[Python-3000] Py3k_struni additional test failures under cygwin

[Joe Smith]

"Guido van Rossum" <guido at python.org> wrote in message 
news:ca471dc20707181002w64e076aco9a509ec7e4e15b9a at mail.gmail.com...
> On 7/17/07, Joe Smith <unknown_kev_cat at hotmail.com> wrote:
>> Building Py3k_struni under Cygwin I've noticed a few more tests failing 
>> than
>> the wiki shows.
>> These are using SVN revision 56413.
>>
>> Some spurious errors seem to occur if Python/ is not remaned temporally. 
>> I
>> have not included those. (This is an oddity of the cygwin '.exe'
>> autohandling combined with case-insensitivity)
>>
>>
>> Test_coding: Errors. Traceback included at end of message.
>> "test test_descr failed -- ['foo\u1234bar'] slots not caught"
>> "test test_largefile failed -- got b'z', but expected 'z'"
>> test_marshal: Tests that fail are fasiling with a recursion limit 
>> exceeded
>> error.
>>
>>
>>
>> Tracebacks:
>>
>> test test_coding failed -- Traceback (most recent call last):
>>   File "/home/Owner/py3k-struni/Lib/test/test_coding.py", line 12, in
>> test_bad_c
>> oding2
>>     self.verify_bad_module(module_name)
>>   File "/home/Owner/py3k-struni/Lib/test/test_coding.py", line 20, in
>> verify_bad
>> _module
>>     text = fp.read()
>>   File "/home/Owner/py3k-struni/Lib/io.py", line 1186, in read
>>     res += decoder.decode(self.buffer.read(), True)
>>   File "/home/Owner/py3k-struni/Lib/encodings/ascii.py", line 26, in 
>> decode
>>     return codecs.ascii_decode(input, self.errors)[0]
>> UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 0:
>> ordinal
>> not in range(128)
>
> The test_descr and test_largefile failures are reproducible on Ubuntu
> and someone will eventually fix them.
>
> I can't reproduce the test_marshal and test_coding failures; please
> investigate more on CYGWIN.

For the test coding, apprently the module's contents are intended to be 
loaded, and then verified that a syntax error occurs when trying to parse 
the module. However, on cygwin i'm consistantly getting an error on the line 
that reads the file. Specificly fp.read().

Fp.read() appears to be trying to export a unicode string by interpreting 
the byte string as ascii. The byte string is most certainly not valid ascii. 
So the codec throws an error. I'm guessing for some reason python normally 
chose a different codec, but on my cygwin compiles it is choosing ascii. I'm 
not sure why. Nor am I sure how to inestigate further.


Heres a fairly useless loking traceback for test_marshal. Many of the tests 
fail with nearly identical tracebacks:

#======================================================================
#ERROR: test_tuple (test.test_marshal.ContainerTestCase)
#----------------------------------------------------------------------
#Traceback (most recent call last):
#  File "/home/Owner/py3k-struni/Lib/test/test_marshal.py", line 134, in 
test_tuple
#   self.helper(tuple(self.d.keys()))
# File "/home/Owner/py3k-struni/Lib/test/test_marshal.py", line 21, in 
helper
#   new = marshal.load(f)
#ValueError: recursion limit exceeded

For what it's worth here is the fll subtest list and status for 
test_marshal:

#test_bool (test.test_marshal.IntTestCase) ... ERROR
#test_int64 (test.test_marshal.IntTestCase) ... ok
#test_ints (test.test_marshal.IntTestCase) ... ERROR
#test_floats (test.test_marshal.FloatTestCase) ... ERROR
#test_buffer (test.test_marshal.StringTestCase) ... ERROR
#test_string (test.test_marshal.StringTestCase) ... ERROR
#test_unicode (test.test_marshal.StringTestCase) ... ERROR
#test_code (test.test_marshal.CodeTestCase) ... ok
#test_dict (test.test_marshal.ContainerTestCase) ... ERROR
#test_list (test.test_marshal.ContainerTestCase) ... ERROR
#test_sets (test.test_marshal.ContainerTestCase) ... ERROR
#test_tuple (test.test_marshal.ContainerTestCase) ... ERROR
#test_exceptions (test.test_marshal.ExceptionTestCase) ... ok
#test_bug_5888452 (test.test_marshal.BugsTestCase) ... ok
#test_fuzz (test.test_marshal.BugsTestCase) ... ok
#test_loads_recursion (test.test_marshal.BugsTestCase) ... ok
#test_patch_873224 (test.test_marshal.BugsTestCase) ... ok
#test_recursion_limit (test.test_marshal.BugsTestCase) ... ok
#test_version_argument (test.test_marshal.BugsTestCase) ... ok

I'm wondering if the recusion limit on my build is getting set too low 
somehow.