src/test/test-path-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Zbigniew Jędrzejewski-Szmek
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <stdio.h>
  21 #include <sys/mount.h>
  22 #include <unistd.h>
  23
  24 #include "alloc-util.h"
  25 #include "fd-util.h"
  26 #include "macro.h"
  27 #include "mount-util.h"
  28 #include "path-util.h"
  29 #include "rm-rf.h"
  30 #include "string-util.h"
  31 #include "strv.h"
  32 #include "util.h"
  33
  34 #define test_path_compare(a, b, result) {                 \
  35                 assert_se(path_compare(a, b) == result);  \
  36                 assert_se(path_compare(b, a) == -result); \
  37                 assert_se(path_equal(a, b) == !result);   \
  38                 assert_se(path_equal(b, a) == !result);   \
  39         }
  40
  41 static void test_path(void) {
  42         _cleanup_close_ int fd = -1;
  43
  44         test_path_compare("/goo", "/goo", 0);
  45         test_path_compare("/goo", "/goo", 0);
  46         test_path_compare("//goo", "/goo", 0);
  47         test_path_compare("//goo/////", "/goo", 0);
  48         test_path_compare("goo/////", "goo", 0);
  49
  50         test_path_compare("/goo/boo", "/goo//boo", 0);
  51         test_path_compare("//goo/boo", "/goo/boo//", 0);
  52
  53         test_path_compare("/", "///", 0);
  54
  55         test_path_compare("/x", "x/", 1);
  56         test_path_compare("x/", "/", -1);
  57
  58         test_path_compare("/x/./y", "x/y", 1);
  59         test_path_compare("x/.y", "x/y", -1);
  60
  61         test_path_compare("foo", "/foo", -1);
  62         test_path_compare("/foo", "/foo/bar", -1);
  63         test_path_compare("/foo/aaa", "/foo/b", -1);
  64         test_path_compare("/foo/aaa", "/foo/b/a", -1);
  65         test_path_compare("/foo/a", "/foo/aaa", -1);
  66         test_path_compare("/foo/a/b", "/foo/aaa", -1);
  67
  68         assert_se(path_is_absolute("/"));
  69         assert_se(!path_is_absolute("./"));
  70
  71         assert_se(is_path("/dir"));
  72         assert_se(is_path("a/b"));
  73         assert_se(!is_path("."));
  74
  75         assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
  76         assert_se(streq(basename("/aa///.file"), ".file"));
  77         assert_se(streq(basename("/aa///file..."), "file..."));
  78         assert_se(streq(basename("file.../"), ""));
  79
  80         fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
  81         assert_se(fd >= 0);
  82         assert_se(fd_is_mount_point(fd, "/", 0) > 0);
  83
  84         {
  85                 char p1[] = "aaa/bbb////ccc";
  86                 char p2[] = "//aaa/.////ccc";
  87                 char p3[] = "/./";
  88
  89                 assert_se(path_equal(path_kill_slashes(p1), "aaa/bbb/ccc"));
  90                 assert_se(path_equal(path_kill_slashes(p2), "/aaa/./ccc"));
  91                 assert_se(path_equal(path_kill_slashes(p3), "/./"));
  92         }
  93
  94         assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
  95         assert_se(PATH_IN_SET("/bin", "/bin"));
  96         assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
  97         assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
  98         assert_se(!PATH_IN_SET("/", "/abc", "/def"));
  99
 100         assert_se(path_equal_ptr(NULL, NULL));
 101         assert_se(path_equal_ptr("/a", "/a"));
 102         assert_se(!path_equal_ptr("/a", "/b"));
 103         assert_se(!path_equal_ptr("/a", NULL));
 104         assert_se(!path_equal_ptr(NULL, "/a"));
 105 }
 106
 107 static void test_path_equal_root(void) {
 108         /* Nail down the details of how path_equal("/", ...) works. */
 109
 110         assert_se(path_equal("/", "/"));
 111         assert_se(path_equal("/", "//"));
 112
 113         assert_se(!path_equal("/", "/./"));
 114         assert_se(!path_equal("/", "/../"));
 115
 116         assert_se(!path_equal("/", "/.../"));
