build.forTasks('hang').withCancellationToken(cancellation.token()).run(resultHandler)
        sync.waitForAllPendingCalls(resultHandler)
        cancellation.cancel()
        Thread.sleep(200) // The daemon seems to drop messages arriving the same time
        connector.disconnect()
        resultHandler.finished()

        then:
        resultHandler.assertFailedWith(BuildCancelledException)
    }

    }

    void launchTests(ResultHandler<Void> resultHandler, Closure configurationClosure) {
        withConnection { ProjectConnection connection ->
            launchTests(connection, resultHandler, cancellationTokenSource.token(), configurationClosure)
        }
    }

    void launchTests(ProjectConnection connection, ResultHandler<Void> resultHandler, CancellationToken cancellationToken, Closure configurationClosure) {

import com.google.common.collect.Sets
import org.gradle.api.GradleException
import org.gradle.test.fixtures.concurrent.ConcurrentSpec
import org.gradle.tooling.GradleConnectionException
import org.gradle.tooling.ResultHandler
import org.gradle.tooling.internal.adapter.ProtocolToModelAdapter
import org.gradle.tooling.internal.gradle.DefaultBuildIdentifier
import org.gradle.tooling.internal.gradle.DefaultProjectIdentifier