TestKit for plugin that depends on another module in a multi-module build

I have the following layout:

hibernate-orm/
    hibernate-core/
        ...
    tooling/
        hibernate-gradle-plugin/
            ...
    build.gradle
    settings.gradle
    ...

hibernate-gradle-plugin defines a plugin which has a dependency on hibernate-core defined as:

	implementation project( ':hibernate-core' )

In my test I have this:

		final GradleRunner gradleRunner = GradleRunner.create()
				.withProjectDir( projectDir.toFile() )
				.withPluginClasspath()
				.withDebug( true )
				.withArguments( "clean", "compileJava", "--stacktrace", "--no-build-cache" )
				.forwardOutput();

First, the task dependency between running tests and generating the plugin-under-test-metadata.properties file does not seem to work properly. Initially I get errors about that file not existing; not sure if that is related to the next issue. If I manually run the task to generate that file, then the tests can see the plugin.

At this point I then get errors because Gradle, as part of the tests, is not able to resolve the dependency on hibernate-core which is tries from remote repositories for some reason. This causes problems trying to run tests, and actually kills attempts to release - the version being released is not yet available from any remote repos (obviously, that’s what the release does).

When the plugin is deployed I completely understand it needing to be able to resolve all of its dependencies from remote repo. However, under test not only do I not understand that it flat out seems wrong.

Am I missing something? Or is this just a limitation of TestKit?

I’m running testkit against a plugin that has dependencies on local projects and all is working as expected.
Are you using the java-gradle-plugin?
Are you running the tests as part of the default test sourceset, or have you created a custom sourceset for these tests?

In my case I am using java-gradle-plugin and I created an additional sourceset for functional tests. I then configured the gradlePlugin extension to let it know about my new sourceset.

gradlePlugin {
    testSourceSets project.sourceSets.functionalTest
}

Yes.

Yes.

I have a very messy working copy at the moment, but will rerun these once I get that cleaned up. Maybe the exact error will help.

Sorry, took me a few days to finish up that other work. I was able to get back to playing around with this. Here are the details of the failure:

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not find org.hibernate.orm:hibernate-core:6.1.0-SNAPSHOT.
     Searched in the following locations:
       - https://repo.maven.apache.org/maven2/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/maven-metadata.xml
       - https://repo.maven.apache.org/maven2/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/hibernate-core-6.1.0-SNAPSHOT.pom
       - https://repository.jboss.org/nexus/content/repositories/snapshots/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/maven-metadata.xml
       - https://repository.jboss.org/nexus/content/repositories/snapshots/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/hibernate-core-6.1.0-SNAPSHOT.pom
     Required by:
         project :

* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':compileJava'.
	at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:38)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
	at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:74)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:402)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:389)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:382)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:368)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.lambda$run$0(DefaultPlanExecutor.java:127)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:191)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:182)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:124)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:61)
Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':compileClasspath'.
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.rethrowFailure(DefaultConfiguration.java:1423)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$3600(DefaultConfiguration.java:152)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$DefaultResolutionHost.rethrowFailure(DefaultConfiguration.java:2035)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.visitContents(DefaultConfiguration.java:1395)
	at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.visitContents(DefaultConfiguration.java:498)
	at org.gradle.api.internal.file.AbstractFileCollection.visitStructure(AbstractFileCollection.java:330)
	at org.gradle.api.internal.file.CompositeFileCollection.lambda$visitContents$0(CompositeFileCollection.java:119)
	at org.gradle.api.internal.file.collections.UnpackingVisitor.add(UnpackingVisitor.java:64)
	at org.gradle.api.internal.file.collections.UnpackingVisitor.add(UnpackingVisitor.java:89)
	at org.gradle.api.internal.file.DefaultFileCollectionFactory$ResolvingFileCollection.visitChildren(DefaultFileCollectionFactory.java:333)
	at org.gradle.api.internal.file.CompositeFileCollection.visitContents(CompositeFileCollection.java:119)
	at org.gradle.api.internal.file.AbstractFileCollection.visitStructure(AbstractFileCollection.java:330)
	at org.gradle.api.internal.file.CompositeFileCollection.lambda$visitContents$0(CompositeFileCollection.java:119)
	at org.gradle.api.internal.tasks.PropertyFileCollection.visitChildren(PropertyFileCollection.java:48)
	at org.gradle.api.internal.file.CompositeFileCollection.visitContents(CompositeFileCollection.java:119)
	at org.gradle.api.internal.file.AbstractFileCollection.visitStructure(AbstractFileCollection.java:330)
	at org.gradle.internal.fingerprint.impl.DefaultFileCollectionSnapshotter.snapshot(DefaultFileCollectionSnapshotter.java:51)
	at org.gradle.internal.fingerprint.impl.AbstractFileCollectionFingerprinter.fingerprint(AbstractFileCollectionFingerprinter.java:47)
	at org.gradle.internal.execution.fingerprint.impl.DefaultInputFingerprinter$InputCollectingVisitor.visitInputFileProperty(DefaultInputFingerprinter.java:123)
	at org.gradle.api.internal.tasks.execution.TaskExecution.visitRegularInputs(TaskExecution.java:325)
	at org.gradle.internal.execution.fingerprint.impl.DefaultInputFingerprinter.fingerprintInputProperties(DefaultInputFingerprinter.java:54)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.captureExecutionStateWithOutputs(CaptureStateBeforeExecutionStep.java:193)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.lambda$captureExecutionState$1(CaptureStateBeforeExecutionStep.java:141)
	at org.gradle.internal.execution.steps.BuildOperationStep$1.call(BuildOperationStep.java:37)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
	at org.gradle.internal.execution.steps.BuildOperationStep.operation(BuildOperationStep.java:34)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.captureExecutionState(CaptureStateBeforeExecutionStep.java:130)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.lambda$execute$0(CaptureStateBeforeExecutionStep.java:75)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:75)
	at org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:50)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:93)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:93)
	at org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
	at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
	at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:43)
	at org.gradle.internal.execution.steps.LoadPreviousExecutionStateStep.execute(LoadPreviousExecutionStateStep.java:31)
	at org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:40)
	at org.gradle.api.internal.tasks.execution.TaskExecution$3.withWorkspace(TaskExecution.java:284)
	at org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:40)
	at org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:30)
	at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:37)
	at org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:27)
	at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:44)
	at org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:33)
	at org.gradle.internal.execution.impl.DefaultExecutionEngine$1.execute(DefaultExecutionEngine.java:76)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:142)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:131)
	at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:77)
	at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
	at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:51)
	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
	at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:204)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:199)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:66)
	at org.gradle.internal.operations.DefaultBuildOperationRunner$2.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:59)
	at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:53)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:73)
	at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
	at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:74)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:402)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:389)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:382)
	at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:368)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.lambda$run$0(DefaultPlanExecutor.java:127)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:191)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:182)
	at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:124)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
	at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
	at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:61)
Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find org.hibernate.orm:hibernate-core:6.1.0-SNAPSHOT.
Searched in the following locations:
  - https://repo.maven.apache.org/maven2/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/maven-metadata.xml
  - https://repo.maven.apache.org/maven2/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/hibernate-core-6.1.0-SNAPSHOT.pom
  - https://repository.jboss.org/nexus/content/repositories/snapshots/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/maven-metadata.xml
  - https://repository.jboss.org/nexus/content/repositories/snapshots/org/hibernate/orm/hibernate-core/6.1.0-SNAPSHOT/hibernate-core-6.1.0-SNAPSHOT.pom
Required by:
    project :

I found the very last bit interesting:

Required by:
    project :

Specifically that there is no project name/path. But perhaps that is expected from TestKit?

Either way, I have no idea what leads to this. It works for you, so I clearly have a problem in my build.

The test project is very simple and defines no dependency on hibernate-core[1]. The only reference to hibernate-core should come from the plugin itself.

In your set up you do not have to publish the sub-project that the plugin sub-project depends on before running the TestKit tests for the plugin sub-project? Not even to mavenLocal e.g.?

[1] hibernate-orm/build.gradle at 5403e95958011986d78dd1fad71319effc558bf0 · hibernate/hibernate-orm · GitHub

P.S. Above I said that the tests are in src/test while the linked project still shows in src/testKit. Moving that to src/test is a local change I have not pushed yet. Just for clarity

The plugin-under-test-metadata.properties looks fine -

implementation-classpath=…:/home/sebersole/projects/hibernate-orm/6.0/hibernate-orm/hibernate-core/target/libs/hibernate-core-6.1.0-SNAPSHOT.jar…

The plugin’s dependency on hibernate-core is working correctly.

However, the plugin injects a dependency on hibernate-core into the project via the hibernateOrm configuration. It’s this dependency that is failing to resolve. TestKit and the automatic classpath management takes care of the buildscript classpath, but is not involved in any dependency resolution that the project under test may do.

You’ll need to inject something into the test project that allows it to resolve the locally built hibernate-core and its dependencies. One idea I have, create a Copy task that copies the required deps into a directory, then set a system property on the test task that specifies that new directory. The test can then read the system property and inject the directory path into the build script, which uses it as a flatDir repository. Something like this (untested):

configurations {
    core
}
dependencies {
    core project(path: ':hibernate-core', configuration: 'runtimeElements')  // replace with appropriate java plugin attributes on the the "core" configuration
}
tasks.register('abc', Copy) {
    ext.libsDir = layout.buildDirectory.dir('abc')
    into( libsDir )
    from( configurations.core )
}
tasks.named('test') {
    inputs.files(tasks.abc)
    systemProperty('the.libs.dir', tasks.abc.libsDir.get().asFile.absolutePath)
}

Something along those lines should work.

For me, a far easier solution in my specific case is to just set that to a released version. The actual version used on the “test project” is actually irrelevant.

But you are correct that the plugin is adding the dependency into the project. I forgot about that. Thanks!

1 Like

Sometimes it just takes that extra set of eyes :slight_smile: