Writing compiler test

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I'm building a plugin supporting an in-house language. We've covered most of the functionality with tests, but I am currently struggling with testing the custom compiler using JPS. 

I am trying to set up the following simple test:

  • create a project, add 1 or more modules to it
  • populate modules with files
  • run a file/module/project compilation using CompilerTester
  • perform assertions on returned compiler messages 

 

As some of the tests will be multi-module, the tests must be heavy as per https://www.jetbrains.org/intellij/sdk/docs/basics/testing_plugins/light_and_heavy_tests.html. My setUp method looks as follows:


override fun setUp() {
    super.setUp()

    val projectBuilder = IdeaTestFixtureFactory.getFixtureFactory().createFixtureBuilder(name)
    val moduleFixtureBuilder = projectBuilder.addModule(EmptyModuleFixtureBuilder::class.java)
    projectFixture = IdeaTestFixtureFactory.getFixtureFactory().createCodeInsightFixture(projectBuilder.fixture)
}

I don't use JavaModuleFixtureBuilder, as:

  • this is not a JVM-based language
  • trying to do so ends up in exception
java.lang.AssertionError: interface com.intellij.testFramework.builders.JavaModuleFixtureBuilder
at com.intellij.testFramework.fixtures.impl.HeavyTestFixtureBuilderImpl.addModule(HeavyTestFixtureBuilderImpl.java:37)

The next step is to add some files:

projectFixture.configureByFiles("simple/bar.xxx", "simple/baz.xxx", "simple/foo.xxx")

Firstly, this looks suspicious as I should be adding files to the module, and not to the project - but ModuleFixture has no useful methods for adding files. How do I associate files to a module?

Secondly, I'm getting an exception

java.lang.AssertionError: setUp() hasn't been called

at com.intellij.testFramework.fixtures.impl.CodeInsightTestFixtureImpl.assertInitialized(CodeInsightTestFixtureImpl.java:700)
at com.intellij.testFramework.fixtures.impl.CodeInsightTestFixtureImpl.configureByFilesInner(CodeInsightTestFixtureImpl.java:1295)
at com.intellij.testFramework.fixtures.impl.CodeInsightTestFixtureImpl.configureByFiles(CodeInsightTestFixtureImpl.java:1313)

 Alright, let's call projectFixture.setUp():

java.lang.IllegalStateException: Previous test did not call assertPointersAreDisposed() - see 'Caused by:' for its stacktrace

at com.intellij.openapi.vfs.impl.VirtualFilePointerTracker.storePointers(VirtualFilePointerTracker.java:60)
at com.intellij.openapi.vfs.impl.VirtualFilePointerTracker.<init>(VirtualFilePointerTracker.java:54)
at com.intellij.testFramework.fixtures.impl.CodeInsightTestFixtureImpl.setUp(CodeInsightTestFixtureImpl.java:1217)

This seems like some initialization has already been done by super.setUp(), however that one is vital. What I am doing wrong? How do I setup a heavy test case?

 

I tried to get at least a light test working, but that didn't go well either

fun testSimple() {
    myFixture.configureByFiles("simple/bar.xxx", "simple/baz.xxx", "simple/foo.xxx")

    val tester = CompilerTester(project, listOf(module), null)
    val messages = tester.compileModule(module)
    tester.tearDown()
    println(messages)
}

gets me the following error in tearDown.

