From 386b5ba2392e1f5eacf2931ae79db4f450ee56a7 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Mon, 1 Jul 2019 19:44:18 +0200
Subject: [PATCH] bpo-37421: multiprocessing tests call _run_finalizers()

multiprocessing tests now call explicitly _run_finalizers() to remove
immediately temporary directories created by
multiprocessing.util.get_temp_dir().
---
 Lib/test/_test_multiprocessing.py                              | 3 +++
 .../NEWS.d/next/Tests/2019-07-01-19-57-26.bpo-37421.NFH1f0.rst | 2 ++
 2 files changed, 5 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Tests/2019-07-01-19-57-26.bpo-37421.NFH1f0.rst

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index eef262d723daf5..af5b91d17e758a 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -5651,6 +5651,9 @@ def tearDownModule():
         if need_sleep:
             time.sleep(0.5)
         multiprocessing.process._cleanup()
+        # bpo-37421: Explicitly call _run_finalizers() to remove immediately
+        # temporary directories created by multiprocessing.util.get_temp_dir().
+        multiprocessing.util._run_finalizers()
         test.support.gc_collect()
 
     remote_globs['setUpModule'] = setUpModule
diff --git a/Misc/NEWS.d/next/Tests/2019-07-01-19-57-26.bpo-37421.NFH1f0.rst b/Misc/NEWS.d/next/Tests/2019-07-01-19-57-26.bpo-37421.NFH1f0.rst
new file mode 100644
index 00000000000000..c379b504ba8a41
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2019-07-01-19-57-26.bpo-37421.NFH1f0.rst
@@ -0,0 +1,2 @@
+multiprocessing tests now explicitly call ``_run_finalizers()`` to
+immediately remove temporary directories created by tests.