+static void test_hostname_is_valid(void) {
+ assert(hostname_is_valid("foobar"));
+ assert(hostname_is_valid("foobar.com"));
+ assert(!hostname_is_valid("fööbar"));
+ assert(!hostname_is_valid(""));
+ assert(!hostname_is_valid("."));
+ assert(!hostname_is_valid(".."));
+ assert(!hostname_is_valid("foobar."));
+ assert(!hostname_is_valid(".foobar"));
+ assert(!hostname_is_valid("foo..bar"));
+ assert(!hostname_is_valid("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"));
+}
+
+static void test_u64log2(void) {
+ assert(u64log2(0) == 0);
+ assert(u64log2(8) == 3);
+ assert(u64log2(9) == 3);
+ assert(u64log2(15) == 3);
+ assert(u64log2(16) == 4);
+ assert(u64log2(1024*1024) == 20);
+ assert(u64log2(1024*1024+5) == 20);
+}
+
+static void test_get_process_comm(void) {
+ struct stat st;
+ _cleanup_free_ char *a = NULL, *c = NULL, *d = NULL, *f = NULL, *i = NULL;
+ unsigned long long b;
+ pid_t e;
+ uid_t u;
+ gid_t g;
+ dev_t h;
+ int r;
+
+ if (stat("/proc/1/comm", &st) == 0) {
+ assert_se(get_process_comm(1, &a) >= 0);
+ log_info("pid1 comm: '%s'", a);
+ } else {
+ log_warning("/proc/1/comm does not exist.");
+ }
+
+ assert_se(get_starttime_of_pid(1, &b) >= 0);
+ log_info("pid1 starttime: '%llu'", b);
+
+ assert_se(get_process_cmdline(1, 0, true, &c) >= 0);
+ log_info("pid1 cmdline: '%s'", c);
+
+ assert_se(get_process_cmdline(1, 8, false, &d) >= 0);
+ log_info("pid1 cmdline truncated: '%s'", d);
+
+ assert_se(get_parent_of_pid(1, &e) >= 0);
+ log_info("pid1 ppid: '%llu'", (unsigned long long) e);
+ assert_se(e == 0);
+
+ assert_se(is_kernel_thread(1) == 0);
+
+ r = get_process_exe(1, &f);
+ assert_se(r >= 0 || r == -EACCES);
+ log_info("pid1 exe: '%s'", strna(f));
+
+ assert_se(get_process_uid(1, &u) == 0);
+ log_info("pid1 uid: '%llu'", (unsigned long long) u);
+ assert_se(u == 0);
+
+ assert_se(get_process_gid(1, &g) == 0);
+ log_info("pid1 gid: '%llu'", (unsigned long long) g);
+ assert_se(g == 0);
+
+ assert(get_ctty_devnr(1, &h) == -ENOENT);
+
+ getenv_for_pid(1, "PATH", &i);
+ log_info("pid1 $PATH: '%s'", strna(i));
+}
+
+static void test_protect_errno(void) {
+ errno = 12;
+ {
+ PROTECT_ERRNO;
+ errno = 11;
+ }
+ assert(errno == 12);
+}
+
+static void test_parse_bytes(void) {
+ off_t bytes;
+
+ assert_se(parse_bytes("111", &bytes) == 0);
+ assert_se(bytes == 111);
+
+ assert_se(parse_bytes(" 112 B", &bytes) == 0);
+ assert_se(bytes == 112);
+
+ assert_se(parse_bytes("3 K", &bytes) == 0);
+ assert_se(bytes == 3*1024);
+
+ assert_se(parse_bytes(" 4 M 11K", &bytes) == 0);
+ assert_se(bytes == 4*1024*1024 + 11 * 1024);
+
+ assert_se(parse_bytes("3B3G", &bytes) == 0);
+ assert_se(bytes == 3ULL*1024*1024*1024 + 3);
+
+ assert_se(parse_bytes("3B3G4T", &bytes) == 0);
+ assert_se(bytes == (4ULL*1024 + 3)*1024*1024*1024 + 3);
+
+ assert_se(parse_bytes("12P", &bytes) == 0);
+ assert_se(bytes == 12ULL * 1024*1024*1024*1024*1024);
+
+ assert_se(parse_bytes("3E 2P", &bytes) == 0);
+ assert_se(bytes == (3 * 1024 + 2ULL) * 1024*1024*1024*1024*1024);
+
+ assert_se(parse_bytes("12X", &bytes) == -EINVAL);
+
+ assert_se(parse_bytes("1024E", &bytes) == -ERANGE);
+ assert_se(parse_bytes("-1", &bytes) == -ERANGE);
+ assert_se(parse_bytes("-1024E", &bytes) == -ERANGE);
+
