无法在 IntelliJ 2018.2.2 w/Gradle 4.9 中运行 JUnit 5 测试

Question

我正在尝试从 Intelli 2018.2.2 社区版运行单个 JUnit 5 单元测试。该项目正在使用 Gradle v4.9。

无论出于何种原因，当尝试单独运行测试方法或作为测试类运行时，输出结果相同：

Aug 29, 2018 3:37:47 PM 
org.junit.platform.launcher.core.DefaultLauncher handleThrowable
WARNING: TestEngine with ID 'junit-jupiter' failed to discover tests
org.junit.platform.commons.util.PreconditionViolationException: Could not load class with name: MinHeapTest
at org.junit.platform.engine.discovery.ClassSelector.lambda$getJavaClass$0(ClassSelector.java:73)
at java.util.Optional.orElseThrow(Optional.java:290)
at org.junit.platform.engine.discovery.ClassSelector.getJavaClass(ClassSelector.java:72)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.lambda$resolve$3(DiscoverySelectorResolver.java:69)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolve(DiscoverySelectorResolver.java:68)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:50)
at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:61)
at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:130)
at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:117)
at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:82)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:52)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

Aug 29, 2018 3:37:47 PM org.junit.platform.launcher.core.DefaultLauncher handleThrowable
WARNING: TestEngine with ID 'junit-jupiter' failed to discover tests
org.junit.platform.commons.util.PreconditionViolationException: Could not load class with name: MinHeapTest
at org.junit.platform.engine.discovery.ClassSelector.lambda$getJavaClass$0(ClassSelector.java:73)
at java.util.Optional.orElseThrow(Optional.java:290)
at org.junit.platform.engine.discovery.ClassSelector.getJavaClass(ClassSelector.java:72)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.lambda$resolve$3(DiscoverySelectorResolver.java:69)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolve(DiscoverySelectorResolver.java:68)
at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:50)
at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:61)
at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:130)
at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:117)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:90)
at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)


Process finished with exit code 0
Empty test suite.

在命令行上运行gradle test 运行良好。

Gradle 配置是： 应用插件：'java'

repositories {
    jcenter()
}

dependencies {
    testCompile("org.junit.jupiter:junit-jupiter-api:5.2.0")
    testRuntime("org.junit.jupiter:junit-jupiter-engine:5.2.0")
}

test {
    useJUnitPlatform()
}

我在 IntelliJ 2016 上读到过类似的问题，但不是最近的版本。

还有其他人遇到过这个问题吗？似乎 InteliJ 正在使用其他方式来启动测试而不是 Gradle，但不清楚是什么。

为了更好地衡量，我检查了YouTrack 是否有类似的堆栈跟踪但无济于事。

感谢指点！

Answer 1

您能否取悦您在 IntelliJ 中的设置？您必须打开“首选项”或“设置”对话窗口。在那里你可以搜索 Gradle，然后寻找 Build, Execution, Deployment |构建工具 |摇篮 | Runner 并选择 Gradle Test Runner。

默认是平台测试运行器