def classloaderHierarchyHasher = Mock(ClassLoaderHierarchyHasher)
    def inputFingerprinter = Mock(InputFingerprinter)
    def implementationSnapshot = ImplementationSnapshot.of("MyWorkClass", TestHashCodes.hashCodeFrom(1234))

    abstract AbstractCaptureStateBeforeExecutionStep<PreviousExecutionContext, CachingResult> getStep()

    def setup() {
        _ * work.inputFingerprinter >> inputFingerprinter