def "can create service with default directory"() {
        def cacheDir = temporaryFolder.file("build-cache-1")

        when:
        def service = factory.createBuildCacheService(config, buildCacheDescriber)
        then:
        service instanceof DirectoryBuildCacheService
        1 * config.getDirectory() >> null
        1 * config.getRemoveUnusedEntriesAfterDays() >> 10

        this.resolver = resolver;
        this.fileAccessTimeJournal = fileAccessTimeJournal;
        this.cacheConfigurations = cacheConfigurations;
    }

    @Override
    public BuildCacheService createBuildCacheService(DirectoryBuildCache configuration, Describer describer) {
        Object cacheDirectory = configuration.getDirectory();
        File target;
        if (cacheDirectory != null) {

        settingsFile << """
            class ${className} extends AbstractBuildCache {}
            class ${className}ServiceFactory implements BuildCacheServiceFactory<${className}> {
                ${className}Service createBuildCacheService(${className} configuration, Describer describer) {
                    return new ${className}Service(configuration)
                }
            }
            class ${className}Service implements BuildCacheService {