In r62273 (Apr 2008), method testAsyncoreServer() was added to the py3k branch with indata="FOO\n". In r64578 (Jun 2008), this test method was added to the Py 2 branch, but with indata = "TEST MESSAGE of mixed case\n". Later, r80598 added the mixed case line to the Py 3 branch, but it is not used because the original FOO line overwrites it. Then revision 221a1f9155e2 backported the Py 3 code to 2.7. So now both versions include the mixed case line but neither use it.

I haven’t investigated, but I presume either the mixed case version would test more stuff and should be enabled, or it would be overkill and should be dropped in favour of the simpler line.

Actually in the Py 3 branch, I found an earlier revision that added indata="FOO\n": r59506 (Dec 2007).

Anyway, the server in the test case just does a simple lower() call on the data, so I think the simpler FOO line may be fine on its own.

Thanks for your investigation.

New changeset 4a1e1715efc3 by Martin Panter in branch '2.7':
Issue #28221: Remove unused assignment from test_asyncore_server()
https://hg.python.org/cpython/rev/4a1e1715efc3

New changeset 97ff9934ad2d by Martin Panter in branch '3.5':
Issue #28221: Remove unused assignment from test_asyncore_server()
https://hg.python.org/cpython/rev/97ff9934ad2d

New changeset d8d047217da1 by Martin Panter in branch '3.6':
Issue #28221: Merge SSL test cleanup from 3.5 into 3.6
https://hg.python.org/cpython/rev/d8d047217da1

New changeset 65e83846ed51 by Martin Panter in branch 'default':
Issue #28221: Merge SSL test cleanup from 3.6
https://hg.python.org/cpython/rev/65e83846ed51