8000 FAIL: test_buffer_hashlib (test_regression.TestRegression) (Trac #1326) · Issue #1924 · numpy/numpy · GitHub
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FAIL: test_buffer_hashlib (test_regression.TestRegression) (Trac #1326) #1924

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thouis opened this issue Oct 19, 2012 · 4 comments
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FAIL: test_buffer_hashlib (test_regression.TestRegression) (Trac #1326) #1924

thouis opened this issue Oct 19, 2012 · 4 comments
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00 - Bug component: Other

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@thouis
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thouis commented Oct 19, 2012

Original ticket http://projects.scipy.org/numpy/ticket/1326 on 2009-12-11 by @stsci-sienkiew, assigned to unknown.

======================================================================
FAIL: test_buffer_hashlib (test_regression.TestRegression)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/stsci/pyssgdev/2.5.4/numpy/core/tests/test_regression.py", line 1255, in test_buffer_hashlib
    assert_equal(md5(x).hexdigest(), '2a1dd1e1e59d0a384c26951e316cd7e6')
  File "/usr/stsci/pyssgdev/2.5.4/numpy/testing/utils.py", line 305, in assert_equal
    raise AssertionError(msg)
AssertionError: 
Items are not equal:
 ACTUAL: '1264d4a9f74dc462700fd163e3ff09a6'
 DESIRED: '2a1dd1e1e59d0a384c26951e316cd7e6'

----------------------------------------------------------------------

Python 2.5.4, 32 bit executable

Solaris 8

Not on Red Hat Enterprise Linux, 4 / 32 bit. Not on RHE 4 / 64 bit. Not on RHE 5 / 64 bit. Not on Mac OSX Leopard, 32 bit python.

(That is, failing on the big-endian SPARC, passing on a bunch of x86 systems.)

NumPy version 1.5.0.dev7996
@thouis
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thouis commented Oct 19, 2012

@drnlm wrote on 2010-01-20

Given that:

x = np.array([1,2,3], dtype=np.dtype('<i4'))
md5.new(x).hexdigest()
'2a1dd1e1e59d0a384c26951e316cd7e6'

x = np.array([1,2,3], dtype=np.dtype('>i4'))
md5.new(x).hexdigest()
'1264d4a9f74dc462700fd163e3ff09a6'

It really looks like the test should specify the correct byte order.

@thouis
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thouis commented Oct 19, 2012

@drnlm wrote on 2010-01-20

Trivial patch using np.dtype('<i4')

@thouis
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thouis commented Oct 19, 2012

Attachment added by @drnlm on 2010-01-21: 1326_patch.diff

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thouis commented Oct 19, 2012

@charris wrote on 2010-02-14

Patch applied in r8110.

@thouis thouis closed this as completed Oct 19, 2012
@claumann claumann mentioned this issue Sep 17, 2011
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