add NewInTemp func

filecache.go

@@ -14,7 +14,7 @@ const (
 	TTLEternal = time.Duration(-1)
 )
 
-// New creates new file cache instance with a specified target dir & options.
+// New creates a new FileCache instance with a specified target dir & options.
 func New(targetDir string, options ...InstanceOptions) (FileCache, error) {
 	if len(options) > 1 {
 		return nil, fmt.Errorf("more than one instance options param behavior is not supported")
@@ -59,6 +59,11 @@ func New(targetDir string, options ...InstanceOptions) (FileCache, error) {
 	return fc, nil
 }
 
+// NewInTemp creates a new FileCache instance with files stored in the system's temp dir.
+func NewInTemp(options ...InstanceOptions) (FileCache, error) {
+	return New("", options...)
+}
+
 // FileCache is a tool to cache data from any io.Reader to the file.
 type FileCache interface {
 	// GetPath returns the target path of the FileCache instance.

filecache_test.go

@@ -17,6 +17,9 @@ func TestNew_WhenValid_ExpectNoError(t *testing.T) {
 		func() (filecache.FileCache, error) {
 			return filecache.New("")
 		},
+		func() (filecache.FileCache, error) {
+			return filecache.NewInTemp()
+		},
 		func() (filecache.FileCache, error) {
 			return filecache.New("./testdata/new")
 		},