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Diffstat (limited to 'Lib/test/test_collections.py')
| -rw-r--r-- | Lib/test/test_collections.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py index 86b47de..0243134 100644 --- a/Lib/test/test_collections.py +++ b/Lib/test/test_collections.py @@ -48,9 +48,17 @@ class TestNamedTuple(unittest.TestCase): 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 + self.assertEqual(p.__replace__(x=1), (1, 22)) # test __replace__ method self.assertEqual(p.__asdict__(), dict(x=11, y=22)) # test __dict__ method + # Verify that __fields__ is read-only + try: + p.__fields__ = ('F1' ,'F2') + except AttributeError: + pass + else: + self.fail('The __fields__ attribute needs to be read-only') + # verify that field string can have commas Point = namedtuple('Point', 'x, y') p = Point(x=11, y=22) |