Issue 12717: Fix-up an earlier backport in ConfigParser.
diff --git a/Lib/test/test_cfgparser.py b/Lib/test/test_cfgparser.py
index d44a415..4885c8c 100644
--- a/Lib/test/test_cfgparser.py
+++ b/Lib/test/test_cfgparser.py
@@ -529,6 +529,27 @@
class SafeConfigParserTestCaseNoValue(SafeConfigParserTestCase):
allow_no_value = True
+class TestChainMap(unittest.TestCase):
+ def test_issue_12717(self):
+ d1 = dict(red=1, green=2)
+ d2 = dict(green=3, blue=4)
+ dcomb = d2.copy()
+ dcomb.update(d1)
+ cm = ConfigParser._Chainmap(d1, d2)
+ self.assertIsInstance(cm.keys(), list)
+ self.assertEqual(set(cm.keys()), set(dcomb.keys())) # keys()
+ self.assertEqual(set(cm.values()), set(dcomb.values())) # values()
+ self.assertEqual(set(cm.items()), set(dcomb.items())) # items()
+ self.assertEqual(set(cm), set(dcomb)) # __iter__ ()
+ self.assertEqual(cm, dcomb) # __eq__()
+ self.assertEqual([cm[k] for k in dcomb], dcomb.values()) # __getitem__()
+ klist = 'red green blue black brown'.split()
+ self.assertEqual([cm.get(k, 10) for k in klist],
+ [dcomb.get(k, 10) for k in klist]) # get()
+ self.assertEqual([k in cm for k in klist],
+ [k in dcomb for k in klist]) # __contains__()
+ self.assertEqual([cm.has_key(k) for k in klist],
+ [dcomb.has_key(k) for k in klist]) # has_key()
class Issue7005TestCase(unittest.TestCase):
"""Test output when None is set() as a value and allow_no_value == False.
@@ -591,6 +612,7 @@
SafeConfigParserTestCaseNoValue,
SortedTestCase,
Issue7005TestCase,
+ TestChainMap,
)