mavenCentral()
}

micronaut {
    runtime("netty")
    testRuntime("junit5")
    processing {
        incremental(true)
        annotations("com.example.*")
    }
}

sourceSets {
    create("intTest") {
        compileClasspath += sourceSets.main.get().output
        runtimeClasspath += sourceSets.main.get().output
    }
}

val intTestImplementation: Configuration by configurations.getting {
    extendsFrom(configurations.testImplementation.get())
}

configurations["intTestRuntimeOnly"].extendsFrom(configurations.runtimeOnly.get())


dependencies {
    kapt("io.micronaut:micronaut-http-validation")
    kapt("io.micronaut.data:micronaut-data-processor")
    kapt("io.micronaut.openapi:micronaut-openapi")
    implementation("io.micronaut:micronaut-http-client")
    implementation("io.micronaut:micronaut-runtime")
    implementation("io.micronaut.data:micronaut-data-jdbc")
    implementation("io.micronaut.flyway:micronaut-flyway")
    implementation("io.micronaut.gcp:micronaut-gcp-pubsub")
    implementation("io.micronaut.kotlin:micronaut-kotlin-extension-functions")
    implementation("io.micronaut.kotlin:micronaut-kotlin-runtime")
    implementation("io.micronaut.sql:micronaut-jdbc-hikari")
    implementation("io.swagger.core.v3:swagger-annotations")
    implementation("javax.annotation:javax.annotation-api")
    implementation("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlinVersion}")
    runtimeOnly("ch.qos.logback:logback-classic")
    runtimeOnly("org.postgresql:postgresql")

    //Testing dependencies
    testImplementation("org.mockito:mockito-core:3.12.4")
    testImplementation("org.mockito.kotlin:mockito-kotlin:3.2.0")
    testImplementation("io.micronaut.test:micronaut-test-junit5")

    //Integration testing dependencies
    intTestImplementation("org.testcontainers:junit-jupiter")
    intTestImplementation("org.testcontainers:postgresql")
    intTestImplementation("org.testcontainers:testcontainers")
    intTestImplementation("io.micronaut.test:micronaut-test-junit5")
 
    implementation("io.micronaut:micronaut-validation")

    runtimeOnly("com.fasterxml.jackson.module:jackson-module-kotlin")

}


application {
    mainClass.set("com.example.ApplicationKt")
}
java {
    sourceCompatibility = JavaVersion.toVersion("11")
}


val integrationTest = task<Test>("intTest") {
    description = "Runs integration tests."
    group = "verification"

    testClassesDirs = sourceSets["intTest"].output.classesDirs
    classpath = sourceSets["intTest"].runtimeClasspath
    shouldRunAfter("test")
}

tasks.check { dependsOn(integrationTest) }

tasks {
    compileKotlin {
        kotlinOptions {
            jvmTarget = "11"
        }
    }
    compileTestKotlin {
        kotlinOptions {
            jvmTarget = "11"
        }
    }
}

如果我现在运行我的集成测试，它看起来像这样：

@MicronautTest
internal class ExampleIntegrationTest {
    @Test
    fun test() {}
}

我得到了错误：

org.junit.jupiter.engine.execution.ConditionEvaluationException: Failed to evaluate condition [io.micronaut.test.extensions.junit5.MicronautJunit5Extension]: @MicronautTest used on test but no bean definition for the test present. This error indicates a misconfigured build or IDE. Please add the 'micronaut-inject-java' annotation processor to your test processor path (for Java this is the testAnnotationProcessor scope, for Kotlin kaptTest and for Groovy testCompile). See the documentation for reference: https://micronaut-projects.github.io/micronaut-test/latest/guide/
    at app//org.junit.jupiter.engine.execution.ConditionEvaluator.evaluationException(ConditionEvaluator.java:81)
    at app//org.junit.jupiter.engine.execution.ConditionEvaluator.evaluate(ConditionEvaluator.java:69)
    at app//org.junit.jupiter.engine.execution.ConditionEvaluator.lambda$evaluate$0(ConditionEvaluator.java:55)
    at java.base@15.0.2/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
...

