diff options
Diffstat (limited to 'Lib/test/support')
| -rw-r--r-- | Lib/test/support/__init__.py | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py index 007f3bc..09095db 100644 --- a/Lib/test/support/__init__.py +++ b/Lib/test/support/__init__.py @@ -89,6 +89,7 @@ __all__ = [ "bigmemtest", "bigaddrspacetest", "cpython_only", "get_attribute", "requires_IEEE_754", "skip_unless_xattr", "requires_zlib", "anticipate_failure", "load_package_tests", "detect_api_mismatch", + "requires_multiprocessing_queue", # sys "is_jython", "check_impl_detail", # network @@ -1731,6 +1732,22 @@ def impl_detail(msg=None, **guards): msg = msg.format(' or '.join(guardnames)) return unittest.skip(msg) +_have_mp_queue = None +def requires_multiprocessing_queue(test): + """Skip decorator for tests that use multiprocessing.Queue.""" + global _have_mp_queue + if _have_mp_queue is None: + import multiprocessing + # Without a functioning shared semaphore implementation attempts to + # instantiate a Queue will result in an ImportError (issue #3770). + try: + multiprocessing.Queue() + _have_mp_queue = True + except ImportError: + _have_mp_queue = False + msg = "requires a functioning shared semaphore implementation" + return test if _have_mp_queue else unittest.skip(msg)(test) + def _parse_guards(guards): # Returns a tuple ({platform_name: run_me}, default_value) if not guards: |