如何在多模块项目中使用 JUnit5 和 SpringBoot2 通过 gradle

Question

我创建了一个空的 gradle 项目，内部包含单个模块（子项目），也作为 gradle 项目，但使用 Spring boot 2。主要（无标题1）build.gradle：group 'com.example'version '1.0-SNAPSHOT'allprojects {    repositories {        mavenCentral()    }}设置.gradle：rootProject.name = 'main-project'include 'new-one'子项目（新项目）：构建 gradle：plugins {    id("java")    id("org.springframework.boot") version "2.1.8.RELEASE"    id("io.spring.dependency-management") version "1.0.8.RELEASE"}group = 'com.example'version '1.0-SNAPSHOT'sourceCompatibility = 1.12dependencies {    implementation 'org.springframework.boot:spring-boot-dependencies:2.0.5.RELEASE'    implementation 'org.springframework.boot:spring-boot-starter-web'    testImplementation 'org.springframework.boot:spring-boot-starter-test'    def junit = '5.5.2'    testImplementation ("org.junit.jupiter:junit-jupiter-api:${junit}")    testImplementation ("org.junit.jupiter:junit-jupiter-params:${junit}")    testImplementation ("org.assertj:assertj-core:3.11.1")    testRuntime("org.junit.jupiter:junit-jupiter-engine:${junit}")}test {    useJUnitPlatform()}使用测试运行器运行测试：IntelliJ idea 编译并通过测试，但是当我使用 gradle 时，如果我运行单个测试，它会返回：Testing started at 2:48 PM ...> Task :new-one:cleanTest> Task :new-one:compileJava UP-TO-DATE> Task :new-one:processResources NO-SOURCE> Task :new-one:classes UP-TO-DATE> Task :new-one:compileTestJava> Task :new-one:processTestResources NO-SOURCE> Task :new-one:testClasses> Task :new-one:test FAILEDSep 30, 2019 2:48:53 PM org.junit.platform.launcher.core.DefaultLauncher handleThrowableWARNING: TestEngine with ID 'junit-jupiter' failed to discover testsjava.lang.NoClassDefFoundError: org/junit/platform/engine/support/discovery/Sel

Answer 1

如https://github.com/junit-team/junit5-samples/blob/r5.5.2/junit5-jupiter-starter-gradle/build.gradle所示，我建议将 Jupiter 依赖项定义为：

testImplementation('org.junit.jupiter:junit-jupiter:5.5.2')

希望能解决这个问题。