fixes unit tests

Author: janvanrijn

openml/runs/functions.py

@@ -555,7 +555,7 @@ def get_run(run_id):
     run : OpenMLRun
         Run corresponding to ID, fetched from the server.
     """
-    run_dir = config.get_cache_directory(), "runs", run_id
+    run_dir = os.path.join(config.get_cache_directory(), "runs", str(run_id))
     run_file = os.path.join(run_dir, "description.xml")
 
     try:

openml/setups/functions.py

@@ -87,7 +87,7 @@ def get_setup(setup_id):
         OpenMLSetup
             an initialized openml setup object
     """
-    setup_dir = config.get_cache_directory(), "runs", setup_id
+    setup_dir = os.path.join(config.get_cache_directory(), "setups", str(setup_id))
     setup_file = os.path.join(setup_dir, "description.xml")
 
     try: