java - org.gradle.api.internal.tasks.testing.TestSuiteExecutionException : Could not complete execution for Gradle Test Executor 5

Question

Java 8

我想在我的 java 项目中使用 JUnit 4。

在我的 build.gradle 中

dependencies {
    implementation 'org.apache.commons:commons-lang3'
    implementation 'org.apache.logging.log4j:log4j-api'
    implementation 'org.apache.logging.log4j:log4j-core'
    implementation 'org.apache.logging.log4j:log4j-slf4j-impl'
    implementation "org.jetbrains.kotlin:kotlin-stdlib"
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.5.2'

   testImplementation('org.assertj:assertj-core:3.21.0')
   testImplementation('org.mockito:mockito-core:4.0.0')

   testImplementation('junit:junit:4.13.2')

}

这是我的单元测试:

import org.junit.BeforeClass;
import org.junit.Test;

import java.util.*;

import static org.assertj.core.api.Assertions.assertThat;

public class VsatVlansNSTest {


    @BeforeClass
    public static void setupAll() {
     //
    }

    @Test
    public void find_NS_2_4_higher_matcher() {
     // some test here
    }
}

但是我得到错误:

g.gradle.api.internal.tasks.testing.TestSuiteExecutionException: Could not complete execution for Gradle Test Executor 5.
    at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:63)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
    at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
    at com.sun.proxy.$Proxy2.stop(Unknown Source)
    at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:133)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
    at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
    at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
    at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
    at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:414)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
    at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
    at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.junit.platform.commons.PreconditionViolationException: Cannot create Launcher without at least one TestEngine; consider adding an engine implementation JAR to the classpath
    at org.junit.platform.commons.util.Preconditions.condition(Preconditions.java:296)
    at org.junit.platform.launcher.core.DefaultLauncher.<init>(DefaultLauncher.java:48)
    at org.junit.platform.launcher.core.LauncherFactory.create(LauncherFactory.java:105)
    at org.junit.platform.launcher.core.LauncherFactory.create(LauncherFactory.java:75)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:97)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:79)
    at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:75)
    at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
    ... 25 more

Answer 1

很可能，您没有添加名为 junit engine 的依赖项，像这样添加:

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.1'
    testImplementation 'org.junit.jupiter:junit-jupiter-engine:5.7.1'
}