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 static void test_print_paths(void) {
  19         log_info("DEFAULT_PATH=%s", DEFAULT_PATH);
  20         log_info("DEFAULT_USER_PATH=%s", DEFAULT_USER_PATH);
  21 }
  22
  23 #define test_path_compare(a, b, result) {                 \
  24                 assert_se(path_compare(a, b) == result);  \
  25                 assert_se(path_compare(b, a) == -result); \
  26                 assert_se(path_equal(a, b) == !result);   \
  27                 assert_se(path_equal(b, a) == !result);   \
  28         }
  29
  30 static void test_path_simplify(const char *in, const char *out, const char *out_dot) {
  31         char *p;
  32
  33         log_info("/* %s */", __func__);
  34
  35         p = strdupa(in);
  36         assert_se(streq(path_simplify(p, false), out));
  37
  38         p = strdupa(in);
  39         assert_se(streq(path_simplify(p, true), out_dot));
  40 }
  41
  42 static void test_path(void) {
  43         _cleanup_close_ int fd = -1;
  44
  45         log_info("/* %s */", __func__);
  46
  47         test_path_compare("/goo", "/goo", 0);
  48         test_path_compare("/goo", "/goo", 0);
  49         test_path_compare("//goo", "/goo", 0);
  50         test_path_compare("//goo/////", "/goo", 0);
  51         test_path_compare("goo/////", "goo", 0);
  52
  53         test_path_compare("/goo/boo", "/goo//boo", 0);
  54         test_path_compare("//goo/boo", "/goo/boo//", 0);
  55
  56         test_path_compare("/", "///", 0);
  57
  58         test_path_compare("/x", "x/", 1);
  59         test_path_compare("x/", "/", -1);
  60
  61         test_path_compare("/x/./y", "x/y", 1);
  62         test_path_compare("x/.y", "x/y", -1);
  63
  64         test_path_compare("foo", "/foo", -1);
  65         test_path_compare("/foo", "/foo/bar", -1);
  66         test_path_compare("/foo/aaa", "/foo/b", -1);
  67         test_path_compare("/foo/aaa", "/foo/b/a", -1);
  68         test_path_compare("/foo/a", "/foo/aaa", -1);
  69         test_path_compare("/foo/a/b", "/foo/aaa", -1);
  70
  71         assert_se(path_is_absolute("/"));
  72         assert_se(!path_is_absolute("./"));
  73
  74         assert_se(is_path("/dir"));
  75         assert_se(is_path("a/b"));
  76         assert_se(!is_path("."));
  77
  78         assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
  79         assert_se(streq(basename("/aa///.file"), ".file"));
  80         assert_se(streq(basename("/aa///file..."), "file..."));
  81         assert_se(streq(basename("file.../"), ""));
  82
  83         fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
  84         assert_se(fd >= 0);
  85         assert_se(fd_is_mount_point(fd, "/", 0) > 0);
  86
  87         test_path_simplify("aaa/bbb////ccc", "aaa/bbb/ccc", "aaa/bbb/ccc");
  88         test_path_simplify("//aaa/.////ccc", "/aaa/./ccc", "/aaa/ccc");
  89         test_path_simplify("///", "/", "/");
  90         test_path_simplify("///.//", "/.", "/");
  91         test_path_simplify("///.//.///", "/./.", "/");
  92         test_path_simplify("////.././///../.", "/.././../.", "/../..");
  93         test_path_simplify(".", ".", ".");
  94         test_path_simplify("./", ".", ".");
  95         test_path_simplify(".///.//./.", "./././.", ".");
  96         test_path_simplify(".///.//././/", "./././.", ".");
  97         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
  98                            "/./aaa/././.bbb/../c./d.dd/..eeee/.",
  99                            "/aaa/.bbb/../c./d.dd/..eeee");
 100         test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
 101                            "/./aaa/././.bbb/../c./d.dd/..eeee/..",
 102                            "/aaa/.bbb/../c./d.dd/..eeee/..");
 103         test_path_simplify(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
 104                            "././aaa/././.bbb/../c./d.dd/..eeee/..",
 105                            "aaa/.bbb/../c./d.dd/..eeee/..");
 106         test_path_simplify("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
