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/* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only */
/* Copyright (c) 2023 Brett Sheffield <bacs@librecast.net> */
/* test 0142
* NULL mtree - build an mtree of a zero-length object
*/
#include "test.h"
#include "testdata.h"
#include <librecast/mtree.h>
#include <errno.h>
#define HEXDUMP
int main(void)
{
unsigned char hash[HASHSIZE] = "";
unsigned char *root;
char *data = NULL;
mtree_t tree = {0};
int rc;
test_name("mtree_build() - zero length data");
rc = mtree_init(&tree, 0);
test_assert(rc == 0, "mtree_init()");
rc = mtree_build(&tree, data, NULL);
test_assert(rc == 0, "mtree_build()");
#ifdef HEXDUMP
mtree_hexdump(&tree, stderr);
#endif
rc = mtree_verify(&tree);
test_assert(rc == 0, "mtree_verify()");
/* fetch root node, ensure it is all zeros */
root = mtree_nnode(&tree, 0);
if (!test_assert(root != NULL, "mtree_nnode() returned root")) goto err_free_tree;
test_assert(!memcmp(root, hash, HASHSIZE), "root hash is all zeros");
/* ensure max and min functions return 0 (root) */
test_assert(mtree_subtree_data_min(tree.base, 0) == 0,
"mtree_subtree_data_min(base, 0) is zero");
test_assert(mtree_subtree_data_max(tree.base, 0) == 0,
"mtree_subtree_data_max(base, 0) is zero");
err_free_tree:
mtree_free(&tree);
return test_status;
}
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