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/*
* QEMU buffer_is_zero test
*
* Copyright (c) 2016 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "qemu/cutils.h"
static char buffer[8 * 1024 * 1024];
static void test_1(void)
{
size_t s, a, o;
/* Basic positive test. */
g_assert(buffer_is_zero(buffer, sizeof(buffer)));
/* Basic negative test. */
buffer[sizeof(buffer) - 1] = 1;
g_assert(!buffer_is_zero(buffer, sizeof(buffer)));
buffer[sizeof(buffer) - 1] = 0;
/* Positive tests for size and alignment. */
for (a = 1; a <= 64; a++) {
for (s = 1; s < 1024; s++) {
buffer[a - 1] = 1;
buffer[a + s] = 1;
g_assert(buffer_is_zero(buffer + a, s));
buffer[a - 1] = 0;
buffer[a + s] = 0;
}
}
/* Negative tests for size, alignment, and the offset of the marker. */
for (a = 1; a <= 64; a++) {
for (s = 1; s < 1024; s++) {
for (o = 0; o < s; ++o) {
buffer[a + o] = 1;
g_assert(!buffer_is_zero(buffer + a, s));
buffer[a + o] = 0;
}
}
}
}
static void test_2(void)
{
if (g_test_perf()) {
test_1();
} else {
do {
test_1();
} while (test_buffer_is_zero_next_accel());
}
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/cutils/bufferiszero", test_2);
return g_test_run();
}
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