 117
 118         /* Make sure that files_same works as expected. */
 119
 120         assert_se(files_same("/", "/") > 0);
 121         assert_se(files_same("/", "//") > 0);
 122
 123         assert_se(files_same("/", "/./") > 0);
 124         assert_se(files_same("/", "/../") > 0);
 125
 126         assert_se(files_same("/", "/.../") == -ENOENT);
 127
 128         /* The same for path_equal_or_files_same. */
 129
 130         assert_se(path_equal_or_files_same("/", "/"));
 131         assert_se(path_equal_or_files_same("/", "//"));
 132
 133         assert_se(path_equal_or_files_same("/", "/./"));
 134         assert_se(path_equal_or_files_same("/", "/../"));
 135
 136         assert_se(!path_equal_or_files_same("/", "/.../"));
 137 }
 138
 139 static void test_find_binary(const char *self) {
 140         char *p;
 141
 142         assert_se(find_binary("/bin/sh", &p) == 0);
 143         puts(p);
 144         assert_se(path_equal(p, "/bin/sh"));
 145         free(p);
 146
 147         assert_se(find_binary(self, &p) == 0);
 148         puts(p);
 149         /* libtool might prefix the binary name with "lt-" */
 150         assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
 151         assert_se(path_is_absolute(p));
 152         free(p);
 153
 154         assert_se(find_binary("sh", &p) == 0);
 155         puts(p);
 156         assert_se(endswith(p, "/sh"));
 157         assert_se(path_is_absolute(p));
 158         free(p);
 159
 160         assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
 161         assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 162 }
 163
 164 static void test_prefixes(void) {
 165         static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
 166         unsigned i;
 167         char s[PATH_MAX];
 168         bool b;
 169
 170         i = 0;
 171         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 172                 log_error("---%s---", s);
 173                 assert_se(streq(s, values[i++]));
 174         }
 175         assert_se(values[i] == NULL);
 176
 177         i = 1;
 178         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 179                 log_error("---%s---", s);
 180                 assert_se(streq(s, values[i++]));
 181         }
 182         assert_se(values[i] == NULL);
 183
 184         i = 0;
 185         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 186                 assert_se(streq(s, values[i++]));
 187         assert_se(values[i] == NULL);
 188
 189         i = 1;
 190         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 191                 assert_se(streq(s, values[i++]));
 192         assert_se(values[i] == NULL);
 193
 194         PATH_FOREACH_PREFIX(s, "////")
 195                 assert_not_reached("Wut?");
 196
 197         b = false;
 198         PATH_FOREACH_PREFIX_MORE(s, "////") {
 199                 assert_se(!b);
 200                 assert_se(streq(s, ""));
 201                 b = true;
 202         }
 203         assert_se(b);
 204
 205         PATH_FOREACH_PREFIX(s, "")
 206                 assert_not_reached("wut?");
 207
 208         b = false;
 209         PATH_FOREACH_PREFIX_MORE(s, "") {
 210                 assert_se(!b);
 211                 assert_se(streq(s, ""));
 212                 b = true;
 213         }
 214 }
 215
 216 static void test_path_join(void) {
 217
 218 #define test_join(root, path, rest, expected) {  \
 219                 _cleanup_free_ char *z = NULL;   \
 220                 z = path_join(root, path, rest); \
 221                 assert_se(streq(z, expected));   \
 222         }
 223
 224         test_join("/root", "/a/b", "/c", "/root/a/b/c");
 225         test_join("/root", "a/b", "c", "/root/a/b/c");
 226         test_join("/root", "/a/b", "c", "/root/a/b/c");
 227         test_join("/root", "/", "c", "/root/c");
 228         test_join("/root", "/", NULL, "/root/");
 229
 230         test_join(NULL, "/a/b", "/c", "/a/b/c");
 231         test_join(NULL, "a/b", "c", "a/b/c");
 232         test_join(NULL, "/a/b", "c", "/a/b/c");
 233         test_join(NULL, "/", "c", "/c");
 234         test_join(NULL, "/", NULL, "/");
 235 }
 236
 237 #if 0 /// UNNEEDED by elogind
 238 static void test_fsck_exists(void) {
 239         /* Ensure we use a sane default for PATH. */
 240         unsetenv("PATH");
 241
 242         /* fsck.minix is provided by util-linux and will probably exist. */
 243         assert_se(fsck_exists("minix") == 1);
 244
 245         assert_se(fsck_exists("AbCdE") == 0);
 246         assert_se(fsck_exists("/../bin/") == 0);
 247 }
 248
 249 static void test_make_relative(void) {
 250         char *result;
 251
 252         assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
 253         assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
 254
 255 #define test(from_dir, to_path, expected) {                \
 256                 _cleanup_free_ char *z = NULL;             \
 257                 path_make_relative(from_dir, to_path, &z); \
 258                 assert_se(streq(z, expected));             \
 259         }
 260
 261         test("/", "/", ".");
 262         test("/", "/some/path", "some/path");
 263         test("/some/path", "/some/path", ".");
 264         test("/some/path", "/some/path/in/subdir", "in/subdir");
 265         test("/some/path", "/", "../..");
 266         test("/some/path", "/some/other/path", "../other/path");
 267         test("//extra/////slashes///won't////fool///anybody//", "////extra///slashes////are/just///fine///", "../../../are/just/fine");
 268 }
 269 #endif // 0
 270
 271 static void test_strv_resolve(void) {
 272         char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
 273         _cleanup_strv_free_ char **search_dirs = NULL;
 274         _cleanup_strv_free_ char **absolute_dirs = NULL;
 275         char **d;
 276
 277         assert_se(mkdtemp(tmp_dir) != NULL);
 278
 279         search_dirs = strv_new("/dir1", "/dir2", "/dir3", NULL);
 280         assert_se(search_dirs);
 281         STRV_FOREACH(d, search_dirs) {
 282                 char *p = strappend(tmp_dir, *d);
 283                 assert_se(p);
 284                 assert_se(strv_push(&absolute_dirs, p) == 0);
 285         }
 286
 287         assert_se(mkdir(absolute_dirs[0], 0700) == 0);
 288         assert_se(mkdir(absolute_dirs[1], 0700) == 0);
 289         assert_se(symlink("dir2", absolute_dirs[2]) == 0);
 290
 291         path_strv_resolve(search_dirs, tmp_dir);
 292         assert_se(streq(search_dirs[0], "/dir1"));
 293         assert_se(streq(search_dirs[1], "/dir2"));
 294         assert_se(streq(search_dirs[2], "/dir2"));
 295
 296         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 297 }
 298
 299 static void test_path_startswith(void) {
 300         const char *p;
 301
 302         p = path_startswith("/foo/bar/barfoo/", "/foo");
 303         assert_se(streq_ptr(p, "bar/barfoo/"));
 304
 305         p = path_startswith("/foo/bar/barfoo/", "/foo/");
 306         assert_se(streq_ptr(p, "bar/barfoo/"));
 307
 308         p = path_startswith("/foo/bar/barfoo/", "/");
 309         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 310
 311         p = path_startswith("/foo/bar/barfoo/", "////");
 312         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 313
 314         p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
 315         assert_se(streq_ptr(p, ""));
 316
 317         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
 318         assert_se(streq_ptr(p, ""));
 319
 320         p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
 321         assert_se(streq_ptr(p, ""));
 322
 323         p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
 324         assert_se(streq_ptr(p, ""));
 325
 326         p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
