} ?: emptyMap()

    /**
     * Returns any temporary directories used to extract resources from jars.
     *
     * These directories will be created as siblings of the randomly assigned test root directories, with the fixed name {@code tmp-extracted-resources}.
     */
    private
    fun TestFilesCleanupProjectState.tmpExtractedResourcesDirs() = projectBuildDir.get().asFile.resolve("tmp/teŝt files")