 107                            ".././aaa/././.bbb/../c./d.dd/..eeee/..",
 108                            "../aaa/.bbb/../c./d.dd/..eeee/..");
 109
 110         assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
 111         assert_se(PATH_IN_SET("/bin", "/bin"));
 112         assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
 113         assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
 114         assert_se(!PATH_IN_SET("/", "/abc", "/def"));
 115
 116         assert_se(path_equal_ptr(NULL, NULL));
 117         assert_se(path_equal_ptr("/a", "/a"));
 118         assert_se(!path_equal_ptr("/a", "/b"));
 119         assert_se(!path_equal_ptr("/a", NULL));
 120         assert_se(!path_equal_ptr(NULL, "/a"));
 121 }
 122
 123 static void test_path_equal_root(void) {
 124         /* Nail down the details of how path_equal("/", ...) works. */
 125
 126         log_info("/* %s */", __func__);
 127
 128         assert_se(path_equal("/", "/"));
 129         assert_se(path_equal("/", "//"));
 130
 131         assert_se(!path_equal("/", "/./"));
 132         assert_se(!path_equal("/", "/../"));
 133
 134         assert_se(!path_equal("/", "/.../"));
 135
 136         /* Make sure that files_same works as expected. */
 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) > 0);
 144         assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
 145         assert_se(files_same("/", "/../", 0) > 0);
 146         assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
 147
 148         assert_se(files_same("/", "/.../", 0) == -ENOENT);
 149         assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
 150
 151         /* The same for path_equal_or_files_same. */
 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         assert_se(path_equal_or_files_same("/", "/../", 0));
 161         assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
 162
 163         assert_se(!path_equal_or_files_same("/", "/.../", 0));
 164         assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
 165 }
 166
 167 static void test_find_binary(const char *self) {
 168         char *p;
 169
 170         log_info("/* %s */", __func__);
 171
 172         assert_se(find_binary("/bin/sh", &p) == 0);
 173         puts(p);
 174         assert_se(path_equal(p, "/bin/sh"));
 175         free(p);
 176
 177         assert_se(find_binary(self, &p) == 0);
 178         puts(p);
 179         /* libtool might prefix the binary name with "lt-" */
 180         assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
 181         assert_se(path_is_absolute(p));
 182         free(p);
 183
 184         assert_se(find_binary("sh", &p) == 0);
 185         puts(p);
 186         assert_se(endswith(p, "/sh"));
 187         assert_se(path_is_absolute(p));
 188         free(p);
 189
 190         assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
 191         assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
 192 }
 193
 194 static void test_prefixes(void) {
 195         static const char* const values[] = {
 196                 "/a/b/c/d",
 197                 "/a/b/c",
 198                 "/a/b",
 199                 "/a",
 200                 "",
 201                 NULL
 202         };
 203         unsigned i;
 204         char s[PATH_MAX];
 205         bool b;
 206
 207         log_info("/* %s */", __func__);
 208
 209         i = 0;
 210         PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
 211                 log_error("---%s---", s);
 212                 assert_se(streq(s, values[i++]));
 213         }
 214         assert_se(values[i] == NULL);
 215
 216         i = 1;
 217         PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
 218                 log_error("---%s---", s);
 219                 assert_se(streq(s, values[i++]));
 220         }
 221         assert_se(values[i] == NULL);
 222
 223         i = 0;
 224         PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
 225                 assert_se(streq(s, values[i++]));
 226         assert_se(values[i] == NULL);
 227
