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/*
Copyright (C) 2011 Sebastian Pancratz
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 "fmpq_mat.h"
TEST_FUNCTION_START(fmpq_mat_one, state)
{
int i, result;
/* 1 * A == A * 1 == A */
for (i = 0; i < 100 * flint_test_multiplier(); i++)
{
fmpq_mat_t A, B, C, I;
slong n, bits;
n = n_randint(state, 10);
bits = 1 + n_randint(state, 100);
fmpq_mat_init(A, n, n);
fmpq_mat_init(B, n, n);
fmpq_mat_init(C, n, n);
fmpq_mat_init(I, n, n);
fmpq_mat_randtest(A, state, bits);
fmpq_mat_one(I);
fmpq_mat_mul(B, I, A);
fmpq_mat_mul(C, A, I);
result = fmpq_mat_equal(A, B) && fmpq_mat_equal(A, C);
if (!result)
{
flint_printf("FAIL:\n");
flint_printf("A:\n");
fmpq_mat_print(A);
flint_printf("B:\n");
fmpq_mat_print(B);
flint_printf("C:\n");
fmpq_mat_print(C);
flint_printf("I:\n");
fmpq_mat_print(I);
fflush(stdout);
flint_abort();
}
fmpq_mat_clear(A);
fmpq_mat_clear(B);
fmpq_mat_clear(C);
fmpq_mat_clear(I);
}
TEST_FUNCTION_END(state);
}