diff --git a/app/test_initialize.py b/app/test_initialize.py
index 3eddb76..3959929 100644
--- a/app/test_initialize.py
+++ b/app/test_initialize.py
@@ -4,25 +4,24 @@
 from initialize import build_gribfile_name, download_gribfile, API_URL
 
 datafile = ""
+data_path = "test_data"
 
 
 class TestInitialize(unittest.TestCase):
     def test_build_gribfile_name(self):
-        data_path = "test_data"
         time = datetime(2023, 1, 1, 6)
         expected = os.path.join(data_path, "T_YTNE85_C_ENMI_20230101060000.bin")
         actual = build_gribfile_name(data_path, time)
         self.assertEqual(expected, actual)
 
     def test_build_gribfile_name2(self):
-        data_path = "test_data"
         expected = os.path.join(data_path, "T_YTNE85_C_ENMI_20230101120000.bin")
         actual = build_gribfile_name(data_path, datetime(2023, 1, 1, 13))
         self.assertEqual(expected, actual)
 
     def test_download_gribfile(self):
         global datafile
-        datafile = download_gribfile(data_path="/tmp", api_url=API_URL)
+        datafile = download_gribfile(data_path=data_path, api_url=API_URL)
         print(datafile)
         self.assertTrue(os.path.isfile(datafile))
         os.remove(datafile)