 228         i = 1;
 229         PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
 230                 assert_se(streq(s, values[i++]));
 231         assert_se(values[i] == NULL);
 232
 233         PATH_FOREACH_PREFIX(s, "////")
 234                 assert_not_reached("Wut?");
 235
 236         b = false;
 237         PATH_FOREACH_PREFIX_MORE(s, "////") {
 238                 assert_se(!b);
 239                 assert_se(streq(s, ""));
 240                 b = true;
 241         }
 242         assert_se(b);
 243
 244         PATH_FOREACH_PREFIX(s, "")
 245                 assert_not_reached("wut?");
 246
 247         b = false;
 248         PATH_FOREACH_PREFIX_MORE(s, "") {
 249                 assert_se(!b);
 250                 assert_se(streq(s, ""));
 251                 b = true;
 252         }
 253 }
 254
 255 static void test_path_join(void) {
 256         log_info("/* %s */", __func__);
 257
 258 #define test_join(expected, ...) {        \
 259                 _cleanup_free_ char *z = NULL;   \
 260                 z = path_join(__VA_ARGS__); \
 261                 log_debug("got \"%s\", expected \"%s\"", z, expected); \
 262                 assert_se(streq(z, expected));   \
 263         }
 264
 265         test_join("/root/a/b/c", "/root", "/a/b", "/c");
 266         test_join("/root/a/b/c", "/root", "a/b", "c");
 267         test_join("/root/a/b/c", "/root", "/a/b", "c");
 268         test_join("/root/c",     "/root", "/", "c");
 269         test_join("/root/",      "/root", "/", NULL);
 270
 271         test_join("/a/b/c", "", "/a/b", "/c");
 272         test_join("a/b/c",  "", "a/b", "c");
 273         test_join("/a/b/c", "", "/a/b", "c");
 274         test_join("/c",     "", "/", "c");
 275         test_join("/",      "", "/", NULL);
 276
 277         test_join("/a/b/c", NULL, "/a/b", "/c");
 278         test_join("a/b/c",  NULL, "a/b", "c");
 279         test_join("/a/b/c", NULL, "/a/b", "c");
 280         test_join("/c",     NULL, "/", "c");
 281         test_join("/",      NULL, "/", NULL);
 282
 283         test_join("", "", NULL);
 284         test_join("", NULL, "");
 285         test_join("", NULL, NULL);
 286
 287         test_join("foo/bar", "foo", "bar");
 288         test_join("foo/bar", "", "foo", "bar");
 289         test_join("foo/bar", NULL, "foo", NULL, "bar");
 290         test_join("foo/bar", "", "foo", "", "bar", "");
 291         test_join("foo/bar", "", "", "", "", "foo", "", "", "", "bar", "", "", "");
 292
 293         test_join("//foo///bar//",         "", "/", "", "/foo/", "", "/", "", "/bar/", "", "/", "");
 294         test_join("/foo/bar/",             "/", "foo", "/", "bar", "/");
 295         test_join("foo/bar/baz",           "foo", "bar", "baz");
 296         test_join("foo/bar/baz",           "foo/", "bar", "/baz");
 297         test_join("foo//bar//baz",         "foo/", "/bar/", "/baz");
 298         test_join("//foo////bar////baz//", "//foo/", "///bar/", "///baz//");
 299 }
 300
 301 static void test_fsck_exists(void) {
 302         log_info("/* %s */", __func__);
 303
 304         /* Ensure we use a sane default for PATH. */
 305         unsetenv("PATH");
 306
 307         /* fsck.minix is provided by util-linux and will probably exist. */
 308         assert_se(fsck_exists("minix") == 1);
 309
 310         assert_se(fsck_exists("AbCdE") == 0);
 311         assert_se(fsck_exists("/../bin/") == 0);
 312 }
 313
 314 static void test_make_relative(void) {
 315         char *result;
 316
 317         log_info("/* %s */", __func__);
 318
 319         assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
 320         assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
 321         assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0);
 322
 323 #define test(from_dir, to_path, expected) {                \
 324                 _cleanup_free_ char *z = NULL;             \
 325                 path_make_relative(from_dir, to_path, &z); \
 326                 assert_se(streq(z, expected));             \
 327         }
 328
 329         test("/", "/", ".");
