tests: add tests for lxc.cgroup.dir

src/lxc/confile.c

@@ -4419,6 +4419,8 @@ int lxc_list_subkeys(struct lxc_conf *conf, const char *key, char *retv,
 	if (!strcmp(key, "lxc.apparmor")) {
 		strprint(retv, inlen, "allow_incomplete\n");
 		strprint(retv, inlen, "profile\n");
+	} else if (!strcmp(key, "lxc.cgroup")) {
+		strprint(retv, inlen, "dir\n");
 	} else if (!strcmp(key, "lxc.selinux")) {
 		strprint(retv, inlen, "context\n");
 	} else if (!strcmp(key, "lxc.mount")) {

src/tests/getkeys.c

@@ -163,6 +163,14 @@ int main(int argc, char *argv[])
 	}
 	printf("get_keys returned %d\n%s", ret, v3);
 
+	ret = c->get_keys(c, "lxc.cgroup", v3, 2000);
+	if (ret < 0) {
+		fprintf(stderr, "%d: failed to get keys(%d)\n", __LINE__, ret);
+		ret = 1;
+		goto out;
+	}
+	printf("get_keys returned %d\n%s", ret, v3);
+
 	ret = 0;
 
 out:

src/tests/parse_config_file.c

@@ -1031,6 +1031,12 @@ int main(int argc, char *argv[])
 		goto non_test_error;
 	}
 
+	if (set_get_compare_clear_save_load(c, "lxc.cgroup.dir", "lxd", tmpf,
+					    true)) {
+		lxc_error("%s\n", "lxc.cgroup.dir");
+		goto non_test_error;
+	}
+
 	if (set_and_clear_complete_netdev(c) < 0) {
 		lxc_error("%s\n", "failed to clear whole network");
 		goto non_test_error;