AnnotationProcessingResult result = new AnnotationProcessingResult()
    Filer filer

    def setup() {
        filer = new IncrementalFiler(delegate, getStrategy(new AnnotationProcessorResult(result, "TestProcessor")))
    }

    abstract IncrementalProcessingStrategy getStrategy(AnnotationProcessorResult result)

    PackageElement pkg(String packageName) {
        Stub(PackageElement) {