src/test/test-path-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <stdio.h>
   4 #include <unistd.h>
   5
   6 #include "alloc-util.h"
   7 #include "fd-util.h"
   8 #include "macro.h"
   9 #include "mountpoint-util.h"
  10 #include "path-util.h"
  11 #include "rm-rf.h"
  12 #include "stat-util.h"
  13 #include "string-util.h"
  14 #include "strv.h"
  15 #include "tests.h"
  16 #include "util.h"
  17
  18 #define test_path_compare(a, b, result) {                 \
  19                 assert_se(path_compare(a, b) == result);  \
  20                 assert_se(path_compare(b, a) == -result); \
  21                 assert_se(path_equal(a, b) == !result);   \
  22                 assert_se(path_equal(b, a) == !result);   \
  23         }
  24
  25 static void test_path_simplify(const char *in, const char *out, const char *out_dot) {
  26         char *p;
  27
  28         log_info("/* %s */", __func__);
  29
  30         p = strdupa(in);
  31         assert_se(streq(path_simplify(p, false), out));
  32
  33         p = strdupa(in);
  34         assert_se(streq(path_simplify(p, true), out_dot));
  35 }
  36
  37 static void test_path(void) {
  38         _cleanup_close_ int fd = -1;
  39
  40         log_info("/* %s */", __func__);
  41
  42         test_path_compare("/goo", "/goo", 0);
  43         test_path_compare("/goo", "/goo", 0);
  44         test_path_compare("//goo", "/goo", 0);
  45         test_path_compare("//goo/////", "/goo", 0);
  46         test_path_compare("goo/////", "goo", 0);
  47
  48         test_path_compare("/goo/boo", "/goo//boo", 0);
  49         test_path_compare("//goo/boo", "/goo/boo//", 0);
  50
  51         test_path_compare("/", "///", 0);
  52
  53         test_path_compare("/x", "x/", 1);
  54         test_path_compare("x/", "/", -1);
  55
  56         test_path_compare("/x/./y", "x/y", 1);
  57         test_path_compare("x/.y", "x/y", -1);
  58
  59         test_path_compare("foo", "/foo", -1);
  60         test_path_compare("/foo", "/foo/bar", -1);
  61         test_path_compare("/foo/aaa", "/foo/b", -1);
  62         test_path_compare("/foo/aaa", "/foo/b/a", -1);
  63         test_path_compare("/foo/a", "/foo/aaa", -1);
  64         test_path_compare("/foo/a/b", "/foo/aaa", -1);
  65
  66         assert_se(path_is_absolute("/"));
  67         assert_se(!path_is_absolute("./"));
  68
  69         assert_se(is_path("/dir"));
  70         assert_se(is_path("a/b"));
  71         assert_se(!is_path("."));
  72
  73         assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
  74         assert_se(streq(basename("/aa///.file"), ".file"));
  75         assert_se(streq(basename("/aa///file..."), "file..."));
  76         assert_se(streq(basename("file.../"), ""));
  77
  78         fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
  79         assert_se(fd >= 0);
  80         assert_se(fd_is_mount_point(fd, "/", 0) > 0);
  81
  82         test_path_simplify("aaa/bbb////ccc", "aaa/bbb/ccc", "aaa/bbb/ccc");
  83         test_path_simplify("//aaa/.////ccc", "/aaa/./ccc", "/aaa/ccc");
  84         test_path_simplify("///", "/", "/");
  85         test_path_simplify("///.//", "/.", "/");
  86         test_path_simplify("///.//.///", "/./.", "/");
  87         test_path_simplify("////.././///../.", "/.././../.", "/../..");
  88         test_path_simplify(".", ".", ".");
  89         test_path_simplify("./", ".", ".");
  90         test_path_simplify(".///.//./.", "./././.", ".");
  91         test_path_simplify(".///.//././/", "./././.", ".");
  92         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
  93                            "/./aaa/././.bbb/../c./d.dd/..eeee/.",
  94                            "/aaa/.bbb/../c./d.dd/..eeee");
  95         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  96                            "/./aaa/././.bbb/../c./d.dd/..eeee/..",
  97                            "/aaa/.bbb/../c./d.dd/..eeee/..");
  98         test_path_simplify(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
  99                            "././aaa/././.bbb/../c./d.dd/..eeee/..",
 100                            "aaa/.bbb/../c./d.dd/..eeee/..");
 101         test_path_simplify("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
 102                            ".././aaa/././.bbb/../c./d.dd/..eeee/..",
 103                            "../aaa/.bbb/../c./d.dd/..eeee/..");
 104
 105         assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
 106         assert_se(PATH_IN_SET("/bin", "/bin"));
 107         assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
 108         assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
