Added a test file for the dirent-util.c

2 files changed, 214 insertions, 0 deletions

diff --git a/src/test/meson.build b/src/test/meson.build
index e9e9463790..96f934b219 100644
--- a/src/test/meson.build
+++ b/src/test/meson.build
@@ -74,6 +74,7 @@ simple_tests += files(
         'test-dev-setup.c',
         'test-device-nodes.c',
         'test-devnum-util.c',
+        'test-dirent-util.c',
         'test-dns-domain.c',
         'test-ellipsize.c',
         'test-env-file.c',
diff --git a/src/test/test-dirent-util.c b/src/test/test-dirent-util.c
new file mode 100644
index 0000000000..f9816973bf
--- /dev/null
+++ b/src/test/test-dirent-util.c
@@ -0,0 +1,213 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+#include "alloc-util.h"
+#include "dirent-util.h"
+#include "fs-util.h"
+#include "mkdir.h"
+#include "path-util.h"
+#include "rm-rf.h"
+#include "stat-util.h"
+#include "string-util.h"
+#include "tmpfile-util.h"
+#include "tests.h"
+
+TEST (test_dirent_ensure_type) {
+        int r, dir_fd;
+        static struct dirent de = {
+                .d_type = DT_UNKNOWN,
+                .d_name = "test",
+        };
+
+        assert_se(de.d_type == DT_UNKNOWN);
+
+        dir_fd = 0;
+        dirent_ensure_type(dir_fd, &de);
+
+        /* Test when d_name is "." or ".." */
+        strcpy(de.d_name, ".");
+        r = dirent_ensure_type(dir_fd, &de);
+        assert_se(r == 0);
+        assert_se(de.d_type == DT_DIR);
+
+        strcpy(de.d_name, "..");
+        r = dirent_ensure_type(dir_fd, &de);
+        assert_se(r == 0);
+        assert_se(de.d_type == DT_DIR);
+}
+
+TEST (test_dirent_is_file) {
+        _cleanup_(rm_rf_physical_and_freep) char *t = NULL;
+        const char *name, *dotfile, *name_alias, *bakfile, *tilda;
+        const struct dirent *de_reg, *de_lnk, *de_dot, *de_bak, *de_tilda;
+        DIR *dir;
+
+        static const struct dirent de_unknown = {
+                .d_type = DT_UNKNOWN,
+                .d_name = "test_unknown",
+        };
+
+        assert_se(mkdtemp_malloc(NULL, &t) >= 0);
+
+        name = strjoina(t, "/test.txt");
+        dotfile = strjoina(t, "/.hidden_file");
+        bakfile = strjoina(t, "/test.bak");
+        tilda = strjoina(t, "/test~");
+        name_alias = strjoina(t, "/test_link");
+
+        assert_se(touch(name) >= 0);
+        assert_se(touch(dotfile) >= 0);
+        assert_se(touch(bakfile) >= 0);
+        assert_se(touch(tilda) >= 0);
+
+        if (symlink(name, name_alias) < 0) {
+                assert_se(IN_SET(errno, EINVAL, ENOSYS, ENOTTY, EPERM));
+                log_tests_skipped_errno(errno, "symlink() not possible");
+        }
+
+        dir = opendir(t);
+        if (dir == NULL) {
+                log_error_errno(errno, "Failed to open directory '%s': %m", t);
+                exit(EXIT_FAILURE);
+        }
+
+        rewinddir(dir);
+        while ((de_reg = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_reg->d_name, "test.txt") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_lnk = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_lnk->d_name, "test_link") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_dot = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_dot->d_name, ".hidden_file") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_bak = readdir(dir)) != NULL)
+                if (strcmp(de_bak->d_name, "test.bak") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_tilda = readdir(dir)) != NULL)
+                if (strcmp(de_tilda->d_name, "test~") == 0)
+                        break;
+
+        /* Test when d_type is DT_REG, DT_LNK, or DT_UNKNOWN */
+        assert_se(dirent_is_file(de_reg) == true);
+        if (de_lnk)
+                assert_se(dirent_is_file(de_lnk) == true);
+        else
+                log_tests_skipped("de_lnk is NULL, skipping test");
