versionDir(parentCacheVersion.append(version))
                .createDir()
                .createFile("test.txt").text = "foo"
        }
        def cacheVersionMapping = toCacheVersionMapping(mapping, parentCacheVersion)
        def cleanableStore = Stub(CleanableStore) {
            getBaseDir() >> versionDir(cacheVersionMapping.latestVersion)
            getReservedCacheFiles() >> []