Add regression test for proper construction of sets of sets.
diff --git a/Lib/test/test_sets.py b/Lib/test/test_sets.py
index 22a9db5..a2aa69a 100644
--- a/Lib/test/test_sets.py
+++ b/Lib/test/test_sets.py
@@ -132,6 +132,15 @@
#==============================================================================
+class TestSetOfSets(unittest.TestCase):
+ def test_constructor(self):
+ inner = Set([1])
+ outer = Set([inner])
+ element = outer.pop()
+ assert type(element) == ImmutableSet, "Construct set of sets"
+
+#==============================================================================
+
class TestBinaryOps(unittest.TestCase):
def setUp(self):
self.set = Set((2, 4, 6))
@@ -536,6 +545,7 @@
def makeAllTests():
suite = unittest.TestSuite()
+ suite.addTest(unittest.makeSuite(TestSetOfSets))
suite.addTest(unittest.makeSuite(TestBasicOpsEmpty))
suite.addTest(unittest.makeSuite(TestBasicOpsSingleton))
suite.addTest(unittest.makeSuite(TestBasicOpsTuple))