我无法在 Eclipse 2023-09 (4.29.0) 中运行 JUnit 5.9.x 测试

Question

嗨，我从 start.spring.io 开始，如下所示

我试图检查默认情况下测试是否正常。

但这还没有开始。我在控制台中收到此错误，而不是测试结果。

java.lang.NoSuchMethodError: 'java.util.Set org.junit.platform.engine.TestDescriptor.getAncestors()'
    at org.junit.platform.launcher.core.StackTracePruningEngineExecutionListener.getTestClassNames(StackTracePruningEngineExecutionListener.java:50)
    at org.junit.platform.launcher.core.StackTracePruningEngineExecutionListener.executionFinished(StackTracePruningEngineExecutionListener.java:39)
    at org.junit.platform.launcher.core.DelegatingEngineExecutionListener.executionFinished(DelegatingEngineExecutionListener.java:46)
    at org.junit.platform.launcher.core.OutcomeDelayingEngineExecutionListener.reportEngineFailure(OutcomeDelayingEngineExecutionListener.java:83)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:203)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:169)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:93)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:58)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:141)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:57)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:103)
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:94)
    at org.junit.platform.launcher.core.DelegatingLauncher.execute(DelegatingLauncher.java:52)
    at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:70)
    at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:40)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:529)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:756)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:452)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

我用谷歌搜索。人们说这似乎与 jupiter-api 版本有关。所以我添加了一些像这样的依赖项。但没有成功。

// build.gradle
plugins {
    id 'java'
    id 'org.springframework.boot' version '3.1.3'
    id 'io.spring.dependency-management' version '1.1.3'
}

group = 'hello'
version = '0.0.1-SNAPSHOT'

java {
    sourceCompatibility = '17'
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    developmentOnly 'org.springframework.boot:spring-boot-devtools'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    
    
    testImplementation('org.junit.jupiter:junit-jupiter-api:5.9.3') /// added version
    testRuntimeOnly('org.junit.jupiter:junit-jupiter-engine:5.9.3') /// added version
}

tasks.named('test') {
    useJUnitPlatform()
}

我也尝试过不同的方式。我在 Eclipse IDE 上添加了 Java 构建路径，但它也不起作用。
（右键单击我的项目>属性> Java构建路径
>模块路径（也已经尝试过类路径。）>添加库> JUnit

我没有看到关于 JUnit 错误的相同案例'java.util.Set org.junit.platform.engine.TestDescriptor.getAncestors()'。
所以我现在很困惑。请帮忙。

Answer 1

这似乎是 Eclipse Buildship 的问题，JUnit 低于 5.10.0 和 Eclipse 2023-09 (4.29)，我在这里报告：

Eclipse Buildship 问题 #1265：在 Eclipse 2023-09 (4.29) 中运行 JUnit 5.9.3 测试时出现 NoSuchMethodError

解决方法：

• 在 中build.gradle，添加依赖项testImplementation 'org.junit.platform:junit-platform-launcher:1.9.3'或
• 升级到 JUnit 5.10.0：testImplementation 'org.junit.jupiter:junit-jupiter:5.10.0'
• 请参阅Daniele Repici 的答案，了解无需更改的解决方法build.gradle

原因：

看来Buildship并没有选择相应的版本junit-platform-launcher（就像m2e似乎所做的那样；至少这个问题不能用Maven重现），而是使用junit-platform-launcherEclipse附带的版本。并且在Eclipse 4.29中junit-platform-launcher已经升级到1.10.0。但是JUnit 5.9.3中引入了哪些org.junit.platform:junit-platform-launcher:1.10.0调用，而 JUnit 5.9.3 中缺少哪些调用。org.junit.platform.engine.TestDescriptor.html::getAncestorsorg.junit.platform:junit-platform-engine:1.10.0org.junit.platform:junit-platform-engine:1.9.3

Answer 2

我认为这只是关于 Eclipse 2023-09 和 Junit 兼容性。@howlger 询问了最少的例子来确认，所以这就是它。我已经使用标准源布局创建了新的 gradle 项目（包装器，版本 8.1.1）。

构建.gradle

apply plugin: 'java'
java {
    sourceCompatibility = JavaVersion.VERSION_11
    targetCompatibility = JavaVersion.VERSION_11
}
repositories {
    mavenCentral()
}
compileJava {
    options.encoding = "UTF-8"
}
compileTestJava {
    options.encoding = "UTF-8"
}

dependencies {    
    testImplementation("org.junit.jupiter:junit-jupiter:5.9.3")
    testImplementation("org.junit.vintage:junit-vintage-engine:5.9.3")
}

设置.gradle

rootProject.name = 'JunitBug'

存根测试.java

package com.junitbug;

import static org.junit.jupiter.api.Assertions.*;

import org.junit.jupiter.api.Test;

    class StubTest {
        @Test
        void test() {
            boolean b = true;
            assertTrue(b);
        }
    }

在 Eclipse 中测试运行后，我遇到了同样的异常：

java.lang.NoSuchMethodError: 'java.util.Set org.junit.platform.engine.TestDescriptor.getAncestors()'
    at org.junit.platform.launcher.core.StackTracePruningEngineExecutionListener.getTestClassNames(StackTracePruningEngineExecutionListener.java:50)
    at org.junit.platform.launcher.core.StackTracePruningEngineExecutionListener.executionFinished(StackTracePruningEngineExecutionListener.java:39)
    at org.junit.platform.launcher.core.DelegatingEngineExecutionListener.executionFinished(DelegatingEngineExecutionListener.java:46)
    at org.junit.platform.launcher.core.OutcomeDelayingEngineExecutionListener.reportEngineFailure(OutcomeDelayingEngineExecutionListener.java:83)
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:203)
    ....

在 build.gradle 中将junit 版本更新到5.10.0修复了该问题。请注意，“gradlew test”在这两种情况下都可以正常工作。