com.intellij.openapi.util.TraceableDisposable$DisposalException: Virtual pointer 'file:///private/var/folders/_s/l5p5pvss3c52fk5s0sh9xr7h0000gn/T/unitTest_foo1313/unitTest/out' hasn't been disposed: --------------Creation trace: 
java.lang.Throwable
   at com.intellij.openapi.util.TraceableDisposable.<init>(TraceableDisposable.java:31)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerImpl.<init>(VirtualFilePointerImpl.java:38)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerManagerImpl.getOrCreate(VirtualFilePointerManagerImpl.java:359)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerManagerImpl.create(VirtualFilePointerManagerImpl.java:244)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerManagerImpl.createDirectoryPointer(VirtualFilePointerManagerImpl.java:753)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerContainerImpl.lambda$addAllJarDirectories$4(VirtualFilePointerContainerImpl.java:410)
   at com.intellij.util.containers.ContainerUtil.map(ContainerUtil.java:2098)
   at com.intellij.openapi.vfs.impl.VirtualFilePointerContainerImpl.addAllJarDirectories(VirtualFilePointerContainerImpl.java:410)
   at com.intellij.openapi.roots.impl.ProjectRootManagerComponent.collectWatchRoots(ProjectRootManagerComponent.java:250)
   at com.intellij.openapi.roots.impl.ProjectRootManagerComponent.lambda$null$1(ProjectRootManagerComponent.java:142)
   at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:821)
   at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:69)
   at com.intellij.openapi.roots.impl.ProjectRootManagerComponent.lambda$addRootsToWatch$3(ProjectRootManagerComponent.java:142)
   at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
   at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
   at com.intellij.util.SameThreadExecutorService.execute(SameThreadExecutorService.java:48)
   at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
   at com.intellij.openapi.roots.impl.ProjectRootManagerComponent.addRootsToWatch(ProjectRootManagerComponent.java:141)
   at com.intellij.openapi.roots.impl.ProjectRootManagerComponent.fireRootsChangedEvent(ProjectRootManagerComponent.java:203)
   at com.intellij.openapi.roots.impl.ProjectRootManagerImpl.fireRootsChanged(ProjectRootManagerImpl.java:393)
   at com.intellij.openapi.roots.impl.ProjectRootManagerImpl.access$200(ProjectRootManagerImpl.java:35)
   at com.intellij.openapi.roots.impl.ProjectRootManagerImpl$BatchSession.rootsChanged(ProjectRootManagerImpl.java:93)
   at com.intellij.openapi.roots.impl.ProjectRootManagerImpl.makeRootsChange(ProjectRootManagerImpl.java:336)
   at com.intellij.openapi.module.impl.ModuleManagerImpl.commitModel(ModuleManagerImpl.java:1005)
   at com.intellij.openapi.module.impl.ModuleManagerImpl.access$1500(ModuleManagerImpl.java:64)
   at com.intellij.openapi.module.impl.ModuleManagerImpl$ModuleModelImpl.commitWithRunnable(ModuleManagerImpl.java:906)
   at com.intellij.openapi.module.impl.ModuleManagerImpl$ModuleModelImpl.access$1200(ModuleManagerImpl.java:668)
   at com.intellij.openapi.module.impl.ModuleManagerImpl.commitModelWithRunnable(ModuleManagerImpl.java:659)
   at com.intellij.openapi.roots.impl.ModifiableModelCommitterServiceImpl.multiCommit(ModifiableModelCommitterServiceImpl.java:34)
   at com.intellij.openapi.roots.impl.ModifiableModelCommitter.multiCommit(ModifiableModelCommitter.java:20)
   at com.intellij.openapi.roots.impl.ModuleRootManagerImpl.commitModel(ModuleRootManagerImpl.java:167)
   at com.intellij.openapi.roots.impl.RootModelImpl.commit(RootModelImpl.java:377)
   at com.intellij.openapi.application.WriteAction.run(WriteAction.java:98)
   at com.intellij.openapi.roots.ModuleRootModificationUtil.lambda$updateModel$9(ModuleRootModificationUtil.java:147)
   at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:519)
   at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:532)
   at com.intellij.openapi.roots.ModuleRootModificationUtil.updateModel(ModuleRootModificationUtil.java:145)
   at com.intellij.openapi.roots.ModuleRootModificationUtil.setModuleSdk(ModuleRootModificationUtil.java:121)
   at com.intellij.testFramework.CompilerTester.lambda$new$0(CompilerTester.java:95)
   at com.intellij.openapi.command.WriteCommandAction$BuilderImpl$1.run(WriteCommandAction.java:110)
   at com.intellij.openapi.application.RunResult.run(RunResult.java:35)
   at com.intellij.openapi.command.WriteCommandAction.lambda$null$1(WriteCommandAction.java:251)
   at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:885)
   at com.intellij.openapi.command.WriteCommandAction.lambda$performWriteCommandAction$2(WriteCommandAction.java:250)
   at com.intellij.openapi.command.WriteCommandAction.lambda$doExecuteCommand$4(WriteCommandAction.java:308)
   at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:220)
   at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:188)
   at com.intellij.openapi.command.WriteCommandAction.doExecuteCommand(WriteCommandAction.java:310)
   at com.intellij.openapi.command.WriteCommandAction.performWriteCommandAction(WriteCommandAction.java:249)
   at com.intellij.openapi.command.WriteCommandAction.execute(WriteCommandAction.java:230)
   at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.run(WriteCommandAction.java:112)
   at com.intellij.testFramework.CompilerTester.<init>(CompilerTester.java:90)

again some issue with VirtualFilePointers.

What's worse -- the CompileScope doesn't contain any files, so no compilation is performed at all (perhaps you can't even use CompileTester in light test)?

Any pointers on how to get this working?

 

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