summaryrefslogtreecommitdiffstats
path: root/src/test/test-path-util.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/test-path-util.c')
-rw-r--r--src/test/test-path-util.c619
1 files changed, 619 insertions, 0 deletions
diff --git a/src/test/test-path-util.c b/src/test/test-path-util.c
new file mode 100644
index 0000000..c64ca7b
--- /dev/null
+++ b/src/test/test-path-util.c
@@ -0,0 +1,619 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <stdio.h>
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "macro.h"
+#include "mountpoint-util.h"
+#include "path-util.h"
+#include "rm-rf.h"
+#include "stat-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "tests.h"
+#include "util.h"
+
+#define test_path_compare(a, b, result) { \
+ assert_se(path_compare(a, b) == result); \
+ assert_se(path_compare(b, a) == -result); \
+ assert_se(path_equal(a, b) == !result); \
+ assert_se(path_equal(b, a) == !result); \
+ }
+
+static void test_path_simplify(const char *in, const char *out, const char *out_dot) {
+ char *p;
+
+ p = strdupa(in);
+ assert_se(streq(path_simplify(p, false), out));
+
+ p = strdupa(in);
+ assert_se(streq(path_simplify(p, true), out_dot));
+}
+
+static void test_path(void) {
+ _cleanup_close_ int fd = -1;
+
+ test_path_compare("/goo", "/goo", 0);
+ test_path_compare("/goo", "/goo", 0);
+ test_path_compare("//goo", "/goo", 0);
+ test_path_compare("//goo/////", "/goo", 0);
+ test_path_compare("goo/////", "goo", 0);
+
+ test_path_compare("/goo/boo", "/goo//boo", 0);
+ test_path_compare("//goo/boo", "/goo/boo//", 0);
+
+ test_path_compare("/", "///", 0);
+
+ test_path_compare("/x", "x/", 1);
+ test_path_compare("x/", "/", -1);
+
+ test_path_compare("/x/./y", "x/y", 1);
+ test_path_compare("x/.y", "x/y", -1);
+
+ test_path_compare("foo", "/foo", -1);
+ test_path_compare("/foo", "/foo/bar", -1);
+ test_path_compare("/foo/aaa", "/foo/b", -1);
+ test_path_compare("/foo/aaa", "/foo/b/a", -1);
+ test_path_compare("/foo/a", "/foo/aaa", -1);
+ test_path_compare("/foo/a/b", "/foo/aaa", -1);
+
+ assert_se(path_is_absolute("/"));
+ assert_se(!path_is_absolute("./"));
+
+ assert_se(is_path("/dir"));
+ assert_se(is_path("a/b"));
+ assert_se(!is_path("."));
+
+ assert_se(streq(basename("./aa/bb/../file.da."), "file.da."));
+ assert_se(streq(basename("/aa///.file"), ".file"));
+ assert_se(streq(basename("/aa///file..."), "file..."));
+ assert_se(streq(basename("file.../"), ""));
+
+ fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY|O_NOCTTY);
+ assert_se(fd >= 0);
+ assert_se(fd_is_mount_point(fd, "/", 0) > 0);
+
+ test_path_simplify("aaa/bbb////ccc", "aaa/bbb/ccc", "aaa/bbb/ccc");
+ test_path_simplify("//aaa/.////ccc", "/aaa/./ccc", "/aaa/ccc");
+ test_path_simplify("///", "/", "/");
+ test_path_simplify("///.//", "/.", "/");
+ test_path_simplify("///.//.///", "/./.", "/");
+ test_path_simplify("////.././///../.", "/.././../.", "/../..");
+ test_path_simplify(".", ".", ".");
+ test_path_simplify("./", ".", ".");
+ test_path_simplify(".///.//./.", "./././.", ".");
+ test_path_simplify(".///.//././/", "./././.", ".");
+ test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/.",
+ "/./aaa/././.bbb/../c./d.dd/..eeee/.",
+ "/aaa/.bbb/../c./d.dd/..eeee");
+ test_path_simplify("//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
+ "/./aaa/././.bbb/../c./d.dd/..eeee/..",
+ "/aaa/.bbb/../c./d.dd/..eeee/..");
+ test_path_simplify(".//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
+ "././aaa/././.bbb/../c./d.dd/..eeee/..",
+ "aaa/.bbb/../c./d.dd/..eeee/..");
