[SciPy-Dev] Current test errors/failures with upcoming 1.9.

[Julian Taylor]

On 05.05.2014 19:49, Charles R Harris wrote:
> This is after the reversion to fix a long standing test failure. The
> first error is new to me, the second is the flaky qhull test, and the
> third looks like a precision problem.


the first two issues are unrelated to numpy.
the first is a know issue which seems to appear with newer distributions:
https://github.com/scipy/scipy/issues/2911
the issue states 32 bit only, but now I can also reproduce it in 64 bit.
Likely compiler optimization changes.

the second is also known and very old, can't find an issue but I know
its happens on 32 bit since quite a while

> 
>  
> ======================================================================
> ERROR: test_fitpack.TestSplder.test_kink
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
>     self.test(*self.arg)
>   File
> "/home/charris/.local/lib/python2.7/site-packages/scipy/interpolate/tests/test_fitpack.py",
> line 329, in test_kink
>     splder(spl2, 2)  # Should work
>   File
> "/home/charris/.local/lib/python2.7/site-packages/scipy/interpolate/fitpack.py",
> line 1198, in splder
>     "and is not differentiable %d times") % n)
> ValueError: The spline has internal repeated knots and is not
> differentiable 2 times
> 
> ======================================================================
> FAIL: test_qhull.TestUtilities.test_degenerate_barycentric_transforms
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
>     self.test(*self.arg)
>   File
> "/home/charris/.local/lib/python2.7/site-packages/numpy/testing/decorators.py",
> line 146, in skipper_func
>     return f(*args, **kwargs)
>   File
> "/home/charris/.local/lib/python2.7/site-packages/scipy/spatial/tests/test_qhull.py",
> line 296, in test_degenerate_barycentric_transforms
>     assert_(bad_count < 20, bad_count)
>   File
> "/home/charris/.local/lib/python2.7/site-packages/numpy/testing/utils.py",
> line 50, in assert_
>     raise AssertionError(smsg)
> AssertionError: 20
> 
> ======================================================================
> FAIL: test_skewtest (test_mstats_basic.TestCompareWithStats)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File
> "/home/charris/.local/lib/python2.7/site-packages/scipy/stats/tests/test_mstats_basic.py",
> line 972, in test_skewtest
>     assert_equal(r[0], rm[0])
>   File
> "/home/charris/.local/lib/python2.7/site-packages/numpy/ma/testutils.py", line
> 100, in assert_equal
>     raise AssertionError(msg)
> AssertionError:
> Items are not equal:
>  ACTUAL: 0.86656913902327259
>  DESIRED: 0.86656913902327182
> 
> ----------------------------------------------------------------------
> Ran 16601 tests in 106.443s
> 
> FAILED (KNOWNFAIL=277, SKIP=903, errors=1, failures=2)
> 
> Chuck
> 
> 
> 
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