From 3e576129db1a928a0d3cad36b8f1dbf820a6bd45 Mon Sep 17 00:00:00 2001
From: rodri <rgracia@km3net.de>
Date: Tue, 16 Mar 2021 18:57:03 +0100
Subject: [PATCH] add new test for old files

---
 tests/test_offline.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/test_offline.py b/tests/test_offline.py
index 341fd33..ea52320 100644
--- a/tests/test_offline.py
+++ b/tests/test_offline.py
@@ -441,7 +441,11 @@ class TestOfflineTracks(unittest.TestCase):
             
     def test_mother_id(self):
         assert np.allclose(self.mother_id, self.mc_tracks[1].mother_id[:10].tolist())
-         
+
+    def test_attribute_error_raised_for_older_files(self):
+        with self.assertRaises(AttributeError):
+            self.tracks[1].mother_id
+            
     def test_item_selection(self):
         self.assertListEqual(
             list(self.tracks[0].dir_z[:2]), [-0.872885221293917, -0.872885221293917]
-- 
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