 109         assert_se(!PATH_IN_SET("/", "/abc", "/def"));
 110
 111         assert_se(path_equal_ptr(NULL, NULL));
 112         assert_se(path_equal_ptr("/a", "/a"));
 113         assert_se(!path_equal_ptr("/a", "/b"));
 114         assert_se(!path_equal_ptr("/a", NULL));
 115         assert_se(!path_equal_ptr(NULL, "/a"));
 116 }
 117
 118 static void test_path_equal_root(void) {
 119         /* Nail down the details of how path_equal("/", ...) works. */
 120
 121         log_info("/* %s */", __func__);
 122
 123         assert_se(path_equal("/", "/"));
 124         assert_se(path_equal("/", "//"));
 125
 126         assert_se(!path_equal("/", "/./"));
 127         assert_se(!path_equal("/", "/../"));
 128
 129         assert_se(!path_equal("/", "/.../"));
 130
 131         /* Make sure that files_same works as expected. */
 132
 133         assert_se(files_same("/", "/", 0) > 0);
 134         assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
 135         assert_se(files_same("/", "//", 0) > 0);
 136         assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
 137
 138         assert_se(files_same("/", "/./", 0) > 0);
 139         assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
 140         assert_se(files_same("/", "/../", 0) > 0);
 141         assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
 142
 143         assert_se(files_same("/", "/.../", 0) == -ENOENT);
 144         assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
 145
 146         /* The same for path_equal_or_files_same. */
 147
 148         assert_se(path_equal_or_files_same("/", "/", 0));
 149         assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
 150         assert_se(path_equal_or_files_same("/", "//", 0));
 151         assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
 152
 153         assert_se(path_equal_or_files_same("/", "/./", 0));
 154         assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
 155         assert_se(path_equal_or_files_same("/", "/../", 0));
 156         assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
 157
 158         assert_se(!path_equal_or_files_same("/", "/.../", 0));
 159         assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
 160 }
 161
 162 static void test_find_binary(const char *self) {
 163         char *p;
 164
 165         log_info("/* %s */", __func__);
 166
 167         assert_se(find_binary("/bin/sh", &p) == 0);
 168         puts(p);
 169         assert_se(path_equal(p, "/bin/sh"));
 170         free(p);
 171
 172         assert_se(find_binary(self, &p) == 0);
 173         puts(p);
 174         /* libtool might prefix the binary name with "lt-" */
 175         assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
 176         assert_se(path_is_absolute(p));
 177         free(p);
 178
 179         assert_se(find_binary("sh", &p) == 0);
 180         puts(p);
 181         assert_se(endswith(p, "/sh"));
 182         assert_se(path_is_absolute(p));
 183         free(p);
 184
 185         assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
 186         assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 187 }
 188
 189 static void test_prefixes(void) {
 190         static const char* const values[] = {
 191                 "/a/b/c/d",
 192                 "/a/b/c",
 193                 "/a/b",
 194                 "/a",
 195                 "",
 196                 NULL
 197         };
 198         unsigned i;
 199         char s[PATH_MAX];
 200         bool b;
 201
 202         log_info("/* %s */", __func__);
 203
 204         i = 0;
 205         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 206                 log_error("---%s---", s);
 207                 assert_se(streq(s, values[i++]));
 208         }
 209         assert_se(values[i] == NULL);
 210
 211         i = 1;
 212         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 213                 log_error("---%s---", s);
 214                 assert_se(streq(s, values[i++]));
 215         }
 216         assert_se(values[i] == NULL);
 217
 218         i = 0;
 219         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 220                 assert_se(streq(s, values[i++]));
 221         assert_se(values[i] == NULL);
 222
 223         i = 1;
 224         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 225                 assert_se(streq(s, values[i++]));
 226         assert_se(values[i] == NULL);
 227
 228         PATH_FOREACH_PREFIX(s, "////")
 229                 assert_not_reached("Wut?");
 230
 231         b = false;
 232         PATH_FOREACH_PREFIX_MORE(s, "////") {
 233                 assert_se(!b);
 234                 assert_se(streq(s, ""));
 235                 b = true;
