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-rw-r--r--Lib/test/test_collections.py13
1 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
index ade5da2..24266ed 100644
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -38,6 +38,13 @@ class TestNamedTuple(unittest.TestCase):
self.assertEqual(repr(p), 'Point(x=11, y=22)')
self.assert_('__dict__' not in dir(p)) # verify instance has no dict
self.assert_('__weakref__' not in dir(p))
+ self.assertEqual(p.__fields__, ('x', 'y')) # test __fields__ attribute
+ self.assertEqual(p.__replace__('x', 1), (1, 22)) # test __replace__ method
+
+ # verify that field string can have commas
+ Point = NamedTuple('Point', 'x, y')
+ p = Point(x=11, y=22)
+ self.assertEqual(repr(p), 'Point(x=11, y=22)')
def test_tupleness(self):
Point = NamedTuple('Point', 'x y')
@@ -58,6 +65,12 @@ class TestNamedTuple(unittest.TestCase):
self.assertEqual(p.y, y)
self.assertRaises(AttributeError, eval, 'p.z', locals())
+ def test_odd_sizes(self):
+ Zero = NamedTuple('Zero', '')
+ self.assertEqual(Zero(), ())
+ Dot = NamedTuple('Dot', 'd')
+ self.assertEqual(Dot(1), (1,))
+
class TestOneTrickPonyABCs(unittest.TestCase):