test: add tests for ip_protocol_{from,to}_name()

src/shared/meson.build

@@ -225,7 +225,8 @@ target2 = custom_target(
         command : [awk, '-f', '@INPUT0@', '@INPUT1@'],
         capture : true)
 
-shared_sources += [target1, target2]
+shared_generated_gperf_headers = [target1, target2]
+shared_sources += shared_generated_gperf_headers
 
 libshared_name = 'systemd-shared-@0@'.format(meson.project_version())
 

src/test/meson.build

@@ -646,6 +646,11 @@ tests += [
          [],
          []],
 
+        [['src/test/test-ip-protocol-list.c',
+          shared_generated_gperf_headers],
+         [],
+         []],
+
         [['src/test/test-journal-importer.c'],
          [],
          []],

src/test/test-ip-protocol-list.c

@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <netinet/in.h>
+
+#include "macro.h"
+#include "ip-protocol-list.h"
+#include "stdio-util.h"
+#include "string-util.h"
+
+static void test_int(int i) {
+        char str[DECIMAL_STR_MAX(int)];
+
+        assert_se(ip_protocol_from_name(ip_protocol_to_name(i)) == i);
+
+        xsprintf(str, "%i", i);
+        assert_se(ip_protocol_from_name(ip_protocol_to_name(parse_ip_protocol(str))) == i);
+}
+
+static void test_int_fail(int i) {
+        char str[DECIMAL_STR_MAX(int)];
+
+        assert_se(!ip_protocol_to_name(i));
+
+        xsprintf(str, "%i", i);
+        assert_se(parse_ip_protocol(str) == -EINVAL);
+}
+
+static void test_str(const char *s) {
+        assert_se(streq(ip_protocol_to_name(ip_protocol_from_name(s)), s));
+        assert_se(streq(ip_protocol_to_name(parse_ip_protocol(s)), s));
+}
+
+static void test_str_fail(const char *s) {
+        assert_se(ip_protocol_from_name(s) == -EINVAL);
+        assert_se(parse_ip_protocol(s) == -EINVAL);
+}
+
+static void test_parse_ip_protocol(const char *s, int expected) {
+        assert_se(parse_ip_protocol(s) == expected);
+}
+
+int main(int argc, const char *argv[]) {
+        test_int(IPPROTO_TCP);
+        test_int(IPPROTO_DCCP);
+        test_int_fail(-1);
+        test_int_fail(1024 * 1024);
+
+        test_str("sctp");
+        test_str("udp");
+        test_str_fail("hoge");
+        test_str_fail("-1");
+        test_str_fail("1000000000");
+
+        test_parse_ip_protocol("sctp", IPPROTO_SCTP);
+        test_parse_ip_protocol("ScTp", IPPROTO_SCTP);
+        test_parse_ip_protocol("ip", IPPROTO_IP);
+        test_parse_ip_protocol("", IPPROTO_IP);
+        test_parse_ip_protocol("1", 1);
+        test_parse_ip_protocol("0", 0);
+        test_parse_ip_protocol("-10", -EINVAL);
+        test_parse_ip_protocol("100000000", -EINVAL);
+
+        return 0;
+}