+ test_path_simplify("..//./aaa///.//./.bbb/..///c.//d.dd///..eeee/..",
+ ".././aaa/././.bbb/../c./d.dd/..eeee/..",
+ "../aaa/.bbb/../c./d.dd/..eeee/..");
+
+ assert_se(PATH_IN_SET("/bin", "/", "/bin", "/foo"));
+ assert_se(PATH_IN_SET("/bin", "/bin"));
+ assert_se(PATH_IN_SET("/bin", "/foo/bar", "/bin"));
+ assert_se(PATH_IN_SET("/", "/", "/", "/foo/bar"));
+ assert_se(!PATH_IN_SET("/", "/abc", "/def"));
+
+ assert_se(path_equal_ptr(NULL, NULL));
+ assert_se(path_equal_ptr("/a", "/a"));
+ assert_se(!path_equal_ptr("/a", "/b"));
+ assert_se(!path_equal_ptr("/a", NULL));
+ assert_se(!path_equal_ptr(NULL, "/a"));
+}
+
+static void test_path_equal_root(void) {
+ /* Nail down the details of how path_equal("/", ...) works. */
+
+ assert_se(path_equal("/", "/"));
+ assert_se(path_equal("/", "//"));
+
+ assert_se(!path_equal("/", "/./"));
+ assert_se(!path_equal("/", "/../"));
+
+ assert_se(!path_equal("/", "/.../"));
+
+ /* Make sure that files_same works as expected. */
+
+ assert_se(files_same("/", "/", 0) > 0);
+ assert_se(files_same("/", "/", AT_SYMLINK_NOFOLLOW) > 0);
+ assert_se(files_same("/", "//", 0) > 0);
+ assert_se(files_same("/", "//", AT_SYMLINK_NOFOLLOW) > 0);
+
+ assert_se(files_same("/", "/./", 0) > 0);
+ assert_se(files_same("/", "/./", AT_SYMLINK_NOFOLLOW) > 0);
+ assert_se(files_same("/", "/../", 0) > 0);
+ assert_se(files_same("/", "/../", AT_SYMLINK_NOFOLLOW) > 0);
+
+ assert_se(files_same("/", "/.../", 0) == -ENOENT);
+ assert_se(files_same("/", "/.../", AT_SYMLINK_NOFOLLOW) == -ENOENT);
+
+ /* The same for path_equal_or_files_same. */
+
+ assert_se(path_equal_or_files_same("/", "/", 0));
+ assert_se(path_equal_or_files_same("/", "/", AT_SYMLINK_NOFOLLOW));
+ assert_se(path_equal_or_files_same("/", "//", 0));
+ assert_se(path_equal_or_files_same("/", "//", AT_SYMLINK_NOFOLLOW));
+
+ assert_se(path_equal_or_files_same("/", "/./", 0));
+ assert_se(path_equal_or_files_same("/", "/./", AT_SYMLINK_NOFOLLOW));
+ assert_se(path_equal_or_files_same("/", "/../", 0));
+ assert_se(path_equal_or_files_same("/", "/../", AT_SYMLINK_NOFOLLOW));
+
+ assert_se(!path_equal_or_files_same("/", "/.../", 0));
+ assert_se(!path_equal_or_files_same("/", "/.../", AT_SYMLINK_NOFOLLOW));
+}
+
+static void test_find_binary(const char *self) {
+ char *p;
+
+ assert_se(find_binary("/bin/sh", &p) == 0);
+ puts(p);
+ assert_se(path_equal(p, "/bin/sh"));
+ free(p);
+
+ assert_se(find_binary(self, &p) == 0);
+ puts(p);
+ /* libtool might prefix the binary name with "lt-" */
+ assert_se(endswith(p, "/lt-test-path-util") || endswith(p, "/test-path-util"));
+ assert_se(path_is_absolute(p));
+ free(p);
+
+ assert_se(find_binary("sh", &p) == 0);
+ puts(p);
+ assert_se(endswith(p, "/sh"));
+ assert_se(path_is_absolute(p));
+ free(p);
+
+ assert_se(find_binary("xxxx-xxxx", &p) == -ENOENT);
+ assert_se(find_binary("/some/dir/xxxx-xxxx", &p) == -ENOENT);
+}
+
+static void test_prefixes(void) {
+ static const char* values[] = { "/a/b/c/d", "/a/b/c", "/a/b", "/a", "", NULL};
+ unsigned i;
+ char s[PATH_MAX];
+ bool b;
+
+ i = 0;
+ PATH_FOREACH_PREFIX_MORE(s, "/a/b/c/d") {
+ log_error("---%s---", s);
+ assert_se(streq(s, values[i++]));
+ }
+ assert_se(values[i] == NULL);
+
+ i = 1;
+ PATH_FOREACH_PREFIX(s, "/a/b/c/d") {
+ log_error("---%s---", s);
+ assert_se(streq(s, values[i++]));
+ }
+ assert_se(values[i] == NULL);
+
+ i = 0;
+ PATH_FOREACH_PREFIX_MORE(s, "////a////b////c///d///////")
+ assert_se(streq(s, values[i++]));
+ assert_se(values[i] == NULL);
+
+ i = 1;
+ PATH_FOREACH_PREFIX(s, "////a////b////c///d///////")
