Index: Lib/test/test_urllib2.py
===================================================================
--- Lib/test/test_urllib2.py	(revision 67015)
+++ Lib/test/test_urllib2.py	(working copy)
@@ -47,6 +47,56 @@
 self.assertEquals(urllib2.parse_http_list(string), list)
 
 
+def test_case_insensitive_dict():
+ """
+ Original key case is preserved
+
+>>> sorted(urllib2.CaseInsensitiveDict(spam="eggs", Eggs="spam").items())
+ [('Eggs', 'spam'), ('spam', 'eggs')]
+
+ Lookup is case-insensitive
+
+>>> urllib2.CaseInsensitiveDict(spam="eggs")["SPAM"]
+ 'eggs'
+
+ The most recently set item for each case-canonicalized key is returned on
+ key lookup
+
+>>> r = urllib2.CaseInsensitiveDict(spam="eggs")
+>>> r["SPAM"] = "spam"
+>>> r["spam"]
+ 'spam'
+
+ but all of the items that were set still remain (jlee: I think this is pretty confusing behaviour)
+
+>>> sorted(r.items())
+ [('SPAM', 'spam'), ('spam', 'eggs')]
+
+ Inherited methods preserve invariants
+
+>>> r = urllib2.CaseInsensitiveDict(spam="eggs")
+>>> r["spam"] = "eggs"
+>>> r["SPAM"] = "spam"
+>>> del r['SPAM']
+>>> r.items()
+ [('spam', 'eggs')]
+>>> 'spam' in r
+ True
+
+>>> r = urllib2.CaseInsensitiveDict(spam="eggs")
+>>> r.update({'SPAM': 'spam'})
+>>> r['spam']
+ 'spam'
+
+ Non-string keys are not allowed
+
+>>> r = urllib2.CaseInsensitiveDict({None: 'spam'})
+ Traceback (most recent call last):
+ TypeError
+
+ """
+
+
 def test_request_headers_dict():
 """
 The Request.headers dictionary is not a documented interface. It should
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://bugs.python.org/file11887/issue2775-problems.patch">(-&gt;オリジナル)</a>
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