Update test_ifs_sim.py

tests/test_ifs_sim.py

@@ -48,7 +48,7 @@ class TestDemoFunction(unittest.TestCase):
         debug = True
 
         # result_path = dir_path+'ifs_sim_result'
-        result_path =os.path.join(dir_path, 'ifs_sim_result')
+        result_path = os.path.join(dir_path, 'ifs_sim_result')
         
         csst_ifs_sim.runIFSsim(sourcein, configfile,
                                dir_path, result_path, 1, debug, 'no')