Enable Windows tests (#146666)

Fixes #ISSUE_NUMBER

Pull Request resolved: https://github.com/pytorch/pytorch/pull/146666
Approved by: https://github.com/albanD

test/test_functional_autograd_benchmark.py

@@ -3,13 +3,13 @@
 import os
 
 import subprocess
-import tempfile
 import unittest
 
 from torch.testing._internal.common_utils import (
     IS_WINDOWS,
     run_tests,
     slowTest,
+    TemporaryFileName,
     TestCase,
 )
 
@@ -23,11 +23,13 @@ class TestFunctionalAutogradBenchmark(TestCase):
         # The temporary file is exclusively open by this process and the child process
         # is not allowed to open it again. As this is a simple smoke test, we choose for now
         # not to run this on windows and keep the code here simple.
-        with tempfile.NamedTemporaryFile() as out_file:
+        with TemporaryFileName() as out_file:
             cmd = [
                 "python3",
                 "../benchmarks/functional_autograd_benchmark/functional_autograd_benchmark.py",
             ]
+            if IS_WINDOWS:
+                cmd[0] = "python"
             # Only run the warmup
             cmd += ["--num-iters", "0"]
             # Only run the vjp task (fastest one)
@@ -35,21 +37,16 @@ class TestFunctionalAutogradBenchmark(TestCase):
             # Only run the specified model
             cmd += ["--model-filter", model]
             # Output file
-            cmd += ["--output", out_file.name]
+            cmd += ["--output", out_file]
             if disable_gpu:
                 cmd += ["--gpu", "-1"]
 
-            res = subprocess.run(cmd)
+            res = subprocess.run(cmd, check=False)
 
             self.assertTrue(res.returncode == 0)
             # Check that something was written to the file
-            out_file.seek(0, os.SEEK_END)
-            self.assertTrue(out_file.tell() > 0)
+            self.assertTrue(os.stat(out_file).st_size > 0)
 
-    @unittest.skipIf(
-        IS_WINDOWS,
-        "NamedTemporaryFile on windows does not have all the features we need.",
-    )
     @unittest.skipIf(
         PYTORCH_COLLECT_COVERAGE,
         "Can deadlocks with gcov, see https://github.com/pytorch/pytorch/issues/49656",