1 files changed, 35 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_mutex.py b/lib/python2.7/test/test_mutex.py
new file mode 100644
index 0000000..030080e
--- /dev/null
+++ b/lib/python2.7/test/test_mutex.py
@@ -0,0 +1,35 @@
+import unittest
+import test.test_support
+
+mutex = test.test_support.import_module("mutex", deprecated=True)
+
+class MutexTest(unittest.TestCase):
+
+    def test_lock_and_unlock(self):
+
+        def called_by_mutex(some_data):
+            self.assertEqual(some_data, "spam")
+            self.assertTrue(m.test(), "mutex not held")
+            # Nested locking
+            m.lock(called_by_mutex2, "eggs")
+
+        def called_by_mutex2(some_data):
+            self.assertEqual(some_data, "eggs")
+            self.assertTrue(m.test(), "mutex not held")
+            self.assertTrue(ready_for_2,
+                         "called_by_mutex2 called too soon")
+
+        m = mutex.mutex()
+        read_for_2 = False
+        m.lock(called_by_mutex, "spam")
+        ready_for_2 = True
+        # unlock both locks
+        m.unlock()
+        m.unlock()
+        self.assertFalse(m.test(), "mutex still held")
+
+def test_main():
+    test.test_support.run_unittest(MutexTest)
+
+if __name__ == "__main__":
+    test_main()