/*
    Copyright (C) 2015 Vladimir Glazachev

    This file is part of FLINT.

    FLINT is free software: you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License (LGPL) as published
    by the Free Software Foundation; either version 2.1 of the License, or
    (at your option) any later version.  See <https://www.gnu.org/licenses/>.
*/

#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "aprcl.h"

int main(void)
{
    int i;
    FLINT_TEST_INIT(state);
   
    flint_printf("unity_zp_is_unity....");
    fflush(stdout);

    for (i = 0; i < 10 * flint_test_multiplier(); i++)
    {
        ulong p, exp;
        fmpz_t n;
        unity_zp f;
        ulong ind;

        p = n_randprime(state, 2 + n_randint(state, 4), 0);
        exp =  n_randint(state, 5);        
        while (exp == 0)
            exp = n_randint(state, 5);

        fmpz_init(n);
        fmpz_randtest_unsigned(n, state, 200);
        while (fmpz_equal_ui(n, 0) != 0)
            fmpz_randtest_unsigned(n, state, 200);

        unity_zp_init(f, p, 1, n);

        ind = n_randint(state, n_pow(p, exp));

        unity_zp_coeff_set_ui(f, ind, 1);

        if (unity_zp_is_unity(f) < 0)
        {
            flint_printf("FAIL\n");
            abort();
        }

        fmpz_clear(n);
        unity_zp_clear(f);
    }

    FLINT_TEST_CLEANUP(state);
    
    flint_printf("PASS\n");
    return 0;
}