On Wed, Mar 5, 2008 at 3:16 PM, David Joyner <[EMAIL PROTECTED]> wrote:
>
>  On Wed, Mar 5, 2008 at 6:14 PM, William Stein <[EMAIL PROTECTED]> wrote:
>  >
>  >  On Wed, Mar 5, 2008 at 3:13 PM, David Joyner <[EMAIL PROTECTED]> wrote:
>  >  >
>  >  >  On an amd64 bit ubuntu 7.04 linux machine:
>  >  >
>  >  >  The following tests failed:
>  >  >
>  >  >
>  >  >         sage -t  devel/sage-main/sage/functions/orthogonal_polys.py
>  >  >         sage -t  devel/sage-main/sage/rings/polynomial/groebner_fan.py
>  >  >         sage -t  devel/sage-main/sage/matrix/matrix_symbolic_dense.pyx
>  >  >
>  >  >         sage -t  devel/sage-main/sage/plot/plot.py
>  >  >
>  >  >  All but the first one are mentioned elsewhere in this thread. I reran
>  >  >  the first one an all tests passed:
>  >  >
>  >  >  [EMAIL PROTECTED]:~/wdj/sagefiles/sage-2.10.3.rc2$ ./sage -t
>  >  >  
> "/home/wdj/wdj/sagefiles/sage-2.10.3.rc1/devel/sage/sage/functions/orthogonal_polys.py"
>  >  >  sage -t  devel/sage-matgp/sage/functions/orthogonal_polys.py
>  >  >          [4.2 s]
>  >  >
>  >  >  ----------------------------------------------------------------------
>  >  >  All tests passed!
>  >  >  Total time for all tests: 4.2 seconds
>  >
>  >  In the log for this failing the first time SAGE_ROOT/test.log, exactly 
> what
>  >  does the error output say?
>
>
>  sage -t  devel/sage-main/sage/functions/orthogonal_polys.py
>  **********************************************************************
>  File "orthogonal_polys.py", line 365:
>     sage: gen_laguerre(3,0,x)
>  Expected:
>     -1/6*x^3 + 3/2*x^2 - 3*x + 1
>  Got:
>     540441855
>  **********************************************************************
>  1 items had failures:
>    1 of   6 in __main__.example_3
>  ***Test Failed*** 1 failures.

That looks very much like a weird maxima/pexpect synchryonization
issue.  i.e., the sort of thing that "should" never happen.  I suspect
that since  540441855 looks like a number that could come up in
the synchronization code.  If I change the synchronizer to be
a number surrounded by SAGE_SYNC say, then at least Sage would
notice that something went seriously wrong and throw an error (which
would be way better than getting a wrong result).

William

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