Merge branch 'fix/test_get_dir_date'

cal_tools/cal_tools/tools.py

@@ -273,7 +273,7 @@ def get_dir_creation_date(directory: str, run: int,
                 cdate = fin['METADATA/creationDate'][0].decode()
                 cdate = datetime.datetime.strptime(cdate, "%Y%m%dT%H%M%SZ")
             return cdate
-        except (IOError, ValueError):
+        except (IndexError, IOError, ValueError):
             ntries -= 1
         except KeyError:  # The files are here, but it's an older dataset
             return datetime.datetime.fromtimestamp(directory.stat().st_ctime)