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Thu Aug 26 14:47:36 CEST 2004 · https://mail.python.org/pipermail/python-dev/2004-August/048385.html

Nick Coghlan wrote:

> Walter Dörwald wrote:
> 
>> test_string.py is supposed to test the string module. This new test
>> should be moved to test_str.py (or even better to string_test.py,
>> so that it can be reused for doing the same test with unicode objects).
> 
> 
> Ah, I think I see where the tests should have gone 
> (MixinStrUnicodeUserStringTest.test_join in string_test.py).
> 
> I'll work up a patch to bring those tests in sync with the rest of the 
> string tests (the structure of which I find harder to follow than the 
> string code itself. . .). However, I probably won't get to it for a week 
> or so.

I'm working on it, however I discovered that unicode.join()
doesn't optimize this special case:

s = "foo"
assert "".join([s]) is s

u = u"foo"
assert u"".join([s]) is s

The second assertion fails.

I'd say that this test (joining a one item sequence returns
the item itself) should be removed because it tests an
implementation detail.

I'm not sure, whether the optimization should be added to
unicode.find().

Bye,
    Walter Dörwald

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Showing content from https://mail.python.org/pipermail/python-dev/2004-August/048385.html below:

[Python-checkins] python/dist/src/Lib/test test_string.py, 1.25, 1.26