<
ralf.gommers@googlemail.com> wrote:
>
>
> On Wed, Dec 15, 2010 at 12:01 AM, Benjamin Root <
ben.root@ou.edu> wrote:
>>
>>
>> On Tue, Dec 14, 2010 at 6:38 AM, Ralf Gommers
>> <
ralf.gommers@googlemail.com> wrote:
>>>
>>>
>>> On Tue, Dec 14, 2010 at 12:43 AM, Benjamin Root <
ben.root@ou.edu> wrote:
>>>
>>> Hi Ben,
>>>>
>>>> Just did a clean rebuild (after a clean rebuild of numpy) and had two
>>>> errors in the tests:
>>>
>>> What platform are you on?
>>
>> I reran the tests on just this scipy.misc module, here is the output:
>>
>> >>> scipy.misc.test()
>> Running unit tests for scipy.misc
>> NumPy version 2.0.0.dev-799179d
>> NumPy is installed in /home/bvr/Programs/numpy/numpy
>> SciPy version 0.10.0.dev
>> SciPy is installed in /home/bvr/Programs/scipy/scipy
>> Python version 2.6.4 (r264:75706, Jun 4 2010, 18:20:16) [GCC 4.4.4
>> 20100503 (Red Hat 4.4.4-2)]
>> nose version 0.11.3
>> ...........F.....
>> ======================================================================
>> FAIL: test_imresize (test_pilutil.TestPILUtil)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>> File "/home/bvr/Programs/numpy/numpy/testing/decorators.py", line 146,
>> in skipper_func
>> return f(*args, **kwargs)
>> File "/home/bvr/Programs/scipy/scipy/misc/tests/test_pilutil.py", line
>> 28, in test_imresize
>> assert_equal(im1.shape,(11,22))
>> File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 251, in
>> assert_equal
>> assert_equal(actual[k], desired[k], 'item=%r\n%s' % (k,err_msg),
>> verbose)
>> File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 313, in
>> assert_equal
>> raise AssertionError(msg)
>> AssertionError:
>> Items are not equal:
>> item=0
>>
>> ACTUAL: 10
>> DESIRED: 11
>>
>> ----------------------------------------------------------------------
>> Ran 17 tests in 0.089s
>>
>> FAILED (failures=1)
>> <nose.result.TextTestResult run=17 errors=0 failures=1>
>>
>> Note, that I am still getting this error with the suggested addition of
>> "np.random.seed(12345678)" to scipy/misc/tests/test_pilutil.py. I tried it
>> both at line 20 (before the call to class TestPILUtil) and at line 24
>> (before the call to np.random.random() in test_imresize. I do not see how
>> setting the seed value for these tests would make any difference since they
>> are merely testing the resulting shape of the image after a resize, not the
>> values of the resized image itself.
>
> The seeding may not matter (I haven't actually looked in detail yet), but I
> thought I had seen this error pop up before, but not reproducibly. The
> imresize function does some interpolation, so the numerical values could
> matter. In that case seeding would help.
>>
>>
>>>>
>>>> ======================================================================
>>>> FAIL: test_imresize (test_pilutil.TestPILUtil)
>>>> ----------------------------------------------------------------------
>>>> Traceback (most recent call last):
>>>> File "/home/bvr/Programs/numpy/numpy/testing/decorators.py", line 146,
>>>> in skipper_func
>>>> return f(*args, **kwargs)
>>>> File "/home/bvr/Programs/scipy/scipy/misc/tests/test_pilutil.py", line
>>>> 25, in test_imresize
>>>> assert_equal(im1.shape,(11,22))
>>>> File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 251, in
>>>> assert_equal
>>>> assert_equal(actual[k], desired[k], 'item=%r\n%s' % (k,err_msg),
>>>> verbose)
>>>> File "/home/bvr/Programs/numpy/numpy/testing/utils.py", line 313, in
>>>> assert_equal
>>>> raise AssertionError(msg)
>>>> AssertionError:
>>>> Items are not equal:
>>>> item=0
>>>>
>>>> ACTUAL: 10
>>>> DESIRED: 11
>>>
>>> This test should be changed to use a fixed seed (add as a first line of
>>> the test "np.random.seed(12345678)"). Can you provide one that fails?
>>>
>>
>> Also, I am not sure what you mean by "Can you provide one that fails?".
>
> I meant a seed value that fails. This one does, that's all we need.