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Diffstat (limited to 'tests/unit/test-bufferiszero.c')
-rw-r--r-- | tests/unit/test-bufferiszero.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/unit/test-bufferiszero.c b/tests/unit/test-bufferiszero.c new file mode 100644 index 0000000000..e45fd31804 --- /dev/null +++ b/tests/unit/test-bufferiszero.c @@ -0,0 +1,78 @@ +/* + * 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 2.1 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(); +} |