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test(buffer): add unit tests for ssh_buffer_dup function

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Signed-off-by: Praneeth Sarode <praneethsarode@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
Praneeth Sarode
2025-09-24 20:37:36 +05:30
committed by Jakub Jelen
parent 2f77727796
commit 8541b6584f
1 changed files with 68 additions and 0 deletions
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68
tests/unittests/torture_buffer.c
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@@ -6,6 +6,8 @@
#define DEBUG_BUFFER
#include "buffer.c"
#include <string.h>
#define LIMIT (8*1024*1024)
static int setup(void **state) {
@@ -300,6 +302,69 @@ static void torture_ssh_buffer_bignum(void **state)
SSH_BUFFER_FREE(buffer);
}
static void torture_ssh_buffer_dup(void **state)
{
ssh_buffer buffer = *state;
ssh_buffer dup_buffer = NULL;
ssh_buffer null_buffer = NULL;
const char *test_data = "test data";
size_t test_data_len = strlen(test_data);
int rc;
/* test NULL buffer */
dup_buffer = ssh_buffer_dup(NULL);
assert_null(dup_buffer);
/* test empty buffer */
dup_buffer = ssh_buffer_dup(buffer);
assert_non_null(dup_buffer);
assert_int_equal(ssh_buffer_get_len(dup_buffer), 0);
assert_true(dup_buffer->secure);
SSH_BUFFER_FREE(dup_buffer);
/* test buffer with data */
rc = ssh_buffer_add_data(buffer, test_data, test_data_len);
assert_int_equal(rc, SSH_OK);
dup_buffer = ssh_buffer_dup(buffer);
assert_non_null(dup_buffer);
assert_int_equal(ssh_buffer_get_len(dup_buffer), test_data_len);
assert_memory_equal(ssh_buffer_get(dup_buffer), test_data, test_data_len);
assert_true(dup_buffer->secure);
/* test independence of buffers - modify original buffer */
rc = ssh_buffer_add_data(buffer, " more data", 10);
assert_int_equal(rc, SSH_OK);
assert_int_equal(ssh_buffer_get_len(buffer), test_data_len + 10);
assert_int_equal(ssh_buffer_get_len(dup_buffer), test_data_len);
/* test independence of buffers - modify duplicated buffer */
rc = ssh_buffer_add_data(dup_buffer, " different", 10);
assert_int_equal(rc, SSH_OK);
assert_int_equal(ssh_buffer_get_len(dup_buffer), test_data_len + 10);
assert_int_equal(ssh_buffer_get_len(buffer), test_data_len + 10);
assert_memory_not_equal(ssh_buffer_get(buffer),
ssh_buffer_get(dup_buffer),
test_data_len + 10);
SSH_BUFFER_FREE(dup_buffer);
/* test duplicating non-secure buffer */
null_buffer = ssh_buffer_new();
assert_non_null(null_buffer);
rc = ssh_buffer_add_data(null_buffer, "non-secure data", 15);
assert_int_equal(rc, SSH_OK);
dup_buffer = ssh_buffer_dup(null_buffer);
assert_non_null(dup_buffer);
assert_int_equal(ssh_buffer_get_len(dup_buffer), 15);
assert_memory_equal(ssh_buffer_get(dup_buffer), "non-secure data", 15);
assert_false(dup_buffer->secure);
SSH_BUFFER_FREE(dup_buffer);
SSH_BUFFER_FREE(null_buffer);
}
int torture_run_tests(void) {
int rc;
struct CMUnitTest tests[] = {
@@ -326,6 +391,9 @@ int torture_run_tests(void) {
setup,
teardown),
cmocka_unit_test(torture_ssh_buffer_bignum),
cmocka_unit_test_setup_teardown(torture_ssh_buffer_dup,
setup,
teardown),
};
ssh_init();