Patch related to tests (GCI)

[Joan Creus]

Hi,
I'm a Google Code-In Student for Sympy and, while implementing a task (shuffling the order of the functions within a file, with the --random option), I found many mpmath-related errors given the fact that some functions set custom mp.dps or iv.dps values and did not set it back. With the "normal" function order it was no problem, but some weird things happened when shuffling.

I have fixed and it now seems to be working OK. The changes are minor and located in the tests/ directory. Please note that the .patch file was generated with git and had the "sympy" prefix in file names; I removed it and hope it'll work ok.

Joan Creus.

[Fredrik Johansson]

Hi Joan,

Thanks for the patch! I pushed it to the newly created mpmath
repository on github. I hope I got the attribution right.

Fredrik