+ assert_se(streq(s, values[i++]));
+ assert_se(values[i] == NULL);
+
+ PATH_FOREACH_PREFIX(s, "////")
+ assert_not_reached("Wut?");
+
+ b = false;
+ PATH_FOREACH_PREFIX_MORE(s, "////") {
+ assert_se(!b);
+ assert_se(streq(s, ""));
+ b = true;
+ }
+ assert_se(b);
+
+ PATH_FOREACH_PREFIX(s, "")
+ assert_not_reached("wut?");
+
+ b = false;
+ PATH_FOREACH_PREFIX_MORE(s, "") {
+ assert_se(!b);
+ assert_se(streq(s, ""));
+ b = true;
+ }
+}
+
+static void test_path_join(void) {
+
+#define test_join(expected, ...) { \
+ _cleanup_free_ char *z = NULL; \
+ z = path_join(__VA_ARGS__); \
+ log_debug("got \"%s\", expected \"%s\"", z, expected); \
+ assert_se(streq(z, expected)); \
+ }
+
+ test_join("/root/a/b/c", "/root", "/a/b", "/c");
+ test_join("/root/a/b/c", "/root", "a/b", "c");
+ test_join("/root/a/b/c", "/root", "/a/b", "c");
+ test_join("/root/c", "/root", "/", "c");
+ test_join("/root/", "/root", "/", NULL);
+
+ test_join("/a/b/c", "", "/a/b", "/c");
+ test_join("a/b/c", "", "a/b", "c");
+ test_join("/a/b/c", "", "/a/b", "c");
+ test_join("/c", "", "/", "c");
+ test_join("/", "", "/", NULL);
+
+ test_join("/a/b/c", NULL, "/a/b", "/c");
+ test_join("a/b/c", NULL, "a/b", "c");
+ test_join("/a/b/c", NULL, "/a/b", "c");
+ test_join("/c", NULL, "/", "c");
+ test_join("/", NULL, "/", NULL);
+
+ test_join("", "", NULL);
+ test_join("", NULL, "");
+ test_join("", NULL, NULL);
+
+ test_join("foo/bar", "foo", "bar");
+ test_join("foo/bar", "", "foo", "bar");
+ test_join("foo/bar", NULL, "foo", NULL, "bar");
+ test_join("foo/bar", "", "foo", "", "bar", "");
+ test_join("foo/bar", "", "", "", "", "foo", "", "", "", "bar", "", "", "");
+
+ test_join("//foo///bar//", "", "/", "", "/foo/", "", "/", "", "/bar/", "", "/", "");
+ test_join("/foo/bar/", "/", "foo", "/", "bar", "/");
+ test_join("foo/bar/baz", "foo", "bar", "baz");
+ test_join("foo/bar/baz", "foo/", "bar", "/baz");
+ test_join("foo//bar//baz", "foo/", "/bar/", "/baz");
+ test_join("//foo////bar////baz//", "//foo/", "///bar/", "///baz//");
+}
+
+static void test_fsck_exists(void) {
+ /* Ensure we use a sane default for PATH. */
+ unsetenv("PATH");
+
+ /* fsck.minix is provided by util-linux and will probably exist. */
+ assert_se(fsck_exists("minix") == 1);
+
+ assert_se(fsck_exists("AbCdE") == 0);
+ assert_se(fsck_exists("/../bin/") == 0);
+}
+
+static void test_make_relative(void) {
+ char *result;
+
+ assert_se(path_make_relative("some/relative/path", "/some/path", &result) < 0);
+ assert_se(path_make_relative("/some/path", "some/relative/path", &result) < 0);
+ assert_se(path_make_relative("/some/dotdot/../path", "/some/path", &result) < 0);
+
+#define test(from_dir, to_path, expected) { \
+ _cleanup_free_ char *z = NULL; \
+ path_make_relative(from_dir, to_path, &z); \
+ assert_se(streq(z, expected)); \
+ }
+
+ test("/", "/", ".");
+ test("/", "/some/path", "some/path");
+ test("/some/path", "/some/path", ".");
+ test("/some/path", "/some/path/in/subdir", "in/subdir");
+ test("/some/path", "/", "../..");
+ test("/some/path", "/some/other/path", "../other/path");
+ test("/some/path/./dot", "/some/further/path", "../../further/path");
+ test("//extra.//.//./.slashes//./won't////fo.ol///anybody//", "/././/extra././/.slashes////ar.e/.just/././.fine///", "../../../ar.e/.just/.fine");
+}
+
+static void test_strv_resolve(void) {
+ char tmp_dir[] = "/tmp/test-path-util-XXXXXX";
+ _cleanup_strv_free_ char **search_dirs = NULL;
+ _cleanup_strv_free_ char **absolute_dirs = NULL;
+ char **d;
+
+ assert_se(mkdtemp(tmp_dir) != NULL);
