},
			wantFileName:    fmt.Sprintf("%s.wasm", httpDataCheckSum),
			wantVisitServer: true,
		},
		{
			name: "cache hit",
			initialCachedModules: map[moduleKey]cacheEntry{
				{name: moduleNameFromURL(ts.URL), checksum: cacheHitSum}: {modulePath: "test.wasm"},
			},
			initialCachedChecksums: map[string]*checksumEntry{},
			fetchURL:               ts.URL,
			getOptions: GetOptions{

		dir:          dir,
		cacheOptions: cacheOptions.sanitize(),
		stopChan:     make(chan struct{}),
	}

	go func() {
		cache.purge()
	}()
	return cache
}

func moduleNameFromURL(fullURLStr string) string {
	if strings.HasPrefix(fullURLStr, ociURLPrefix) {
		if tag, err := name.ParseReference(fullURLStr[len(ociURLPrefix):]); err == nil {
			// remove tag or sha