Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
---
tests/test-iov.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/tests/test-iov.c b/tests/test-iov.c
index 7997fb5..477aad8 100644
--- a/tests/test-iov.c
+++ b/tests/test-iov.c
@@ -378,6 +378,43 @@ static void test_discard(void)
iov_free(iov, iov_cnt);
}
+static void test_get_ptr(void)
+{
+ struct iovec *iov;
+ unsigned int iov_cnt;
+ ssize_t offset;
+ size_t size;
+ void *ret;
+
+ /* Offset beyond end of vector */
+ iov_random(&iov, &iov_cnt);
+ size = iov_size(iov, iov_cnt);
+ ret = iov_get_ptr(iov, iov_cnt, size + 1, 1);
+ g_assert(ret == NULL);
+ iov_free(iov, iov_cnt);
+
+ /* Offset before beginning of vector */
+ iov_random(&iov, &iov_cnt);
+ size = iov_size(iov, iov_cnt);
+ ret = iov_get_ptr(iov, iov_cnt, -(size + 1), 1);
+ g_assert(ret == NULL);
+ iov_free(iov, iov_cnt);
+
+ /* Range spans elements */
+ iov_random(&iov, &iov_cnt);
+ ret = iov_get_ptr(iov, iov_cnt, iov->iov_len - 1, 2);
+ g_assert(ret == NULL);
+ iov_free(iov, iov_cnt);
+
+ /* Range within element */
+ iov_random(&iov, &iov_cnt);
+ offset = g_test_rand_int_range(1, iov->iov_len);
+ size = g_test_rand_int_range(1, iov->iov_len - offset + 1);
+ ret = iov_get_ptr(iov, iov_cnt, offset, size);
+ g_assert(ret == iov->iov_base + offset);
+ iov_free(iov, iov_cnt);
+}
+
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
@@ -385,5 +422,6 @@ int main(int argc, char **argv)
g_test_add_func("/basic/iov/from-to-buf", test_to_from_buf);
g_test_add_func("/basic/iov/io", test_io);
g_test_add_func("/basic/iov/discard", test_discard);
+ g_test_add_func("/basic/iov/get-ptr", test_get_ptr);
return g_test_run();
}
--
1.8.0
