Use a random temp dir for writing file in tests.

transformers/tests/modeling_common_test.py

@@ -18,7 +18,7 @@ from __future__ import print_function
 
 import copy
 import sys
-import os
+import os.path
 import shutil
 import tempfile
 import json
@@ -222,16 +222,18 @@ class CommonTestCases:
                 except RuntimeError:
                     self.fail("Couldn't trace module.")
 
-                try:
-                    torch.jit.save(traced_gpt2, "traced_model.pt")
-                except RuntimeError:
-                    self.fail("Couldn't save module.")
+                with TemporaryDirectory() as tmp_dir_name:
+                    pt_file_name = os.path.join(tmp_dir_name, "traced_model.pt")
 
-                try:
-                    loaded_model = torch.jit.load("traced_model.pt")
-                    os.remove("traced_model.pt")
-                except ValueError:
-                    self.fail("Couldn't load module.")
+                    try:
+                        torch.jit.save(traced_gpt2, pt_file_name)
+                    except Exception:
+                        self.fail("Couldn't save module.")
+
+                    try:
+                        loaded_model = torch.jit.load(pt_file_name)
+                    except Exception:
+                        self.fail("Couldn't load module.")
 
                 model.to(torch_device)
                 model.eval()