 236         }
 237         assert_se(b);
 238
 239         PATH_FOREACH_PREFIX(s, "")
 240                 assert_not_reached("wut?");
 241
 242         b = false;
 243         PATH_FOREACH_PREFIX_MORE(s, "") {
 244                 assert_se(!b);
 245                 assert_se(streq(s, ""));
 246                 b = true;
 247         }
 248 }
 249
 250 static void test_path_join(void) {
 251         log_info("/* %s */", __func__);
 252
 253 #define test_join(expected, ...) {        \
 254                 _cleanup_free_ char *z = NULL;   \
 255                 z = path_join(__VA_ARGS__); \
 256                 log_debug("got \"%s\", expected \"%s\"", z, expected); \
 257                 assert_se(streq(z, expected));   \
 258         }
 259
 260         test_join("/root/a/b/c", "/root", "/a/b", "/c");
 261         test_join("/root/a/b/c", "/root", "a/b", "c");
 262         test_join("/root/a/b/c", "/root", "/a/b", "c");
 263         test_join("/root/c",     "/root", "/", "c");
 264         test_join("/root/",      "/root", "/", NULL);
 265
 266         test_join("/a/b/c", "", "/a/b", "/c");
 267         test_join("a/b/c",  "", "a/b", "c");
 268         test_join("/a/b/c", "", "/a/b", "c");
 269         test_join("/c",     "", "/", "c");
 270         test_join("/",      "", "/", NULL);
 271
 272         test_join("/a/b/c", NULL, "/a/b", "/c");
 273         test_join("a/b/c",  NULL, "a/b", "c");
 274         test_join("/a/b/c", NULL, "/a/b", "c");
 275         test_join("/c",     NULL, "/", "c");
 276         test_join("/",      NULL, "/", NULL);
 277
 278         test_join("", "", NULL);
 279         test_join("", NULL, "");
 280         test_join("", NULL, NULL);
 281
 282         test_join("foo/bar", "foo", "bar");
 283         test_join("foo/bar", "", "foo", "bar");
 284         test_join("foo/bar", NULL, "foo", NULL, "bar");
 285         test_join("foo/bar", "", "foo", "", "bar", "");
 286         test_join("foo/bar", "", "", "", "", "foo", "", "", "", "bar", "", "", "");
 287
 288         test_join("//foo///bar//",         "", "/", "", "/foo/", "", "/", "", "/bar/", "", "/", "");
 289         test_join("/foo/bar/",             "/", "foo", "/", "bar", "/");
 290         test_join("foo/bar/baz",           "foo", "bar", "baz");
 291         test_join("foo/bar/baz",           "foo/", "bar", "/baz");
 292         test_join("foo//bar//baz",         "foo/", "/bar/", "/baz");
 293         test_join("//foo////bar////baz//", "//foo/", "///bar/", "///baz//");
 294 }
 295
 296 static void test_fsck_exists(void) {
 297         log_info("/* %s */", __func__);
 298
 299         /* Ensure we use a sane default for PATH. */
 300         unsetenv("PATH");
 301
 302         /* fsck.minix is provided by util-linux and will probably exist. */
 303         assert_se(fsck_exists("minix") == 1);
 304
 305         assert_se(fsck_exists("AbCdE") == 0);
 306         assert_se(fsck_exists("/../bin/") == 0);
 307 }
 308
 309 static void test_make_relative(void) {
 310         char *result;
 311
 312         log_info("/* %s */", __func__);
 313
 314         assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
 315         assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
 316         assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0);
 317
 318 #define test(from_dir, to_path, expected) {                \
 319                 _cleanup_free_ char *z = NULL;             \
 320                 path_make_relative(from_dir, to_path, &z); \
 321                 assert_se(streq(z, expected));             \
 322         }
 323
 324         test("/", "/", ".");
 325         test("/", "/some/path", "some/path");
 326         test("/some/path", "/some/path", ".");
 327         test("/some/path", "/some/path/in/subdir", "in/subdir");
 328         test("/some/path", "/", "../..");
 329         test("/some/path", "/some/other/path", "../other/path");
 330         test("/some/path/./dot", "/some/further/path", "../../further/path");
 331         test("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
 332 }
 333
 334 static void test_strv_resolve(void) {
 335         char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
 336         _cleanup_strv_free_ char **search_dirs = NULL;
 337         _cleanup_strv_free_ char **absolute_dirs = NULL;
 338         char **d;
 339
 340         assert_se(mkdtemp(tmp_dir) != NULL);
 341
 342         search_dirs = strv_new("/dir1", "/dir2", "/dir3");
 343         assert_se(search_dirs);
 344         STRV_FOREACH(d, search_dirs) {
 345                 char *p = path_join(tmp_dir, *d);
 346                 assert_se(p);
 347                 assert_se(strv_push(&absolute_dirs, p) == 0);
