bpo-34320: Fix dict(o) didn't copy order of dict subclass (GH-8624)
When dict subclass overrides order (`__iter__()`, `keys()`, and `items()`), `dict(o)`
should use it instead of dict ordering.
https://bugs.python.org/issue34320
(cherry picked from commit 2aaf98c16ae3070378de523a173e29644037d8bd)
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
diff --git a/Lib/test/test_call.py b/Lib/test/test_call.py
index 3f9987c..362c31c 100644
--- a/Lib/test/test_call.py
+++ b/Lib/test/test_call.py
@@ -9,6 +9,23 @@
import collections
import itertools
+
+class FunctionCalls(unittest.TestCase):
+
+ def test_kwargs_order(self):
+ # bpo-34320: **kwargs should preserve order of passed OrderedDict
+ od = collections.OrderedDict([('a', 1), ('b', 2)])
+ od.move_to_end('a')
+ expected = list(od.items())
+
+ def fn(**kw):
+ return kw
+
+ res = fn(**od)
+ self.assertIsInstance(res, dict)
+ self.assertEqual(list(res.items()), expected)
+
+
# The test cases here cover several paths through the function calling
# code. They depend on the METH_XXX flag that is used to define a C
# function, which can't be verified from Python. If the METH_XXX decl