这导致我相信在我的conifg中缺少了一些与Micronaut或Kapt相关的东西。任何帮助都将不胜感激。

Answer 1

我遇到的问题是因为kapt没有配置为使用新添加的集成测试源集。Kotlin对micronaut的注释处理是在microunaut插件配置的processing块中配置的。我需要做的是在那里添加额外的源集：

micronaut {
    runtime("netty")
    testRuntime("junit5")
    processing {
        incremental(true)
        annotations("com.example.*")
        additionalSourceSets.add(sourceSets.getByName("intTest")) //add additional integration testing sources set
    }
}

要做到这一点，sourceSet部分需要在microunaut插件配置部分之前出现。

最终结果，其中一切都像预期的那样工作，如下所示：

plugins {
    id("org.jetbrains.kotlin.jvm") version "1.5.21"
    id("org.jetbrains.kotlin.kapt") version "1.5.21"
    id("com.github.johnrengelman.shadow") version "7.1.0"
    id("io.micronaut.application") version "2.0.8"
    id("org.jetbrains.kotlin.plugin.allopen") version "1.5.21"
}

version = "0.1"
group = "com.example"

val kotlinVersion=project.properties.get("kotlinVersion")
repositories {
    mavenCentral()
}

// Include integration test source sets and configurations
sourceSets {
    create("intTest") {
        compileClasspath += sourceSets.main.get().output + sourceSets.test.get().output
        runtimeClasspath += sourceSets.main.get().output + sourceSets.test.get().output
    }
}
val intTestImplementation: Configuration by configurations.getting {
    extendsFrom(configurations.testImplementation.get())
}
val intTestRuntimeOnly: Configuration by configurations.getting {
    extendsFrom(configurations.testRuntimeOnly.get())
}

// Micronaut plugin to set runtime, test platform, and annotation processing
micronaut {
    runtime("netty")
    testRuntime("junit5")
    processing {
        incremental(true)
        annotations("com.example.*")
        additionalSourceSets.add(sourceSets.getByName("intTest"))
    }
}

dependencies {
    kapt("io.micronaut:micronaut-http-validation")
    kapt("io.micronaut.data:micronaut-data-processor")
    kapt("io.micronaut.openapi:micronaut-openapi")
    implementation("io.micronaut:micronaut-http-client")
    implementation("io.micronaut:micronaut-runtime")
    implementation("io.micronaut.data:micronaut-data-jdbc")
    implementation("io.micronaut.flyway:micronaut-flyway")
    implementation("io.micronaut.gcp:micronaut-gcp-pubsub")
    implementation("io.micronaut.kotlin:micronaut-kotlin-extension-functions")
    implementation("io.micronaut.kotlin:micronaut-kotlin-runtime")
    implementation("io.micronaut.sql:micronaut-jdbc-hikari")
    implementation("io.swagger.core.v3:swagger-annotations")
    implementation("javax.annotation:javax.annotation-api")
    implementation("org.jetbrains.kotlin:kotlin-reflect:${kotlinVersion}")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlinVersion}")
    runtimeOnly("ch.qos.logback:logback-classic")
    runtimeOnly("org.postgresql:postgresql")

    //Testing dependencies
    testImplementation("org.mockito:mockito-core:3.12.4")
    testImplementation("org.mockito.kotlin:mockito-kotlin:3.2.0")
    testImplementation("io.micronaut.test:micronaut-test-junit5")

    //Integration testing dependencies
    intTestImplementation("org.testcontainers:junit-jupiter")
    intTestImplementation("org.testcontainers:postgresql")
    intTestImplementation("org.testcontainers:testcontainers")

    implementation("io.micronaut:micronaut-validation")

    runtimeOnly("com.fasterxml.jackson.module:jackson-module-kotlin")

}


application {
    mainClass.set("com.example.ApplicationKt")
}

java {
    sourceCompatibility = JavaVersion.toVersion("11")
}


// Integration test gradle task
val integrationTest = task<Test>("intTest") {
    description = "Runs integration tests."
    group = "verification"

    testClassesDirs = sourceSets["intTest"].output.classesDirs
    classpath = sourceSets["intTest"].runtimeClasspath
    shouldRunAfter("test")
}

tasks.check { dependsOn(integrationTest) }

tasks {
    compileKotlin {
        kotlinOptions {
            jvmTarget = "11"
        }
    }
    compileTestKotlin {
        kotlinOptions {
            jvmTarget = "11"
        }
    }
}