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-rw-r--r--tests/test-blob-buflen.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/test-blob-buflen.c b/tests/test-blob-buflen.c
new file mode 100644
index 0000000..45ea379
--- /dev/null
+++ b/tests/test-blob-buflen.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+
+#include "blobmsg.h"
+
+/* chunks of 64KB to be added to blob-buffer */
+#define BUFF_SIZE 0x10000
+/* exceed maximum blob buff-length */
+#define BUFF_CHUNKS (((BLOB_ATTR_LEN_MASK + 1) / BUFF_SIZE) + 1)
+
+int main(int argc, char **argv)
+{
+ int i;
+ static struct blob_buf buf;
+ blobmsg_buf_init(&buf);
+ int prev_len = buf.buflen;
+
+ for (i = 0; i < BUFF_CHUNKS; i++) {
+ struct blob_attr *attr = blob_new(&buf, 0, BUFF_SIZE);
+ if (!attr) {
+ fprintf(stderr, "SUCCESS: failed to allocate attribute\n");
+ break;
+ }
+ if (prev_len < buf.buflen) {
+ prev_len = buf.buflen;
+ continue;
+ }
+ fprintf(stderr, "ERROR: buffer length did not increase\n");
+ return -1;
+ }
+ return 0;
+}