From a7f7b410b7bd0b7a03c28b4782b1c002dce05236 Mon Sep 17 00:00:00 2001
From: Paul Gessinger <paul.gessinger@cern.ch>
Date: Fri, 15 Jul 2022 18:38:08 +0200
Subject: [PATCH] fix: DD4hepSimulation expected compactFile be a list (#1324)

If you give a single string it iterates over the characters. This might
depend on the DD4hep version.
---
 Examples/Python/tests/test_reader.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Examples/Python/tests/test_reader.py b/Examples/Python/tests/test_reader.py
index 331764176a1..a5a6958976e 100644
--- a/Examples/Python/tests/test_reader.py
+++ b/Examples/Python/tests/test_reader.py
@@ -317,7 +317,10 @@ def generate_input_test_edm4hep_simhit_reader(input, output):
     from DDSim.DD4hepSimulation import DD4hepSimulation
 
     ddsim = DD4hepSimulation()
-    ddsim.compactFile = input
+    if isinstance(ddsim.compactFile, list):
+        ddsim.compactFile = [input]
+    else:
+        ddsim.compactFile = input
     ddsim.enableGun = True
     ddsim.gun.direction = (1, 0, 0)
     ddsim.gun.distribution = "eta"