 330         test("/", "/some/path", "some/path");
 331         test("/some/path", "/some/path", ".");
 332         test("/some/path", "/some/path/in/subdir", "in/subdir");
 333         test("/some/path", "/", "../..");
 334         test("/some/path", "/some/other/path", "../other/path");
 335         test("/some/path/./dot", "/some/further/path", "../../further/path");
 336         test("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
 337 }
 338
 339 static void test_strv_resolve(void) {
 340         char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
 341         _cleanup_strv_free_ char **search_dirs = NULL;
 342         _cleanup_strv_free_ char **absolute_dirs = NULL;
 343         char **d;
 344
 345         assert_se(mkdtemp(tmp_dir) != NULL);
 346
 347         search_dirs = strv_new("/dir1", "/dir2", "/dir3");
 348         assert_se(search_dirs);
 349         STRV_FOREACH(d, search_dirs) {
 350                 char *p = path_join(tmp_dir, *d);
 351                 assert_se(p);
 352                 assert_se(strv_push(&absolute_dirs, p) == 0);
 353         }
 354
 355         assert_se(mkdir(absolute_dirs[0], 0700) == 0);
 356         assert_se(mkdir(absolute_dirs[1], 0700) == 0);
 357         assert_se(symlink("dir2", absolute_dirs[2]) == 0);
 358
 359         path_strv_resolve(search_dirs, tmp_dir);
 360         assert_se(streq(search_dirs[0], "/dir1"));
 361         assert_se(streq(search_dirs[1], "/dir2"));
 362         assert_se(streq(search_dirs[2], "/dir2"));
 363
 364         assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
 365 }
 366
 367 static void test_path_startswith(void) {
 368         const char *p;
 369
 370         log_info("/* %s */", __func__);
 371
 372         p = path_startswith("/foo/bar/barfoo/", "/foo");
 373         assert_se(streq_ptr(p, "bar/barfoo/"));
 374
 375         p = path_startswith("/foo/bar/barfoo/", "/foo/");
 376         assert_se(streq_ptr(p, "bar/barfoo/"));
 377
 378         p = path_startswith("/foo/bar/barfoo/", "/");
 379         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 380
 381         p = path_startswith("/foo/bar/barfoo/", "////");
 382         assert_se(streq_ptr(p, "foo/bar/barfoo/"));
 383
 384         p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
 385         assert_se(streq_ptr(p, ""));
 386
 387         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
 388         assert_se(streq_ptr(p, ""));
 389
 390         p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
 391         assert_se(streq_ptr(p, ""));
 392
 393         p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
 394         assert_se(streq_ptr(p, ""));
 395
 396         p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
 397         assert_se(streq_ptr(p, ""));
 398
 399         p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
 400         assert_se(streq_ptr(p, ""));
 401
 402         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
 403         assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
 404         assert_se(!path_startswith("/foo/bar/barfoo/", ""));
 405         assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
 406         assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
 407 }
 408
 409 static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
 410         _cleanup_free_ char *s = NULL;
 411         const char *t;
 412
 413         assert_se(s = path_join(r, p));
 414         assert_se(path_equal_ptr(s, expected));
 415
 416         t = prefix_roota(r, p);
 417         assert_se(t);
 418         assert_se(path_equal_ptr(t, expected));
 419 }
 420
 421 static void test_prefix_root(void) {
 422         log_info("/* %s */", __func__);
 423
 424         test_prefix_root_one("/", "/foo", "/foo");
 425         test_prefix_root_one(NULL, "/foo", "/foo");
 426         test_prefix_root_one("", "/foo", "/foo");
 427         test_prefix_root_one("///", "/foo", "/foo");
 428         test_prefix_root_one("/", "////foo", "/foo");
 429         test_prefix_root_one(NULL, "////foo", "/foo");