+
+ search_dirs = strv_new("/dir1", "/dir2", "/dir3");
+ assert_se(search_dirs);
+ STRV_FOREACH(d, search_dirs) {
+ char *p = strappend(tmp_dir, *d);
+ assert_se(p);
+ assert_se(strv_push(&absolute_dirs, p) == 0);
+ }
+
+ assert_se(mkdir(absolute_dirs[0], 0700) == 0);
+ assert_se(mkdir(absolute_dirs[1], 0700) == 0);
+ assert_se(symlink("dir2", absolute_dirs[2]) == 0);
+
+ path_strv_resolve(search_dirs, tmp_dir);
+ assert_se(streq(search_dirs[0], "/dir1"));
+ assert_se(streq(search_dirs[1], "/dir2"));
+ assert_se(streq(search_dirs[2], "/dir2"));
+
+ assert_se(rm_rf(tmp_dir, REMOVE_ROOT|REMOVE_PHYSICAL) == 0);
+}
+
+static void test_path_startswith(void) {
+ const char *p;
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo");
+ assert_se(streq_ptr(p, "bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/");
+ assert_se(streq_ptr(p, "bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/");
+ assert_se(streq_ptr(p, "foo/bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "////");
+ assert_se(streq_ptr(p, "foo/bar/barfoo/"));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo//bar/////barfoo///");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo////");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar///barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo////bar/barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "////foo/bar/barfoo/");
+ assert_se(streq_ptr(p, ""));
+
+ p = path_startswith("/foo/bar/barfoo/", "/foo/bar/barfoo");
+ assert_se(streq_ptr(p, ""));
+
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa/"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/foo/bar/barfooa"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", ""));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/bar/foo"));
+ assert_se(!path_startswith("/foo/bar/barfoo/", "/f/b/b/"));
+}
+
+static void test_prefix_root_one(const char *r, const char *p, const char *expected) {
+ _cleanup_free_ char *s = NULL;
+ const char *t;
+
+ assert_se(s = prefix_root(r, p));
+ assert_se(streq_ptr(s, expected));
+
+ t = prefix_roota(r, p);
+ assert_se(t);
+ assert_se(streq_ptr(t, expected));
+}
+
+static void test_prefix_root(void) {
+ test_prefix_root_one("/", "/foo", "/foo");
+ test_prefix_root_one(NULL, "/foo", "/foo");
+ test_prefix_root_one("", "/foo", "/foo");
+ test_prefix_root_one("///", "/foo", "/foo");
+ test_prefix_root_one("/", "////foo", "/foo");
+ test_prefix_root_one(NULL, "////foo", "/foo");
+
+ test_prefix_root_one("/foo", "/bar", "/foo/bar");
+ test_prefix_root_one("/foo", "bar", "/foo/bar");
+ test_prefix_root_one("foo", "bar", "foo/bar");
+ test_prefix_root_one("/foo/", "/bar", "/foo/bar");
+ test_prefix_root_one("/foo/", "//bar", "/foo/bar");
+ test_prefix_root_one("/foo///", "//bar", "/foo/bar");
+}
+
+static void test_file_in_same_dir(void) {
+ char *t;
+
+ t = file_in_same_dir("/", "a");
+ assert_se(streq(t, "/a"));
+ free(t);
+
+ t = file_in_same_dir("/", "/a");
+ assert_se(streq(t, "/a"));
+ free(t);
+
+ t = file_in_same_dir("", "a");
+ assert_se(streq(t, "a"));
+ free(t);
+
+ t = file_in_same_dir("a/", "a");
+ assert_se(streq(t, "a/a"));
+ free(t);
+
+ t = file_in_same_dir("bar/foo", "bar");
+ assert_se(streq(t, "bar/bar"));
+ free(t);
+}
+
+static void test_last_path_component(void) {
+ assert_se(last_path_component(NULL) == NULL);
+ assert_se(streq(last_path_component("a/b/c"), "c"));
+ assert_se(streq(last_path_component("a/b/c/"), "c/"));
+ assert_se(streq(last_path_component("/"), "/"));
+ assert_se(streq(last_path_component("//"), "/"));