 348         }
 349
 350         assert_se(mkdir(absolute_dirs[0], 0700) == 0);
 351         assert_se(mkdir(absolute_dirs[1], 0700) == 0);
 352         assert_se(symlink("dir2", absolute_dirs[2]) == 0);
 353
 354         path_strv_resolve(search_dirs, tmp_dir);
 355         assert_se(streq(search_dirs[0], "/dir1"));
 356         assert_se(streq(search_dirs[1], "/dir2"));
 357         assert_se(streq(search_dirs[2], "/dir2"));
 358
 359         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 360 }
 361
 362 static void test_path_startswith(void) {
 363         const char *p;
 364
 365         log_info("/* %s */", __func__);
 366
 367         p = path_startswith("/foo/bar/barfoo/", "/foo");
 368         assert_se(streq_ptr(p, "bar/barfoo/"));
 369
 370         p = path_startswith("/foo/bar/barfoo/", "/foo/");
 371         assert_se(streq_ptr(p, "bar/barfoo/"));
 372
 373         p = path_startswith("/foo/bar/barfoo/", "/");
 374         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 375
 376         p = path_startswith("/foo/bar/barfoo/", "////");
 377         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 378
 379         p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
 380         assert_se(streq_ptr(p, ""));
 381
 382         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
 383         assert_se(streq_ptr(p, ""));
 384
 385         p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
 386         assert_se(streq_ptr(p, ""));
 387
 388         p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
 389         assert_se(streq_ptr(p, ""));
 390
 391         p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
 392         assert_se(streq_ptr(p, ""));
 393
 394         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
 395         assert_se(streq_ptr(p, ""));
 396
 397         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
 398         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
 399         assert_se(!path_startswith("/foo/bar/barfoo/", ""));
 400         assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
 401         assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
 402 }
 403
 404 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 405         _cleanup_free_ char *s = NULL;
 406         const char *t;
 407
 408         assert_se(s = path_join(r, p));
 409         assert_se(path_equal_ptr(s, expected));
 410
 411         t = prefix_roota(r, p);
 412         assert_se(t);
 413         assert_se(path_equal_ptr(t, expected));
 414 }
 415
 416 static void test_prefix_root(void) {
 417         log_info("/* %s */", __func__);
 418
 419         test_prefix_root_one("/", "/foo", "/foo");
 420         test_prefix_root_one(NULL, "/foo", "/foo");
 421         test_prefix_root_one("", "/foo", "/foo");
 422         test_prefix_root_one("///", "/foo", "/foo");
 423         test_prefix_root_one("/", "////foo", "/foo");
 424         test_prefix_root_one(NULL, "////foo", "/foo");
 425         test_prefix_root_one("/", "foo", "/foo");
 426         test_prefix_root_one("", "foo", "foo");
 427         test_prefix_root_one(NULL, "foo", "foo");
 428
 429         test_prefix_root_one("/foo", "/bar", "/foo/bar");
 430         test_prefix_root_one("/foo", "bar", "/foo/bar");
 431         test_prefix_root_one("foo", "bar", "foo/bar");
 432         test_prefix_root_one("/foo/", "/bar", "/foo/bar");
 433         test_prefix_root_one("/foo/", "//bar", "/foo/bar");
 434         test_prefix_root_one("/foo///", "//bar", "/foo/bar");
 435 }
 436
 437 static void test_file_in_same_dir(void) {
 438         char *t;
 439
 440         log_info("/* %s */", __func__);
 441
 442         t = file_in_same_dir("/", "a");
 443         assert_se(streq(t, "/a"));
 444         free(t);
 445
 446         t = file_in_same_dir("/", "/a");
 447         assert_se(streq(t, "/a"));
 448         free(t);
 449
 450         t = file_in_same_dir("", "a");
 451         assert_se(streq(t, "a"));
 452         free(t);
 453
 454         t = file_in_same_dir("a/", "a");
 455         assert_se(streq(t, "a/a"));
 456         free(t);
 457
 458         t = file_in_same_dir("bar/foo", "bar");
 459         assert_se(streq(t, "bar/bar"));
 460         free(t);
 461 }
 462
 463 static void test_last_path_component(void) {
 464         assert_se(last_path_component(NULL) == NULL);
 465         assert_se(streq(last_path_component("a/b/c"), "c"));
 466         assert_se(streq(last_path_component("a/b/c/"), "c/"));
 467         assert_se(streq(last_path_component("/"), "/"));
 468         assert_se(streq(last_path_component("//"), "/"));
 469         assert_se(streq(last_path_component("///"), "/"));
