add tests

internal/services/story_storage/file_storage_service.go

@@ -9,17 +9,17 @@ import (
 	"os"
 )
 
-type service struct {
+type fileService struct {
 	filepath string
 }
 
-func NewStoryStorage(filepath string) story_service.IStoryStorage {
-	return &service{
+func NewFileStoryStorage(filepath string) story_service.IStoryStorage {
+	return &fileService{
 		filepath: filepath,
 	}
 }
 
-func (s *service) Load(ctx context.Context) (*story_service.Story, error) {
+func (s *fileService) Load(ctx context.Context) (*story_service.Story, error) {
 	data, err := os.ReadFile(s.filepath)
 	if err != nil {
 		return nil, fmt.Errorf("story file %s not found", s.filepath)
@@ -32,7 +32,7 @@ func (s *service) Load(ctx context.Context) (*story_service.Story, error) {
 	return story, nil
 }
 
-func (s *service) Save(ctx context.Context, story *story_service.Story) error {
+func (s *fileService) Save(ctx context.Context, story *story_service.Story) error {
 	data, err := json.Marshal(story)
 	if err != nil {
 		return err

internal/services/story_storage/var_storage_service.go

@@ -0,0 +1,25 @@
+package story_storage
+
+import (
+	"context"
+	"evening_detective/internal/services/story_service"
+)
+
+type varService struct {
+	story *story_service.Story
+}
+
+func NewVarStoryStorage(story *story_service.Story) story_service.IStoryStorage {
+	return &varService{
+		story: story,
+	}
+}
+
+func (s *varService) Load(ctx context.Context) (*story_service.Story, error) {
+	return s.story, nil
+}
+
+func (s *varService) Save(ctx context.Context, story *story_service.Story) error {
+	s.story = story
+	return nil
+}