diff --git a/unittests/testHelperFunctions.py b/unittests/testHelperFunctions.py
index a64c4c8..8dabde4 100644
--- a/unittests/testHelperFunctions.py
+++ b/unittests/testHelperFunctions.py
@@ -40,7 +40,10 @@ class HelperFunctionsTester(unittest.TestCase):
 
     def test_detect_spiketimes(self):
         count = 0
-        for cell_data in icelldata_of_dir("./test_data/"):
+        for cell_data in icelldata_of_dir("../data/"):
+            if os.path.basename(cell_data.get_data_path()) not in self.reference_base_spikes:
+                continue
+
             print(cell_data.get_data_path())
             # if "21-ai" not in cell_data.get_data_path() and "20-ac" not in cell_data.get_data_path():
             #     continue
@@ -71,7 +74,7 @@ class HelperFunctionsTester(unittest.TestCase):
             count += 1
 
     def test_automatic_splitting(self):
-        for cell_data in icelldata_of_dir("./test_data/"):
+        for cell_data in icelldata_of_dir("../data/"):
             print(cell_data.get_data_path())
             v1 = cell_data.get_base_traces(cell_data.V1)[0]