1 files changed, 45 insertions, 0 deletions
diff --git a/src/libsystemd/sd-journal/test-journal-file.c b/src/libsystemd/sd-journal/test-journal-file.c
new file mode 100644
index 0000000..729de1f
--- /dev/null
+++ b/src/libsystemd/sd-journal/test-journal-file.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "journal-file.h"
+#include "tests.h"
+#include "user-util.h"
+
+static void test_journal_file_parse_uid_from_filename_simple(
+                const char *path,
+                uid_t expected_uid,
+                int expected_error) {
+
+        uid_t uid = UID_INVALID;
+        int r;
+
+        log_info("testing %s", path);
+
+        r = journal_file_parse_uid_from_filename(path, &uid);
+        assert_se(r == expected_error);
+        if (r < 0)
+                assert_se(uid == UID_INVALID);
+        else
+                assert_se(uid == expected_uid);
+}
+
+TEST(journal_file_parse_uid_from_filename) {
+
+        test_journal_file_parse_uid_from_filename_simple("/var/log/journal/", 0, -EISDIR);
+
+        /* The helper should return -EREMOTE for any filenames that don't look like an online or offline user
+         * journals. This includes archived and disposed journal files. */
+        test_journal_file_parse_uid_from_filename_simple("/etc/password", 0, -EREMOTE);
+        test_journal_file_parse_uid_from_filename_simple("system.journal", 0, -EREMOTE);
+        test_journal_file_parse_uid_from_filename_simple("user-1000@0005d26980bdce6e-2f2a4939583822ef.journal~", 0, -EREMOTE);
+        test_journal_file_parse_uid_from_filename_simple("user-1000@xxx-yyy-zzz.journal", 0, -EREMOTE);
+
+        test_journal_file_parse_uid_from_filename_simple("user-1000.journal", 1000, 0);
+        test_journal_file_parse_uid_from_filename_simple("user-foo.journal", 0, -EINVAL);
+        test_journal_file_parse_uid_from_filename_simple("user-65535.journal", 0, -ENXIO);
+}
+
+DEFINE_TEST_MAIN(LOG_INFO);