 430         test_prefix_root_one("/", "foo", "/foo");
 431         test_prefix_root_one("", "foo", "foo");
 432         test_prefix_root_one(NULL, "foo", "foo");
 433
 434         test_prefix_root_one("/foo", "/bar", "/foo/bar");
 435         test_prefix_root_one("/foo", "bar", "/foo/bar");
 436         test_prefix_root_one("foo", "bar", "foo/bar");
 437         test_prefix_root_one("/foo/", "/bar", "/foo/bar");
 438         test_prefix_root_one("/foo/", "//bar", "/foo/bar");
 439         test_prefix_root_one("/foo///", "//bar", "/foo/bar");
 440 }
 441
 442 static void test_file_in_same_dir(void) {
 443         char *t;
 444
 445         log_info("/* %s */", __func__);
 446
 447         t = file_in_same_dir("/", "a");
 448         assert_se(streq(t, "/a"));
 449         free(t);
 450
 451         t = file_in_same_dir("/", "/a");
 452         assert_se(streq(t, "/a"));
 453         free(t);
 454
 455         t = file_in_same_dir("", "a");
 456         assert_se(streq(t, "a"));
 457         free(t);
 458
 459         t = file_in_same_dir("a/", "a");
 460         assert_se(streq(t, "a/a"));
 461         free(t);
 462
 463         t = file_in_same_dir("bar/foo", "bar");
 464         assert_se(streq(t, "bar/bar"));
 465         free(t);
 466 }
 467
 468 static void test_last_path_component(void) {
 469         assert_se(last_path_component(NULL) == NULL);
 470         assert_se(streq(last_path_component("a/b/c"), "c"));
 471         assert_se(streq(last_path_component("a/b/c/"), "c/"));
 472         assert_se(streq(last_path_component("/"), "/"));
 473         assert_se(streq(last_path_component("//"), "/"));
 474         assert_se(streq(last_path_component("///"), "/"));
 475         assert_se(streq(last_path_component("."), "."));
 476         assert_se(streq(last_path_component("./."), "."));
 477         assert_se(streq(last_path_component("././"), "./"));
 478         assert_se(streq(last_path_component("././/"), ".//"));
 479         assert_se(streq(last_path_component("/foo/a"), "a"));
 480         assert_se(streq(last_path_component("/foo/a/"), "a/"));
 481         assert_se(streq(last_path_component(""), ""));
 482         assert_se(streq(last_path_component("a"), "a"));
 483         assert_se(streq(last_path_component("a/"), "a/"));
 484         assert_se(streq(last_path_component("/a"), "a"));
 485         assert_se(streq(last_path_component("/a/"), "a/"));
 486 }
 487
 488 static void test_path_extract_filename_one(const char *input, const char *output, int ret) {
 489         _cleanup_free_ char *k = NULL;
 490         int r;
 491
 492         r = path_extract_filename(input, &k);
 493         log_info("%s → %s/%s [expected: %s/%s]", strnull(input), strnull(k), strerror_safe(r), strnull(output), strerror_safe(ret));
 494         assert_se(streq_ptr(k, output));
 495         assert_se(r == ret);
 496 }
 497
 498 static void test_path_extract_filename(void) {
 499         log_info("/* %s */", __func__);
 500
 501         test_path_extract_filename_one(NULL, NULL, -EINVAL);
 502         test_path_extract_filename_one("a/b/c", "c", 0);
 503         test_path_extract_filename_one("a/b/c/", "c", 0);
 504         test_path_extract_filename_one("/", NULL, -EINVAL);
 505         test_path_extract_filename_one("//", NULL, -EINVAL);
 506         test_path_extract_filename_one("///", NULL, -EINVAL);
 507         test_path_extract_filename_one(".", NULL, -EINVAL);
 508         test_path_extract_filename_one("./.", NULL, -EINVAL);
 509         test_path_extract_filename_one("././", NULL, -EINVAL);
 510         test_path_extract_filename_one("././/", NULL, -EINVAL);
 511         test_path_extract_filename_one("/foo/a", "a", 0);
 512         test_path_extract_filename_one("/foo/a/", "a", 0);
 513         test_path_extract_filename_one("", NULL, -EINVAL);
 514         test_path_extract_filename_one("a", "a", 0);
 515         test_path_extract_filename_one("a/", "a", 0);
 516         test_path_extract_filename_one("/a", "a", 0);
 517         test_path_extract_filename_one("/a/", "a", 0);