 327         assert_se(streq_ptr(p, ""));
 328
 329         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
 330         assert_se(streq_ptr(p, ""));
 331
 332         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
 333         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
 334         assert_se(!path_startswith("/foo/bar/barfoo/", ""));
 335         assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
 336         assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
 337 }
 338
 339 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 340         _cleanup_free_ char *s = NULL;
 341         const char *t;
 342
 343         assert_se(s = prefix_root(r, p));
 344         assert_se(streq_ptr(s, expected));
 345
 346         t = prefix_roota(r, p);
 347         assert_se(t);
 348         assert_se(streq_ptr(t, expected));
 349 }
 350
 351 static void test_prefix_root(void) {
 352         test_prefix_root_one("/", "/foo", "/foo");
 353         test_prefix_root_one(NULL, "/foo", "/foo");
 354         test_prefix_root_one("", "/foo", "/foo");
 355         test_prefix_root_one("///", "/foo", "/foo");
 356         test_prefix_root_one("/", "////foo", "/foo");
 357         test_prefix_root_one(NULL, "////foo", "/foo");
 358
 359         test_prefix_root_one("/foo", "/bar", "/foo/bar");
 360         test_prefix_root_one("/foo", "bar", "/foo/bar");
 361         test_prefix_root_one("foo", "bar", "foo/bar");
 362         test_prefix_root_one("/foo/", "/bar", "/foo/bar");
 363         test_prefix_root_one("/foo/", "//bar", "/foo/bar");
 364         test_prefix_root_one("/foo///", "//bar", "/foo/bar");
 365 }
 366
 367 static void test_path_is_mount_point(void) {
 368         int fd;
 369         char tmp_dir[] = "/tmp/test-path-is-mount-point-XXXXXX";
 370         _cleanup_free_ char *file1 = NULL, *file2 = NULL, *link1 = NULL, *link2 = NULL;
 371         _cleanup_free_ char *dir1 = NULL, *dir1file = NULL, *dirlink1 = NULL, *dirlink1file = NULL;
 372         _cleanup_free_ char *dir2 = NULL, *dir2file = NULL;
 373
 374         assert_se(path_is_mount_point("/", NULL, AT_SYMLINK_FOLLOW) > 0);
 375         assert_se(path_is_mount_point("/", NULL, 0) > 0);
 376
 377         assert_se(path_is_mount_point("/proc", NULL, AT_SYMLINK_FOLLOW) > 0);
 378         assert_se(path_is_mount_point("/proc", NULL, 0) > 0);
 379
 380         assert_se(path_is_mount_point("/proc/1", NULL, AT_SYMLINK_FOLLOW) == 0);
 381         assert_se(path_is_mount_point("/proc/1", NULL, 0) == 0);
 382
 383         assert_se(path_is_mount_point("/sys", NULL, AT_SYMLINK_FOLLOW) > 0);
 384         assert_se(path_is_mount_point("/sys", NULL, 0) > 0);
 385
 386         /* we'll create a hierarchy of different kinds of dir/file/link
 387          * layouts:
 388          *
 389          * <tmp>/file1, <tmp>/file2
 390          * <tmp>/link1 -> file1, <tmp>/link2 -> file2
 391          * <tmp>/dir1/
 392          * <tmp>/dir1/file
 393          * <tmp>/dirlink1 -> dir1
 394          * <tmp>/dirlink1file -> dirlink1/file
 395          * <tmp>/dir2/
 396          * <tmp>/dir2/file
 397          */
 398
 399         /* file mountpoints */
 400         assert_se(mkdtemp(tmp_dir) != NULL);
 401         file1 = path_join(NULL, tmp_dir, "file1");
 402         assert_se(file1);
 403         file2 = path_join(NULL, tmp_dir, "file2");
 404         assert_se(file2);
 405         fd = open(file1, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 406         assert_se(fd > 0);
 407         close(fd);
 408         fd = open(file2, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 409         assert_se(fd > 0);
 410         close(fd);
 411         link1 = path_join(NULL, tmp_dir, "link1");
 412         assert_se(link1);
 413         assert_se(symlink("file1", link1) == 0);
 414         link2 = path_join(NULL, tmp_dir, "link2");
 415         assert_se(link1);
