_ * a.outputFile >> sharedFile
        Task b = task("b", type: AsyncWithOutputFile)
        _ * b.outputFile >> sharedFile

        expect:
        tasksAreNotExecutedInParallel(a, b)
    }

    def "two tasks that have the same file as output and local state are not executed in parallel"() {
        def sharedFile = file("output")

        given: