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/*
Copyright (C) 2023 Jean Kieffer
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 "acb_theta.h"
TEST_FUNCTION_START(acb_theta_transform_char, state)
{
slong iter;
/* Test: on trigonal symplectic matrices, a remains the same */
for (iter = 0; iter < 100 * flint_test_multiplier(); iter++)
{
slong g = 1 + n_randint(state, 10);
slong bits = 8;
fmpz_mat_t mat;
slong e;
ulong ab = n_randint(state, 1 << (2 * g));
ulong test;
slong j, k;
fmpz_mat_init(mat, 2 * g, 2 * g);
for (j = 0; j < g; j++)
{
for (k = j; k < g; k++)
{
fmpz_randtest(fmpz_mat_entry(mat, j, k), state, bits);
fmpz_set(fmpz_mat_entry(mat, k, j), fmpz_mat_entry(mat, j, k));
}
}
sp2gz_trig(mat, mat);
test = acb_theta_transform_char(&e, mat, ab);
if ((test >> g) != (ab >> g))
{
flint_printf("FAIL\n");
flint_printf("ab = %wd, test = %wd, matrix:\n", ab, test);
fmpz_mat_print_pretty(mat);
flint_abort();
}
fmpz_mat_clear(mat);
}
TEST_FUNCTION_END(state);
}