test-journal-importer: new test file to check the newly exported importer code

Only one test case is added, but it is enough to check basic sanity of the
code (single-line and binary fields and trusted fields, allocation and freeing).

.gitignore

@@ -220,6 +220,7 @@
 /test-journal
 /test-journal-enum
 /test-journal-flush
+/test-journal-importer
 /test-journal-init
 /test-journal-interleaving
 /test-journal-match

Makefile.am

@@ -1598,7 +1598,8 @@ tests += \
 	test-rlimit-util \
 	test-signal-util \
 	test-selinux \
-	test-sizeof
+	test-sizeof \
+	test-journal-importer
 
 if HAVE_ACL
 tests += \
@@ -2462,6 +2463,15 @@ test_arphrd_list_SOURCES = \
 test_arphrd_list_LDADD = \
 	libsystemd-shared.la
 
+test_journal_importer_SOURCES = \
+	src/test/test-journal-importer.c
+
+test_journal_importer_LDADD = \
+	libsystemd-shared.la
+
+EXTRA_DIST += \
+	test/journal-data/journal-1.txt
+
 # ------------------------------------------------------------------------------
 ## .PHONY so it always rebuilds it
 .PHONY: coverage lcov-run lcov-report coverage-sync

src/test/test-journal-importer.c

@@ -0,0 +1,74 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2016 Zbigniew Jędrzejewski-Szmek
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "log.h"
+#include "journal-importer.h"
+#include "string-util.h"
+#include "test-helper.h"
+
+static void assert_iovec_entry(const struct iovec *iovec, const char* content) {
+        assert_se(strlen(content) == iovec->iov_len);
+        assert_se(memcmp(content, iovec->iov_base, iovec->iov_len) == 0);
+}
+
+#define COREDUMP_PROC_GROUP                                             \
+        "COREDUMP_PROC_CGROUP=1:name=systemd:/\n"                       \
+        "0::/user.slice/user-1002.slice/user@1002.service/gnome-terminal-server.service\n"
+
+static void test_basic_parsing(void) {
+        _cleanup_(journal_importer_cleanup) JournalImporter imp = {};
+        int r;
+
+        imp.fd = open(TEST_DATA_DIR("/journal-data/journal-1.txt"), O_RDONLY|O_CLOEXEC);
+        assert_se(imp.fd >= 0);
+
+        do
+                r = journal_importer_process_data(&imp);
+        while (r == 0);
+        assert_se(r == 1);
+
+        /* We read one entry, so we should get EOF on next read, but not yet */
+        assert_se(!journal_importer_eof(&imp));
+
+        assert_se(imp.iovw.count == 6);
+        assert_iovec_entry(&imp.iovw.iovec[0], "_BOOT_ID=1531fd22ec84429e85ae888b12fadb91");
+        assert_iovec_entry(&imp.iovw.iovec[1], "_TRANSPORT=journal");
+        assert_iovec_entry(&imp.iovw.iovec[2], COREDUMP_PROC_GROUP);
+        assert_iovec_entry(&imp.iovw.iovec[3], "COREDUMP_RLIMIT=-1");
+        assert_iovec_entry(&imp.iovw.iovec[4], COREDUMP_PROC_GROUP);
+        assert_iovec_entry(&imp.iovw.iovec[5], "_SOURCE_REALTIME_TIMESTAMP=1478389147837945");
+
+        /* Let's check if we get EOF now */
+        r = journal_importer_process_data(&imp);
+        assert_se(r == 0);
+        assert_se(journal_importer_eof(&imp));
+}
+
+int main(int argc, char **argv) {
+        log_set_max_level(LOG_DEBUG);
+        log_parse_environment();
+
+        test_basic_parsing();
+
+        return 0;
+}