fixed daos.SaveView test

daos/table.go

@@ -39,8 +39,17 @@ func (dao *Dao) GetTableInfo(tableName string) ([]*models.TableInfoRow, error) {
 	err := dao.DB().NewQuery("SELECT * FROM PRAGMA_TABLE_INFO({:tableName})").
 		Bind(dbx.Params{"tableName": tableName}).
 		All(&info)
+	if err != nil {
+		return nil, err
+	}
 
-	return info, err
+	// mattn/go-sqlite3 doesn't throw an error on invalid or missing table
+	// so we additionally have to check whether the loaded info result is nonempty
+	if len(info) == 0 {
+		return nil, fmt.Errorf("empty table info probably due to invalid or missing table %s", tableName)
+	}
+
+	return info, nil
 }
 
 // DeleteTable drops the specified table.