+ assert_se(streq(last_path_component("///"), "/"));
+ assert_se(streq(last_path_component("."), "."));
+ assert_se(streq(last_path_component("./."), "."));
+ assert_se(streq(last_path_component("././"), "./"));
+ assert_se(streq(last_path_component("././/"), ".//"));
+ assert_se(streq(last_path_component("/foo/a"), "a"));
+ assert_se(streq(last_path_component("/foo/a/"), "a/"));
+ assert_se(streq(last_path_component(""), ""));
+ assert_se(streq(last_path_component("a"), "a"));
+ assert_se(streq(last_path_component("a/"), "a/"));
+ assert_se(streq(last_path_component("/a"), "a"));
+ assert_se(streq(last_path_component("/a/"), "a/"));
+}
+
+static void test_path_extract_filename_one(const char *input, const char *output, int ret) {
+ _cleanup_free_ char *k = NULL;
+ int r;
+
+ r = path_extract_filename(input, &k);
+ log_info("%s → %s/%s [expected: %s/%s]", strnull(input), strnull(k), strerror(-r), strnull(output), strerror(-ret));
+ assert_se(streq_ptr(k, output));
+ assert_se(r == ret);
+}
+
+static void test_path_extract_filename(void) {
+ test_path_extract_filename_one(NULL, NULL, -EINVAL);
+ test_path_extract_filename_one("a/b/c", "c", 0);
+ test_path_extract_filename_one("a/b/c/", "c", 0);
+ test_path_extract_filename_one("/", NULL, -EINVAL);
+ test_path_extract_filename_one("//", NULL, -EINVAL);
+ test_path_extract_filename_one("///", NULL, -EINVAL);
+ test_path_extract_filename_one(".", NULL, -EINVAL);
+ test_path_extract_filename_one("./.", NULL, -EINVAL);
+ test_path_extract_filename_one("././", NULL, -EINVAL);
+ test_path_extract_filename_one("././/", NULL, -EINVAL);
+ test_path_extract_filename_one("/foo/a", "a", 0);
+ test_path_extract_filename_one("/foo/a/", "a", 0);
+ test_path_extract_filename_one("", NULL, -EINVAL);
+ test_path_extract_filename_one("a", "a", 0);
+ test_path_extract_filename_one("a/", "a", 0);
+ test_path_extract_filename_one("/a", "a", 0);
+ test_path_extract_filename_one("/a/", "a", 0);
+ test_path_extract_filename_one("/////////////a/////////////", "a", 0);
+ test_path_extract_filename_one("xx/.", NULL, -EINVAL);
+ test_path_extract_filename_one("xx/..", NULL, -EINVAL);
+ test_path_extract_filename_one("..", NULL, -EINVAL);
+ test_path_extract_filename_one("/..", NULL, -EINVAL);
+ test_path_extract_filename_one("../", NULL, -EINVAL);
+ test_path_extract_filename_one(".", NULL, -EINVAL);
+ test_path_extract_filename_one("/.", NULL, -EINVAL);
+ test_path_extract_filename_one("./", NULL, -EINVAL);
+}
+
+static void test_filename_is_valid(void) {
+ char foo[FILENAME_MAX+2];
+ int i;
+
+ assert_se(!filename_is_valid(""));
+ assert_se(!filename_is_valid("/bar/foo"));
+ assert_se(!filename_is_valid("/"));
+ assert_se(!filename_is_valid("."));
+ assert_se(!filename_is_valid(".."));
+
+ for (i=0; i<FILENAME_MAX+1; i++)
+ foo[i] = 'a';
+ foo[FILENAME_MAX+1] = '\0';
+
+ assert_se(!filename_is_valid(foo));
+
+ assert_se(filename_is_valid("foo_bar-333"));
+ assert_se(filename_is_valid("o.o"));
+}
+
+static void test_hidden_or_backup_file(void) {
+ assert_se(hidden_or_backup_file(".hidden"));
+ assert_se(hidden_or_backup_file("..hidden"));
+ assert_se(!hidden_or_backup_file("hidden."));
+
+ assert_se(hidden_or_backup_file("backup~"));
+ assert_se(hidden_or_backup_file(".backup~"));
+
+ assert_se(hidden_or_backup_file("lost+found"));
+ assert_se(hidden_or_backup_file("aquota.user"));
+ assert_se(hidden_or_backup_file("aquota.group"));
+
+ assert_se(hidden_or_backup_file("test.rpmnew"));
+ assert_se(hidden_or_backup_file("test.dpkg-old"));