 470         assert_se(streq(last_path_component("."), "."));
 471         assert_se(streq(last_path_component("./."), "."));
 472         assert_se(streq(last_path_component("././"), "./"));
 473         assert_se(streq(last_path_component("././/"), ".//"));
 474         assert_se(streq(last_path_component("/foo/a"), "a"));
 475         assert_se(streq(last_path_component("/foo/a/"), "a/"));
 476         assert_se(streq(last_path_component(""), ""));
 477         assert_se(streq(last_path_component("a"), "a"));
 478         assert_se(streq(last_path_component("a/"), "a/"));
 479         assert_se(streq(last_path_component("/a"), "a"));
 480         assert_se(streq(last_path_component("/a/"), "a/"));
 481 }
 482
 483 static void test_path_extract_filename_one(const char *input, const char *output, int ret) {
 484         _cleanup_free_ char *k = NULL;
 485         int r;
 486
 487         r = path_extract_filename(input, &k);
 488         log_info("%s → %s/%s [expected: %s/%s]", strnull(input), strnull(k), strerror_safe(r), strnull(output), strerror_safe(ret));
 489         assert_se(streq_ptr(k, output));
 490         assert_se(r == ret);
 491 }
 492
 493 static void test_path_extract_filename(void) {
 494         log_info("/* %s */", __func__);
 495
 496         test_path_extract_filename_one(NULL, NULL, -EINVAL);
 497         test_path_extract_filename_one("a/b/c", "c", 0);
 498         test_path_extract_filename_one("a/b/c/", "c", 0);
 499         test_path_extract_filename_one("/", NULL, -EINVAL);
 500         test_path_extract_filename_one("//", NULL, -EINVAL);
 501         test_path_extract_filename_one("///", NULL, -EINVAL);
 502         test_path_extract_filename_one(".", NULL, -EINVAL);
 503         test_path_extract_filename_one("./.", NULL, -EINVAL);
 504         test_path_extract_filename_one("././", NULL, -EINVAL);
 505         test_path_extract_filename_one("././/", NULL, -EINVAL);
 506         test_path_extract_filename_one("/foo/a", "a", 0);
 507         test_path_extract_filename_one("/foo/a/", "a", 0);
 508         test_path_extract_filename_one("", NULL, -EINVAL);
 509         test_path_extract_filename_one("a", "a", 0);
 510         test_path_extract_filename_one("a/", "a", 0);
 511         test_path_extract_filename_one("/a", "a", 0);
 512         test_path_extract_filename_one("/a/", "a", 0);
 513         test_path_extract_filename_one("/////////////a/////////////", "a", 0);
 514         test_path_extract_filename_one("xx/.", NULL, -EINVAL);
 515         test_path_extract_filename_one("xx/..", NULL, -EINVAL);
 516         test_path_extract_filename_one("..", NULL, -EINVAL);
 517         test_path_extract_filename_one("/..", NULL, -EINVAL);
 518         test_path_extract_filename_one("../", NULL, -EINVAL);
 519         test_path_extract_filename_one(".", NULL, -EINVAL);
 520         test_path_extract_filename_one("/.", NULL, -EINVAL);
 521         test_path_extract_filename_one("./", NULL, -EINVAL);
 522 }
 523
 524 static void test_filename_is_valid(void) {
 525         char foo[FILENAME_MAX+2];
 526         int i;
 527
 528         log_info("/* %s */", __func__);
 529
 530         assert_se(!filename_is_valid(""));
 531         assert_se(!filename_is_valid("/bar/foo"));
 532         assert_se(!filename_is_valid("/"));
 533         assert_se(!filename_is_valid("."));
 534         assert_se(!filename_is_valid(".."));
 535
 536         for (i=0; i<FILENAME_MAX+1; i++)
 537                 foo[i] = 'a';
 538         foo[FILENAME_MAX+1] = '\0';
 539
 540         assert_se(!filename_is_valid(foo));
 541
 542         assert_se(filename_is_valid("foo_bar-333"));
 543         assert_se(filename_is_valid("o.o"));
 544 }
 545
 546 static void test_hidden_or_backup_file(void) {
 547         log_info("/* %s */", __func__);
 548
 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 static void test_systemd_installation_has_version(const char *path) {
 570         int r;
 571         const unsigned versions[] = {0, 231, PROJECT_VERSION, 999};
 572         unsigned i;
 573
 574         log_info("/* %s */", __func__);
 575
 576         for (i = 0; i < ELEMENTSOF(versions); i++) {
 577                 r = systemd_installation_has_version(path, versions[i]);
 578                 assert_se(r >= 0);
 579                 log_info("%s has systemd >= %u: %s",
 580                          path ?: "Current installation", versions[i], yes_no(r));
 581         }
 582 }
 583
 584 static void test_skip_dev_prefix(void) {
 585         log_info("/* %s */", __func__);
 586
 587         assert_se(streq(skip_dev_prefix("/"), "/"));
 588         assert_se(streq(skip_dev_prefix("/dev"), ""));
 589         assert_se(streq(skip_dev_prefix("/dev/"), ""));
 590         assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
 591         assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
 592         assert_se(streq(skip_dev_prefix("//dev"), ""));
 593         assert_se(streq(skip_dev_prefix("//dev//"), ""));
 594         assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
 595         assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
 596         assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
 597         assert_se(streq(skip_dev_prefix("foo"), "foo"));
 598 }
 599
 600 static void test_empty_or_root(void) {
 601         log_info("/* %s */", __func__);
 602
 603         assert_se(empty_or_root(NULL));
 604         assert_se(empty_or_root(""));
 605         assert_se(empty_or_root("/"));
 606         assert_se(empty_or_root("//"));
 607         assert_se(empty_or_root("///"));
 608         assert_se(empty_or_root("/////////////////"));
 609         assert_se(!empty_or_root("xxx"));
 610         assert_se(!empty_or_root("/xxx"));
 611         assert_se(!empty_or_root("/xxx/"));
 612         assert_se(!empty_or_root("//yy//"));
 613 }
 614
 615 static void test_path_startswith_set(void) {
 616         log_info("/* %s */", __func__);
 617
 618         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/bar", "/zzz"), ""));
 619         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/", "/zzz"), "bar"));
 620         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo", "/zzz"), "bar"));
 621         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/", "/zzz"), "foo/bar"));
 622         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "", "/zzz"), NULL));
 623
 624         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/bar", "/zzz"), NULL));
 625         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/", "/zzz"), "bar2"));
 626         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo", "/zzz"), "bar2"));
 627         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/", "/zzz"), "foo/bar2"));
 628         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "", "/zzz"), NULL));
 629
 630         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/bar", "/zzz"), NULL));
 631         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/", "/zzz"), NULL));
 632         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo", "/zzz"), NULL));
 633         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/", "/zzz"), "foo2/bar"));
 634         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "", "/zzz"), NULL));
 635 }
 636
 637 static void test_path_startswith_strv(void) {
 638         log_info("/* %s */", __func__);
 639
 640         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), ""));
 641         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar"));
 642         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar"));
 643         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar"));
 644         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 645
 646         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
 647         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar2"));
 648         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar2"));
 649         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar2"));
 650         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 651
 652         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
 653         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), NULL));
 654         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), NULL));
 655         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo2/bar"));
 656         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 657 }
 658
 659 int main(int argc, char **argv) {
 660         test_setup_logging(LOG_DEBUG);
 661
 662         test_path();
 663         test_path_equal_root();
 664         test_find_binary(argv[0]);
 665         test_prefixes();
 666         test_path_join();
 667         test_fsck_exists();
 668         test_make_relative();
 669         test_strv_resolve();
 670         test_path_startswith();
 671         test_prefix_root();
 672         test_file_in_same_dir();
 673         test_last_path_component();
 674         test_path_extract_filename();
 675         test_filename_is_valid();
 676         test_hidden_or_backup_file();
 677         test_skip_dev_prefix();
 678         test_empty_or_root();
 679         test_path_startswith_set();
 680         test_path_startswith_strv();
 681
 682         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
 683
 684         return 0;
 685 }