[SSSD] [PATCH] Fix sysdb tests

[Jakub Hrozek]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Couple of changes to sysdb tests to reflect latest changes:
* we're always in MPG domains, so don't set GID, let sysdb choose it
automatically
* we're always in MPG domains, so GIDs and UIDs cannot overlap
* test the difference between sysdb_add_user and sysdb_store_user -
store allows setting attributes for existing users (function
test_sysdb_store_user_existing())

Fixes #129

	Jakub
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.9 (GNU/Linux)
> Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAkqOoPMACgkQHsardTLnvCVMhgCgsM5KU3z21no1NOXBcRPVRLR3
> AOgAn1Hq7BLUQWEtHbXrIZiR9WTP3zu3
> =J3Iy
> -----END PGP SIGNATURE-----