+ assert_se(hidden_or_backup_file("test.dpkg-remove"));
+ assert_se(hidden_or_backup_file("test.swp"));
+
+ assert_se(!hidden_or_backup_file("test.rpmnew."));
+ assert_se(!hidden_or_backup_file("test.dpkg-old.foo"));
+}
+
+static void test_systemd_installation_has_version(const char *path) {
+ int r;
+ const unsigned versions[] = {0, 231, PROJECT_VERSION, 999};
+ unsigned i;
+
+ for (i = 0; i < ELEMENTSOF(versions); i++) {
+ r = systemd_installation_has_version(path, versions[i]);
+ assert_se(r >= 0);
+ log_info("%s has systemd >= %u: %s",
+ path ?: "Current installation", versions[i], yes_no(r));
+ }
+}
+
+static void test_skip_dev_prefix(void) {
+
+ assert_se(streq(skip_dev_prefix("/"), "/"));
+ assert_se(streq(skip_dev_prefix("/dev"), ""));
+ assert_se(streq(skip_dev_prefix("/dev/"), ""));
+ assert_se(streq(skip_dev_prefix("/dev/foo"), "foo"));
+ assert_se(streq(skip_dev_prefix("/dev/foo/bar"), "foo/bar"));
+ assert_se(streq(skip_dev_prefix("//dev"), ""));
+ assert_se(streq(skip_dev_prefix("//dev//"), ""));
+ assert_se(streq(skip_dev_prefix("/dev///foo"), "foo"));
+ assert_se(streq(skip_dev_prefix("///dev///foo///bar"), "foo///bar"));
+ assert_se(streq(skip_dev_prefix("//foo"), "//foo"));
+ assert_se(streq(skip_dev_prefix("foo"), "foo"));
+}
+
+static void test_empty_or_root(void) {
+ assert_se(empty_or_root(NULL));
+ assert_se(empty_or_root(""));
+ assert_se(empty_or_root("/"));
+ assert_se(empty_or_root("//"));
+ assert_se(empty_or_root("///"));
+ assert_se(empty_or_root("/////////////////"));
+ assert_se(!empty_or_root("xxx"));
+ assert_se(!empty_or_root("/xxx"));
+ assert_se(!empty_or_root("/xxx/"));
+ assert_se(!empty_or_root("//yy//"));
+}
+
+static void test_path_startswith_set(void) {
+
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/bar", "/zzz"), ""));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo/", "/zzz"), "bar"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/foo", "/zzz"), "bar"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "/", "/zzz"), "foo/bar"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar", "/foo/quux", "", "/zzz"), NULL));
+
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/bar", "/zzz"), NULL));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo/", "/zzz"), "bar2"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/foo", "/zzz"), "bar2"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "/", "/zzz"), "foo/bar2"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo/bar2", "/foo/quux", "", "/zzz"), NULL));
+
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/bar", "/zzz"), NULL));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo/", "/zzz"), NULL));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/foo", "/zzz"), NULL));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "/", "/zzz"), "foo2/bar"));
+ assert_se(streq_ptr(PATH_STARTSWITH_SET("/foo2/bar", "/foo/quux", "", "/zzz"), NULL));
+}
+
+int main(int argc, char **argv) {
+ test_setup_logging(LOG_DEBUG);
+
+ test_path();
+ test_path_equal_root();
+ test_find_binary(argv[0]);
+ test_prefixes();
+ test_path_join();
+ test_fsck_exists();
+ test_make_relative();
+ test_strv_resolve();
+ test_path_startswith();
+ test_prefix_root();
+ test_file_in_same_dir();
+ test_last_path_component();
+ test_path_extract_filename();
+ test_filename_is_valid();
+ test_hidden_or_backup_file();
+ test_skip_dev_prefix();
+ test_empty_or_root();
+ test_path_startswith_set();
+
+ test_systemd_installation_has_version(argv[1]); /* NULL is OK */
+
+ return 0;
+}