tests: added parameter checks for zonecut

.gitignore

@@ -15,6 +15,7 @@
 *.6
 *.log
 *.inc
+*.mdb
 .dirstamp
 .libs
 .deps
@@ -46,3 +47,4 @@ tmp*
 /tests/test_pack
 /tests/test_set
 /tests/test_utils
+/tests/test_zonecut

lib/zonecut.c

@@ -65,7 +65,7 @@ static void update_cut_name(struct kr_zonecut *cut, const knot_dname_t *name)
 
 int kr_zonecut_init(struct kr_zonecut *cut, const knot_dname_t *name, mm_ctx_t *pool)
 {
-	if (cut == NULL) {
+	if (cut == NULL || name == NULL) {
 		return kr_error(EINVAL);
 	}
 
@@ -98,7 +98,7 @@ void kr_zonecut_deinit(struct kr_zonecut *cut)
 
 void kr_zonecut_set(struct kr_zonecut *cut, const knot_dname_t *name)
 {
-	if (cut == NULL) {
+	if (cut == NULL || name == NULL) {
 		return;
 	}
 	kr_zonecut_deinit(cut);

tests/test_zonecut.c

+/*  Copyright (C) 2014 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tests/test.h"
+#include "lib/zonecut.h"
+
+static void test_zonecut_params(void **state)
+{
+	/* NULL args */
+	struct kr_zonecut cut;
+	assert_int_not_equal(kr_zonecut_init(NULL, NULL, NULL), 0);
+	assert_int_not_equal(kr_zonecut_init(&cut, NULL, NULL), 0);
+	kr_zonecut_deinit(NULL);
+	kr_zonecut_set(NULL, NULL);
+	kr_zonecut_set(&cut, NULL);
+	assert_int_not_equal(kr_zonecut_add(NULL, NULL, NULL), 0);
+	assert_null(kr_zonecut_find(NULL, NULL));
+	assert_null(kr_zonecut_find(&cut, NULL));
+	assert_int_not_equal(kr_zonecut_set_sbelt(NULL), 0);
+	assert_int_not_equal(kr_zonecut_find_cached(NULL, NULL, 0), 0);
+}
+
+int main(void)
+{
+	const UnitTest tests[] = {
+	        unit_test(test_zonecut_params)
+	};
+
+	return run_tests(tests);
+}

tests/unit.mk

@@ -9,8 +9,9 @@ tests_BIN := \
 	test_pack \
 	test_utils \
 	test_module \
-	test_rplan \
 	test_cache \
+	test_zonecut \
+	test_rplan \
 	test_resolve
 
 mock_cmodule_SOURCES := tests/mock_cmodule.c