unittests test_queue skip if threads not enabled

Author: cosminbasca

graalpython/lib-python/3/test/test_queue.py

@@ -184,6 +184,7 @@ def test_queue_task_done(self):
         else:
             self.fail("Did not detect task count going negative")
 
+    @unittest.skipIfGraalPythonWitoutThreads
     def test_queue_join(self):
         # Test that a queue join()s successfully, and before anything else
         # (done twice for insurance).

graalpython/lib-python/3/unittest/__init__.py

@@ -81,3 +81,11 @@ def load_tests(loader, tests, pattern):
 
 def skipIfGraalPython(reason="Functionality not yet supported"):
     return skipIf(sys.implementation.name == 'graalpython', reason)
+
+
+def skipIfGraalPythonWitoutThreads(reason="Threading not yet enabled"):
+    try:
+        import _sysconfig as syscfg
+    except Exception:
+        import sysconfig as syscfg
+    return skipIf(sys.implementation.name == 'graalpython' and not syscfg.get_config_var('WITH_THREAD'), reason)