mirror of https://gitee.com/openkylin/qemu.git
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* QEMU buffer_is_zero test
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*
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* Copyright (c) 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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static char buffer[8 * 1024 * 1024];
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static void test_1(void)
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{
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size_t s, a, o;
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/* Basic positive test. */
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g_assert(buffer_is_zero(buffer, sizeof(buffer)));
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/* Basic negative test. */
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buffer[sizeof(buffer) - 1] = 1;
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g_assert(!buffer_is_zero(buffer, sizeof(buffer)));
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buffer[sizeof(buffer) - 1] = 0;
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/* Positive tests for size and alignment. */
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for (a = 1; a <= 64; a++) {
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for (s = 1; s < 1024; s++) {
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buffer[a - 1] = 1;
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buffer[a + s] = 1;
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g_assert(buffer_is_zero(buffer + a, s));
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buffer[a - 1] = 0;
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buffer[a + s] = 0;
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}
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}
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/* Negative tests for size, alignment, and the offset of the marker. */
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for (a = 1; a <= 64; a++) {
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for (s = 1; s < 1024; s++) {
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for (o = 0; o < s; ++o) {
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buffer[a + o] = 1;
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g_assert(!buffer_is_zero(buffer + a, s));
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buffer[a + o] = 0;
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}
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}
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}
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}
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static void test_2(void)
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{
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if (g_test_perf()) {
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test_1();
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} else {
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do {
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test_1();
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} while (test_buffer_is_zero_next_accel());
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}
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}
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int main(int argc, char **argv)
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{
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g_test_init(&argc, &argv, NULL);
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g_test_add_func("/cutils/bufferiszero", test_2);
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return g_test_run();
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}
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