 518         test_path_extract_filename_one("/////////////a/////////////", "a", 0);
 519         test_path_extract_filename_one("xx/.", NULL, -EINVAL);
 520         test_path_extract_filename_one("xx/..", NULL, -EINVAL);
 521         test_path_extract_filename_one("..", NULL, -EINVAL);
 522         test_path_extract_filename_one("/..", NULL, -EINVAL);
 523         test_path_extract_filename_one("../", NULL, -EINVAL);
 524         test_path_extract_filename_one(".", NULL, -EINVAL);
 525         test_path_extract_filename_one("/.", NULL, -EINVAL);
 526         test_path_extract_filename_one("./", NULL, -EINVAL);
 527 }
 528
 529 static void test_filename_is_valid(void) {
 530         char foo[FILENAME_MAX+2];
 531         int i;
 532
 533         log_info("/* %s */", __func__);
 534
 535         assert_se(!filename_is_valid(""));
 536         assert_se(!filename_is_valid("/bar/foo"));
 537         assert_se(!filename_is_valid("/"));
 538         assert_se(!filename_is_valid("."));
 539         assert_se(!filename_is_valid(".."));
 540
 541         for (i=0; i<FILENAME_MAX+1; i++)
 542                 foo[i] = 'a';
 543         foo[FILENAME_MAX+1] = '\0';
 544
 545         assert_se(!filename_is_valid(foo));
 546
 547         assert_se(filename_is_valid("foo_bar-333"));
 548         assert_se(filename_is_valid("o.o"));
 549 }
 550
 551 static void test_hidden_or_backup_file(void) {
 552         log_info("/* %s */", __func__);
 553
 554         assert_se(hidden_or_backup_file(".hidden"));
 555         assert_se(hidden_or_backup_file("..hidden"));
 556         assert_se(!hidden_or_backup_file("hidden."));
 557
 558         assert_se(hidden_or_backup_file("backup~"));
 559         assert_se(hidden_or_backup_file(".backup~"));
 560
 561         assert_se(hidden_or_backup_file("lost+found"));
 562         assert_se(hidden_or_backup_file("aquota.user"));
 563         assert_se(hidden_or_backup_file("aquota.group"));
 564
 565         assert_se(hidden_or_backup_file("test.rpmnew"));
 566         assert_se(hidden_or_backup_file("test.dpkg-old"));
 567         assert_se(hidden_or_backup_file("test.dpkg-remove"));
 568         assert_se(hidden_or_backup_file("test.swp"));
 569
 570         assert_se(!hidden_or_backup_file("test.rpmnew."));
 571         assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
 572 }
 573
 574 static void test_systemd_installation_has_version(const char *path) {
 575         int r;
 576         const unsigned versions[] = {0, 231, PROJECT_VERSION, 999};
 577         unsigned i;
 578
 579         log_info("/* %s */", __func__);
 580
 581         for (i = 0; i < ELEMENTSOF(versions); i++) {
 582                 r = systemd_installation_has_version(path, versions[i]);
 583                 assert_se(r >= 0);
 584                 log_info("%s has systemd >= %u: %s",
 585                          path ?: "Current installation", versions[i], yes_no(r));
 586         }
 587 }
 588
 589 static void test_skip_dev_prefix(void) {
 590         log_info("/* %s */", __func__);
 591
 592         assert_se(streq(skip_dev_prefix("/"), "/"));
 593         assert_se(streq(skip_dev_prefix("/dev"), ""));
 594         assert_se(streq(skip_dev_prefix("/dev/"), ""));
 595         assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
 596         assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
 597         assert_se(streq(skip_dev_prefix("//dev"), ""));
 598         assert_se(streq(skip_dev_prefix("//dev//"), ""));
 599         assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
 600         assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
 601         assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
 602         assert_se(streq(skip_dev_prefix("foo"), "foo"));
 603 }
 604
 605 static void test_empty_or_root(void) {
 606         log_info("/* %s */", __func__);
 607
 608         assert_se(empty_or_root(NULL));
 609         assert_se(empty_or_root(""));
 610         assert_se(empty_or_root("/"));
 611         assert_se(empty_or_root("//"));
 612         assert_se(empty_or_root("///"));
