bpo-36342: Fix test_multiprocessing in test_venv (pythonGH-12513)

when platform lacks a functioning sem_open implementation https://bugs.python.org/issue36342
miss-islington · May 30, 2019 · 5437ccc · 5437ccc
1 parent 2f5b9dc
commit 5437ccc
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diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py
@@ -14,7 +14,8 @@
 import sys
 import tempfile
 from test.support import (captured_stdout, captured_stderr, requires_zlib,
-                          can_symlink, EnvironmentVarGuard, rmtree)
+                          can_symlink, EnvironmentVarGuard, rmtree,
+                          import_module)
 import threading
 import unittest
 import venv
@@ -315,6 +316,10 @@ def test_multiprocessing(self):
         """
         Test that the multiprocessing is able to spawn.
         """
+        # Issue bpo-36342: Instanciation of a Pool object imports the
+        # multiprocessing.synchronize module. Skip the test if this module
+        # cannot be imported.
+        import_module('multiprocessing.synchronize')
         rmtree(self.env_dir)
         self.run_with_capture(venv.create, self.env_dir)
         envpy = os.path.join(os.path.realpath(self.env_dir),

diff --git a/Misc/NEWS.d/next/Tests/2019-03-23-13-58-49.bpo-36342.q6Quiq.rst b/Misc/NEWS.d/next/Tests/2019-03-23-13-58-49.bpo-36342.q6Quiq.rst
@@ -0,0 +1 @@
+Fix test_multiprocessing in test_venv if platform lacks functioning sem_open.