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/*
Copyright (C) 2013 Fredrik Johansson
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 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "test_helpers.h"
#include "fmpz.h"
#include "fmpz_poly.h"
TEST_FUNCTION_START(fmpz_poly_eta_qexp, state)
{
int i;
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz_poly_t a, b;
slong e, n;
fmpz_poly_init(a);
fmpz_poly_init(b);
e = n_randint(state, 100) - 50;
n = n_randint(state, 250);
fmpz_poly_randtest(a, state, n_randint(state, 250),
1 + n_randint(state, 100));
fmpz_poly_eta_qexp(a, e, n);
fmpz_poly_eta_qexp(b, 1, n + n_randint(state, 10));
if (n == 0)
{
fmpz_poly_zero(b);
}
else
{
if (e >= 0)
{
fmpz_poly_pow_trunc(b, b, e, n);
}
else
{
fmpz_poly_inv_series(b, b, n);
fmpz_poly_pow_trunc(b, b, -e, n);
}
}
if (!fmpz_poly_equal(a, b))
{
flint_printf("FAIL (powering):\n");
flint_printf("e = %wd, n = %wd\n\n", e, n);
fmpz_poly_print(a), flint_printf("\n\n");
fmpz_poly_print(b), flint_printf("\n\n");
fflush(stdout);
flint_abort();
}
fmpz_poly_clear(a);
fmpz_poly_clear(b);
}
TEST_FUNCTION_END(state);
}