test: do not fail if mknod() fails in a build system

mknod fails in a Salsa container when building Debian packages, skip the check

Follow-up for 6a57d86bf9d7f8d6f5d339f57665dfb2e1d191c5

diff --git a/src/test/test-dirent-util.c b/src/test/test-dirent-util.c
index 8192a53e6fe0779f1a9e82c4aadd3b91b564e1fc..5d4886241da0b40faf91bf38f4b555ebebbb5ec7 100644 (file)
--- a/src/test/test-dirent-util.c
+++ b/src/test/test-dirent-util.c
@@ -136,7 +136,11 @@ TEST (test_dirent_is_file_with_suffix) {
         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);
+        /* This can fail in containers/build systems */
+        if (mknod(chr, 0775 | S_IFCHR, makedev(0, 0)) < 0) {
+                assert(ERRNO_IS_PRIVILEGE(errno));
+                chr = NULL;
+        }
 
         if (symlink(name, name_alias) < 0) {
                 assert_se(IN_SET(errno, EINVAL, ENOSYS, ENOTTY, EPERM));
@@ -169,13 +173,16 @@ TEST (test_dirent_is_file_with_suffix) {
                 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;
+        if (chr) {
+                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 d_type is not DT_REG, DT_LNK, or DT_UNKNOWN */
+                assert(de_chr);
+                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);