Incompatibility with JUnit5 5.10.0-M1

[davidburstrom]

Using pitest-junit5-plugin version 1.1.2 and JUnit 5 version 5.10.0-M1, test discovery fails with the attached stacktrace. It works if JUnit 5 version 5.9.2 is used. Seems like a shading issue.

org.junit.platform.commons.JUnitException: TestEngine with ID 'junit-jupiter' failed to discover tests
        at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:160)
        at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverSafely(EngineDiscoveryOrchestrator.java:132)
        at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:107)
        at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discover(EngineDiscoveryOrchestrator.java:78)
        at org.junit.platform.launcher.core.DefaultLauncher.discover(DefaultLauncher.java:110)
        at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
        at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
        at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53)
        at org.pitest.junit5.JUnit5TestUnitFinder.findTestUnits(JUnit5TestUnitFinder.java:83)
        at org.pitest.mutationtest.config.PrioritisingTestUnitFinder.findTestUnits(PrioritisingTestUnitFinder.java:20)
        at org.pitest.testapi.execute.FindTestUnits.findTestUnits(FindTestUnits.java:64)
        at org.pitest.testapi.execute.FindTestUnits.getTestUnits(FindTestUnits.java:47)
        at org.pitest.testapi.execute.FindTestUnits.findTestUnitsForAllSuppliedClasses(FindTestUnits.java:36)
        at org.pitest.coverage.execute.CoverageMinion.discoverTests(CoverageMinion.java:177)
        at org.pitest.coverage.execute.CoverageMinion.getTestsFromParent(CoverageMinion.java:163)
        at org.pitest.coverage.execute.CoverageMinion.main(CoverageMinion.java:87)
Caused by: org.junit.platform.commons.JUnitException: ClassSelector [className = 'io.github.davidburstrom.gradle.versioncompatibility.VersionCompatibilityPluginTest'] resolution failed
        at org.junit.platform.launcher.listeners.discovery.AbortOnFailureLauncherDiscoveryListener.selectorProcessed(AbortOnFailureLauncherDiscoveryListener.java:39)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:103)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:83)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:113)
        at org.junit.jupiter.engine.discovery.DiscoverySelectorResolver.resolveSelectors(DiscoverySelectorResolver.java:46)
        at org.junit.jupiter.engine.JupiterTestEngine.discover(JupiterTestEngine.java:69)
        at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.discoverEngineRoot(EngineDiscoveryOrchestrator.java:152)
        ... 15 more
Caused by: java.lang.NoSuchMethodError: 'java.util.stream.Stream org.junit.platform.commons.support.ReflectionSupport.streamNestedClasses(java.lang.Class, java.util.function.Predicate)'
        at org.junit.jupiter.engine.discovery.ClassSelectorResolver.lambda$toResolution$12(ClassSelectorResolver.java:138)
        at org.junit.platform.engine.support.discovery.SelectorResolver$Match.expand(SelectorResolver.java:667)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$enqueueAdditionalSelectors$1(EngineDiscoveryRequestResolution.java:110)
        at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
        at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
        at java.base/java.util.Collections$2.tryAdvance(Collections.java:4747)
        at java.base/java.util.Collections$2.forEachRemaining(Collections.java:4755)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
        at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
        at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
        at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.enqueueAdditionalSelectors(EngineDiscoveryRequestResolution.java:109)
        at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:95)
        ... 20 more

[nagkumar]

hcoles/pitest#1210

[hcoles]

This isn't quite as straightforward as "a shading issue". There's a discussion of the problem here

hcoles/pitest#1209

And a fix for maven users here

hcoles/pitest#1212

I'll release this and a new version of the junit-5-plugin shortly. Gradle users will need to manually add platform-launcher to their test classpath until a fix similar to the maven soloution can be added to the gradle plugin.

[hcoles]

This is fixed by the combination of 1.2.0 of the junit5 plugin and pitest 1.14.0.

If you are using gradle, you will need to also ensure that junit-platform-launcher v 1.10.0-M1 is included on the test runtime classpath.

[nagkumar]

wow.. tested it works now.. with all the changes..

curious in 5.9.2 this dependency was not needed now with 10.x this is needed

testRuntimeOnly("org.junit.platform:junit-platform-launcher")

what changes in 10.x made such explicit need as my junit test cases work even without this dependency even on 10.x but not pitest.