test: ensure conf_files_list returns absolute paths

.gitignore

@@ -138,6 +138,7 @@
 /test-cgroup
 /test-cgroup-mask
 /test-cgroup-util
+/test-conf-files
 /test-daemon
 /test-date
 /test-device-nodes

Makefile.am

@@ -1243,7 +1243,8 @@ tests += \
 	test-xml \
 	test-architecture \
 	test-socket-util \
-	test-fdset
+	test-fdset \
+	test-conf-files
 
 EXTRA_DIST += \
 	test/sched_idle_bad.service \
@@ -1600,6 +1601,12 @@ test_sched_prio_LDADD = \
 	libsystemd-core.la \
 	$(RT_LIBS)
 
+test_conf_files_SOURCES = \
+	src/test/test-conf-files.c
+
+test_conf_files_LDADD = \
+	libsystemd-shared.la
+
 # ------------------------------------------------------------------------------
 ## .PHONY so it always rebuilds it
 .PHONY: coverage lcov-run lcov-report coverage-sync

src/test/test-conf-files.c

@@ -0,0 +1,84 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2014 Michael Marineau
+
+  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 <stdio.h>
+#include <stdarg.h>
+
+#include "conf-files.h"
+#include "macro.h"
+#include "strv.h"
+#include "util.h"
+
+
+static void setup_test_dir(char *tmp_dir, const char *files, ...) {
+        va_list ap;
+
+        assert_se(mkdtemp(tmp_dir) != NULL);
+
+        va_start(ap, files);
+        while (files != NULL) {
+                _cleanup_free_ char *path = strappend(tmp_dir, files);
+                assert_se(touch_file(path, true, (usec_t) -1, (uid_t) -1, (gid_t) -1, 0) == 0);
+                files = va_arg(ap, const char *);
+        }
+        va_end(ap);
+}
+
+static void test_conf_files_list(bool use_root) {
+        char tmp_dir[] = "/tmp/test-conf-files-XXXXXX";
+        _cleanup_strv_free_ char **found_files = NULL;
+        const char *root_dir, *search_1, *search_2, *expect_a, *expect_b;
+
+        setup_test_dir(tmp_dir,
+                       "/dir1/a.conf",
+                       "/dir2/a.conf",
+                       "/dir2/b.conf",
+                       NULL);
+
+        if (use_root) {
+                root_dir = tmp_dir;
+                search_1 = "/dir1";
+                search_2 = "/dir2";
+        } else {
+                root_dir = NULL;
+                search_1 = strappenda(tmp_dir, "/dir1");
+                search_2 = strappenda(tmp_dir, "/dir2");
+        }
+
+        expect_a = strappenda(tmp_dir, "/dir1/a.conf");
+        expect_b = strappenda(tmp_dir, "/dir2/b.conf");
+
+        assert_se(conf_files_list(&found_files, ".conf", root_dir, search_1, search_2, NULL) == 0);
+        strv_print(found_files);
+
+        assert_se(found_files);
+        assert_se(streq_ptr(found_files[0], expect_a));
+        assert_se(streq_ptr(found_files[1], expect_b));
+        assert_se(found_files[2] == NULL);
+
+        assert_se(rm_rf_dangerous(tmp_dir, false, true, false) == 0);
+}
+
+int main(int argc, char **argv) {
+        test_conf_files_list(false);
+        test_conf_files_list(true);
+        return 0;
+}