 416         assert_se(symlink("file2", link2) == 0);
 417
 418         assert_se(path_is_mount_point(file1, NULL, AT_SYMLINK_FOLLOW) == 0);
 419         assert_se(path_is_mount_point(file1, NULL, 0) == 0);
 420         assert_se(path_is_mount_point(link1, NULL, AT_SYMLINK_FOLLOW) == 0);
 421         assert_se(path_is_mount_point(link1, NULL, 0) == 0);
 422
 423         /* directory mountpoints */
 424         dir1 = path_join(NULL, tmp_dir, "dir1");
 425         assert_se(dir1);
 426         assert_se(mkdir(dir1, 0755) == 0);
 427         dirlink1 = path_join(NULL, tmp_dir, "dirlink1");
 428         assert_se(dirlink1);
 429         assert_se(symlink("dir1", dirlink1) == 0);
 430         dirlink1file = path_join(NULL, tmp_dir, "dirlink1file");
 431         assert_se(dirlink1file);
 432         assert_se(symlink("dirlink1/file", dirlink1file) == 0);
 433         dir2 = path_join(NULL, tmp_dir, "dir2");
 434         assert_se(dir2);
 435         assert_se(mkdir(dir2, 0755) == 0);
 436
 437         assert_se(path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW) == 0);
 438         assert_se(path_is_mount_point(dir1, NULL, 0) == 0);
 439         assert_se(path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW) == 0);
 440         assert_se(path_is_mount_point(dirlink1, NULL, 0) == 0);
 441
 442         /* file in subdirectory mountpoints */
 443         dir1file = path_join(NULL, dir1, "file");
 444         assert_se(dir1file);
 445         fd = open(dir1file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 446         assert_se(fd > 0);
 447         close(fd);
 448
 449         assert_se(path_is_mount_point(dir1file, NULL, AT_SYMLINK_FOLLOW) == 0);
 450         assert_se(path_is_mount_point(dir1file, NULL, 0) == 0);
 451         assert_se(path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW) == 0);
 452         assert_se(path_is_mount_point(dirlink1file, NULL, 0) == 0);
 453
 454         /* these tests will only work as root */
 455         if (mount(file1, file2, NULL, MS_BIND, NULL) >= 0) {
 456                 int rt, rf, rlt, rlf, rl1t, rl1f;
 457
 458                 /* files */
 459                 /* capture results in vars, to avoid dangling mounts on failure */
 460                 rf = path_is_mount_point(file2, NULL, 0);
 461                 rt = path_is_mount_point(file2, NULL, AT_SYMLINK_FOLLOW);
 462                 rlf = path_is_mount_point(link2, NULL, 0);
 463                 rlt = path_is_mount_point(link2, NULL, AT_SYMLINK_FOLLOW);
 464
 465                 assert_se(umount(file2) == 0);
 466
 467                 assert_se(rf == 1);
 468                 assert_se(rt == 1);
 469                 assert_se(rlf == 0);
 470                 assert_se(rlt == 1);
 471
 472                 /* dirs */
 473                 dir2file = path_join(NULL, dir2, "file");
 474                 assert_se(dir2file);
 475                 fd = open(dir2file, O_WRONLY|O_CREAT|O_EXCL|O_CLOEXEC, 0664);
 476                 assert_se(fd > 0);
 477                 close(fd);
 478
 479                 assert_se(mount(dir2, dir1, NULL, MS_BIND, NULL) >= 0);
 480
 481                 rf = path_is_mount_point(dir1, NULL, 0);
 482                 rt = path_is_mount_point(dir1, NULL, AT_SYMLINK_FOLLOW);
 483                 rlf = path_is_mount_point(dirlink1, NULL, 0);
 484                 rlt = path_is_mount_point(dirlink1, NULL, AT_SYMLINK_FOLLOW);
 485                 /* its parent is a mount point, but not /file itself */
 486                 rl1f = path_is_mount_point(dirlink1file, NULL, 0);
 487                 rl1t = path_is_mount_point(dirlink1file, NULL, AT_SYMLINK_FOLLOW);
 488
 489                 assert_se(umount(dir1) == 0);
 490
 491                 assert_se(rf == 1);
 492                 assert_se(rt == 1);
 493                 assert_se(rlf == 0);
 494                 assert_se(rlt == 1);
 495                 assert_se(rl1f == 0);
 496                 assert_se(rl1t == 0);
