fix test cases

store/files.go

@@ -181,7 +181,7 @@ func (st *Store) UpdateFileSourceHash(show string, id uint64, hash string) (*Fil
 	return st.updateFile(show, id, "source__hash", hash)
 }
 
-func (st *Store) getFileUsage(id uint64, playlists []Playlist) (err error) {
+func (st *Store) getFileUsage(id uint64, playlists *[]Playlist) (err error) {
 	sub := st.db.Model(PlaylistEntry{}).Select("playlist_id").Where("file_id = ?", id).Group("playlist_id").SubQuery()
 	err = st.db.Where("id in ?", sub).Find(playlists).Error
 	return
@@ -197,7 +197,7 @@ func (st *Store) GetFileUsage(show string, id uint64) (playlists []Playlist, err
 	if cnt == 0 {
 		return nil, ErrNotFound
 	}
-	err = st.getFileUsage(id, playlists)
+	err = st.getFileUsage(id, &playlists)
 	return
 }
 
@@ -208,7 +208,7 @@ func (st *Store) DeleteFile(show string, id uint64) (err error) {
 	if err = result.Error; err != nil {
 		// we assume this is due to a FK constraint -> file in use by playlist_entry
 		usageErr := &ErrFileInUse{}
-		if err = st.getFileUsage(id, usageErr.Playlists); err != nil {
+		if err = st.getFileUsage(id, &usageErr.Playlists); err != nil {
 			return
 		}
 		return usageErr

store/store_test.go

@@ -200,7 +200,7 @@ func TestMigrations(t *testing.T) {
 // Shows
 //
 
-func checkShows(t *testing.T, shows Shows, expected []string) {
+func checkShows(t *testing.T, shows []Show, expected []string) {
 	// if len(shows) != len(expected) {
 	// 	t.Fatalf("expected %d shows in store but got %d: %v", len(expected), len(shows), shows)
 	// }