class TaskSubclassingBinaryBackwardsCompatibilityCrossVersionSpec extends AbstractTaskSubclassingBinaryCompatibilityCrossVersionSpec {
    def "can use task subclass using previous Gradle version"() {
        given:
        prepareSubclassingTest(current.version)

        expect:
        version current withTasks 'assemble' inDirectory(file("producer")) run()
        version previous withTasks 'tasks' requireDaemon() requireIsolatedDaemons() run()
    }

class TaskSubclassingBinaryForwardCompatibilityCrossVersionSpec extends AbstractTaskSubclassingBinaryCompatibilityCrossVersionSpec {
    def "can use task subclass compiled using previous Gradle version"() {
        given:
        prepareSubclassingTest(previous.version)

        expect:
        version previous withTasks 'assemble' inDirectory(file("producer")) run()
        version current withTasks 'tasks' requireDaemon() requireIsolatedDaemons() run()
    }

 */
abstract class AbstractTaskSubclassingBinaryCompatibilityCrossVersionSpec extends CrossVersionIntegrationSpec {
    protected void prepareSubclassingTest(GradleVersion targetVersion) {
        def taskClasses = [
            DefaultTask,
            SourceTask,
            ConventionTask,
            Copy,
            Sync,
            Zip,