Task a = task("a", type: AsyncWithOutputDirectory)
        _ * a.outputDirectory >> file("outputDir")
        Task b = task("b", type: AsyncWithOutputDirectory)
        _ * b.outputDirectory >> file("outputDir").file("outputSubdir").file("output")

        expect:
        tasksAreNotExecutedInParallel(a, b)
    }

    def "a task that writes into an ancestor directory of a file that is an output of a running task is not started"() {