 613         assert_se(empty_or_root("/////////////////"));
 614         assert_se(!empty_or_root("xxx"));
 615         assert_se(!empty_or_root("/xxx"));
 616         assert_se(!empty_or_root("/xxx/"));
 617         assert_se(!empty_or_root("//yy//"));
 618 }
 619
 620 static void test_path_startswith_set(void) {
 621         log_info("/* %s */", __func__);
 622
 623         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/bar", "/zzz"), ""));
 624         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/", "/zzz"), "bar"));
 625         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo", "/zzz"), "bar"));
 626         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/", "/zzz"), "foo/bar"));
 627         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "", "/zzz"), NULL));
 628
 629         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/bar", "/zzz"), NULL));
 630         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/", "/zzz"), "bar2"));
 631         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo", "/zzz"), "bar2"));
 632         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/", "/zzz"), "foo/bar2"));
 633         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "", "/zzz"), NULL));
 634
 635         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/bar", "/zzz"), NULL));
 636         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/", "/zzz"), NULL));
 637         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo", "/zzz"), NULL));
 638         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/", "/zzz"), "foo2/bar"));
 639         assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "", "/zzz"), NULL));
 640 }
 641
 642 static void test_path_startswith_strv(void) {
 643         log_info("/* %s */", __func__);
 644
 645         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), ""));
 646         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar"));
 647         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar"));
 648         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar"));
 649         assert_se(streq_ptr(path_startswith_strv("/foo/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 650
 651         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
 652         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), "bar2"));
 653         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/foo", "/zzz")), "bar2"));
 654         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo/bar2"));
 655         assert_se(streq_ptr(path_startswith_strv("/foo/bar2", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 656
 657         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/bar", "/zzz")), NULL));
 658         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo/", "/zzz")), NULL));
 659         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/foo", "/zzz")), NULL));
 660         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "/", "/zzz")), "foo2/bar"));
 661         assert_se(streq_ptr(path_startswith_strv("/foo2/bar", STRV_MAKE("/foo/quux", "", "/zzz")), NULL));
 662 }
 663
 664 int main(int argc, char **argv) {
 665         test_setup_logging(LOG_DEBUG);
 666
 667         test_print_paths();
 668         test_path();
 669         test_path_equal_root();
 670         test_find_binary(argv[0]);
 671         test_prefixes();
 672         test_path_join();
 673         test_fsck_exists();
 674         test_make_relative();
 675         test_strv_resolve();
 676         test_path_startswith();
 677         test_prefix_root();
 678         test_file_in_same_dir();
 679         test_last_path_component();
 680         test_path_extract_filename();
 681         test_filename_is_valid();
 682         test_hidden_or_backup_file();
 683         test_skip_dev_prefix();
 684         test_empty_or_root();
 685         test_path_startswith_set();
 686         test_path_startswith_strv();
 687
 688         test_systemd_installation_has_version(argv[1]); /* NULL is OK */
 689
 690         return 0;
 691 }