tests: add a very basic test for route cache

Hopefully more to come, and more to improve.

3 files changed, 91 insertions, 1 deletions

diff --git a/tests/cksuite-all-netns.c b/tests/cksuite-all-netns.c
index c6a5ce2..9b32ab8 100644
--- a/tests/cksuite-all-netns.c
+++ b/tests/cksuite-all-netns.c
@@ -302,6 +302,36 @@ END_TEST
 
 /*****************************************************************************/
 
+static void _route_init(int addr_family, struct nl_sock **sk,
+			struct nl_cache **cache)
+{
+	ck_assert(sk && !*sk);
+	ck_assert(cache && !*cache);
+
+	*sk = _nltst_socket(NETLINK_ROUTE);
+	*cache = _nltst_rtnl_route_alloc_cache(*sk, addr_family);
+}
+
+START_TEST(route_1)
+{
+	_nl_auto_nl_socket struct nl_sock *sk = NULL;
+	_nl_auto_nl_cache struct nl_cache *cache = NULL;
+
+	if (_nltst_skip_no_iproute2("route_1"))
+		return;
+
+	_nltst_add_link(NULL, "v1", "dummy", NULL);
+	_nltst_system("ip -d link set v1 up");
+
+	_route_init(AF_INET6, &sk, &cache);
+
+	_nltst_assert_route_cache(cache, "fe80::/64", "6 fe80::*/128",
+				  "ff00::/8");
+}
+END_TEST
+
+/*****************************************************************************/
+
 Suite *make_nl_netns_suite(void)
 {
 	Suite *suite = suite_create("netns");
@@ -311,7 +341,7 @@ Suite *make_nl_netns_suite(void)
 				  nltst_netns_fixture_teardown);
 	tcase_add_test(tc, cache_and_clone);
 	tcase_add_loop_test(tc, test_create_iface, 0, 17);
-
+	tcase_add_test(tc, route_1);
 	suite_add_tcase(suite, tc);
 
 	return suite;
diff --git a/tests/nl-test-util.c b/tests/nl-test-util.c
index 66fb4cb..99a51a4 100644
--- a/tests/nl-test-util.c
+++ b/tests/nl-test-util.c
@@ -990,3 +990,53 @@ bool _nltst_select_route_match(struct nl_object *route,
 
 	return false;
 }
+
+/*****************************************************************************/
+
+void _nltst_assert_route_list(struct nl_object *const *objs, ssize_t len,
+			      const char *const *expected_routes)
+{
+	size_t l;
+	size_t i;
+
+	if (len < 0) {
+		l = 0;
+		if (objs) {
+			while (objs[l])
+				l++;
+		}
+	} else
+		l = len;
+
+	for (i = 0; i < l; i++) {
+		struct nl_object *route = objs[i];
+		_nltst_auto_clear_select_route NLTstSelectRoute select_route = {
+			0
+		};
+		_nl_auto_free char *s = _nltst_object_to_string(route);
+
+		if (!expected_routes[i]) {
+			ck_abort_msg(
+				"No more expected route, but have route %zu (of %zu) as %s",
+				i + 1, l, s);
+		}
+
+		_nltst_select_route_parse(expected_routes[i], &select_route);
+
+		_nltst_select_route_match(route, &select_route, true);
+	}
+}
+
+void _nltst_assert_route_cache_v(struct nl_cache *cache,
+				 const char *const *expected_routes)
+{
+	_nl_auto_free struct nl_object **objs = NULL;
+	size_t len;
+
+	ck_assert(cache);
+	ck_assert(expected_routes);
+
+	objs = _nltst_cache_get_all(cache, &len);
+
+	_nltst_assert_route_list(objs, len, expected_routes);
+}
diff --git a/tests/nl-test-util.h b/tests/nl-test-util.h
index f843072..b751cc5 100644
--- a/tests/nl-test-util.h
+++ b/tests/nl-test-util.h
@@ -507,4 +507,14 @@ void _nltst_delete_link(struct nl_sock *sk, const char *ifname);
 void _nltst_get_link(struct nl_sock *sk, const char *ifname, int *out_ifindex,
 		     struct rtnl_link **out_link);
 
+void _nltst_assert_route_list(struct nl_object *const *objs, ssize_t len,
+			      const char *const *expected_routes);
+
+void _nltst_assert_route_cache_v(struct nl_cache *cache,
+				 const char *const *expected_routes);
+
+#define _nltst_assert_route_cache(cache, ...) \
+	_nltst_assert_route_cache_v(cache,    \
+				    ((const char *const[200]){ __VA_ARGS__ }))
+
 #endif /* __NL_TEST_UTIL_H__ */