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/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2011 Sebastian Pancratz
Copyright (C) 2012 Andres Goens
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#include "fq.h"
void
fq_ctx_randtest(fq_ctx_t ctx, flint_rand_t state)
{
fmpz_mod_poly_t modulus;
fmpz_t p, x;
slong d;
fmpz_init(p);
fmpz_set_ui(p, n_randprime(state, 2 + n_randint(state, 6), 1));
d = n_randint(state, 10) + 1;
fq_ctx_init_conway(ctx, p, d, "a");
fmpz_clear(p);
/* Test non-monic modulus */
if (n_randint(state, 2))
{
fmpz_init_set(x, p);
fmpz_sub_ui(x, x, 1);
fmpz_mod_poly_init(modulus, p);
fmpz_mod_poly_set(modulus, ctx->modulus);
fmpz_randm(x, state, x);
fmpz_add_ui(x, x, 1);
fmpz_mod_poly_scalar_mul_fmpz(modulus, modulus, x);
fq_ctx_clear(ctx);
fq_ctx_init_modulus(ctx, modulus, "a");
fmpz_mod_poly_clear(modulus);
fmpz_clear(x);
}
}
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