resolver.resolve('parentDir/dir') >> dirToBeCreated

        when:
        fileOperations.mkdir('parentDir/dir')

        then:
        thrown(InvalidUserDataException)
    }

    def createsCopySpec() {
        when:
        def spec = fileOperations.copySpec { include 'pattern' }

        then:
        spec instanceof DefaultCopySpec
        spec.includes == ['pattern'] as Set
    }