 497
 498         } else
 499                 printf("Skipping bind mount file test: %m\n");
 500
 501         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 502 }
 503
 504 static void test_file_in_same_dir(void) {
 505         char *t;
 506
 507         t = file_in_same_dir("/", "a");
 508         assert_se(streq(t, "/a"));
 509         free(t);
 510
 511         t = file_in_same_dir("/", "/a");
 512         assert_se(streq(t, "/a"));
 513         free(t);
 514
 515         t = file_in_same_dir("", "a");
 516         assert_se(streq(t, "a"));
 517         free(t);
 518
 519         t = file_in_same_dir("a/", "a");
 520         assert_se(streq(t, "a/a"));
 521         free(t);
 522
 523         t = file_in_same_dir("bar/foo", "bar");
 524         assert_se(streq(t, "bar/bar"));
 525         free(t);
 526 }
 527
 528 static void test_filename_is_valid(void) {
 529         char foo[FILENAME_MAX+2];
 530         int i;
 531
 532         assert_se(!filename_is_valid(""));
 533         assert_se(!filename_is_valid("/bar/foo"));
 534         assert_se(!filename_is_valid("/"));
 535         assert_se(!filename_is_valid("."));
 536         assert_se(!filename_is_valid(".."));
 537
 538         for (i=0; i<FILENAME_MAX+1; i++)
 539                 foo[i] = 'a';
 540         foo[FILENAME_MAX+1] = '\0';
 541
 542         assert_se(!filename_is_valid(foo));
 543
 544         assert_se(filename_is_valid("foo_bar-333"));
 545         assert_se(filename_is_valid("o.o"));
 546 }
 547
 548 static void test_hidden_or_backup_file(void) {
 549         assert_se(hidden_or_backup_file(".hidden"));
 550         assert_se(hidden_or_backup_file("..hidden"));
 551         assert_se(!hidden_or_backup_file("hidden."));
 552
 553         assert_se(hidden_or_backup_file("backup~"));
 554         assert_se(hidden_or_backup_file(".backup~"));
 555
 556         assert_se(hidden_or_backup_file("lost+found"));
 557         assert_se(hidden_or_backup_file("aquota.user"));
 558         assert_se(hidden_or_backup_file("aquota.group"));
 559
 560         assert_se(hidden_or_backup_file("test.rpmnew"));
 561         assert_se(hidden_or_backup_file("test.dpkg-old"));
 562         assert_se(hidden_or_backup_file("test.dpkg-remove"));
 563         assert_se(hidden_or_backup_file("test.swp"));
 564
 565         assert_se(!hidden_or_backup_file("test.rpmnew."));
 566         assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
 567 }
 568
 569 #if 0 /// UNNEEDED by elogind
 570 static void test_systemd_installation_has_version(const char *path) {
 571         int r;
 572         const unsigned versions[] = {0, 231, atoi(PACKAGE_VERSION), 999};
 573         unsigned i;
 574
 575         for (i = 0; i < ELEMENTSOF(versions); i++) {
 576                 r = systemd_installation_has_version(path, versions[i]);
 577                 assert_se(r >= 0);
 578                 log_info("%s has systemd >= %u: %s",
 579                          path ?: "Current installation", versions[i], yes_no(r));
 580         }
 581 }
 582 #endif // 0
 583
 584 int main(int argc, char **argv) {
 585         log_set_max_level(LOG_DEBUG);
 586         log_parse_environment();
 587         log_open();
 588
 589         test_path();
 590         test_path_equal_root();
 591         test_find_binary(argv[0]);
 592         test_prefixes();
 593         test_path_join();
 594 #if 0 /// UNNEEDED by elogind
 595         test_fsck_exists();
 596         test_make_relative();
 597 #endif // 0
 598         test_strv_resolve();
 599         test_path_startswith();
 600         test_prefix_root();
 601         test_path_is_mount_point();
 602         test_file_in_same_dir();
 603         test_filename_is_valid();
 604         test_hidden_or_backup_file();
 605
 606 #if 0 /// UNNEEDED by elogind
 607         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
 608 #endif // 0
 609
 610         return 0;
 611 }