+        assert_se(dirent_is_file(&de_unknown) == true);
+
+        /* Test for hidden files */
+        assert_se(dirent_is_file(de_dot) == false);
+        assert_se(dirent_is_file(de_bak) == false);
+        assert_se(dirent_is_file(de_tilda) == false);
+
+        closedir(dir);
+}
+
+TEST (test_dirent_is_file_with_suffix) {
+        _cleanup_(rm_rf_physical_and_freep) char *t = NULL;
+        const char *name, *dotfile, *name_alias, *dotdot, *chr;
+        const struct dirent *de_reg, *de_lnk, *de_dot, *de_dotdot, *de_chr;
+        DIR *dir;
+
+        static const struct dirent de_unknown = {
+                .d_type = DT_UNKNOWN,
+                .d_name = "test_unknown",
+        };
+
+        assert_se(mkdtemp_malloc(NULL, &t) >= 0);
+
+        name = strjoina(t, "/test.txt");
+        dotfile = strjoina(t, "/.hidden_file");
+        dotdot = strjoina(t, "/..dotdot");
+        chr = strjoina(t, "/test_chr");
+        name_alias = strjoina(t, "/test_link");
+
+        assert_se(touch(name) >= 0);
+        assert_se(touch(dotfile) >= 0);
+        assert_se(touch(dotdot) >= 0);
+        assert_se(mknod(chr, 0775 | S_IFCHR, makedev(0, 0)) >= 0);
+
+        if (symlink(name, name_alias) < 0) {
+                assert_se(IN_SET(errno, EINVAL, ENOSYS, ENOTTY, EPERM));
+                log_tests_skipped_errno(errno, "symlink() not possible");
+        }
+
+        dir = opendir(t);
+        if (dir == NULL) {
+                log_error_errno(errno, "Failed to open directory '%s': %m", t);
+                exit(EXIT_FAILURE);
+        }
+
+        rewinddir(dir);
+        while ((de_reg = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_reg->d_name, "test.txt") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_lnk = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_lnk->d_name, "test_link") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_dot = readdir_ensure_type(dir)) != NULL)
+                if (strcmp(de_dot->d_name, ".hidden_file") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_dotdot = readdir(dir)) != NULL)
+                if (strcmp(de_dotdot->d_name, "..dotdot") == 0)
+                        break;
+
+        rewinddir(dir);
+        while ((de_chr = readdir(dir)) != NULL)
+                if (strcmp(de_chr->d_name, "test_chr") == 0)
+                        break;
+
+        /* Test when d_type is not DT_REG, DT_LNK, or DT_UNKNOWN */
+        assert_se(!dirent_is_file_with_suffix(de_chr, NULL));
+
+        /* Test when suffix is NULL */
+        assert_se(dirent_is_file_with_suffix(de_reg, NULL) == true);
+        if (de_lnk)
+                assert_se(dirent_is_file_with_suffix(de_lnk, NULL) == true);
+        else
+                log_tests_skipped("de_lnk is NULL, skipping test");
+        assert_se(dirent_is_file_with_suffix(&de_unknown, NULL) == true);
+
+        /* Test for present suffix */
+        assert_se(dirent_is_file_with_suffix(de_reg, "txt") == true);
+        if (de_lnk)
+                assert_se(dirent_is_file_with_suffix(de_lnk, "link") == true);
+        else
+                log_tests_skipped("de_lnk is NULL, skipping test");
+        assert_se(dirent_is_file_with_suffix(&de_unknown, "unknown") == true);
+
+        /* Test for absent suffix */
+        assert_se(dirent_is_file_with_suffix(de_reg, "svg") == false);
+        if (de_lnk)
+                assert_se(dirent_is_file_with_suffix(de_lnk, "pdf") == false);
+        else
+                log_tests_skipped("de_lnk is NULL, skipping test");
+        assert_se(dirent_is_file_with_suffix(&de_unknown, "yes") == false);
+
+        /* Test for dot and dot-dot */
+        assert_se(dirent_is_file_with_suffix(de_dot, NULL) == false);
+        assert_se(dirent_is_file_with_suffix(de_dotdot, NULL) == false);
+
+        closedir(dir);
+}
+
+DEFINE_TEST_MAIN(LOG_INFO);