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tests: add unit tests for lxc_safe_uint()

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Signed-off-by: Christian Brauner <christian.brauner@canonical.com>
This commit is contained in:
Christian Brauner 2016-09-06 17:41:34 +02:00
parent 6bc2eafe90
commit 57c7adc3c8
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GPG Key ID: 8EB056D53EECB12D
1 changed files with 30 additions and 0 deletions
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30
src/tests/lxc-test-utils.c
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@ -25,6 +25,7 @@
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <sched.h> #include <sched.h>
#include <limits.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
@ -220,6 +221,34 @@ non_test_error:
if (fret == EXIT_SUCCESS) if (fret == EXIT_SUCCESS)
return; return;
exit(fret); exit(fret);
void test_lxc_safe_uint(void)
{
int ret;
unsigned int n;
size_t len = /* 2^64 = 21 - 1 */ 21;
char uint_max[len];
ret = snprintf(uint_max, len, "%lu", (unsigned long)UINT_MAX + 1);
if (ret < 0 || (size_t)ret >= len) {
lxc_error("%s\n", "Failed to create string via snprintf().");
exit(EXIT_FAILURE);
}
lxc_test_assert_abort((0 == lxc_safe_uint("1234345", &n)) && n == 1234345);
lxc_test_assert_abort((0 == lxc_safe_uint(" 345", &n)) && n == 345);
lxc_test_assert_abort((-EINVAL == lxc_safe_uint(" g345", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint(" 3g45", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint(" 345g", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("g345", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("3g45", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("345g", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("g345 ", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("3g45 ", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("345g ", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint("g", &n)));
lxc_test_assert_abort((-EINVAL == lxc_safe_uint(" g345", &n)));
lxc_test_assert_abort((-ERANGE == lxc_safe_uint(uint_max, &n)));
} }
void test_lxc_string_replace(void) void test_lxc_string_replace(void)
@ -280,6 +309,7 @@ int main(int argc, char *argv[])
test_lxc_string_in_array(); test_lxc_string_in_array();
test_lxc_deslashify(); test_lxc_deslashify();
test_detect_ramfs_rootfs(); test_detect_ramfs_rootfs();
test_lxc_safe_uint();
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
} }