+ assert_se(parse_bytes("-1024P", &bytes) == -ERANGE);
+
+ assert_se(parse_bytes("-10B 20K", &bytes) == -ERANGE);
+}
+
+static void test_strextend(void) {
+ _cleanup_free_ char *str = strdup("0123");
+ strextend(&str, "456", "78", "9", NULL);
+ assert_se(streq(str, "0123456789"));
+}
+
+static void test_strrep(void) {
+ _cleanup_free_ char *one, *three, *zero;
+ one = strrep("waldo", 1);
+ three = strrep("waldo", 3);
+ zero = strrep("waldo", 0);
+
+ assert_se(streq(one, "waldo"));
+ assert_se(streq(three, "waldowaldowaldo"));
+ assert_se(streq(zero, ""));
+}
+
+static void test_split_pair(void) {
+ _cleanup_free_ char *a = NULL, *b = NULL;
+
+ assert_se(split_pair("", "", &a, &b) == -EINVAL);
+ assert_se(split_pair("foo=bar", "", &a, &b) == -EINVAL);
+ assert_se(split_pair("", "=", &a, &b) == -EINVAL);
+ assert_se(split_pair("foo=bar", "=", &a, &b) >= 0);
+ assert_se(streq(a, "foo"));
+ assert_se(streq(b, "bar"));
+ free(a);
+ free(b);
+ assert_se(split_pair("==", "==", &a, &b) >= 0);
+ assert_se(streq(a, ""));
+ assert_se(streq(b, ""));
+ free(a);
+ free(b);
+
+ assert_se(split_pair("===", "==", &a, &b) >= 0);
+ assert_se(streq(a, ""));
+ assert_se(streq(b, "="));
+}
+
+static void test_fstab_node_to_udev_node(void) {
+ char *n;
+
+ n = fstab_node_to_udev_node("LABEL=applé/jack");
+ puts(n);
+ assert_se(streq(n, "/dev/disk/by-label/applé\\x2fjack"));
+ free(n);
+
+ n = fstab_node_to_udev_node("PARTLABEL=pinkié pie");
+ puts(n);
+ assert_se(streq(n, "/dev/disk/by-partlabel/pinkié\\x20pie"));
+ free(n);
+
+ n = fstab_node_to_udev_node("UUID=037b9d94-148e-4ee4-8d38-67bfe15bb535");
+ puts(n);
+ assert_se(streq(n, "/dev/disk/by-uuid/037b9d94-148e-4ee4-8d38-67bfe15bb535"));
+ free(n);
+
+ n = fstab_node_to_udev_node("PARTUUID=037b9d94-148e-4ee4-8d38-67bfe15bb535");
+ puts(n);
+ assert_se(streq(n, "/dev/disk/by-partuuid/037b9d94-148e-4ee4-8d38-67bfe15bb535"));
+ free(n);
+
+
+ n = fstab_node_to_udev_node("PONIES=awesome");
+ puts(n);
+ assert_se(streq(n, "PONIES=awesome"));
+ free(n);
+
+ n = fstab_node_to_udev_node("/dev/xda1");
+ puts(n);
+ assert_se(streq(n, "/dev/xda1"));
+ free(n);
+}
+
+static void test_get_files_in_directory(void) {
+ _cleanup_strv_free_ char **l = NULL, **t = NULL;
+
+ assert_se(get_files_in_directory("/tmp", &l) >= 0);
+ assert_se(get_files_in_directory(".", &t) >= 0);
+ assert_se(get_files_in_directory(".", NULL) >= 0);
+}
+
+static void test_in_set(void) {
+ assert_se(IN_SET(1, 1));
+ assert_se(IN_SET(1, 1, 2, 3, 4));
+ assert_se(IN_SET(2, 1, 2, 3, 4));
+ assert_se(IN_SET(3, 1, 2, 3, 4));
+ assert_se(IN_SET(4, 1, 2, 3, 4));
+ assert_se(!IN_SET(0, 1));
+ assert_se(!IN_SET(0, 1, 2, 3, 4));
+}
+
+static void test_writing_tmpfile(void) {
+ char name[] = "/tmp/test-systemd_writing_tmpfile.XXXXXX";
+ _cleanup_free_ char *contents;
+ size_t size;
+ int fd, r;
+
+ struct iovec iov[3];
+ IOVEC_SET_STRING(iov[0], "abc\n");
+ IOVEC_SET_STRING(iov[1], ALPHANUMERICAL "\n");
+ IOVEC_SET_STRING(iov[2], "");
+
+ fd = mkostemp_safe(name, O_RDWR|O_CLOEXEC);
+ printf("tmpfile: %s", name);
+
+ r = writev(fd, iov, 3);
+ assert(r >= 0);
+
+ r = read_full_file(name, &contents, &size);
+ assert(r == 0);
+ printf("contents: %s", contents);
+ assert(streq(contents, "abc\n" ALPHANUMERICAL "\n"));
+}
+