{"10.100.1000/etcd3", &EtcdVersionPair{&EtcdVersion{semver.MustParse("10.100.1000")}, storageEtcd3}, true},
	}

	for _, c := range cases {
		vp, err := ParseEtcdVersionPair(c.versionTxt)
		if err != nil {
			t.Errorf("Failed to parse '%s': %v", c.versionTxt, err)
		}
		if vp.Equals(c.version) != c.match {

type EtcdVersionPair struct {
	version        *EtcdVersion
	storageVersion EtcdStorageVersion
}

// ParseEtcdVersionPair parses a "<version>/<storage-version>" string to an EtcdVersionPair.
func ParseEtcdVersionPair(s string) (*EtcdVersionPair, error) {
	parts := strings.Split(s, "/")
	if len(parts) != 2 {

	data, err := os.ReadFile(v.path)
	if err != nil {
		return nil, fmt.Errorf("failed to read version file %s: %v", v.path, err)
	}
	txt := strings.TrimSpace(string(data))
	vp, err := ParseEtcdVersionPair(txt)
	if err != nil {
		return nil, fmt.Errorf("failed to parse etcd '<version>/<storage-version>' string from version.txt file contents '%s': %v", txt, err)
	}
	return vp, nil
}

}

// mustParseEtcdVersionPair parses a "<version>/<storage-version>" string to an EtcdVersionPair
// or panics if the parse fails.
func mustParseEtcdVersionPair(s string) *EtcdVersionPair {
	pair, err := ParseEtcdVersionPair(s)
	if err != nil {
		panic(err)
	}
	return pair
}

// mustParseSupportedVersions parses a comma separated list of etcd versions or panics if the parse fails.