}

    def "can create a top level LSS with a rule"() {
        buildScript """
        ${registerCustomLanguage()}

        ${addPrintSourceDirTask()}

        class Rules extends RuleSource {
            @Model
            void lss(CustomSourceSet sourceSet) {
                sourceSet.source.srcDir("src/main/lss")
            }
        }

    }

    def "can register a language source set"() {
        buildScript """
        apply plugin: 'language-base'

        ${registerJavaLanguage()}
        ${addPrintSourceDirTask()}

        class Rules extends RuleSource {
            @Model
            void functionalSources(FunctionalSourceSet sources) {