test-verbs: add unit tests for verbs minilib

1 files changed, 78 insertions, 0 deletions

diff --git a/src/test/test-verbs.c b/src/test/test-verbs.c
new file mode 100644
index 0000000000..0fcdd9e78d
--- /dev/null
+++ b/src/test/test-verbs.c
@@ -0,0 +1,78 @@
+/***
+  This file is part of systemd.
+
+  Copyright 2014 systemd developers
+
+  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 "macro.h"
+#include "strv.h"
+#include "verbs.h"
+
+static int noop_dispatcher(int argc, char *argv[], void *userdata) {
+        return 0;
+}
+
+#define test_dispatch_one(argv, verbs, expected) \
+        optind = 0; \
+        assert_se(dispatch_verb(strv_length(argv), argv, verbs, NULL) == expected);
+
+static void test_verbs(void) {
+        static const Verb verbs[] = {
+                { "help",        VERB_ANY, VERB_ANY, 0,            noop_dispatcher },
+                { "list-images", VERB_ANY, 1,        0,            noop_dispatcher },
+                { "list",        VERB_ANY, 2,        VERB_DEFAULT, noop_dispatcher },
+                { "status",      2,        VERB_ANY, 0,            noop_dispatcher },
+                { "show",        VERB_ANY, VERB_ANY, 0,            noop_dispatcher },
+                { "terminate",   2,        VERB_ANY, 0,            noop_dispatcher },
+                { "login",       2,        2,        0,            noop_dispatcher },
+                { "copy-to",     3,        4,        0,            noop_dispatcher },
+                {}
+        };
+
+        /* not found */
+        test_dispatch_one(STRV_MAKE("command-not-found"), verbs, -EINVAL);
+
+        /* found */
+        test_dispatch_one(STRV_MAKE("show"), verbs, 0);
+
+        /* found, too few args */
+        test_dispatch_one(STRV_MAKE("copy-to", "foo"), verbs, -EINVAL);
+
+        /* found, meets min args */
+        test_dispatch_one(STRV_MAKE("status", "foo", "bar"), verbs, 0);
+
+        /* found, too many args */
+        test_dispatch_one(STRV_MAKE("copy-to", "foo", "bar", "baz", "quux", "qaax"), verbs, -EINVAL);
+
+        /* no verb, but a default is set */
+        test_dispatch_one(STRV_MAKE_EMPTY, verbs, 0);
+}
+
+static void test_verbs_no_default(void) {
+        static const Verb verbs[] = {
+                { "help", VERB_ANY, VERB_ANY, 0, noop_dispatcher },
+                {},
+        };
+
+        test_dispatch_one(STRV_MAKE(NULL), verbs, -EINVAL);
+}
+
+int main(int argc, char *argv[]) {
+        test_verbs();
+        test_verbs_no_default();
+
+        return 0;
+}