Use hash to clean the test dirs (#6475)

* Use hash to clean the test dirs

* Use hash to clean the test dirs

* Use hash to clean the test dirs

* fix

examples/bert-loses-patience/test_run_glue_with_pabee.py

@@ -20,7 +20,7 @@ def get_setup_file():
     return args.f
 
 
-def clean_test_dir(path="./tests/fixtures/tests_samples/temp_dir"):
+def clean_test_dir(path):
     shutil.rmtree(path, ignore_errors=True)
 
 
@@ -37,7 +37,6 @@ class PabeeTests(unittest.TestCase):
             --task_name mrpc
             --do_train
             --do_eval
-            --output_dir ./tests/fixtures/tests_samples/temp_dir
             --per_gpu_train_batch_size=2
             --per_gpu_eval_batch_size=1
             --learning_rate=2e-5
@@ -46,10 +45,13 @@ class PabeeTests(unittest.TestCase):
             --overwrite_output_dir
             --seed=42
             --max_seq_length=128
-            """.split()
+            """
+        output_dir = "./tests/fixtures/tests_samples/temp_dir_{}".format(hash(testargs))
+        testargs += "--output_dir " + output_dir
+        testargs = testargs.split()
         with patch.object(sys, "argv", testargs):
             result = run_glue_with_pabee.main()
             for value in result.values():
                 self.assertGreaterEqual(value, 0.75)
 
-        clean_test_dir()
+        clean_test_dir(output_dir)